1
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Riller Q, Sorin B, Courteille C, Ho-Nhat D, Voyer TL, Debray JC, Stolzenberg MC, Pellé O, Becquard T, Riestra MR, Berteloot L, Migaud M, Delage L, Jeanpierre M, Boussard C, Brunaud C, Magérus A, Michel V, Roux C, Picard C, Masson C, Bole-Feysot C, Cagnard N, Corneau A, Meyts I, Baud V, Casanova JL, Fischer A, Dejardin E, Puel A, Boulanger C, Neven B, Rieux-Laucat F. Compound heterozygous mutations in the kinase domain of IKKα lead to immunodeficiency and immune dysregulation. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.05.17.24307356. [PMID: 38798321 PMCID: PMC11118628 DOI: 10.1101/2024.05.17.24307356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
IKKα, encoded by CHUK , is crucial in the non-canonical NF-κB pathway and part of the IKK complex activating the canonical pathway alongside IKKβ. Absence of IKKα cause fetal encasement syndrome in human, fatal in utero, while an impaired IKKα-NIK interaction was reported in a single patient and cause combined immunodeficiency. Here, we describe compound heterozygous variants in the kinase domain of IKKα in a female patient with hypogammaglobulinemia, recurrent lung infections, and Hay-Wells syndrome-like features. We showed that both variants were loss-of-function. Non-canonical NF-κB activation was profoundly diminished in stromal and immune cells while the canonical pathway was partially impaired. Reintroducing wild-type CHUK restored non-canonical NF-κB activation. The patient had neutralizing autoantibodies against type I IFN, akin to non-canonical NF-κB pathway deficiencies. Thus, this is the first case of bi-allelic CHUK mutations disrupting IKKα kinase function, broadening non-canonical NF-κB defect understanding and suggesting IKKα's role in canonical NF-κB target gene expression in human.
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2
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Li MY, Chong LC, Duns G, Lytle A, Woolcock B, Jiang A, Telenius A, Ben-Neriah S, Nawaz W, Slack GW, Elisia I, Viganò E, Aoki T, Healy S, Krystal G, Venturutti L, Scott DW, Steidl C. TRAF3 loss-of-function reveals the noncanonical NF-κB pathway as a therapeutic target in diffuse large B cell lymphoma. Proc Natl Acad Sci U S A 2024; 121:e2320421121. [PMID: 38662551 PMCID: PMC11067025 DOI: 10.1073/pnas.2320421121] [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: 11/20/2023] [Accepted: 03/29/2024] [Indexed: 05/05/2024] Open
Abstract
Here, we report recurrent focal deletions of the chr14q32.31-32 locus, including TRAF3, a negative regulator of NF-κB signaling, in de novo diffuse large B cell lymphoma (DLBCL) (24/324 cases). Integrative analysis revealed an association between TRAF3 copy number loss with accumulation of NIK, the central noncanonical (NC) NF-κB kinase, and increased NC NF-κB pathway activity. Accordingly, TRAF3 genetic ablation in isogenic DLBCL model systems caused upregulation of NIK and enhanced NC NF-κB downstream signaling. Knockdown or pharmacological inhibition of NIK in TRAF3-deficient cells differentially impaired their proliferation and survival, suggesting an acquired onco-addiction to NC NF-κB. TRAF3 ablation also led to exacerbated secretion of the immunosuppressive cytokine IL-10. Coculturing of TRAF3-deficient DLBCL cells with CD8+ T cells impaired the induction of Granzyme B and interferon (IFN) γ, which were restored following neutralization of IL-10. Our findings corroborate a direct relationship between TRAF3 genetic alterations and NC NF-κB activation, and highlight NIK as a potential therapeutic target in a defined subset of DLBCL.
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Affiliation(s)
- Michael Y. Li
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, BCV5Z 1L3, Canada
- Department of Pathology and Laboratory Medicine, The University of British Columbia, Vancouver, BCV6T 2B5, Canada
| | - Lauren C. Chong
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, BCV5Z 1L3, Canada
| | - Gerben Duns
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, BCV5Z 1L3, Canada
| | - Andrew Lytle
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, BCV5Z 1L3, Canada
| | - Bruce Woolcock
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, BCV5Z 1L3, Canada
| | - Aixiang Jiang
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, BCV5Z 1L3, Canada
- Department of Pathology and Laboratory Medicine, The University of British Columbia, Vancouver, BCV6T 2B5, Canada
| | - Adèle Telenius
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, BCV5Z 1L3, Canada
| | - Susana Ben-Neriah
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, BCV5Z 1L3, Canada
| | - Waqas Nawaz
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, BCV5Z 1L3, Canada
| | - Graham W. Slack
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, BCV5Z 1L3, Canada
- Department of Pathology and Laboratory Medicine, The University of British Columbia, Vancouver, BCV6T 2B5, Canada
| | - Ingrid Elisia
- Terry Fox Laboratory, British Columbia Cancer, Vancouver, BCV5Z 1L3, Canada
| | - Elena Viganò
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, BCV5Z 1L3, Canada
| | - Tomohiro Aoki
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, BCV5Z 1L3, Canada
| | - Shannon Healy
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, BCV5Z 1L3, Canada
| | - Gerald Krystal
- Terry Fox Laboratory, British Columbia Cancer, Vancouver, BCV5Z 1L3, Canada
| | - Leandro Venturutti
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, BCV5Z 1L3, Canada
- Department of Pathology and Laboratory Medicine, The University of British Columbia, Vancouver, BCV6T 2B5, Canada
- Terry Fox Laboratory, British Columbia Cancer, Vancouver, BCV5Z 1L3, Canada
| | - David W. Scott
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, BCV5Z 1L3, Canada
- Department of Pathology and Laboratory Medicine, The University of British Columbia, Vancouver, BCV6T 2B5, Canada
| | - Christian Steidl
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, BCV5Z 1L3, Canada
- Department of Pathology and Laboratory Medicine, The University of British Columbia, Vancouver, BCV6T 2B5, Canada
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Li X, Zhou G, Sun X, Qu S, Lai H, Wu Y, Li D, Liu L, Zhang G, Yang J, Huang X. NLRP12 Senses the SARS-CoV-2 Membrane Protein and Promotes an Inflammatory Response. J Infect Dis 2024; 229:660-670. [PMID: 37976229 DOI: 10.1093/infdis/jiad458] [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: 01/12/2023] [Indexed: 11/19/2023] Open
Abstract
COVID-19 is an acute respiratory disorder that is caused by SARS-CoV-2, in which excessive systemic inflammation is associated with adverse patient clinical outcomes. Here, we observed elevated expression levels of NLRP12 (nucleotide-binding leucine-rich repeat-containing receptor 12) in human peripheral monocytes and lung tissue during infection with SARS-CoV-2. Co-immunoprecipitation analysis revealed that NLRP12 directly interacted with the M protein through its leucine-rich repeat domain. Moreover, in vitro studies demonstrated that NLRP12 interacted with TRAF3 and promoted its ubiquitination and degradation, which counteracted the inhibitory effect of TRAF3 on the NF-κB/MAPK signaling pathway and promoted the production of inflammatory cytokines. Furthermore, an in vivo study revealed that NLRP12 knockout mice displayed attenuated tissue injury and ameliorated inflammatory responses in the lungs when infected with a SARS-CoV-2 M protein-reconstituted pseudovirus and mouse coronavirus. Taken together, these findings suggest that NLRP12 mediates the inflammatory responses during coronavirus infection.
