1
|
Wohlfromm F, Ivanisenko NV, Pietkiewicz S, König C, Seyrek K, Kähne T, Lavrik IN. Arginine methylation of caspase-8 controls life/death decisions in extrinsic apoptotic networks. Oncogene 2024; 43:1955-1971. [PMID: 38730267 PMCID: PMC11178496 DOI: 10.1038/s41388-024-03049-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 03/26/2024] [Accepted: 04/23/2024] [Indexed: 05/12/2024]
Abstract
Procaspase-8 is a key mediator of death receptor (DR)-mediated pathways. Recently, the role of post-translational modifications (PTMs) of procaspase-8 in controlling cell death has received increasing attention. Here, using mass spectrometry screening, pharmacological inhibition and biochemical assays, we show that procaspase-8 can be targeted by the PRMT5/RIOK1/WD45 methylosome complex. Furthermore, two potential methylation sites of PRMT5 on procaspase-8, R233 and R435, were identified in silico. R233 and R435 are highly conserved in mammals and their point mutations are among the most common mutations of caspase-8 in cancer. The introduction of mutations at these positions resulted in inhibitory effects on CD95L-induced caspase-8 activity, effector caspase activation and apoptosis. In addition, we show that procaspase-8 can undergo symmetric di-methylation. Finally, the pharmacological inhibition of PRMT5 resulted in the inhibitory effects on caspase activity and apoptotic cell death. Taken together, we have unraveled the additional control checkpoint in procaspase-8 activation and the arginine methylation network in the extrinsic apoptosis pathway.
Collapse
Affiliation(s)
- Fabian Wohlfromm
- Translational Inflammation Research, Medical Faculty, Center of Dynamic Systems (CDS), Otto von Guericke University, 39106, Magdeburg, Germany
| | - Nikita V Ivanisenko
- Translational Inflammation Research, Medical Faculty, Center of Dynamic Systems (CDS), Otto von Guericke University, 39106, Magdeburg, Germany
| | - Sabine Pietkiewicz
- Translational Inflammation Research, Medical Faculty, Center of Dynamic Systems (CDS), Otto von Guericke University, 39106, Magdeburg, Germany
| | - Corinna König
- Translational Inflammation Research, Medical Faculty, Center of Dynamic Systems (CDS), Otto von Guericke University, 39106, Magdeburg, Germany
| | - Kamil Seyrek
- Translational Inflammation Research, Medical Faculty, Center of Dynamic Systems (CDS), Otto von Guericke University, 39106, Magdeburg, Germany
| | - Thilo Kähne
- Institute of Experimental Internal Medicine, Medical Faculty, Otto von Guericke University, 39120, Magdeburg, Germany
| | - Inna N Lavrik
- Translational Inflammation Research, Medical Faculty, Center of Dynamic Systems (CDS), Otto von Guericke University, 39106, Magdeburg, Germany.
| |
Collapse
|
2
|
Wolf P. Inhibitor of apoptosis proteins as therapeutic targets in bladder cancer. Front Oncol 2023; 13:1124600. [PMID: 36845731 PMCID: PMC9950391 DOI: 10.3389/fonc.2023.1124600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 01/19/2023] [Indexed: 02/12/2023] Open
Abstract
Evasion from apoptosis is a hallmark of cancer. Inhibitor of apoptosis proteins (IAPs) contribute to this hallmark by suppressing the induction of cell death. IAPs were found to be overexpressed in cancerous tissues and to contribute to therapeutic resistance. The present review focuses on the IAP members cIAP1, cIAP2, XIAP, Survivin and Livin and their importance as potential therapeutic targets in bladder cancer.
