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Guo J, Su L, Du G, Chen Y, Liu C, Wang B, Lv Y, Yang S, Xie X. Recurrent intestinal ulcers and perforations complicated with pigmentation. Gut 2024:gutjnl-2024-332057. [PMID: 38418212 DOI: 10.1136/gutjnl-2024-332057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 02/10/2024] [Indexed: 03/01/2024]
Affiliation(s)
- Junfeng Guo
- Department of Gastroenterology, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Linxi Su
- Department of Pathology, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Guangsheng Du
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Yuyang Chen
- Department of Gastroenterology, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Cheng Liu
- Department of Gastroenterology, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Bing Wang
- Department of Radiology, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Yangfan Lv
- Department of Pathology, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Shiming Yang
- Department of Gastroenterology, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Xia Xie
- Department of Gastroenterology, Xinqiao Hospital, Army Medical University, Chongqing, China
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Human Genetic Diseases Linked to the Absence of NEMO: An Obligatory Somatic Mosaic Disorder in Male. Int J Mol Sci 2022; 23:ijms23031179. [PMID: 35163099 PMCID: PMC8835834 DOI: 10.3390/ijms23031179] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/17/2022] [Accepted: 01/18/2022] [Indexed: 01/22/2023] Open
Abstract
De novo somatic mutations are well documented in diseases such as neoplasia but are rarely reported in rare diseases. Hovewer, severe genetic diseases that are not compatible with embryonic development are caused exclusively by deleterious mutations that could only be found as mosaic and not as inherited mutations. We will review here the paradigmatic case of Incontinentia Pigmenti, a rare X-linked dominant disease caused by deficiency of the NEMO (also called IKKgamma) protein, which plays a pivotal role in tissue homeostasis. The loss-of-function mutations of NEMO are embryonically lethal in males while females survive because of unbalanced X-inactivation due to NEMO wild type (WT) expressing cells survival despite of NEMO mutant expressing cells. The few surviving IP males are obligatory mosaic mutants with the typical clinical presentation of IP in female. Indeed, the IP pathogenesis in the female and most likely also in the male somatic mosaics is based on the cellular effects of an impaired NEMO activity, but in the context of the interaction of genetically different cells in the affected tissue, which might underline the inflammatory status.
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Bodemer C, Diociaiuti A, Hadj-Rabia S, Robert MP, Desguerre I, Manière MC, de la Dure-Molla M, De Liso P, Federici M, Galeotti A, Fusco F, Fraitag S, Demily C, Taieb C, Valeria Ursini M, El Hachem M, Steffann J. Multidisciplinary consensus recommendations from a European network for the diagnosis and practical management of patients with incontinentia pigmenti. J Eur Acad Dermatol Venereol 2021; 34:1415-1424. [PMID: 32678511 DOI: 10.1111/jdv.16403] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2019] [Revised: 02/28/2020] [Accepted: 03/10/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND Incontinentia pigmenti (IP) is a rare multisystemic X-linked dominant genetic disorder characterized by highly diagnostic skin lesions. The disease can be misdiagnosed in infants, and complications affecting the eyes and/or the brain can be severe. Our objective was to highlight the urgency of an appropriate diagnosis and management strategy, as soon as the first symptoms appear, and the need for a well-codified monitoring strategy for each child. METHODS An in-depth literature review using a large number of databases was conducted. The selection criteria for articles were literature review articles on the disease, case series and retrospective studies based on the disease, clinical studies (randomized or not) on treatment, articles discussing patient care and management (treatment, diagnosis, care pathways), and recommendations. The research period was from 2000 until 2018. A group of multidisciplinary experts in IP management was involved, issued from different healthcare providers of the European Network for Rare Skin Diseases (ERN-Skin). The final recommendations have been submitted to two patient representative associations and to a general practitioner and a neonatal specialist prior to their finalization. RESULTS AND CONCLUSION The diagnosis of IP must be promptly performed to detect potential extracutaneous manifestations, thus allowing the timely implementation of specific therapeutic and monitoring strategies. Eye involvement can be a therapeutic urgency, and central nervous system (CNS) involvement requires a very rigorous long-term follow-up. Assessments and patient support should take into account the possible co-occurrence of various symptoms (including motor, visual and cognitive symptoms).