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Affiliation(s)
- Xingyu Li
- National Clinical Research Center for Infectious Disease, Shenzhen Third People's Hospital, The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen
- Center for Infection and Immunity and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou
| | - Guangde Zhou
- National Clinical Research Center for Infectious Disease, Shenzhen Third People's Hospital, The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen
| | - Xingzi Sun
- National Clinical Research Center for Infectious Disease, Shenzhen Third People's Hospital, The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen
- Center for Infection and Immunity and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai
| | - Siying Qu
- Center for Infection and Immunity and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai
| | - Hongzhi Lai
- Medical Intensive Care Unit, The Third People's Hospital of Shantou, Shantou
| | - Yongjian Wu
- Center for Infection and Immunity and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai
| | - Dechang Li
- Tuberculosis Prevention and Control Institution, Yuebei Second People's Hospital, Shaoguan
| | - Lei Liu
- National Clinical Research Center for Infectious Disease, Shenzhen Third People's Hospital, The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen
| | - Guoliang Zhang
- National Clinical Research Center for Infectious Disease, Shenzhen Third People's Hospital, The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen
| | - Jingwen Yang
- Qingyuan People's Hospital, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan, China
| | - Xi Huang
- National Clinical Research Center for Infectious Disease, Shenzhen Third People's Hospital, The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen
- Center for Infection and Immunity and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou
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Wu Y, Zhao S, Guo W, Liu Y, Requena Mullor MDM, Rodrìguez RA, Wei R. Systematic analysis of the prognostic value and immunological function of LTBR in human cancer. Aging (Albany NY) 2024; 16:129-152. [PMID: 38175686 PMCID: PMC10817409 DOI: 10.18632/aging.205356] [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] [Received: 04/12/2023] [Accepted: 11/15/2023] [Indexed: 01/05/2024]
Abstract
Lymphotoxin beta receptor (LTBR) is a positive T cell proliferation regulator gene. It is closely associated with the tumor immune microenvironment. However, its role in cancer and immunotherapy is unclear. Firstly, the expression level and prognostic value of LTBR were analyzed. Secondly, the expression of LTBR in clinical stages, immune subtypes, and molecular subtypes was analyzed. The correlation between LTBR and immune regulatory genes, immune checkpoint genes, and RNA modification genes was then analyzed. Correlations between LTBR and immune cells, scores, cancer-related functional status, tumor stemness index, mismatch repair (MMR) genes, and DNA methyltransferase were also analyzed. In addition, we analyzed the role of LTBR in DNA methylation, mutational status, tumor mutation burden (TMB), and microsatellite instability (MSI). Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG), and Gene Set Enrichment Analysis (GSEA) were used to explore the role of LTBR in pan-cancer. Finally, the drugs associated with LTBR were analyzed. The expression of LTBR was confirmed using quantitative real-time PCR and Western blot. LTBR is significantly overexpressed in most cancers and is associated with low patient survival. In addition, LTBR expression was strongly correlated with immune cells, score, cancer-related functional status, tumor stemness index, MMR genes, DNA methyltransferase, DNA methylation, mutational status, TMB, and MSI. Enrichment analysis revealed that LTBR was associated with apoptosis, necroptosis, and immune-related pathways. Finally, multiple drugs targeting LTBR were identified. LTBR is overexpressed in several tumors and is associated with a poor prognosis. It is related to immune-related genes and immune cell infiltration.