Collapse
Affiliation(s)
- Philipp Wolf
- Department of Urology, Medical Center-University of Freiburg, Freiburg, Germany,Faculty of Medicine, University of Freiburg, Freiburg, Germany,*Correspondence: Philipp Wolf,
| |
Collapse
|
3
|
Li Q, Zhang W. Progress in Anticancer Drug Development Targeting Ubiquitination-Related Factors. Int J Mol Sci 2022; 23:ijms232315104. [PMID: 36499442 PMCID: PMC9737479 DOI: 10.3390/ijms232315104] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/24/2022] [Accepted: 10/26/2022] [Indexed: 12/05/2022] Open
Abstract
Ubiquitination is extensively involved in critical signaling pathways through monitoring protein stability, subcellular localization, and activity. Dysregulation of this process results in severe diseases including malignant cancers. To develop drugs targeting ubiquitination-related factors is a hotspot in research to realize better therapy of human diseases. Ubiquitination comprises three successive reactions mediated by Ub-activating enzyme E1, Ub-conjugating enzyme E2, and Ub ligase E3. As expected, multiple ubiquitination enzymes have been highlighted as targets for anticancer drug development due to their dominant effect on tumorigenesis and cancer progression. In this review, we discuss recent progresses in anticancer drug development targeting enzymatic machinery components.
Collapse
|
4
|
Zhang Z, Xiang S, Cui R, Peng H, Mridul R, Xiang M. ILP-2: A New Bane and Therapeutic Target for Human Cancers. Front Oncol 2022; 12:922596. [PMID: 35814477 PMCID: PMC9260022 DOI: 10.3389/fonc.2022.922596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 05/26/2022] [Indexed: 12/24/2022] Open
Abstract
Inhibitor of apoptosis protein-related-like protein-2 (ILP-2), also known as BIRC-8, is a member of the inhibitor of apoptosis protein (IAPs) family, which mainly encodes the negative regulator of apoptosis. It is selectively overexpressed in a variety of human tumors and can help tumor cells evade apoptosis, promote tumor cell growth, increase tumor cell aggressiveness, and appears to be involved in tumor cell resistance to chemotherapeutic drugs. Several studies have shown that downregulation of ILP-2 expression increases apoptosis, inhibits metastasis, reduces cell growth potential, and sensitizes tumor cells to chemotherapeutic drugs. In addition, ILP-2 inhibits apoptosis in a unique manner; it does not directly inhibit the activity of caspases but induces apoptosis by cooperating with other apoptosis-related proteins. Here, we review the current understanding of the various roles of ILP-2 in the apoptotic cascade and explore the use of interfering ILP-2, and the combination of related anti-tumor agents, as a novel strategy for cancer therapy.
Collapse
Affiliation(s)
- Zhiliang Zhang
- Department of Biochemistry and Immunology, Medical Research Center, Institute of Medicine, Jishou University, Jishou, China
- The State Ethnic Committee's Key Laboratory of Clinical Engineering Laboratory of Xiangxi Miao Pediatric Tuina, Jishou University, Jishou, China
| | - Siqi Xiang
- Department of Biochemistry and Immunology, Medical Research Center, Institute of Medicine, Jishou University, Jishou, China
- The State Ethnic Committee's Key Laboratory of Clinical Engineering Laboratory of Xiangxi Miao Pediatric Tuina, Jishou University, Jishou, China
| | - Ruxia Cui
- Department of Biochemistry and Immunology, Medical Research Center, Institute of Medicine, Jishou University, Jishou, China
- The State Ethnic Committee's Key Laboratory of Clinical Engineering Laboratory of Xiangxi Miao Pediatric Tuina, Jishou University, Jishou, China
| | - Hang Peng
- Department of Biochemistry and Immunology, Medical Research Center, Institute of Medicine, Jishou University, Jishou, China
- The State Ethnic Committee's Key Laboratory of Clinical Engineering Laboratory of Xiangxi Miao Pediatric Tuina, Jishou University, Jishou, China
| | - Roy Mridul
- Department of Biochemistry and Immunology, Medical Research Center, Institute of Medicine, Jishou University, Jishou, China
- The State Ethnic Committee's Key Laboratory of Clinical Engineering Laboratory of Xiangxi Miao Pediatric Tuina, Jishou University, Jishou, China
| | - Mingjun Xiang
- Department of Biochemistry and Immunology, Medical Research Center, Institute of Medicine, Jishou University, Jishou, China
- The State Ethnic Committee's Key Laboratory of Clinical Engineering Laboratory of Xiangxi Miao Pediatric Tuina, Jishou University, Jishou, China
| |
Collapse
|
5
|
Kulbay M, Paimboeuf A, Ozdemir D, Bernier J. Review of cancer cell resistance mechanisms to apoptosis and actual targeted therapies. J Cell Biochem 2021; 123:1736-1761. [PMID: 34791699 DOI: 10.1002/jcb.30173] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 10/04/2021] [Accepted: 10/22/2021] [Indexed: 11/11/2022]
Abstract
The apoptosis pathway is a programmed cell death mechanism that is crucial for cellular and tissue homeostasis and organ development. There are three major caspase-dependent pathways of apoptosis that ultimately lead to DNA fragmentation. Cancerous cells are known to highly regulate the apoptotic pathway and its role in cancer hallmark acquisition has been discussed over the past decades. Numerous mutations in cancer cell types have been reported to be implicated in chemoresistance and treatment outcome. In this review, we summarize the mutations of the caspase-dependant apoptotic pathways that are the source of cancer development and the targeted therapies currently available or in trial.
