1
|
Pérez-Ibáñez C, Peñaflor-Téllez Y, Miguel Rodríguez CE, Gutiérrez Escolano AL. The Feline calicivirus capsid protein VP1 is a client of the molecular chaperone Hsp90. J Gen Virol 2024; 105. [PMID: 39373166 DOI: 10.1099/jgv.0.002030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/08/2024] Open
Abstract
Feline calicivirus (FCV) icosahedral viral capsids are composed of dozens of structural subunits that rely on cellular chaperones to self-assemble in an orderly fashion. Here, we report that the heat shock protein 90 (Hsp90) inhibition significantly reduced FCV particle production, suggesting a role in the replicative cycle. We found that Hsp90 inhibition was not related to the synthesis or stability of the early proteins that translate from the gRNA nor to the minor capsid protein VP2 but with a reduction in the major capsid protein VP1 levels, both translated late in infection from the subgenomic RNAs. Reduction in VP1 levels was observed despite an augment of the leader of the capsid (LC)-VP1 precursor levels, from which the LC and VP1 proteins are produced after proteolytic processing by NS6/7. The direct interaction of VP1 with Hsp90 was observed in infected cells. These results suggest that upon release from the polyprotein precursor, VP1 becomes a client of Hsp90 and that this interaction is required for an efficient FCV replicative cycle.
Collapse
Affiliation(s)
- Carolina Pérez-Ibáñez
- Departamento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mexico City, Mexico
| | - Yoatzin Peñaflor-Téllez
- Departamento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mexico City, Mexico
| | - Carlos Emilio Miguel Rodríguez
- Departamento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mexico City, Mexico
| | - Ana Lorena Gutiérrez Escolano
- Departamento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mexico City, Mexico
| |
Collapse
|
2
|
Shi J, Li C, Liang Q, Yao Y, Ji Z, Zhou M, Cai J, Yao X, Zhang X. HSP90-regulated mitophagy can alleviate heat stress damage by inhibiting pyroptosis in the hepatocytes of Wenchang chickens. Int J Biol Macromol 2024; 280:135979. [PMID: 39332550 DOI: 10.1016/j.ijbiomac.2024.135979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2024] [Revised: 09/21/2024] [Accepted: 09/22/2024] [Indexed: 09/29/2024]
Abstract
Heat shock protein 90 (HSP90) has a recognized anti-heat stress injury effect, but its function and corresponding molecular mechanism in heat-stressed hepatocytes are not fully understood, especially in tropical animals. In the present study, we identified several key factors affecting resistance to injury liver tissues from heat-stressed Wenchang chickens (a typical tropical species), such as HSP90, cellular pyroptosis and mitophagy. Heat stress upregulated the NLRP3/Caspase-1/GSDMD-N-mediated cellular pyroptosis pathway and the Pink1/Parkin-mediated mitophagy pathway in chicken hepatocytes, accompanied by the upregulation of HSP90. We also found that HSP90 overexpression significantly reduced heat stress-induced hepatocyte pyroptosis and enhanced mitophagy in primary hepatocytes from Wenchang chickens (PHWCs). HSP90 knockdown significantly increased heat stress-induced hepatocyte pyroptosis and decreased mitophagy in PHWCs. Interestingly, we performed immunoprecipitation and immunofluorescence colocalization and found that HSP90 and Pink1 can interact and directly regulate the level of mitophagy in PHWCs. Our results suggest that HSP90, which regulates Pink1, is an important factor in mitophagy that attenuates heat stress injury by inhibiting cellular pyroptosis.
Collapse
Affiliation(s)
- Jiachen Shi
- Key Laboratory of Tropical Animal Breeding and Epidemic Disease Research of Hainan Province, School of Tropical Agriculture and Forestry, Hainan University, Haikou 570100, China
| | - Chengyun Li
- Key Laboratory of Tropical Animal Breeding and Epidemic Disease Research of Hainan Province, School of Tropical Agriculture and Forestry, Hainan University, Haikou 570100, China
| | - Qijun Liang
- Key Laboratory of Tropical Animal Breeding and Epidemic Disease Research of Hainan Province, School of Tropical Agriculture and Forestry, Hainan University, Haikou 570100, China
| | - Yujie Yao
- Key Laboratory of Tropical Animal Breeding and Epidemic Disease Research of Hainan Province, School of Tropical Agriculture and Forestry, Hainan University, Haikou 570100, China
| | - Zeping Ji
- Key Laboratory of Tropical Animal Breeding and Epidemic Disease Research of Hainan Province, School of Tropical Agriculture and Forestry, Hainan University, Haikou 570100, China
| | - Menglin Zhou
- Key Laboratory of Tropical Animal Breeding and Epidemic Disease Research of Hainan Province, School of Tropical Agriculture and Forestry, Hainan University, Haikou 570100, China
| | - Jiawei Cai
- Key Laboratory of Tropical Animal Breeding and Epidemic Disease Research of Hainan Province, School of Tropical Agriculture and Forestry, Hainan University, Haikou 570100, China
| | - Xu Yao
- Key Laboratory of Tropical Animal Breeding and Epidemic Disease Research of Hainan Province, School of Tropical Agriculture and Forestry, Hainan University, Haikou 570100, China
| | - Xiaohui Zhang
- Key Laboratory of Tropical Animal Breeding and Epidemic Disease Research of Hainan Province, School of Tropical Agriculture and Forestry, Hainan University, Haikou 570100, China.