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Affiliation(s)
- C Bodemer
- Department of Dermatology, Reference Centre for Genodermatoses (MAGEC) Necker Enfants Malades Hospital, Imagine Institute, FIMARAD, ERN-Skin, Paris Centre University, Paris, France
| | - A Diociaiuti
- Department of Dermatology, ERN-Skin, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - S Hadj-Rabia
- Department of Dermatology, Reference Centre for Genodermatoses (MAGEC) Necker Enfants Malades Hospital, Imagine Institute, FIMARAD, ERN-Skin, Paris Centre University, Paris, France
| | - M P Robert
- Department of Ophthalmology, Imagine Institute, Necker Enfants Malades Hospital, Paris Centre University France, Paris, France
| | - I Desguerre
- Department of Pediatric Neurology, Imagine Institute, Necker Enfants Malades Hospital, Paris Centre University France, Paris, France
| | - M-C Manière
- Department of Pediatric Odontology, Expert Centre (MAFACE), Strasbourg Hospital, Université de Chirurgie Dentaire, Strasbourg, France
| | - M de la Dure-Molla
- Expert Centre for Rare Face and Oral Cavity Malformations, Rothschild Cavity, Paris, France
| | - P De Liso
- Neurology Unit, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - M Federici
- Ophthalmology Unit, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - A Galeotti
- Dentistry Unit, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - F Fusco
- Institute of Genetics and Biophysics 'Adriano Buzzati-Traverso', IGB-CNR, Naples, Italy
| | - S Fraitag
- Department of Pathology, Necker Enfants Malades Hospital, Paris, France
| | - C Demily
- Reference Centre Génopsy, CRMR Maladies Rares à Expression Psychiatrique, Centre Hospitalier Le Vinatier, Bron, France
| | - C Taieb
- National Network for Rare Diseases FIMARA, Necker Enfants Malades Hospital, Paris, France
| | - M Valeria Ursini
- Institute of Genetics and Biophysics 'Adriano Buzzati-Traverso', IGB-CNR, Naples, Italy
| | - M El Hachem
- Department of Dermatology, ERN-Skin, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - J Steffann
- Department of Genetics, Imagine Institute, Necker Enfants Malades Hospital, Paris Centre Université, Paris, France
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Zhang X, Wang J, Zhu J, Liang Y. Downregulation of SHANK-associated RH domain-interacting protein elevates interleukin-33 expression by stimulating the Janus kinase 2/signal transducer and activator of transcription signalling pathway in HaCaT cells. Clin Exp Dermatol 2021; 46:880-887. [PMID: 33548083 DOI: 10.1111/ced.14591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 12/20/2020] [Accepted: 02/01/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND Atopic dermatitis (AD) is a chronic inflammatory skin disease in which T-helper type 2 (Th2) immune responses are dominant. SH3 and multiple ankyrin repeat domains (SHANK)-associated RH domain-interacting protein (SHARPIN) is expressed at low levels in AD, resulting in the upregulation of the signal transducer and activator of transcription (STAT)3 protein and the Th2 cytokine, interleukin (IL)-33. However, the roles of SHARPIN in AD are not yet fully elucidated. AIM To evaluate the signalling interactions of SHARPIN and IL-33 in order to improve understanding of AD pathogenesis. METHODS Western blotting was used to detect the Janus kinase (JAK)/STAT signalling proteins and IL-33 protein in HaCaT cells to determine the key proteins mediating the interaction between SHARPIN and IL-33. The findings were validated by immunofluorescence and immunohistochemical staining. Chromatin immunoprecipitation assays were used to evaluate the activity of STAT3 at the IL-33 promoter. RESULTS We found that phosphorylated (p)JAK2 and pSTAT3 were upregulated in SHARPIN-knockdown HaCaT cells. Subsequent chromatin immunoprecipitation assays revealed that STAT3 binds to the IL-33 promoter to mediate IL-33 expression. Moreover, SHARPIN-mediated expression of IL-33 was reduced after treatment of HaCaT cells with the JAK/STAT inhibitor ruxolitinib. STAT3 and IL-33 expression levels were higher in AD skin lesion tissues than in normal skin tissues. CONCLUSION These findings suggest that SHARPIN modulates inflammation in HaCaT cells by inhibiting JAK/STAT signalling, supporting the application of SHARPIN as a potential therapeutic target for AD.