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Affiliation(s)
- Yinteng Wu
- Department of Orthopedic and Trauma Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Shijian Zhao
- Department of Cardiovascular Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Wenliang Guo
- Department of Rehabilitation Medicine, The Eighth Affiliated Hospital of Guangxi Medical University, Guigang, Guangxi 537100, China
| | - Ying Liu
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, China
| | | | | | - Ruqiong Wei
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, China
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Oien DB, Sharma S, Hattersley MM, DuPont M, Criscione SW, Prickett L, Goeppert AU, Drew L, Yao Y, Zhang J, Chan HM. BET inhibition targets ABC-DLBCL constitutive B-cell receptor signaling through PAX5. Blood Adv 2023; 7:5108-5121. [PMID: 37184294 PMCID: PMC10477446 DOI: 10.1182/bloodadvances.2022009257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 04/06/2023] [Accepted: 05/04/2023] [Indexed: 05/16/2023] Open
Abstract
B-cell receptor (BCR) signaling is essential for the diffuse large B-cell lymphoma (DLBCL) subtype that originates from activated B-cells (ABCs). ABC-DLBCL cells are sensitive to Bruton tyrosine kinase intervention. However, patients with relapsed or refractory ABC-DLBCL had overall response rates from 33% to 37% for Bruton tyrosine kinase inhibitors, suggesting the evaluation of combination-based treatment for improved efficacy. We investigated the efficacy and mechanism of the bromodomain and extraterminal motif (BET) inhibitor AZD5153 combined with the Bruton tyrosine kinase inhibitor acalabrutinib in ABC-DLBCL preclinical models. AZD5153 is a bivalent BET inhibitor that simultaneously engages the 2 bromodomains of BRD4. Adding AZD5153 to acalabrutinib demonstrated combination benefits in ABC-DLBCL cell line and patient-derived xenograft models. Differential expression analyses revealed PAX5 transcriptional activity as a novel downstream effector of this drug combination. PAX5 is a transcription factor for BCR signaling genes and may be critical for perpetually active BCR signaling in ABC-DLBCL. Our analyses further indicated significant alterations in BCR, RELB/alternative NF-κB, and toll-like receptor/interferon signaling. Validation of these results mapped a positive-feedback signaling loop regulated by PAX5. We demonstrated that AZD5153 decreased PAX5 expression, whereas acalabrutinib disruption of BCR signaling inhibited PAX5 activation. Furthermore, several interferon levels were decreased by AZD5153 and acalabrutinib in tumors. Adding interferon-beta1 (IFNβ1) to cells treated with acalabrutinib partially rescued PAX5 activation. Our results demonstrate that AZD5153 enhances the efficacy of acalabrutinib through PAX5 and BCR mechanisms that are critical for ABC-DLBCL.
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Affiliation(s)
- Derek B. Oien
- Research and Early Development, Oncology R&D, AstraZeneca, Boston, MA
| | - Samanta Sharma
- Research and Early Development, Oncology R&D, AstraZeneca, Boston, MA
| | | | - Michelle DuPont
- Research and Early Development, Oncology R&D, AstraZeneca, Boston, MA
| | | | - Laura Prickett
- Research and Early Development, Oncology R&D, AstraZeneca, Boston, MA
| | - Anne U. Goeppert
- Research and Early Development, Oncology R&D, AstraZeneca, Boston, MA
| | - Lisa Drew
- Research and Early Development, Oncology R&D, AstraZeneca, Boston, MA
| | - Yi Yao
- Research and Early Development, Oncology R&D, AstraZeneca, Boston, MA
| | - Jingwen Zhang
- Research and Early Development, Oncology R&D, AstraZeneca, Boston, MA
| | - Ho Man Chan
- Research and Early Development, Oncology R&D, AstraZeneca, Boston, MA
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Vashisht M, Ge H, John J, McKelvey HA, Chen J, Chen Z, Wang JH. TRAF2/3 deficient B cells resist DNA damage-induced apoptosis via NF-κB2/XIAP/cIAP2 axis and IAP antagonist sensitizes mutant lymphomas to chemotherapeutic drugs. Cell Death Dis 2023; 14:599. [PMID: 37679334 PMCID: PMC10485046 DOI: 10.1038/s41419-023-06122-2] [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: 11/13/2022] [Revised: 08/22/2023] [Accepted: 08/29/2023] [Indexed: 09/09/2023]
Abstract
Deletion of TRAF2 or TRAF3 in B cells prolongs their survival. However, it remains unknown whether deletion of such factors affects B cells' ability to tolerate DNA damage, which can be induced by chemotherapeutics and cause apoptosis. Genetic alterations of TRAF2 or TRAF3 are observed in subsets of human B-cell lymphomas and B cell-specific deletion of TRAF3 led to lymphoma development in aged mice. However, it remains unknown whether double deficiency of TRAF2 and TRAF3 accelerates B-cell lymphomagenesis. Here, we showed that B cell-specific TRAF2/3 double deficient (B-TRAF2/3-DKO) B cells were remarkably more resistant to DNA damage-induced apoptosis via upregulating cIAP2 and XIAP, which in turn attenuates caspase-3 activation. Mechanistically, resistance to DNA damage-induced apoptosis required NF-κB2, which effects by upregulating XIAP and cIAP2 transcription. B-TRAF2/3-DKO mice exhibited a shorter lifespan and succumbed to splenomegaly and lymphadenopathy. Unexpectedly, the incidence of B-cell lymphoma development in B-TRAF2/3-DKO mice was relatively rare (∼10%). Sequencing B cell receptor repertoire of diseased B cells revealed that TRAF2/3 deficiency caused abnormal oligoclonal or clonal expansion of B cells. While a fraction of mutant B cells (25-43%) from aged diseased mice harbored recurrent chromosomal translocations, primary B cells isolated from young B-TRAF2/3-DKO mice had no detectable chromosomal alterations, suggesting that TRAF2/3 deficiency per se does not cause evident genomic instability in B cells. Chemo-resistant TRAF3-deficient B-cell lymphomas were sensitized to chemotherapeutic drugs by blocking IAP activity using IAP antagonist. We conclude that double deficiency of TRAF2 and TRAF3 does not accelerate B-cell lymphomagenesis. Our studies provide insight into mechanisms regulating DNA damage-induced apoptosis and may help develop effective therapies targeting mutant B-cell lymphomas using IAP antagonist.