| |
Collapse
|
3
|
Xiong R, Shao D, Do S, Chan WK. Activation of Chaperone-Mediated Autophagy Inhibits the Aryl Hydrocarbon Receptor Function by Degrading This Receptor in Human Lung Epithelial Carcinoma A549 Cells. Int J Mol Sci 2023; 24:15116. [PMID: 37894798 PMCID: PMC10606571 DOI: 10.3390/ijms242015116] [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: 09/13/2023] [Revised: 10/07/2023] [Accepted: 10/08/2023] [Indexed: 10/29/2023] Open
Abstract
The aryl hydrocarbon receptor (AHR) is a ligand-activated transcription factor and a substrate protein of a Cullin 4B E3 ligase complex responsible for diverse cellular processes. In the lung, this receptor is responsible for the bioactivation of benzo[a]pyrene during tumorigenesis. Realizing that the AHR function is affected by its expression level, we are interested in the degradation mechanism of AHR in the lung. Here, we have investigated the mechanism responsible for AHR degradation using human lung epithelial A549 cells. We have observed that the AHR protein levels increase in the presence of chloroquine (CQ), an autophagy inhibitor, in a dose-dependent manner. Treatment with 6-aminonicotinamide (6-AN), a chaperone-mediated autophagy (CMA) activator, decreases AHR protein levels in a concentration-dependent and time-dependent manner. This decrease suppresses the ligand-dependent activation of the AHR target gene transcription, and can be reversed by CQ but not MG132. Knockdown of lysosome-associated membrane protein 2 (LAMP2), but not autophagy-related 5 (ATG5), suppresses the chloroquine-mediated increase in the AHR protein. AHR is resistant to CMA when its CMA motif is mutated. Suppression of the epithelial-to-mesenchymal transition in A549 cells is observed when the AHR gene is knocked out or the AHR protein level is reduced by 6-AN. Collectively, we have provided evidence supporting that AHR is continuously undergoing CMA and activation of CMA suppresses the AHR function in A549 cells.
Collapse
Affiliation(s)
| | | | | | - William K. Chan
- Department of Pharmaceutics & Medicinal Chemistry, Thomas J. Long School of Pharmacy, University of the Pacific, Stockton, CA 95211, USA; (R.X.); (D.S.); (S.D.)
| |
Collapse
|
4
|
Wang X, Bai G, Liu R, Zhu X, Ye X, Zhang T, Zhang K, Bonne D, Rodriguez J, Wang H, Bao X. Enantioselective Nucleophilic Vinylic Substitution (S NV) toward 3-Alkenyl-bisoxindoles Facilitated by C6' Steric Bulk of Cinchona Alkaloid. Org Lett 2023; 25:5941-5945. [PMID: 37535818 DOI: 10.1021/acs.orglett.3c01964] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/05/2023]
Abstract
A C6' bulky substituted quinine-catalyzed SNV reaction between 3-substituted oxindole and (E)-3-(nitromethylene)-oxindole was developed. This enantioselective C(sp3)-C(sp2) coupling furnished bisoxindole scaffolds featuring a vinyl-substituted all-carbon quaternary stereocenter with high stereoselectivities. In addition, the gram-scale synthesis and synthetic post-transformations were conducted to demonstrate the potential synthetic usefulness.
Collapse
Affiliation(s)
- Xingyue Wang
- College of Pharmaceutical Science and Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China
| | - Guishun Bai
- College of Pharmaceutical Science and Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China
| | - Ruoqi Liu
- College of Pharmaceutical Science and Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China
| | - Xiaoli Zhu
- College of Pharmaceutical Science and Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China
| | - Xinyi Ye
- College of Pharmaceutical Science and Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China
| | - Tao Zhang
- Shaoxing Minsheng Pharmaceutical Co., Ltd, Shaoxing 312071, China
| | - Kui Zhang
- Shaoxing Minsheng Pharmaceutical Co., Ltd, Shaoxing 312071, China
| | - Damien Bonne
- Aix Marseille University, CNRS, Centrale Marseille, iSm2, 13013 Marseille, France
| | - Jean Rodriguez
- Aix Marseille University, CNRS, Centrale Marseille, iSm2, 13013 Marseille, France
| | - Hong Wang
- College of Pharmaceutical Science and Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China
| | - Xiaoze Bao
- College of Pharmaceutical Science and Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China
| |
Collapse
|
5
|
Mauro AG, Mezzaroma E, Toldo S, Melendez GC, Franco RL, Lesnefsky EJ, Abbate A, Hundley WG, Salloum FN. NLRP3-mediated inflammation in cardio-oncology: sterile yet harmful. Transl Res 2023; 252:9-20. [PMID: 35948198 PMCID: PMC9839540 DOI: 10.1016/j.trsl.2022.08.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 07/28/2022] [Accepted: 08/03/2022] [Indexed: 01/17/2023]
Abstract
Despite significant advances and the continuous development of novel, effective therapies to treat a variety of malignancies, cancer therapy-induced cardiotoxicity has been identified as a prominent cause of morbidity and mortality, closely competing with secondary malignancies. This unfortunate limitation has prompted the inception of the field of cardio-oncology with its purpose to provide the necessary knowledge and key information on mechanisms that support the use of the most efficacious cancer therapy with minimal or no interruption while paying close attention to preventing cardiovascular related morbidity and mortality. Several mechanisms that contribute to cancer therapy-induced cardiotoxicity have been proposed and studied. These mainly involve mitochondrial dysfunction and reactive oxygen species-induced oxidative stress, lysosomal damage, impaired autophagy, cell senescence, DNA damage, and sterile inflammation with the formation and activation of the NLRP3 inflammasome. In this review, we focus on describing the principal mechanisms for different classes of cancer therapies that lead to cardiotoxicity involving the NLRP3 inflammasome. We also summarize current evidence of cardio-protection with inflammasome inhibitors in the context of heart disease in general, and further highlight the potential application of this evidence for clinical translation in at risk patients for the purpose of preventing cancer therapy associated cardiovascular morbidity and mortality.