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Affiliation(s)
- X Zhang
- Department of Dermatology, Cosmetology and Venereology, Shenzhen Hospital, Southern Medical University, Shenzhen, Guangdong, China
| | - J Wang
- Department of Dermatology, Cosmetology and Venereology, Shenzhen Hospital, Southern Medical University, Shenzhen, Guangdong, China
| | - J Zhu
- Department of Dermatology, Cosmetology and Venereology, Shenzhen Hospital, Southern Medical University, Shenzhen, Guangdong, China
| | - Y Liang
- Department of Dermatology, Cosmetology and Venereology, Shenzhen Hospital, Southern Medical University, Shenzhen, Guangdong, China
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Krishnan D, Menon RN, Gopala S. SHARPIN: Role in Finding NEMO and in Amyloid-Beta Clearance and Degradation (ABCD) Pathway in Alzheimer's Disease? Cell Mol Neurobiol 2021; 42:1267-1281. [PMID: 33400084 DOI: 10.1007/s10571-020-01023-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 11/28/2020] [Indexed: 12/11/2022]
Abstract
SHANK- associated RH domain-interacting protein (SHARPIN) is a multifunctional protein associated with numerous physiological functions and many diseases. The primary role of the protein as a LUBAC-dependent component in regulating the activation of the transcription factor NF-κB accounts to its role in inflammation and antiapoptosis. Hence, an alteration of SHARPIN expression or genetic mutations or polymorphisms leads to the alteration of the above-mentioned primary physiological functions contributing to inflammation-associated diseases and cancer, respectively. However, there are complications of targeting SHARPIN as a therapeutic approach, which arises from the wide-range of LUBAC-independent functions and yet unknown roles of SHARPIN including neuronal functions. The identification of SHARPIN as a postsynaptic protein and the emerging studies indicating its role in several neurodegenerative diseases including Alzheimer's disease suggests a strong role of SHARPIN in neuronal functioning. This review summarizes the functional roles of SHARPIN in normal physiology and disease pathogenesis and strongly suggests a need for concentrating more studies on identifying the unknown neuronal functions of SHARPIN and hence its role in neurodegenerative diseases.
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Affiliation(s)
- Dhanya Krishnan
- Department of Biochemistry, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, 695011, Kerala, India
| | - Ramsekhar N Menon
- Department of Neurology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, 695011, Kerala, India
| | - Srinivas Gopala
- Department of Biochemistry, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, 695011, Kerala, India.
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Zeng C, Xiong D, Zhang K, Yao J. Shank-associated RH domain interactor signaling in tumorigenesis. Oncol Lett 2020; 20:2579-2586. [PMID: 32782575 PMCID: PMC7400965 DOI: 10.3892/ol.2020.11850] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 05/18/2020] [Indexed: 12/13/2022] Open
Abstract
Shank-associated RH domain interactor (SHARPIN) is a component of the linear ubiquitin chain activation complex, which is essential for p53 signaling and inflammation. Previous studies have demonstrated that SHARPIN functions in tumor cell survival, growth, invasion and tumorigenesis. These functions include the regulation of p53 proteins via poly-ubiquitination, interaction with a type II protein arginine methyltransferase 5 in melanoma cells, modulating ras-associated protein-1 through p38 and c-Jun N-terminal kinases/c-Jun signaling, and mediating phosphoinositide 3-kinase/AKT signaling via phosphatase and tensin homologue deleted on chromosome 10. Hence, SHARPIN not only participates in the inflammatory response but also serves a critical role in tumor cells. The present review summarizes the biological functions of the absence or presence of SHARPIN with regard to activating the canonical NF-κB signaling pathway and the effects on p53 and other signaling pathways for the modulation of tumorigenesis. Therefore, this review provides insight into the underlying role and mechanisms of SHARPIN in tumorigenesis, as well as its potential application in cancer therapy.