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Affiliation(s)
- Monika Vashisht
- UPMC Hillman Cancer Center, Division of Hematology and Oncology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, 15213, USA
| | - Huaibin Ge
- UPMC Hillman Cancer Center, Division of Hematology and Oncology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, 15213, USA
| | - Jessy John
- UPMC Hillman Cancer Center, Division of Hematology and Oncology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, 15213, USA
| | - Harlie A McKelvey
- UPMC Hillman Cancer Center, Division of Hematology and Oncology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, 15213, USA
| | - Jingxin Chen
- UPMC Hillman Cancer Center, Division of Hematology and Oncology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, 15213, USA
| | - Zhangguo Chen
- UPMC Hillman Cancer Center, Division of Hematology and Oncology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, 15213, USA.
| | - Jing H Wang
- UPMC Hillman Cancer Center, Division of Hematology and Oncology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, 15213, USA.
- Department of Immunology, University of Pittsburgh, Pittsburgh, PA, 15213, USA.
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Toyama T, Xu S, Kanemitsu Y, Hasegawa T, Noguchi T, Lee JY, Matsuzawa A, Naganuma A, Hwang GW. Methylmercury directly modifies the 105th cysteine residue in oncostatin M to promote binding to tumor necrosis factor receptor 3 and inhibit cell growth. Arch Toxicol 2023; 97:1887-1897. [PMID: 37193757 DOI: 10.1007/s00204-023-03520-5] [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: 03/17/2023] [Accepted: 05/11/2023] [Indexed: 05/18/2023]
Abstract
We previously found that methylmercury induces expression of oncostatin M (OSM), which is released extracellularly and binds to tumor necrosis factor receptor 3 (TNFR3), possibly enhancing its own toxicity. However, the mechanism by which methylmercury causes OSM to bind to TNFR3 rather than to its known receptors, OSM receptor and LIFR, is unknown. In this study, we aimed to elucidate the effect of methylmercury modification of cysteine residues in OSM on binding to TNFR3. Immunostaining of TNFR3-V5-expressing cells suggested that methylmercury promoted binding of OSM to TNFR3 on the cell membrane. In an in vitro binding assay, OSM directly bound to the extracellular domain of TNFR3, and this binding was promoted by methylmercury. Additionally, the formation of a disulfide bond in the OSM molecule was essential for the binding of both proteins, and LC/MS analysis revealed that methylmercury directly modified the 105th cysteine residue (Cys105) in OSM. Next, mutant OSM, in which Cys105 was replaced by serine or methionine, increased the binding to TNFR3, and a similar effect was observed in immunoprecipitation using cultured cells. Furthermore, cell proliferation was inhibited by treatment with Cys105 mutant OSMs compared with wildtype OSM, and this effect was cancelled by TNFR3 knockdown. In conclusion, we revealed a novel mechanism of methylmercury toxicity, in which methylmercury directly modifies Cys105 in OSM, thereby inhibiting cell proliferation via promoting binding to TNFR3. This indicates a chemical disruption in the interaction between the ligand and the receptor is a part of methylmercury toxicity.
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Affiliation(s)
- Takashi Toyama
- Laboratory of Molecular and Biochemical Toxicology, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi, 980-8578, Japan
| | - Sidi Xu
- Laboratory of Molecular and Biochemical Toxicology, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi, 980-8578, Japan
| | - Yoshitomi Kanemitsu
- Clinical and Translational Research Center, Niigata University Medical and Dental Hospital, 2-5274 Gakkochodori, Chuo-ku, Niigata, Niigata, 980-8574, Japan
| | - Takashi Hasegawa
- Laboratory of Molecular and Biochemical Toxicology, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi, 980-8578, Japan
| | - Takuya Noguchi
- Laboratory of Health Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi, 980-8578, Japan
| | - Jin-Yong Lee
- Laboratory of Pharmaceutical Health Sciences, School of Pharmacy, Aichi Gakuin University, 1-100 Kusumoto-cho, Chikusa-ku, Nagoya, 951-8514, Japan
| | - Atsushi Matsuzawa
- Laboratory of Health Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi, 980-8578, Japan
| | - Akira Naganuma
- Laboratory of Molecular and Biochemical Toxicology, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi, 980-8578, Japan
| | - Gi-Wook Hwang
- Laboratory of Molecular and Biochemical Toxicology, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi, 980-8578, Japan.
- Laboratory of Environmental and Health Sciences, Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai, Miyagi, 981-8558, Japan.
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Baranasic J, Niazi Y, Chattopadhyay S, Rumora L, Ćorak L, Dugac AV, Jakopović M, Samaržija M, Försti A, Knežević J. Germline variants of the genes involved in NF-kB activation are associated with the risk of COPD and lung cancer development. ACTA PHARMACEUTICA (ZAGREB, CROATIA) 2023; 73:243-256. [PMID: 37307368 DOI: 10.2478/acph-2023-0019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/09/2023] [Indexed: 06/14/2023]
Abstract
Chronic obstructive pulmonary disease (COPD) and lung cancer (LC) are closely related diseases associated with smoking history and dysregulated immune response. However, not all smokers develop the disease, indicating that genetic susceptibility could be important. Therefore, the aim of this study was to search for the potential overlapping genetic biomarkers, with a focus on single nucleotide polymorphisms (SNPs) located in the regulatory regions of immune-related genes. Additionally, the aim was to see if an identified SNP has potentially an effect on proinflamma-tory cytokine concentration in the serum of COPD patients. We extracted summary data of variants in 1511 immune-related genes from COPD and LC genome-wide association studies (GWAS) from the UK Biobank. The LC data had 203 cases, patients diagnosed with LC, and 360 938 controls, while COPD data had 1 897 cases and 359 297 controls. Assuming 1 association/gene, SNPs with a p-value < 3.3 × 10-5 were considered statistically significantly associated with the disease. We identified seven SNPs located in different genes (BAG6, BTNL2, TNF, HCP5, MICB, NCR3, ABCF1, TCF7L1) to be associated with the COPD risk and two with the LC risk (HLA-C, HLA-B), with statistical significance. We also identified two SNPs located in the IL2RA gene associated with LC (rs2386841; p = 1.86 × 10-4) and COPD (rs11256442; p = 9.79 × 10-3) but with lower significance. Functional studies conducted on COPD patients showed that RNA expression of IL2RA, IFNγ and related proinflammatory cytokines in blood serum did not correlate with a specific genotype. Although results presented in this study do not fully support our hypothesis, it is worth to mention that the identified genes/SNPs that were associated with either COPD or LC risk, all were involved in the activation of the NF-κB transcription factor which is closely related to the regulation of the inflammatory response, a condition associated with both pathologies.