Collapse
Affiliation(s)
- Adolfo G Mauro
- Pauley Heart Center, Department of Internal Medicine, Cardiology, Virginia Commonwealth University, Richmond, VA
| | - Eleonora Mezzaroma
- Pauley Heart Center, Department of Internal Medicine, Cardiology, Virginia Commonwealth University, Richmond, VA
| | - Stefano Toldo
- Pauley Heart Center, Department of Internal Medicine, Cardiology, Virginia Commonwealth University, Richmond, VA
| | - Giselle C Melendez
- Department of Internal Medicine, Sections on Cardiovascular Medicine, Department of Pathology, Section on Comparative Medicine, Wake Forest, School of Medicine, Winston-Salem, NC
| | - R Lee Franco
- College of Humanities and Sciences, Department of Kinesiology and Health Sciences, Virginia Commonwealth University, Richmond, VA
| | - Edward J Lesnefsky
- Pauley Heart Center, Department of Internal Medicine, Cardiology, Virginia Commonwealth University, Richmond, VA; Department of the Medical Service of the McGuire Veterans Affairs Medical Center, Richmond, VA
| | - Antonio Abbate
- Pauley Heart Center, Department of Internal Medicine, Cardiology, Virginia Commonwealth University, Richmond, VA
| | - W Gregory Hundley
- Pauley Heart Center, Department of Internal Medicine, Cardiology, Virginia Commonwealth University, Richmond, VA
| | - Fadi N Salloum
- Pauley Heart Center, Department of Internal Medicine, Cardiology, Virginia Commonwealth University, Richmond, VA.
| |
Collapse
|
6
|
Zhou J, Tan Y, Hu L, Fu J, Li D, Chen J, Long Y. Inhibition of HSPA8 by rifampicin contributes to ferroptosis via enhancing autophagy. Liver Int 2022; 42:2889-2899. [PMID: 36254713 DOI: 10.1111/liv.15459] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 08/17/2022] [Accepted: 08/24/2022] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIM Rifampicin is the most common pathogenic factor in anti-tuberculosis drug-induced liver injury (AT-DILI), the mechanisms that it promotes hepatocyte damage in AT-DILI are not yet to be thoroughly elucidated. In this study, we investigated the potential molecular mechanisms for ferroptosis involving rifampicin hepatotoxicity. METHODS Animal and cell injury models of rifampicin were constructed, and the toxicity of rifampicin was assessed by physicochemical staining and cell viability assay. Next, flow cytometry was employed to detect changes in ferroptosis-related markers, and Western blotting was used to detect protein expression. Then, the important role of autophagy and ferroptosis was verified with small molecule compound intervention. RESULTS We found that ferritinophagy-induced ferroptosis participates in the toxicity of rifampicin, and the mechanism is that rifampicin precisely activates high-throughput autophagy, which leads to the massive degradation of ferritin and the increase of free iron. Moreover, rifampicin exhibited conspicuous inhibition of Human 71 kDa heat shock cognate protein (HSPA8) that is intimately associated with Microtubule-associated protein light chain 3 isoform B (LC3B) expression, in turn, HSPA8 inducer attenuated intracellular autophagy flux. Of note, inducing HSPA8 or inhibition of autophagy and ferroptosis considerably relieved the hepatotoxicity of rifampicin in mouse model. CONCLUSIONS The present study highlights the crucial roles of the HSPA8 and autophagy in ferroptotic cell death driving by rifampicin, particularly illumines multiple promising regulatory nodes for therapeutic interventions in diseases involving AT-DILI.
Collapse
Affiliation(s)
- Juan Zhou
- Department of Infectious Diseases, Zhuzhou Hospital Affiliated to Xiangya School of Medicine, Central South University, Zhuzhou, Hunan, China
| | - Yingzheng Tan
- Department of Infectious Diseases, Zhuzhou Hospital Affiliated to Xiangya School of Medicine, Central South University, Zhuzhou, Hunan, China
| | - Lingli Hu
- Department of Infectious Diseases, Zhuzhou Hospital Affiliated to Xiangya School of Medicine, Central South University, Zhuzhou, Hunan, China
| | - Jingli Fu
- Department of Infectious Diseases, Zhuzhou Hospital Affiliated to Xiangya School of Medicine, Central South University, Zhuzhou, Hunan, China
| | - Dan Li
- Department of Infectious Diseases, Zhuzhou Hospital Affiliated to Xiangya School of Medicine, Central South University, Zhuzhou, Hunan, China
| | - Jun Chen
- Department of Liver Diseases, Third Hospital of Shenzhen, The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Yunzhu Long
- Department of Infectious Diseases, Zhuzhou Hospital Affiliated to Xiangya School of Medicine, Central South University, Zhuzhou, Hunan, China
| |
Collapse
|
7
|
HSP90 mediates the connection of multiple programmed cell death in diseases. Cell Death Dis 2022; 13:929. [PMID: 36335088 PMCID: PMC9637177 DOI: 10.1038/s41419-022-05373-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 10/19/2022] [Accepted: 10/24/2022] [Indexed: 11/07/2022]
Abstract
Heat shock protein (HSP) 90, an important component of the molecular chaperone network, is closely concerned with cellular signaling pathways and stress response by participating in the process of maturation and activation of client proteins, playing a crucial role both in the normal and abnormal operation of the organism. In functionally defective tissues, programmed cell death (PCD) is one of the regulable fundamental mechanisms mediated by HSP90, including apoptosis, autophagy, necroptosis, ferroptosis, and others. Here, we show the complex relationship between HSP90 and different types of PCD in various diseases, and discuss the possibility of HSP90 as the common regulatory nodal in multiple PCD, which would provide a new perspective for the therapeutic approaches in disease.