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Affiliation(s)
- Chong Zeng
- Medical Research Center, Shunde Hospital, Southern Medical University, The First People's Hospital of Shunde, Foshan, Guangdong 528308, P.R. China
| | - Dan Xiong
- Department of Hematology, Shunde Hospital, Southern Medical University, The First People's Hospital of Shunde, Foshan, Guangdong 528308, P.R. China
| | - Ketao Zhang
- Department of Hepatobiliary Surgery, Shunde Hospital, Southern Medical University, The First People's Hospital of Shunde, Foshan, Guangdong 528308, P.R. China
| | - Jie Yao
- Medical Research Center, Shunde Hospital, Southern Medical University, The First People's Hospital of Shunde, Foshan, Guangdong 528308, P.R. China
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Gao J, Bao Y, Ge S, Sun P, Sun J, Liu J, Chen F, Han L, Cao Z, Qin J, White GC, Xu Z, Ma YQ. Sharpin suppresses β1-integrin activation by complexing with the β1 tail and kindlin-1. Cell Commun Signal 2019; 17:101. [PMID: 31429758 PMCID: PMC6700787 DOI: 10.1186/s12964-019-0407-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 07/28/2019] [Indexed: 12/30/2022] Open
Abstract
Background Previously sharpin has been identified as an endogenous inhibitor of β1-integrin activation by directly binding to a conserved region in the cytoplasmic tails (CTs) of the integrin β1-associated α subunits. Methods Here we employed biochemical approaches and cellular analyses to evaluate the function and molecular mechanism of the sharpin-kindlin-1 complex in regulating β1-integrin activation. Results In this study, we found that although the inhibition of sharpin on β1-integrin activation could be confirmed, sharpin had no apparent effect on integrin αIIbβ3 activation in CHO cell system. Notably, a direct interaction between sharpin and the integrin β1 CT was detected, while the interaction of sharpin with the integrin αIIb and the β3 CTs were substantially weaker. Importantly, sharpin was able to inhibit the talin head domain binding to the integrin β1 CT, which can mechanistically contribute to inhibiting β1-integrin activation. Interestingly, we also found that sharpin interacted with kindlin-1, and the interaction between sharpin and the integrin β1 CT was significantly enhanced when kindlin-1 was present. Consistently, we observed that instead of acting as an activator, kindlin-1 actually suppressed the talin head domain mediated β1-integrin activation, indicating that kindlin-1 may facilitate recruitment of sharpin to the integrin β1 CT. Conclusion Taken together, our findings suggest that sharpin may complex with both kindlin-1 and the integrin β1 CT to restrict the talin head domain binding, thus inhibiting β1-integrin activation.
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Affiliation(s)
- Juan Gao
- Collaborative Research Program for Cell Adhesion Molecules, Shanghai University School of Life Sciences, Shanghai, China
| | - Yun Bao
- Collaborative Research Program for Cell Adhesion Molecules, Shanghai University School of Life Sciences, Shanghai, China
| | - Shushu Ge
- Collaborative Research Program for Cell Adhesion Molecules, Shanghai University School of Life Sciences, Shanghai, China
| | - Peisen Sun
- Collaborative Research Program for Cell Adhesion Molecules, Shanghai University School of Life Sciences, Shanghai, China
| | - Jiaojiao Sun
- Collaborative Research Program for Cell Adhesion Molecules, Shanghai University School of Life Sciences, Shanghai, China
| | - Jianmin Liu
- Department of Molecular Cardiology, Lerner Research Institute Cleveland Clinic, Cleveland, OH, USA
| | - Feng Chen
- Collaborative Research Program for Cell Adhesion Molecules, Shanghai University School of Life Sciences, Shanghai, China
| | - Li Han
- Collaborative Research Program for Cell Adhesion Molecules, Shanghai University School of Life Sciences, Shanghai, China
| | - Zhongyuan Cao
- Collaborative Research Program for Cell Adhesion Molecules, Shanghai University School of Life Sciences, Shanghai, China
| | - Jun Qin
- Department of Molecular Cardiology, Lerner Research Institute Cleveland Clinic, Cleveland, OH, USA
| | - Gilbert C White
- Blood Research Institute, Versiti, 8727 Watertown Plank Road, Milwaukee, WI, 53226, USA.,Department of Biochemistry, Medical College of Milwaukee, Milwaukee, WI, USA
| | - Zhen Xu
- Collaborative Research Program for Cell Adhesion Molecules, Shanghai University School of Life Sciences, Shanghai, China. .,Blood Research Institute, Versiti, 8727 Watertown Plank Road, Milwaukee, WI, 53226, USA.
| | - Yan-Qing Ma
- Collaborative Research Program for Cell Adhesion Molecules, Shanghai University School of Life Sciences, Shanghai, China. .,Blood Research Institute, Versiti, 8727 Watertown Plank Road, Milwaukee, WI, 53226, USA. .,Department of Biochemistry, Medical College of Milwaukee, Milwaukee, WI, USA.