Collapse
Affiliation(s)
- Merve Kulbay
- INRS - Centre Armand-Frappier Santé Biotechnologie, Laval, Quebec, Canada.,Department of Medicine, Université de Montréal, Montréal, Quebec, Canada
| | - Adeline Paimboeuf
- INRS - Centre Armand-Frappier Santé Biotechnologie, Laval, Quebec, Canada
| | - Derman Ozdemir
- Department of Medicine, One Brooklyn Health-Brookdale Hospital Medical Center, Brooklyn, New York, USA
| | - Jacques Bernier
- INRS - Centre Armand-Frappier Santé Biotechnologie, Laval, Quebec, Canada
| |
Collapse
|
6
|
Seyrek K, Ivanisenko NV, Richter M, Hillert LK, König C, Lavrik IN. Controlling Cell Death through Post-translational Modifications of DED Proteins. Trends Cell Biol 2020; 30:354-369. [PMID: 32302548 DOI: 10.1016/j.tcb.2020.02.006] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 02/12/2020] [Accepted: 02/19/2020] [Indexed: 01/15/2023]
Abstract
Apoptosis is a form of programmed cell death, deregulation of which occurs in multiple disorders, including neurodegenerative and autoimmune diseases as well as cancer. The formation of a death-inducing signaling complex (DISC) and death effector domain (DED) filaments are critical for initiation of the extrinsic apoptotic pathway. Post-translational modifications (PTMs) of DED-containing DISC components such as FADD, procaspase-8, and c-FLIP comprise an additional level of apoptosis regulation, which is necessary to overcome the threshold for apoptosis induction. In this review we discuss the influence of PTMs of FADD, procaspase-8, and c-FLIP on DED filament assembly and cell death induction, with a focus on the 3D organization of the DED filament.
Collapse
Affiliation(s)
- Kamil Seyrek
- Translational Inflammation Research, Medical Faculty, Otto von Guericke University, Magdeburg, Germany
| | - Nikita V Ivanisenko
- The Federal Research Center Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia; Novosibirsk State University, Novosibirsk, Russia
| | - Max Richter
- Translational Inflammation Research, Medical Faculty, Otto von Guericke University, Magdeburg, Germany
| | - Laura K Hillert
- Translational Inflammation Research, Medical Faculty, Otto von Guericke University, Magdeburg, Germany
| | - Corinna König
- Translational Inflammation Research, Medical Faculty, Otto von Guericke University, Magdeburg, Germany
| | - Inna N Lavrik
- Translational Inflammation Research, Medical Faculty, Otto von Guericke University, Magdeburg, Germany; The Federal Research Center Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia.