Collapse
|
8
|
Kumar S, Basu M, Ghosh MK. Chaperone-assisted E3 ligase CHIP: A double agent in cancer. Genes Dis 2022; 9:1521-1555. [PMID: 36157498 PMCID: PMC9485218 DOI: 10.1016/j.gendis.2021.08.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 08/06/2021] [Indexed: 12/11/2022] Open
Abstract
The carboxy-terminus of Hsp70-interacting protein (CHIP) is a ubiquitin ligase and co-chaperone belonging to Ubox family that plays a crucial role in the maintenance of cellular homeostasis by switching the equilibrium of the folding-refolding mechanism towards the proteasomal or lysosomal degradation pathway. It links molecular chaperones viz. HSC70, HSP70 and HSP90 with ubiquitin proteasome system (UPS), acting as a quality control system. CHIP contains charged domain in between N-terminal tetratricopeptide repeat (TPR) and C-terminal Ubox domain. TPR domain interacts with the aberrant client proteins via chaperones while Ubox domain facilitates the ubiquitin transfer to the client proteins for ubiquitination. Thus, CHIP is a classic molecule that executes ubiquitination for degradation of client proteins. Further, CHIP has been found to be indulged in cellular differentiation, proliferation, metastasis and tumorigenesis. Additionally, CHIP can play its dual role as a tumor suppressor as well as an oncogene in numerous malignancies, thus acting as a double agent. Here, in this review, we have reported almost all substrates of CHIP established till date and classified them according to the hallmarks of cancer. In addition, we discussed about its architectural alignment, tissue specific expression, sub-cellular localization, folding-refolding mechanisms of client proteins, E4 ligase activity, normal physiological roles, as well as involvement in various diseases and tumor biology. Further, we aim to discuss its importance in HSP90 inhibitors mediated cancer therapy. Thus, this report concludes that CHIP may be a promising and worthy drug target towards pharmaceutical industry for drug development.
Collapse
Affiliation(s)
- Sunny Kumar
- Cancer Biology and Inflammatory Disorder Division, Council of Scientific and Industrial Research-Indian Institute of Chemical Biology (CSIR-IICB), TRUE Campus, CN-6, Sector–V, Salt Lake, Kolkata- 700091 & 4, Raja S.C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Malini Basu
- Department of Microbiology, Dhruba Chand Halder College, Dakshin Barasat, South 24 Paraganas, West Bengal 743372, India
| | - Mrinal K. Ghosh
- Cancer Biology and Inflammatory Disorder Division, Council of Scientific and Industrial Research-Indian Institute of Chemical Biology (CSIR-IICB), TRUE Campus, CN-6, Sector–V, Salt Lake, Kolkata- 700091 & 4, Raja S.C. Mullick Road, Jadavpur, Kolkata 700032, India
| |
Collapse
|
9
|
Zou L, Liao M, Zhen Y, Zhu S, Chen X, Zhang J, Hao Y, Liu B. Autophagy and beyond: Unraveling the complexity of UNC-51-like kinase 1 (ULK1) from biological functions to therapeutic implications. Acta Pharm Sin B 2022; 12:3743-3782. [PMID: 36213540 PMCID: PMC9532564 DOI: 10.1016/j.apsb.2022.06.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 05/27/2022] [Accepted: 06/02/2022] [Indexed: 12/13/2022] Open
Abstract
UNC-51-like kinase 1 (ULK1), as a serine/threonine kinase, is an autophagic initiator in mammals and a homologous protein of autophagy related protein (Atg) 1 in yeast and of UNC-51 in Caenorhabditis elegans. ULK1 is well-known for autophagy activation, which is evolutionarily conserved in protein transport and indispensable to maintain cell homeostasis. As the direct target of energy and nutrition-sensing kinase, ULK1 may contribute to the distribution and utilization of cellular resources in response to metabolism and is closely associated with multiple pathophysiological processes. Moreover, ULK1 has been widely reported to play a crucial role in human diseases, including cancer, neurodegenerative diseases, cardiovascular disease, and infections, and subsequently targeted small-molecule inhibitors or activators are also demonstrated. Interestingly, the non-autophagy function of ULK1 has been emerging, indicating that non-autophagy-relevant ULK1 signaling network is also linked with diseases under some specific contexts. Therefore, in this review, we summarized the structure and functions of ULK1 as an autophagic initiator, with a focus on some new approaches, and further elucidated the key roles of ULK1 in autophagy and non-autophagy. Additionally, we also discussed the relationships between ULK1 and human diseases, as well as illustrated a rapid progress for better understanding of the discovery of more candidate small-molecule drugs targeting ULK1, which will provide a clue on novel ULK1-targeted therapeutics in the future.