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Fusco F, Pescatore A, Steffann J, Bonnefont JP, De Oliveira J, Lioi MB, Ursini MV. Clinical utility gene card: for incontinentia pigmenti. Eur J Hum Genet 2019; 27:1894-1900. [PMID: 31289372 DOI: 10.1038/s41431-019-0463-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 06/20/2019] [Accepted: 06/25/2019] [Indexed: 01/06/2023] Open
Affiliation(s)
- Francesca Fusco
- Institute of Genetics and Biophysics "Adriano Buzzati-Traverso", IGB-CNR, Naples, 80131, Italy
| | - Alessandra Pescatore
- Institute of Genetics and Biophysics "Adriano Buzzati-Traverso", IGB-CNR, Naples, 80131, Italy
| | - Julie Steffann
- Université Paris Descartes-Sorbonne Paris Cité, Imagine INSERM UMR1163, Service de Génétique Moléculaire, Hopital Necker-Enfants Malades, AP-HP, Paris, France
| | - Jean-Paul Bonnefont
- Université Paris Descartes-Sorbonne Paris Cité, Imagine INSERM UMR1163, Service de Génétique Moléculaire, Hopital Necker-Enfants Malades, AP-HP, Paris, France
| | - Judite De Oliveira
- Université Paris Descartes-Sorbonne Paris Cité, Imagine INSERM UMR1163, Service de Génétique Moléculaire, Hopital Necker-Enfants Malades, AP-HP, Paris, France
| | | | - Matilde Valeria Ursini
- Institute of Genetics and Biophysics "Adriano Buzzati-Traverso", IGB-CNR, Naples, 80131, Italy.
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Arterivirus nsp4 Antagonizes Interferon Beta Production by Proteolytically Cleaving NEMO at Multiple Sites. J Virol 2019; 93:JVI.00385-19. [PMID: 30944180 PMCID: PMC6613749 DOI: 10.1128/jvi.00385-19] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 03/30/2019] [Indexed: 12/24/2022] Open
Abstract
Equine arteritis virus (EAV) and porcine reproductive and respiratory syndrome virus (PRRSV) represent two members of the family Arteriviridae and pose major threats for the horse- and swine-breeding industries worldwide. A previous study suggested that PRRSV nsp4, a 3C-like protease, antagonizes interferon beta (IFN-β) production by cleaving the NF-κB essential modulator (NEMO) at a single site, glutamate 349 (E349). Here, we demonstrated that EAV nsp4 also inhibited virus-induced IFN-β production by targeting NEMO for proteolytic cleavage and that the scission occurred at four sites: E166, E171, glutamine 205 (Q205), and E349. Additionally, we found that, besides the previously reported cleavage site E349 in NEMO, scission by PRRSV nsp4 took place at two additional sites, E166 and E171. These results imply that while cleaving NEMO is a common strategy utilized by EAV and PRRSV nsp4 to antagonize IFN induction, EAV nsp4 adopts a more complex substrate recognition mechanism to target NEMO. By analyzing the abilities of the eight different NEMO fragments resulting from EAV or PRRSV nsp4 scission to induce IFN-β production, we serendipitously found that a NEMO fragment (residues 1 to 349) could activate IFN-β transcription more robustly than full-length NEMO, whereas all other NEMO cleavage products were abrogated for the IFN-β-inducing capacity. Thus, NEMO cleavage at E349 alone may not be sufficient to completely inactivate the IFN response via this signaling adaptor. Altogether, our findings suggest that EAV and PRRSV nsp4 cleave NEMO at multiple sites and that this strategy is critical for disarming the innate immune response for viral survival.IMPORTANCE The arterivirus nsp4-encoded 3C-like protease (3CLpro) plays an important role in virus replication and immune evasion, making it an attractive target for antiviral therapeutics. Previous work suggested that PRRSV nsp4 suppresses type I IFN production by cleaving NEMO at a single site. In contrast, the present study demonstrates that both EAV and PRRSV nsp4 cleave NEMO at multiple sites and that this strategy is essential for disruption of type I IFN production. Moreover, we reveal that EAV nsp4 also cleaves NEMO at glutamine 205 (Q205), which is not targeted by PRRSV nsp4. Notably, targeting a glutamine in NEMO for cleavage has been observed only with picornavirus 3C proteases (3Cpro) and coronavirus 3CLpro In aggregate, our work expands knowledge of the innate immune evasion mechanisms associated with NEMO cleavage by arterivirus nsp4 and describes a novel substrate recognition characteristic of EAV nsp4.