| |
Collapse
|
7
|
Soubéran A, Cappaï J, Chocry M, Nuccio C, Raujol J, Colin C, Lafitte D, Kovacic H, Quillien V, Baeza-Kallee N, Rougon G, Figarella-Branger D, Tchoghandjian A. Inhibitor of Apoptosis Proteins Determines Glioblastoma Stem-Like Cell Fate in an Oxygen-Dependent Manner. Stem Cells 2019; 37:731-742. [PMID: 30920104 DOI: 10.1002/stem.2997] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 01/18/2019] [Accepted: 02/11/2019] [Indexed: 12/12/2022]
Abstract
In glioblastomas, apoptosis inhibitor proteins (IAPs) are involved in apoptotic and nonapoptotic processes. We previously showed that IAP inhibition induced a loss of stemness and glioblastoma stem cells differentiation by activating nuclear factor-κB under normoxic conditions. Hypoxia has been shown to modulate drug efficacy. Here, we investigated how IAPs participate in glioblastoma stem-like cell maintenance and fate under hypoxia. We showed that in a hypoxic environment, IAPs inhibition by GDC-0152, a small-molecule IAPs inhibitor, triggered stem-like cell apoptosis and decreased proliferation in four human glioblastoma cell lines. We set up a three-dimensional glioblastoma spheroid model in which time-of-flight secondary ion mass spectrometry analyses revealed a decrease in oxygen levels between the periphery and core. We observed low proliferative and apoptotic cells located close to the hypoxic core of the spheres and glial fibrillary acidic protein+ cells at their periphery. These oxygen-dependent GDC-0152 antitumoral effects have been confirmed on human glioblastoma explants. Notably, serine-threonine kinase activation analysis revealed that under hypoxic conditions, IAP inhibition activated ataxia telangiectasia and Rad3-related protein signaling. Our findings provide new insights into the dual mechanism of action of IAP inhibitors that depends on oxygen level and are relevant to their therapeutic application in tumors. Stem Cells 2019;37:731-742.
Collapse
Affiliation(s)
- Aurélie Soubéran
- Aix-Marseille University, CNRS, INP, Institute of NeuroPhysiopathology, Marseille, France
| | - Jessica Cappaï
- Aix-Marseille University, CNRS, INP, Institute of NeuroPhysiopathology, Marseille, France
| | - Mathieu Chocry
- Aix-Marseille University, CNRS, INP, Institute of NeuroPhysiopathology, Marseille, France
| | | | | | - Carole Colin
- Aix-Marseille University, CNRS, INP, Institute of NeuroPhysiopathology, Marseille, France
| | - Daniel Lafitte
- Aix-Marseille University, INSERM UMR MD1, Marseille, France
| | - Hervé Kovacic
- Aix-Marseille University, CNRS, INP, Institute of NeuroPhysiopathology, Marseille, France
| | - Véronique Quillien
- Rennes 1 University, "Chemistry, Oncogenesis, Stress, Signaling", INSERM U1242, Rennes, France.,Centre de lutte contre le cancer Eugène Marquis, Rennes F-35042, France
| | - Nathalie Baeza-Kallee
- Aix-Marseille University, CNRS, INP, Institute of NeuroPhysiopathology, Marseille, France
| | - Geneviève Rougon
- Aix-Marseille University, Institut de Neurosciences Timone, CNRS 7289, Marseille, France
| | - Dominique Figarella-Branger
- Aix-Marseille University, CNRS, INP, Institute of NeuroPhysiopathology, Marseille, France.,AP-HM, Timone Hospital, Department of Anatomopathology, Marseille, France
| | - Aurélie Tchoghandjian
- Aix-Marseille University, CNRS, INP, Institute of NeuroPhysiopathology, Marseille, France
| |
Collapse
|
8
|
Kessens R, Sorensen N, Kabbage M. An inhibitor of apoptosis (SfIAP) interacts with SQUAMOSA promoter-binding protein (SBP) transcription factors that exhibit pro-cell death characteristics. PLANT DIRECT 2018; 2:e00081. [PMID: 31245745 PMCID: PMC6508781 DOI: 10.1002/pld3.81] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Revised: 06/07/2018] [Accepted: 07/18/2018] [Indexed: 06/09/2023]
Abstract
Despite the importance of proper cell death regulation across broad evolutionary distances, an understanding of the molecular machinery underpinning this fundamental process in plants remains largely elusive. This is despite its critical importance to development, homeostasis, and proper responses to stress. The identification of endogenous plant regulators of cell death has been hindered by the fact that many core regulators of cell death in animals are absent in plant genomes. Remarkably, numerous studies have shown that the ectopic expression of animal prosurvival genes in plants can suppress cell death imposed by many stresses. In this study, we capitalize on the ectopic expression of one of these animal prosurvival genes, an inhibitor of apoptosis from Spodoptera frugiperda (SfIAP), to identify novel cell death regulators in plants. A yeast two-hybrid assay was conducted using SfIAP as bait to screen a tomato cDNA library. This screen identified several transcription factors of the SQUAMOSA promoter-binding protein (SBP) family as potential SfIAP binding partners. We confirmed this interaction in vivo for our top two interactors, SlySBP8b and SlySBP12a, using coimmunoprecipitation. Interestingly, overexpression of SlySBP8b and SlySBP12a induced cell death in Nicotiana benthamiana leaves. Overexpression of these two transcription factors also induced the accumulation of reactive oxygen species and enhanced the growth of the necrotrophic pathogen Alternaria alternata. Fluorescence microscopy confirmed the nuclear localization of both SlySBP8b and SlySBP12a, while SlySBP12a was also localized to the ER membrane. These results suggest a prodeath role for SlySBP8b and SlySBP12a and implicate ER membrane tethering as a means of regulating SlySBP12a activity.