Collapse
Affiliation(s)
- Ling Zou
- School of Pharmaceutical Sciences, Health Science Center, Shenzhen University, Shenzhen 518060, China
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Minru Liao
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yongqi Zhen
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Shiou Zhu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xiya Chen
- School of Pharmaceutical Sciences, Health Science Center, Shenzhen University, Shenzhen 518060, China
| | - Jin Zhang
- School of Pharmaceutical Sciences, Health Science Center, Shenzhen University, Shenzhen 518060, China
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
- Corresponding authors. Tel./fax: +86 28 85503817.
| | - Yue Hao
- School of Pharmaceutical Sciences, Health Science Center, Shenzhen University, Shenzhen 518060, China
- Corresponding authors. Tel./fax: +86 28 85503817.
| | - Bo Liu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
- Corresponding authors. Tel./fax: +86 28 85503817.
| |
Collapse
|
10
|
Xu Z, Jin Y, Gao Z, Zeng Y, Du J, Yan H, Chen X, Ping L, Lin N, Yang B, He Q, Luo P. Autophagic degradation of CCN2 (cellular communication network factor 2) causes cardiotoxicity of sunitinib. Autophagy 2021; 18:1152-1173. [PMID: 34432562 DOI: 10.1080/15548627.2021.1965712] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
Excessive macroautophagy/autophagy is one of the causes of cardiomyocyte death induced by cardiovascular diseases or cancer therapy, yet the underlying mechanism remains unknown. We and other groups previously reported that autophagy might contribute to cardiomyocyte death caused by sunitinib, a tumor angiogenesis inhibitor that is widely used in clinic, which may help to understand the mechanism of autophagy-induced cardiomyocyte death. Here, we found that sunitinib-induced autophagy leads to apoptosis of cardiomyocyte and cardiac dysfunction as the cardiomyocyte-specific Atg7-/+ heterozygous mice are resistant to sunitinib. Sunitinib-induced maladaptive autophagy selectively degrades the cardiomyocyte survival mediator CCN2 (cellular communication network factor 2) through the TOLLIP (toll interacting protein)-mediated endosome-related pathway and cardiomyocyte-specific knockdown of Ccn2 through adeno-associated virus serotype 9 (AAV9) mimics sunitinib-induced cardiac dysfunction in vivo, suggesting that the autophagic degradation of CCN2 is one of the causes of sunitinib-induced cardiotoxicity and death of cardiomyocytes. Remarkably, deletion of Hmgb1 (high mobility group box 1) inhibited sunitinib-induced cardiomyocyte autophagy and apoptosis, and the HMGB1-specific inhibitor glycyrrhizic acid (GA) significantly mitigated sunitinib-induced autophagy, cardiomyocyte death and cardiotoxicity. Our study reveals a novel target protein of autophagic degradation in the regulation of cardiomyocyte death and highlights the pharmacological inhibitor of HMGB1 as an attractive approach for improving the safety of sunitinib-based cancer therapy.
Collapse
Affiliation(s)
- Zhifei Xu
- Center for Drug Safety Evaluation and Research of Zhejiang University, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, P.R.China
| | - Ying Jin
- Center for Drug Safety Evaluation and Research of Zhejiang University, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, P.R.China
| | - Zizheng Gao
- Center for Drug Safety Evaluation and Research of Zhejiang University, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, P.R.China
| | - Yan Zeng
- Center for Drug Safety Evaluation and Research of Zhejiang University, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, P.R.China
| | - Jiangxia Du
- Center for Drug Safety Evaluation and Research of Zhejiang University, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, P.R.China
| | - Hao Yan
- Center for Drug Safety Evaluation and Research of Zhejiang University, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, P.R.China
| | - Xueqin Chen
- Department of Oncology, Hangzhou First People's Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, P.R.China
| | - Li Ping
- Center for Drug Safety Evaluation and Research of Zhejiang University, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, P.R.China
| | - Nengming Lin
- Department of Clinical Pharmacology, Key Laboratory of Clinical Cancer Pharmacology and Toxicology Research of Zhejiang Province, Affiliated Hangzhou First People's Hospital, Cancer Center, Zhejiang University School of Medicine, Hangzhou, Zhejiang, P.R.China
| | - Bo Yang
- Institute of Pharmacology & Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, P.R.China
| | - Qiaojun He
- Center for Drug Safety Evaluation and Research of Zhejiang University, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, P.R.China.,Innovation Institute for Artificial Intelligence in Medicine of Zhejiang University, Hangzhou, Zhejiang, P.R.China.,Department of Cardiology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, P.R. China
| | - Peihua Luo
- Center for Drug Safety Evaluation and Research of Zhejiang University, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, P.R.China.,Department of Pharmacology and Toxicology, Hangzhou Institute of Innovative Medicine, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, P.R. China
| |
Collapse
|
11
|
Elaiophylin Is a Potent Hsp90/ Cdc37 Protein Interface Inhibitor with K-Ras Nanocluster Selectivity. Biomolecules 2021; 11:biom11060836. [PMID: 34199986 PMCID: PMC8229862 DOI: 10.3390/biom11060836] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/27/2021] [Accepted: 06/01/2021] [Indexed: 12/19/2022] Open
Abstract
The natural product elaiophylin is a macrodiolide with a broad range of biological activities. However, no direct target of elaiophylin in eukaryotes has been described so far, which hinders a systematic explanation of its astonishing activity range. We recently showed that the related conglobatin A, a protein–protein interface inhibitor of the interaction between the N-terminus of Hsp90 and its cochaperone Cdc37, blocks cancer stem cell properties by selectively inhibiting K-Ras4B but not H-Ras. Here, we elaborated that elaiophylin likewise disrupts the Hsp90/ Cdc37 interaction, without affecting the ATP-pocket of Hsp90. Similarly to conglobatin A, elaiophylin decreased expression levels of the Hsp90 client HIF1α, a transcription factor with various downstream targets, including galectin-3. Galectin-3 is a nanocluster scaffold of K-Ras, which explains the K-Ras selectivity of Hsp90 inhibitors. In agreement with this K-Ras targeting and the potent effect on other Hsp90 clients, we observed with elaiophylin treatment a submicromolar IC50 for MDA-MB-231 and MIA-PaCa-2 3D spheroid formation. Finally, a strong inhibition of MDA-MB-231 cells grown in the chorioallantoic membrane (CAM) microtumor model was determined. These results suggest that several other macrodiolides may have the Hsp90/ Cdc37 interface as a target site.