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Affiliation(s)
- Jurica Baranasic
- 1Division of Molecular Medicine, Rudjer Boskovic Institute, Zagreb, Croatia
| | - Yasmeen Niazi
- 2Hopp Children's Cancer Center (KiTZ) Heidelberg, Germany
- 3Division of Pediatric Neurooncology German Cancer Research Center (DKFZ) German Cancer Consortium (DKTK) Heidelberg, Germany
| | - Subhayan Chattopadhyay
- 3Division of Pediatric Neurooncology German Cancer Research Center (DKFZ) German Cancer Consortium (DKTK) Heidelberg, Germany
- 4Departments of Clinical Genetics, Lund University, Lund, Sweden
| | - Lada Rumora
- 5Department of Medical Biochemistry and Hematology, Faculty of Pharmacy and Biochemistry, University of Zagreb Zagreb, Croatia
| | - Lorna Ćorak
- 6Clinical Department for Respiratory Diseases Jordanovac, University Hospital Zagreb, School of Medicine University of Zagreb, Zagreb, Croatia
| | - Andrea Vukić Dugac
- 6Clinical Department for Respiratory Diseases Jordanovac, University Hospital Zagreb, School of Medicine University of Zagreb, Zagreb, Croatia
| | - Marko Jakopović
- 6Clinical Department for Respiratory Diseases Jordanovac, University Hospital Zagreb, School of Medicine University of Zagreb, Zagreb, Croatia
| | - Miroslav Samaržija
- 6Clinical Department for Respiratory Diseases Jordanovac, University Hospital Zagreb, School of Medicine University of Zagreb, Zagreb, Croatia
| | - Asta Försti
- 2Hopp Children's Cancer Center (KiTZ) Heidelberg, Germany
- 3Division of Pediatric Neurooncology German Cancer Research Center (DKFZ) German Cancer Consortium (DKTK) Heidelberg, Germany
| | - Jelena Knežević
- 1Division of Molecular Medicine, Rudjer Boskovic Institute, Zagreb, Croatia
- 7Faculty of Dental Medicine and Health University of Osijek, Osijek, Croatia
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9
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Fu JR, Zhou J, Zhang YP, Liu L. Effects of Caulerpa taxifolia on Physiological Processes and Gene Expression of Acropora hyacinthus during Thermal Stress. BIOLOGY 2022; 11:biology11121792. [PMID: 36552301 PMCID: PMC9775474 DOI: 10.3390/biology11121792] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/06/2022] [Accepted: 12/07/2022] [Indexed: 12/14/2022]
Abstract
An increasing ecological phase shift from coral-dominated reefs to macroalgae-dominated reefs as a result of anthropogenic impacts, such as eutrophication, sedimentation, and overfishing, has been observed in many reef systems around the world. Ocean warming is a universal threat to both corals and macroalgae, which may alter the outcome of competition between them. Therefore, in order to explore the effects of indirect and direct exposure to macroalgae on the physiological, biochemical, and genetic expression of corals at elevated temperature, the coral Acropora hyacinthus and highly invasive green algae Caulerpa taxifolia were chosen. Physiologically, the results exhibited that, between the control and direct contact treatments, the density and chlorophyll a content of zooxanthella decreased by 53.1% and 71.2%, respectively, when the coral indirectly contacted with the algae at an ambient temperature (27 °C). Moreover, the enzyme activities of superoxide dismutase (SOD) and catalase (CAT) in coral tissue were enhanced by interacting with algae. After an increase of 3 °C, the density and chlorophyll a content of the zooxanthella reduced by 84.4% and 93.8%, respectively, whereas the enzyme activities of SOD and CAT increased 2.3- and 3.1-fold. However, only the zooxanthellae density and pigment content decreased when Caulerpa taxifolia was co-cultured with Acropora hyacinthus at 30 °C. Molecularly, different from the control group, the differentially expressed genes (DEGs) such as Rab family, ATG family, and Casp7 genes were significantly enriched in the endocytosis, autophagy, and apoptosis pathways, regardless of whether Acropora hyacinthus was directly or indirectly exposed to Caulerpa taxifolia at 27 °C. Under thermal stress without algae interaction, the DEGs were significantly enriched in the microbial immune signal transduction pathways, such as the Toll-like receptor signaling pathway and TNF signaling pathway, while multiple cellular immunity (IFI47, TRAF family) and oxidative stress (CAT, SODC, HSP70) genes were upregulated. Inversely, compared with corals without interaction with algae at 30 °C, the DEGs of the corals that interacted with Caulerpa taxifolia at 30 °C were remarkably enriched in apoptosis and the NOD-like receptor signaling pathway, including the transcription factors such as the Casp family and TRAF family. In conclusion, the density and chlorophyll a content of zooxanthella maintained a fading tendency induced by the macroalgae at ambient temperatures. The oxidative stress and immune response levels of the coral was elevated at 30 °C, but the macroalgae alleviated the negative effects triggered by thermal stress.