Collapse
Affiliation(s)
- Ryan Kessens
- Department of Plant PathologyUniversity of Wisconsin‐MadisonMadisonWisconsin
| | - Nick Sorensen
- Department of Plant PathologyUniversity of Wisconsin‐MadisonMadisonWisconsin
| | - Mehdi Kabbage
- Department of Plant PathologyUniversity of Wisconsin‐MadisonMadisonWisconsin
| |
Collapse
|
9
|
Tulli L, Cattaneo F, Vinot J, Baldari CT, D'Oro U. Src Family Kinases Regulate Interferon Regulatory Factor 1 K63 Ubiquitination following Activation by TLR7/8 Vaccine Adjuvant in Human Monocytes and B Cells. Front Immunol 2018; 9:330. [PMID: 29545793 PMCID: PMC5837968 DOI: 10.3389/fimmu.2018.00330] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Accepted: 02/06/2018] [Indexed: 12/27/2022] Open
Abstract
Toll-like receptors (TLRs) play a key role in the activation of innate immune cells, in which their engagement leads to production of cytokines and co-stimulatory molecules. TLRs signaling requires recruitment of toll/IL-1R (TIR) domain-containing adaptors, such as MyD88 and/or TRIF, and leads to activation of several transcription factors, such as NF-κB, the AP1 complex, and various members of the interferon regulatory factor (IRF) family, which in turn results in triggering of several cellular functions associated with these receptors. A role for Src family kinases (SFKs) in this signaling pathway has also been established. Our work and that of others have shown that this type of kinases is activated following engagement of several TLRs, and that this event is essential for the initiation of specific downstream cellular response. In particular, we have previously demonstrated that activation of SFKs is required for balanced production of pro-inflammatory cytokines by monocyte-derived dendritic cells after stimulation with R848, an agonist of human TLRs 7/8. We also showed that TLR7/8 triggering leads to an increase in interferon regulatory factor 1 (IRF-1) protein levels and that this effect is abolished by inhibition of SFKs, suggesting a critical role of these kinases in IRF-1 regulation. In this study, we first confirmed the key role of SFKs in TLR7/8 signaling for cytokine production and accumulation of IRF-1 protein in monocytes and in B lymphocytes, two other type of antigen-presenting cells. Then, we demonstrate that TLR7 triggering leads to an increase of K63-linked ubiquitination of IRF-1, which is prevented by SFKs inhibition, suggesting a key role of these kinases in posttranslational regulation of IRF-1 in the immune cells. In order to understand the mechanism that links SFKs activation to IRF-1 K63-linked ubiquitination, we examined SFKs and IRF-1 possible interactors and proved that activation of SFKs is necessary for their interaction with TNFR-associated factor 6 (TRAF6) and promotes the recruitment of both cIAP2 and IRF-1 by TRAF6. Collectively, our data demonstrate that TLR7/8 engagement leads to the formation of a complex that allows the interaction of cIAP2 and IRF-1 resulting in IRF-1 K63-linked ubiquitination, and that active SFKs are required for this process.