Collapse
|
12
|
Marunouchi T, Nishiumi C, Iinuma S, Yano E, Tanonaka K. Effects of Hsp90 inhibitor on the RIP1-RIP3-MLKL pathway during the development of heart failure in mice. Eur J Pharmacol 2021; 898:173987. [PMID: 33640405 DOI: 10.1016/j.ejphar.2021.173987] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 02/18/2021] [Accepted: 02/23/2021] [Indexed: 12/17/2022]
Abstract
Necroptosis is a programmed form of necrotic cell death. Necroptosis is regulated by the necroptosis-regulating proteins including receptor-interacting protein (RIP) 1, RIP3, and mixed lineage kinase domain-like (MLKL), the activities of which are modulated by the molecular chaperone heat-shock protein (Hsp) 90. Presently, to clarify the relationship between Hsp90 and necroptotic pathway proteins, RIP1, RIP3, and MLKL in the development of heart failure, we examined the effects of Hsp90 inhibitor treatment on the RIP1-RIP3-MLKL pathway in mice following transverse aortic constriction (TAC). In this study, TAC mice showed typical signs of heart failure at the 8th week after the operation. In the failing heart, the levels of these regulatory proteins and those of their phosphorylated forms were increased, suggesting that necroptosis contributed to the development of heart failure in the TAC mice. The increases in RIP1, RIP3, and MLKL after TAC were reversed by the administration of an Hsp90 inhibitor. Furthermore, the rise in the phosphorylation levels of these 3 proteins were attenuated by the Hsp90 inhibitor. Concomitantly, cardiac functions were preserved. We also found that exposure of cultured adult mouse cardiomyocytes to the Hsp90 inhibitor attenuated necrotic cell death induced by tumor necrosis factor-α via suppression of RIP1, RIP3, and MLKL activation in in vitro experiments. Taken together, our findings suggest that inhibition of Hsp90 should have therapeutic effects by reducing the activation of RIP1-RIP3-MLKL pathway in the hypertrophied heart and thus could be a new therapeutic strategy for chronic heart failure.
Collapse
Affiliation(s)
- Tetsuro Marunouchi
- Department of Molecular and Cellular Pharmacology, Tokyo University of Pharmacy and Life Sciences, Japan
| | - Chiharu Nishiumi
- Department of Molecular and Cellular Pharmacology, Tokyo University of Pharmacy and Life Sciences, Japan
| | - Saki Iinuma
- Department of Molecular and Cellular Pharmacology, Tokyo University of Pharmacy and Life Sciences, Japan
| | - Emi Yano
- Department of Molecular and Cellular Pharmacology, Tokyo University of Pharmacy and Life Sciences, Japan
| | - Kouichi Tanonaka
- Department of Molecular and Cellular Pharmacology, Tokyo University of Pharmacy and Life Sciences, Japan.
| |
Collapse
|
13
|
Zhou H, Liu L, Ma X, Wang J, Yang J, Zhou X, Yang Y, Liu H. RIP1/RIP3/MLKL-mediated necroptosis contributes to vinblastine-induced myocardial damage. Mol Cell Biochem 2021; 476:1233-1243. [PMID: 33247805 PMCID: PMC7873015 DOI: 10.1007/s11010-020-03985-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 11/16/2020] [Indexed: 02/07/2023]
Abstract
Vinblastine (VBL) has been considered as a first-line anti-tumor drug for many years. However, vinblastine-caused myocardial damage has been continually reported. The underlying molecular mechanism of the myocardial damage remains unknown. Here, we show that vinblastine induces myocardial damage and necroptosis is involved in the vinblastine-induced myocardial damage both in vitro and in vivo. The results of WST-8 and flow cytometry analysis show that vinblastine causes damage to H9c2 cells, and the results of animal experiments show that vinblastine causes myocardial cell damage. The necrosome components, receptor-interacting protein 1 (RIP1) receptor-interacting protein 3 (RIP3), are significantly increased in vinblastine-treated H9c2 cells, primary neonatal rat ventricular myocytes and rat heart tissues. And the downstream substrate of RIP3, mixed lineage kinase domain like protein (MLKL) was also increased. Pre-treatment with necroptosis inhibitors partially inhibits the necrosome components and MLKL levels and alleviates vinblastine-induced myocardial injury both in vitro and in vivo. This study indicates that necroptosis participated in vinblastine-evoked myocardial cell death partially, which would be a potential target for relieving the chemotherapy-related myocardial damage.
Collapse
Affiliation(s)
- Huiling Zhou
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
- Clinical Center for Gene Diagnosis and Therapy, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Lijun Liu
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
- Clinical Center for Gene Diagnosis and Therapy, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Xiaolong Ma
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Jian Wang
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
- Clinical Center for Gene Diagnosis and Therapy, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Jinfu Yang
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
- Clinical Center for Gene Diagnosis and Therapy, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Xinmin Zhou
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Yifeng Yang
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Haidan Liu
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China.