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10
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Sun S, Li F, Liu Y, Qu H, Wong SW, Zeng L, Yu M, Feng H, Liu H, Han D. A novel inhibitor of nuclear factor kappa-B kinase subunit gamma mutation identified in an incontinentia pigmenti patient with syndromic tooth agenesis. Arch Oral Biol 2019; 101:100-107. [PMID: 30913450 DOI: 10.1016/j.archoralbio.2019.03.013] [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: 12/11/2018] [Revised: 03/14/2019] [Accepted: 03/16/2019] [Indexed: 12/20/2022]
Abstract
OBJECTIVE To explore the gene mutation in an incontinentia pigmenti (IP) patient with syndromic tooth agenesis. METHODS Long-range polymerase chain reaction (PCR) and Sanger sequencing were used to detect inhibitor of nuclear factor kappa-B kinase subunit gamma (IKBKG) mutation in the IP patient. We used the nuclear factor kappa B (NF-κB) reporter gene to assess activation of NF-κB, after transfecting an empty vector, wild-type, or mutant NF-κB essential modulator (NEMO) plasmid into IKBKG-deficient HEK293T cells, respectively. Furthermore, we performed immunoprecipitation and immunoblotting to describe the polyubiquitination of NEMO. Lastly, we detected the interactions between mutant NEMO and I kappa B kinase alpha (IKKα), I kappa B kinase beta (IKKβ), TNF receptor associated factor 6 (TRAF6), HOIL-1-interacting protein (HOIP), hemo-oxidized iron regulatory protein 2 ligase 1 (HOIL-1), and SHANK-associated RH domain interactor (SHARPIN). RESULTS A de novo nonsense mutation in IKBKG (c.924C > G; p.Tyr308*) was observed. The Tyr308* mutation inhibited activation of the NF-κB pathway by reducing K63-linked polyubiquitination and linear polyubiquitination. The mutant NEMO was not able to interact with TRAF6, HOIL-1, or SHARPIN. CONCLUSIONS We identified a novel nonsense IKBKG mutation (c.924C > G; p.Tyr308*) in an IP patient with syndromic tooth agenesis. This research enriches the mutation spectrum of the IKBKG gene.
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Affiliation(s)
- Shichen Sun
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, 22 Zhongguancun South Avenue, Haidian District, Beijing 100081, PR China
| | - Fang Li
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, 22 Zhongguancun South Avenue, Haidian District, Beijing 100081, PR China
| | - Yang Liu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, 22 Zhongguancun South Avenue, Haidian District, Beijing 100081, PR China
| | - Hong Qu
- Center for Bioinformatics, State Key Laboratory of Protein and Plant Gene Research, College of Life Sciences, Peking University, Beijing 100871, PR China
| | - Sing-Wai Wong
- Oral and Craniofacial Biomedicine Curriculum, School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Li Zeng
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, 22 Zhongguancun South Avenue, Haidian District, Beijing 100081, PR China
| | - Miao Yu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, 22 Zhongguancun South Avenue, Haidian District, Beijing 100081, PR China
| | - Hailan Feng
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, 22 Zhongguancun South Avenue, Haidian District, Beijing 100081, PR China
| | - Haochen Liu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, 22 Zhongguancun South Avenue, Haidian District, Beijing 100081, PR China.
| | - Dong Han
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, 22 Zhongguancun South Avenue, Haidian District, Beijing 100081, PR China.
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Barros FS, Marussi VHR, Amaral LLF, da Rocha AJ, Campos CMS, Freitas LF, Huisman TAGM, Soares BP. The Rare Neurocutaneous Disorders: Update on Clinical, Molecular, and Neuroimaging Features. Top Magn Reson Imaging 2018; 27:433-462. [PMID: 30516694 DOI: 10.1097/rmr.0000000000000185] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Phakomatoses, also known as neurocutaneous disorders, comprise a vast number of entities that predominantly affect structures originated from the ectoderm such as the central nervous system and the skin, but also the mesoderm, particularly the vascular system. Extensive literature exists about the most common phakomatoses, namely neurofibromatosis, tuberous sclerosis, von Hippel-Lindau and Sturge-Weber syndrome. However, recent developments in the understanding of the molecular underpinnings of less common phakomatoses have sparked interest in these disorders. In this article, we review the clinical features, current pathogenesis, and modern neuroimaging findings of melanophakomatoses, vascular phakomatoses, and other rare neurocutaneous syndromes that may also include tissue overgrowth or neoplastic predisposition.