Collapse
|
10
|
Zhu QH, Zhou ZK, Tu DD, Zhou YL, Wang C, Liu ZP, Gu WB, Chen YY, Shu MA. Effect of cadmium exposure on hepatopancreas and gills of the estuary mud crab (Scylla paramamosain): Histopathological changes and expression characterization of stress response genes. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2018; 195:1-7. [PMID: 29197714 DOI: 10.1016/j.aquatox.2017.11.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 11/24/2017] [Accepted: 11/28/2017] [Indexed: 06/07/2023]
Abstract
Cadmium (Cd) is a heavy metal that accumulates easily in organisms and causes several detrimental effects, including tissue damage. Cd contamination from anthropogenic terrestrial sources flows into rivers, and through estuaries to the ocean. To evaluate the toxic effects of Cd on estuary crustaceans, we exposed the mud crab Scylla paramamosain to various Cd concentrations (0, 10.0, 20.0, and 40.0mg/L) for 24h. We also exposed mud crabs to a fixed Cd concentration (20.0mg/L) for various periods of time (0, 6, 12, 24, 48, and 72h). We observed that after exposure to Cd, the surfaces of the gill lamellae were wrinkled, and the morphologies of the nuclei and mitochondria in the hepatopancreas were altered. We analyzed the expression profiles of 36 stress-related genes after Cd exposure, including those encoding metallothioneins, heat shock proteins, apoptosis-related proteins, and antioxidant proteins, with quantitative reverse transcription PCR. We found that exposure to Cd altered gene expression, and that some genes might be suitable bioindicators of Cd stress. Gene expression profiles were organ-, duration-, and concentration-dependent, suggesting that stress-response genes might be involved in an innate defense system for handling heavy metal exposure. To the best of our knowledge, this study is the first one of histopathology and stress-response gene expression pattern of Scylla paramamosain after Cd exposure. Our work could increase our understanding of the effect of environmental toxins on estuary crustaceans.
Collapse
Affiliation(s)
- Qi-Hui Zhu
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Zhong-Kai Zhou
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Dan-Dan Tu
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Yi-Lian Zhou
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Cong Wang
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Ze-Peng Liu
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Wen-Bin Gu
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Yu-Yin Chen
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China.
| | - Miao-An Shu
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China.
| |
Collapse
|
11
|
Inhibitor of apoptosis protein expression in glioblastomas and their in vitro and in vivo targeting by SMAC mimetic GDC-0152. Cell Death Dis 2016; 7:e2325. [PMID: 27490930 PMCID: PMC5108315 DOI: 10.1038/cddis.2016.214] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 05/25/2016] [Accepted: 06/20/2016] [Indexed: 01/29/2023]
Abstract
Glioblastomas (GBMs) are the most aggressive primary brain tumors in adult and remain a therapeutic challenge. Targeting key apoptosis regulators with the ultimate aim to restore apoptosis in tumor cells could be an interesting therapeutic strategy. The inhibitors of apoptosis proteins (IAPs) are regulators of cell death and represent attractive targets, especially because they can be antagonized by SMAC mimetics. In this study, we first investigated the expression of cIAP1, cIAP2, XIAP and ML-IAP in human GBM samples and in four different cell lines. We showed that all GBM samples and GBM cell lines expressed all these IAPs, although the expression of each IAP varied from one case to another. We then showed that high level of ML-IAP predicted worse progression-free survival and overall survival in both univariate and multivariate analyses in two independent cohorts of 58 and 43 primary human GBMs. We then used GDC-0152, a SMAC mimetic that antagonizes these IAPs and confirmed that GDC-0152 treatment in vitro decreased IAPs in all the cell lines studied. It affected cell line viability and triggered apoptosis, although the effect was higher in U87MG and GL261 than in GBM6 and GBM9 cell lines. In vivo, GDC-0152 effect on U87MG orthotopic xenografts was dose dependent; it postponed tumor formation and slowed down tumor growth, significantly improving survival of GBM-bearing mice. This study revealed for the first time that ML-IAP protein expression correlates with GBM patient survival and that its antagonist GDC-0152 improves outcome in xenografted mouse.