- Clinical Center for Gene Diagnosis and Therapy, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China.
| |
Collapse
|
14
|
Ma W, Wei S, Zhang B, Li W. Molecular Mechanisms of Cardiomyocyte Death in Drug-Induced Cardiotoxicity. Front Cell Dev Biol 2020; 8:434. [PMID: 32582710 PMCID: PMC7283551 DOI: 10.3389/fcell.2020.00434] [Citation(s) in RCA: 84] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Accepted: 05/08/2020] [Indexed: 01/08/2023] Open
Abstract
Homeostatic regulation of cardiomyocytes plays a crucial role in maintaining the normal physiological activity of cardiac tissue. Severe cardiotoxicity results in cardiac diseases including but not limited to arrhythmia, myocardial infarction and myocardial hypertrophy. Drug-induced cardiotoxicity limits or forbids further use of the implicated drugs. Such drugs that are currently available in the clinic include anti-tumor drugs (doxorubicin, cisplatin, trastuzumab, etc.), antidiabetic drugs (rosiglitazone and pioglitazone), and an antiviral drug (zidovudine). This review focused on cardiomyocyte death forms and related mechanisms underlying clinical drug-induced cardiotoxicity, including apoptosis, autophagy, necrosis, necroptosis, pryoptosis, and ferroptosis. The key proteins involved in cardiomyocyte death signaling were discussed and evaluated, aiming to provide a theoretical basis and target for the prevention and treatment of drug-induced cardiotoxicity in the clinical practice.
Collapse
Affiliation(s)
- Wanjun Ma
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, China.,Institute of Clinical Pharmacy, Central South University, Changsha, China
| | - Shanshan Wei
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, China.,Institute of Clinical Pharmacy, Central South University, Changsha, China
| | - Bikui Zhang
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, China.,Institute of Clinical Pharmacy, Central South University, Changsha, China
| | - Wenqun Li
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, China.,Institute of Clinical Pharmacy, Central South University, Changsha, China
| |
Collapse
|
15
|
Synergistic Anti Leukemia Effect of a Novel Hsp90 and a Pan Cyclin Dependent Kinase Inhibitors. Molecules 2020; 25:molecules25092220. [PMID: 32397330 PMCID: PMC7248782 DOI: 10.3390/molecules25092220] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 04/29/2020] [Accepted: 05/05/2020] [Indexed: 12/12/2022] Open
Abstract
Acute myeloid leukemia (AML) is among the top four malignancies in Saudi nationals, and it is the top leukemia subtype worldwide. Resistance to available AML drugs requires the identification of new targets and agents. Hsp90 is one of the emerging important targets in AML, which has a central role in the regulation of apoptosis and cell proliferation through client proteins including the growth factor receptors and cyclin dependent kinases. The objective of the first part of this study is to investigate the putative Hsp90 inhibition activity of three novel previously synthesized quinazolines, which showed HL60 cytotoxicity and VEGFR2 and EGFR kinases inhibition activities. Using surface plasmon resonance, compound 1 (HAA2020) showed better Hsp90 inhibition compared to 17-AAG, and a docking study revealed that it fits nicely into the ATPase site. The objective of the second part is to maximize the anti-leukemic activity of HAA2020, which was combined with each of the eleven standard inhibitors. The best resulting synergistic effect in HL60 cells was with the pan cyclin-dependent kinases (CDK) inhibitor dinaciclib, using an MTT assay. Furthermore, the inhibiting effect of the Hsp90α gene by the combination of HAA2020 and dinaciclib was associated with increased caspase-7 and TNF-α, leading to apoptosis in HL60 cells. In addition, the combination upregulated p27 simultaneously with the inhibition of cyclinD3 and CDK2, leading to abolished HL60 proliferation and survival. The actions of HAA2020 propagated the apoptotic and cell cycle control properties of dinaciclib, showing the importance of co-targeting Hsp90 and CDK, which could lead to the better management of leukemia.
Collapse
|
16
|
Vila C, Dharmaraj NR, Faubel A, Blay G, Cardona ML, Muñoz MC, Pedro JR. Regio-, Diastereo-, and Enantioselective Organocatalytic Addition of 4-Substituted Pyrazolones to Isatin-Derived Nitroalkenes. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900328] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Carlos Vila
- Departament de Química Orgànica; Facultat de Química; Universitat de València; Dr. Moliner 50 46100 Burjassot València Spain
| | - Nisshanth Raj Dharmaraj
- Departament de Química Orgànica; Facultat de Química; Universitat de València; Dr. Moliner 50 46100 Burjassot València Spain
| | - Antonio Faubel
- Departament de Química Orgànica; Facultat de Química; Universitat de València; Dr. Moliner 50 46100 Burjassot València Spain
| | - Gonzalo Blay
- Departament de Química Orgànica; Facultat de Química; Universitat de València; Dr. Moliner 50 46100 Burjassot València Spain
| | - M. Luz Cardona
- Departament de Química Orgànica; Facultat de Química; Universitat de València; Dr. Moliner 50 46100 Burjassot València Spain
| | - M. Carmen Muñoz
- Departament de Física Aplicada; Universitat Politècnica de València; Camino de Vera s/n 46022 València Spain
| | - José R. Pedro
- Departament de Química Orgànica; Facultat de Química; Universitat de València; Dr. Moliner 50 46100 Burjassot València Spain
| |
Collapse
|
17
|
Pinheiro EA, Fetterman KA, Burridge PW. hiPSCs in cardio-oncology: deciphering the genomics. Cardiovasc Res 2019; 115:935-948. [PMID: 30689737 PMCID: PMC6452310 DOI: 10.1093/cvr/cvz018] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 12/11/2018] [Accepted: 01/21/2019] [Indexed: 12/18/2022] Open
Abstract
The genomic predisposition to oncology-drug-induced cardiovascular toxicity has been postulated for many decades. Only recently has it become possible to experimentally validate this hypothesis via the use of patient-specific human-induced pluripotent stem cells (hiPSCs) and suitably powered genome-wide association studies (GWAS). Identifying the individual single nucleotide polymorphisms (SNPs) responsible for the susceptibility to toxicity from a specific drug is a daunting task as this precludes the use of one of the most powerful tools in genomics: comparing phenotypes to close relatives, as these are highly unlikely to have been treated with the same drug. Great strides have been made through the use of candidate gene association studies (CGAS) and increasingly large GWAS studies, as well as in vivo whole-organism studies to further our mechanistic understanding of this toxicity. The hiPSC model is a powerful technology to build on this work and identify and validate causal variants in mechanistic pathways through directed genomic editing such as CRISPR. The causative variants identified through these studies can then be implemented clinically to identify those likely to experience cardiovascular toxicity and guide treatment options. Additionally, targets identified through hiPSC studies can inform future drug development. Through careful phenotypic characterization, identification of genomic variants that contribute to gene function and expression, and genomic editing to verify mechanistic pathways, hiPSC technology is a critical tool for drug discovery and the realization of precision medicine in cardio-oncology.