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Affiliation(s)
- Jian-Rong Fu
- Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China
| | - Jie Zhou
- Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China
| | - Yan-Ping Zhang
- Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China
| | - Li Liu
- Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China
- Guangdong Laboratory of Southern Ocean Science and Engineering, Zhanjiang 524025, China
- Correspondence:
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10
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Liu L, Khan A, Sanchez-Rodriguez E, Zanoni F, Li Y, Steers N, Balderes O, Zhang J, Krithivasan P, LeDesma RA, Fischman C, Hebbring SJ, Harley JB, Moncrieffe H, Kottyan LC, Namjou-Khales B, Walunas TL, Knevel R, Raychaudhuri S, Karlson EW, Denny JC, Stanaway IB, Crosslin D, Rauen T, Floege J, Eitner F, Moldoveanu Z, Reily C, Knoppova B, Hall S, Sheff JT, Julian BA, Wyatt RJ, Suzuki H, Xie J, Chen N, Zhou X, Zhang H, Hammarström L, Viktorin A, Magnusson PKE, Shang N, Hripcsak G, Weng C, Rundek T, Elkind MSV, Oelsner EC, Barr RG, Ionita-Laza I, Novak J, Gharavi AG, Kiryluk K. Genetic regulation of serum IgA levels and susceptibility to common immune, infectious, kidney, and cardio-metabolic traits. Nat Commun 2022; 13:6859. [PMID: 36369178 PMCID: PMC9651905 DOI: 10.1038/s41467-022-34456-6] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 10/25/2022] [Indexed: 11/13/2022] Open
Abstract
Immunoglobulin A (IgA) mediates mucosal responses to food antigens and the intestinal microbiome and is involved in susceptibility to mucosal pathogens, celiac disease, inflammatory bowel disease, and IgA nephropathy. We performed a genome-wide association study of serum IgA levels in 41,263 individuals of diverse ancestries and identified 20 genome-wide significant loci, including 9 known and 11 novel loci. Co-localization analyses with expression QTLs prioritized candidate genes for 14 of 20 significant loci. Most loci encoded genes that produced immune defects and IgA abnormalities when genetically manipulated in mice. We also observed positive genetic correlations of serum IgA levels with IgA nephropathy, type 2 diabetes, and body mass index, and negative correlations with celiac disease, inflammatory bowel disease, and several infections. Mendelian randomization supported elevated serum IgA as a causal factor in IgA nephropathy. African ancestry was consistently associated with higher serum IgA levels and greater frequency of IgA-increasing alleles compared to other ancestries. Our findings provide novel insights into the genetic regulation of IgA levels and its potential role in human disease.
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Affiliation(s)
- Lili Liu
- grid.21729.3f0000000419368729Division of Nephrology, Department of Medicine, Vagelos College of Physicians & Surgeons, Columbia University, New York, NY USA
| | - Atlas Khan
- grid.21729.3f0000000419368729Division of Nephrology, Department of Medicine, Vagelos College of Physicians & Surgeons, Columbia University, New York, NY USA
| | - Elena Sanchez-Rodriguez
- grid.21729.3f0000000419368729Division of Nephrology, Department of Medicine, Vagelos College of Physicians & Surgeons, Columbia University, New York, NY USA
| | - Francesca Zanoni
- grid.21729.3f0000000419368729Division of Nephrology, Department of Medicine, Vagelos College of Physicians & Surgeons, Columbia University, New York, NY USA
| | - Yifu Li
- grid.21729.3f0000000419368729Division of Nephrology, Department of Medicine, Vagelos College of Physicians & Surgeons, Columbia University, New York, NY USA
| | - Nicholas Steers
- grid.21729.3f0000000419368729Division of Nephrology, Department of Medicine, Vagelos College of Physicians & Surgeons, Columbia University, New York, NY USA
| | - Olivia Balderes
- grid.21729.3f0000000419368729Division of Nephrology, Department of Medicine, Vagelos College of Physicians & Surgeons, Columbia University, New York, NY USA
| | - Junying Zhang
- grid.21729.3f0000000419368729Division of Nephrology, Department of Medicine, Vagelos College of Physicians & Surgeons, Columbia University, New York, NY USA
| | - Priya Krithivasan
- grid.21729.3f0000000419368729Division of Nephrology, Department of Medicine, Vagelos College of Physicians & Surgeons, Columbia University, New York, NY USA
| | - Robert A. LeDesma
- grid.16750.350000 0001 2097 5006Lewis Thomas Laboratory, Department of Molecular Biology, Princeton University, Princeton, NJ USA
| | - Clara Fischman
- grid.25879.310000 0004 1936 8972Department of Medicine, University of Pennsylvania, Philadelphia, PA USA
| | - Scott J. Hebbring
- grid.280718.40000 0000 9274 7048Center for Human Genetics, Marshfield Clinic Research Institute, Marshfield, WI USA
| | - John B. Harley
- grid.239573.90000 0000 9025 8099Center of Autoimmune Genomics and Etiology, Cincinnati Children’s Hospital, Cincinnati, OH USA ,grid.24827.3b0000 0001 2179 9593Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH USA ,grid.413848.20000 0004 0420 2128US Department of Veterans Affairs Medical Center, Cincinnati, OH USA
| | - Halima Moncrieffe
- grid.239573.90000 0000 9025 8099Center of Autoimmune Genomics and Etiology, Cincinnati Children’s Hospital, Cincinnati, OH USA ,grid.24827.3b0000 0001 2179 9593Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH USA
| | - Leah C. Kottyan
- grid.239573.90000 0000 9025 8099Center of Autoimmune Genomics and Etiology, Cincinnati Children’s Hospital, Cincinnati, OH USA ,grid.24827.3b0000 0001 2179 9593Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH USA
| | - Bahram Namjou-Khales