Collapse
|
12
|
Anania VG, Lill JR. Proteomic tools for the characterization of cell death mechanisms in drug discovery. Proteomics Clin Appl 2015; 9:671-83. [DOI: 10.1002/prca.201400151] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Revised: 01/28/2015] [Accepted: 02/18/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Veronica G. Anania
- Department of Biomarker Development; Genentech, Inc; South San Francisco CA USA
| | - Jennie R. Lill
- Department of Protein Chemistry; Genentech, Inc. South San Francisco CA USA
| |
Collapse
|
13
|
Pedersen J, LaCasse EC, Seidelin JB, Coskun M, Nielsen OH. Inhibitors of apoptosis (IAPs) regulate intestinal immunity and inflammatory bowel disease (IBD) inflammation. Trends Mol Med 2014; 20:652-65. [PMID: 25282548 DOI: 10.1016/j.molmed.2014.09.006] [Citation(s) in RCA: 83] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 09/04/2014] [Accepted: 09/08/2014] [Indexed: 12/12/2022]
Abstract
The inhibitor of apoptosis (IAP) family members, notably cIAP1, cIAP2, and XIAP, are critical and universal regulators of tumor necrosis factor (TNF) mediated survival, inflammatory, and death signaling pathways. Furthermore, IAPs mediate the signaling of nucleotide-binding oligomerization domain (NOD)1/NOD2 and other intracellular NOD-like receptors in response to bacterial pathogens. These pathways are important to the pathogenesis and treatment of inflammatory bowel disease (IBD). Inactivating mutations in the X-chromosome-linked IAP (XIAP) gene causes an immunodeficiency syndrome, X-linked lymphoproliferative disease type 2 (XLP2), in which 20% of patients develop severe intestinal inflammation. In addition, 4% of males with early-onset IBD also have inactivating mutations in XIAP. Therefore, the IAPs play a greater role in gut homeostasis, immunity and IBD development than previously suspected, and may have therapeutic potential.
Collapse
Affiliation(s)
- Jannie Pedersen
- Department of Gastroenterology, Medical Section, Herlev Hospital, University of Copenhagen, DK-2730 Herlev, Denmark
| | - Eric C LaCasse
- Apoptosis Research Centre, Children's Hospital of Eastern Ontario Research Institute, Ottawa, K1H 8L1, Canada.
| | - Jakob B Seidelin
- Department of Gastroenterology, Medical Section, Herlev Hospital, University of Copenhagen, DK-2730 Herlev, Denmark
| | - Mehmet Coskun
- Department of Gastroenterology, Medical Section, Herlev Hospital, University of Copenhagen, DK-2730 Herlev, Denmark
| | - Ole H Nielsen
- Department of Gastroenterology, Medical Section, Herlev Hospital, University of Copenhagen, DK-2730 Herlev, Denmark
| |
Collapse
|
14
|
Severo MS, Choy A, Stephens KD, Sakhon OS, Chen G, Chung DWD, Le Roch KG, Blaha G, Pedra JHF. The E3 ubiquitin ligase XIAP restricts Anaplasma phagocytophilum colonization of Ixodes scapularis ticks. J Infect Dis 2013; 208:1830-40. [PMID: 23901084 DOI: 10.1093/infdis/jit380] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Ubiquitination is a posttranslational modification that regulates protein degradation and signaling in eukaryotes. Although it is acknowledged that pathogens exploit ubiquitination to infect mammalian cells, it remains unknown how microbes interact with the ubiquitination machinery in medically relevant arthropods. Here, we show that the ubiquitination machinery is present in the tick Ixodes scapularis and demonstrate that the E3 ubiquitin ligase named x-linked inhibitor of apoptosis protein (XIAP) restricts bacterial colonization of this arthropod vector. We provide evidence that xiap silencing significantly increases tick colonization by the bacterium Anaplasma phagocytophilum, the causative agent of human granulocytic anaplasmosis. We also demonstrate that (i) XIAP polyubiquitination is dependent on the really interesting new gene (RING) catalytic domain, (ii) XIAP polyubiquitination occurs via lysine (K)-63 but not K-48 residues, and (iii) XIAP-dependent K-63 polyubiquitination requires zinc for catalysis. Taken together, our data define a role for ubiquitination during bacterial colonization of disease vectors.
Collapse
Affiliation(s)
- Maiara S Severo
- Center for Disease Vector Research and Department of Entomology
| | | | | | | | | | | | | | | | | |
Collapse
|