Collapse
Affiliation(s)
- Emily A Pinheiro
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- Center for Pharmacogenomics, Northwestern University Feinberg School of Medicine, Searle 8-525, 320 East Superior Street, Chicago, IL, USA
| | - K Ashley Fetterman
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- Center for Pharmacogenomics, Northwestern University Feinberg School of Medicine, Searle 8-525, 320 East Superior Street, Chicago, IL, USA
| | - Paul W Burridge
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- Center for Pharmacogenomics, Northwestern University Feinberg School of Medicine, Searle 8-525, 320 East Superior Street, Chicago, IL, USA
| |
Collapse
|
18
|
Yao H, Xu F, Wang G, Xie S, Li W, Yao H, Ma C, Zhu Z, Xu J, Xu S. Design, synthesis, and biological evaluation of truncated deguelin derivatives as Hsp90 inhibitors. Eur J Med Chem 2019; 167:485-498. [DOI: 10.1016/j.ejmech.2019.02.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 01/24/2019] [Accepted: 02/04/2019] [Indexed: 12/12/2022]
|
19
|
Vila C, Slack S, Blay G, Muñoz MC, Pedro JR. Regio‐ and Stereoselective Synthesis of 3‐Pyrazolylidene‐2‐oxindole Compounds by Nucleophilic Vinylic Substitution of (
E
)‐3‐(Nitromethylene)indolin‐2‐one. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900048] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Carlos Vila
- Departament de Química Orgànica, Facultat de QuímicaUniversitat de València Dr. Moliner 50 46100 Burjassot València Spain
| | - Sophie Slack
- Departament de Química Orgànica, Facultat de QuímicaUniversitat de València Dr. Moliner 50 46100 Burjassot València Spain
| | - Gonzalo Blay
- Departament de Química Orgànica, Facultat de QuímicaUniversitat de València Dr. Moliner 50 46100 Burjassot València Spain
| | - M. Carmen Muñoz
- Departament de Física AplicadaUniversitat Politècnica de València Camino de Vera s/n 46022 València Spain
| | - José R. Pedro
- Departament de Química Orgànica, Facultat de QuímicaUniversitat de València Dr. Moliner 50 46100 Burjassot València Spain
| |
Collapse
|
20
|
Regulation of the Tumor-Suppressor BECLIN 1 by Distinct Ubiquitination Cascades. Int J Mol Sci 2017; 18:ijms18122541. [PMID: 29186924 PMCID: PMC5751144 DOI: 10.3390/ijms18122541] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 11/22/2017] [Accepted: 11/24/2017] [Indexed: 12/23/2022] Open
Abstract
Autophagy contributes to cellular homeostasis through the degradation of various intracellular targets such as proteins, organelles and microbes. This relates autophagy to various diseases such as infections, neurodegenerative diseases and cancer. A central component of the autophagy machinery is the class III phosphatidylinositol 3-kinase (PI3K-III) complex, which generates the signaling lipid phosphatidylinositol 3-phosphate (PtdIns3P). The catalytic subunit of this complex is the lipid-kinase VPS34, which associates with the membrane-targeting factor VPS15 as well as the multivalent adaptor protein BECLIN 1. A growing list of regulatory proteins binds to BECLIN 1 and modulates the activity of the PI3K-III complex. Here we discuss the regulation of BECLIN 1 by several different types of ubiquitination, resulting in distinct polyubiquitin chain linkages catalyzed by a set of E3 ligases. This contribution is part of the Special Issue “Ubiquitin System”.
Collapse
|
21
|
Tu Z, Tan J, Chen Z, Tu T. Iridium-Catalyzed Regio- and Stereoselective C-H Oxidative Reaction to (Z
)-3-Arylidene-2-oxindole Imides under Neutral Conditions. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700983] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Zhikai Tu
- Key Laboratory of Functional Small Organic Molecules; Ministry of Education, and College of Chemistry & Chemical Engineering; Jiangxi Normal University; Nanchang Jiangxi 330022 People's Republic of China
| | - Jie Tan
- Key Laboratory of Functional Small Organic Molecules; Ministry of Education, and College of Chemistry & Chemical Engineering; Jiangxi Normal University; Nanchang Jiangxi 330022 People's Republic of China
| | - Zhiyuan Chen
- Key Laboratory of Functional Small Organic Molecules; Ministry of Education, and College of Chemistry & Chemical Engineering; Jiangxi Normal University; Nanchang Jiangxi 330022 People's Republic of China
| | - Tao Tu
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials; Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 People's Republic of China
| |
Collapse
|