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Affiliation(s)
- Felipe S Barros
- Division of Neuroradiology, BP Medicina Diagnóstica, Hospital da Beneficência Portuguesa de São Paulo
| | - Victor Hugo R Marussi
- Division of Neuroradiology, BP Medicina Diagnóstica, Hospital da Beneficência Portuguesa de São Paulo
| | - Lázaro L F Amaral
- Division of Neuroradiology, BP Medicina Diagnóstica, Hospital da Beneficência Portuguesa de São Paulo
| | - Antônio José da Rocha
- Division of Neuroradiology, Department of Radiology, Santa Casa de São Paulo School of Medical Sciences, São Paulo, Brazil
| | - Christiane M S Campos
- Division of Neuroradiology, BP Medicina Diagnóstica, Hospital da Beneficência Portuguesa de São Paulo
| | - Leonardo F Freitas
- Division of Neuroradiology, BP Medicina Diagnóstica, Hospital da Beneficência Portuguesa de São Paulo
| | - Thierry A G M Huisman
- Division of Pediatric Radiology and Pediatric Neuroradiology, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Bruno P Soares
- Division of Pediatric Radiology and Pediatric Neuroradiology, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD
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Courtois G, Fauvarque MO. The Many Roles of Ubiquitin in NF-κB Signaling. Biomedicines 2018; 6:E43. [PMID: 29642643 PMCID: PMC6027159 DOI: 10.3390/biomedicines6020043] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 03/31/2018] [Accepted: 04/02/2018] [Indexed: 12/24/2022] Open
Abstract
The nuclear factor κB (NF-κB) signaling pathway ubiquitously controls cell growth and survival in basic conditions as well as rapid resetting of cellular functions following environment changes or pathogenic insults. Moreover, its deregulation is frequently observed during cell transformation, chronic inflammation or autoimmunity. Understanding how it is properly regulated therefore is a prerequisite to managing these adverse situations. Over the last years evidence has accumulated showing that ubiquitination is a key process in NF-κB activation and its resolution. Here, we examine the various functions of ubiquitin in NF-κB signaling and more specifically, how it controls signal transduction at the molecular level and impacts in vivo on NF-κB regulated cellular processes.
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Maubach G, Schmädicke AC, Naumann M. NEMO Links Nuclear Factor-κB to Human Diseases. Trends Mol Med 2017; 23:1138-1155. [PMID: 29128367 DOI: 10.1016/j.molmed.2017.10.004] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 10/16/2017] [Accepted: 10/19/2017] [Indexed: 12/13/2022]
Abstract
The nuclear factor (NF)-κB essential modulator (NEMO) is a key regulator in NF-κB-mediated signaling. By transmitting extracellular or intracellular signals, NEMO can control NF-κB-regulated genes. NEMO dysfunction is associated with inherited diseases such as incontinentia pigmenti (IP), ectodermal dysplasia, anhidrotic, with immunodeficiency (EDA-ID), and some cancers. We focus on molecular studies, human case reports, and mouse models emphasizing the significance of NEMO molecular interactions and modifications in health and diseases. This knowledge opens new opportunities to engineer suitable drugs that may putatively target precise NEMO functions attributable to various diseases, while leaving other functions intact, and eliminating cytotoxicity. Indeed, with the advent of novel gene editing tools such as clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein (Cas)9, treating some inherited diseases may in the long run, become a reality.
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Affiliation(s)
- Gunter Maubach
- Institute of Experimental Internal Medicine, Otto von Guericke University, Magdeburg, Germany
| | - Ann-Christin Schmädicke
- Institute of Experimental Internal Medicine, Otto von Guericke University, Magdeburg, Germany
| | - Michael Naumann
- Institute of Experimental Internal Medicine, Otto von Guericke University, Magdeburg, Germany.
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