- grid.239573.90000 0000 9025 8099Center of Autoimmune Genomics and Etiology, Cincinnati Children’s Hospital, Cincinnati, OH USA ,grid.24827.3b0000 0001 2179 9593Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH USA
| | - Theresa L. Walunas
- grid.16753.360000 0001 2299 3507Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL USA
| | - Rachel Knevel
- grid.62560.370000 0004 0378 8294Division of Rheumatology, Immunology and Allergy, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA USA
| | - Soumya Raychaudhuri
- grid.62560.370000 0004 0378 8294Division of Rheumatology, Immunology and Allergy, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA USA
| | - Elizabeth W. Karlson
- grid.62560.370000 0004 0378 8294Division of Rheumatology, Immunology and Allergy, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA USA
| | - Joshua C. Denny
- grid.152326.10000 0001 2264 7217Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN USA
| | - Ian B. Stanaway
- grid.34477.330000000122986657Kidney Research Institute, Division of Nephrology, Department of Medicine, University of Washington, Seattle, WA USA
| | - David Crosslin
- grid.34477.330000000122986657Department of Biomedical Informatics and Medical Education, School of Medicine, University of Washington, Seattle, WA USA
| | - Thomas Rauen
- grid.1957.a0000 0001 0728 696XDepartment of Nephrology, RWTH University of Aachen, Aachen, Germany
| | - Jürgen Floege
- grid.1957.a0000 0001 0728 696XDepartment of Nephrology, RWTH University of Aachen, Aachen, Germany
| | - Frank Eitner
- grid.1957.a0000 0001 0728 696XDepartment of Nephrology, RWTH University of Aachen, Aachen, Germany ,grid.420044.60000 0004 0374 4101Kidney Diseases Research, Bayer Pharma AG, Wuppertal, Germany
| | - Zina Moldoveanu
- grid.265892.20000000106344187Department of Microbiology and Medicine, University of Alabama at Birmingham, Birmingham, AL USA
| | - Colin Reily
- grid.265892.20000000106344187Department of Microbiology and Medicine, University of Alabama at Birmingham, Birmingham, AL USA
| | - Barbora Knoppova
- grid.265892.20000000106344187Department of Microbiology and Medicine, University of Alabama at Birmingham, Birmingham, AL USA
| | - Stacy Hall
- grid.265892.20000000106344187Department of Microbiology and Medicine, University of Alabama at Birmingham, Birmingham, AL USA
| | - Justin T. Sheff
- grid.265892.20000000106344187Department of Microbiology and Medicine, University of Alabama at Birmingham, Birmingham, AL USA
| | - Bruce A. Julian
- grid.265892.20000000106344187Department of Microbiology and Medicine, University of Alabama at Birmingham, Birmingham, AL USA
| | - Robert J. Wyatt
- grid.267301.10000 0004 0386 9246Division of Pediatric Nephrology, University of Tennessee Health Sciences Center, Memphis, TN USA
| | - Hitoshi Suzuki
- grid.258269.20000 0004 1762 2738Department of Nephrology, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Jingyuan Xie
- grid.16821.3c0000 0004 0368 8293Department of Nephrology, Institute of Nephrology, Shanghai Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Nan Chen
- grid.16821.3c0000 0004 0368 8293Department of Nephrology, Institute of Nephrology, Shanghai Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xujie Zhou
- grid.11135.370000 0001 2256 9319Renal Division, Peking University First Hospital, Peking University Institute of Nephrology, Beijing, China
| | - Hong Zhang
- grid.11135.370000 0001 2256 9319Renal Division, Peking University First Hospital, Peking University Institute of Nephrology, Beijing, China
| | - Lennart Hammarström
- grid.4714.60000 0004 1937 0626Department of Biosciences and Nutrition, Karolinska Institutet, Stockholm, Sweden
| | - Alexander Viktorin
- grid.4714.60000 0004 1937 0626Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Patrik K. E. Magnusson
- grid.4714.60000 0004 1937 0626Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Ning Shang
- grid.21729.3f0000000419368729Department of Biomedical Informatics, Vagelos College of Physicians & Surgeons, Columbia University, New York, NY USA
| | - George Hripcsak
- grid.21729.3f0000000419368729Department of Biomedical Informatics, Vagelos College of Physicians & Surgeons, Columbia University, New York, NY USA
| | - Chunhua Weng
- grid.21729.3f0000000419368729Department of Biomedical Informatics, Vagelos College of Physicians & Surgeons, Columbia University, New York, NY USA
| | - Tatjana Rundek
- grid.26790.3a0000 0004 1936 8606Department of Neurology, University of Miami, Miami, FL USA ,grid.26790.3a0000 0004 1936 8606Evelyn F. McKnight Brain Institute, University of Miami, Miami, FL USA
| | - Mitchell S. V. Elkind
- grid.21729.3f0000000419368729Department of Neurology, Vagelos College of Physicians & Surgeons, Columbia University, New York, NY USA
| | - Elizabeth C. Oelsner
- grid.21729.3f0000000419368729Division of Nephrology, Department of Medicine, Vagelos College of Physicians & Surgeons, Columbia University, New York, NY USA
| | - R. Graham Barr
- grid.21729.3f0000000419368729Division of General Medicine, Department of Medicine, Vagelos College of Physicians & Surgeons, Columbia University, New York, NY USA ,grid.21729.3f0000000419368729Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY USA
| | - Iuliana Ionita-Laza
- grid.21729.3f0000000419368729Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, NY USA
| | - Jan Novak
- grid.265892.20000000106344187Department of Microbiology and Medicine, University of Alabama at Birmingham, Birmingham, AL USA
| | - Ali G. Gharavi
- grid.21729.3f0000000419368729Division of Nephrology, Department of Medicine, Vagelos College of Physicians & Surgeons, Columbia University, New York, NY USA
| | - Krzysztof Kiryluk
- Division of Nephrology, Department of Medicine, Vagelos College of Physicians & Surgeons, Columbia University, New York, NY, USA.
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11
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Rybova J, Kuchar L, Sikora J, McKillop WM, Medin JA. Skin inflammation and impaired adipogenesis in a mouse model of acid ceramidase deficiency. J Inherit Metab Dis 2022; 45:1175-1190. [PMID: 36083604 PMCID: PMC9826362 DOI: 10.1002/jimd.12552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 08/29/2022] [Accepted: 09/06/2022] [Indexed: 01/11/2023]
Abstract
Acid ceramidase catalyzes the degradation of ceramide into sphingosine and a free fatty acid. Acid ceramidase deficiency results in lipid accumulation in many tissues and leads to the development of Farber disease (FD). Typical manifestations of classical FD include formation of subcutaneous nodules and joint contractures as well as the development of a hoarse voice. Healthy skin depends on a unique lipid profile to form a barrier that confers protection from pathogens, prevents excessive water loss, and mediates cell-cell communication. Ceramides comprise ~50% of total epidermis lipids and regulate cutaneous homeostasis and inflammation. Abnormal skin development including visual skin lesions has been reported in FD patients, but a detailed study of FD skin has not been performed. We conducted a pathophysiological study of the skin in our mouse model of FD. We observed altered lipid composition in FD skin dominated by accumulation of all studied ceramide species and buildup of abnormal storage structures affecting mainly the dermis. A deficiency of acid ceramidase activity also led to the activation of inflammatory IL-6/JAK/signal transducer and activator of transcription 3 and noncanonical NF-κB signaling pathways. Last, we report reduced proliferation of FD mouse fibroblasts and adipose-derived stem/stromal cells (ASC) along with impaired differentiation of ASCs into mature adipocytes.
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Affiliation(s)
- Jitka Rybova
- Departments of Pediatrics and BiochemistryMedical College of WisconsinMilwaukeeWisconsinUSA
| | - Ladislav Kuchar
- Rare Diseases Research Unit, Department of Pediatrics and Inherited Metabolic DisordersCharles University, 1st Faculty of Medicine and General University HospitalPragueCzech Republic
| | - Jakub Sikora
- Rare Diseases Research Unit, Department of Pediatrics and Inherited Metabolic DisordersCharles University, 1st Faculty of Medicine and General University HospitalPragueCzech Republic
- Institute of PathologyCharles University, 1st Faculty of Medicine and General University HospitalPragueCzech Republic
| | - William M. McKillop
- Departments of Pediatrics and BiochemistryMedical College of WisconsinMilwaukeeWisconsinUSA
| | - Jeffrey A. Medin
- Departments of Pediatrics and BiochemistryMedical College of WisconsinMilwaukeeWisconsinUSA
- Department of BiochemistryMedical College of WisconsinMilwaukeeWisconsinUSA
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12
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Haselager MV, Eldering E. The Therapeutic Potential of Targeting NIK in B Cell Malignancies. Front Immunol 2022; 13:930986. [PMID: 35911754 PMCID: PMC9326486 DOI: 10.3389/fimmu.2022.930986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 06/08/2022] [Indexed: 11/24/2022] Open
Abstract
NF-κB-inducing kinase (NIK) is a key player in non-canonical NF-κB signaling, involved in several fundamental cellular processes, and is crucial for B cell function and development. In response to certain signals and ligands, such as CD40, BAFF and lymphotoxin-β activation, NIK protein stabilization and subsequent NF-κB activation is achieved. Overexpression or overactivation of NIK is associated with several malignancies, including activating mutations in multiple myeloma (MM) and gain-of-function in MALT lymphoma as a result of post-translational modifications. Consequently, drug discovery studies are devoted to pharmacologic modulation of NIK and development of specific novel small molecule inhibitors. However, disease-specific in vitro and in vivo studies investigating NIK inhibition are as of yet lacking, and clinical trials with NIK inhibitors remain to be initiated. In order to bridge the gap between bench and bedside, this review first briefly summarizes our current knowledge on NIK activation, functional activity and stability. Secondly, we compare current inhibitors targeting NIK based on efficacy and specificity, and provide a future perspective on the therapeutic potential of NIK inhibition in B cell malignancies.
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Affiliation(s)
- Marco V. Haselager
- Department of Experimental Immunology, Amsterdam University Medical Center, Amsterdam, Netherlands
- Lymphoma and Myeloma Center Amsterdam, Lymphoma and Myeloma Center Amsterdam, Amsterdam, Netherlands
- Cancer Center Amsterdam, Cancer Immunology, Amsterdam, Netherlands
- Amsterdam Institute for Infection and Immunity, Cancer Immunology, Amsterdam, Netherlands
| | - Eric Eldering
- Department of Experimental Immunology, Amsterdam University Medical Center, Amsterdam, Netherlands
- Lymphoma and Myeloma Center Amsterdam, Lymphoma and Myeloma Center Amsterdam, Amsterdam, Netherlands
- Cancer Center Amsterdam, Cancer Immunology, Amsterdam, Netherlands
- Amsterdam Institute for Infection and Immunity, Cancer Immunology, Amsterdam, Netherlands
- *Correspondence: Eric Eldering,
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13
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Molecular Signature of Neuroinflammation Induced in Cytokine-Stimulated Human Cortical Spheroids. Biomedicines 2022; 10:biomedicines10051025. [PMID: 35625761 PMCID: PMC9138619 DOI: 10.3390/biomedicines10051025] [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: 03/24/2022] [Revised: 04/22/2022] [Accepted: 04/25/2022] [Indexed: 12/04/2022] Open
Abstract
Crucial in the pathogenesis of neurodegenerative diseases is the process of neuroinflammation that is often linked to the pro-inflammatory cytokines Tumor necrosis factor alpha (TNFα) and Interleukin-1beta (IL-1β). Human cortical spheroids (hCSs) constitute a valuable tool to study the molecular mechanisms underlying neurological diseases in a complex three-dimensional context. We recently designed a protocol to generate hCSs comprising all major brain cell types. Here we stimulate these hCSs for three time periods with TNFα and with IL-1β. Transcriptomic analysis reveals that the main process induced in the TNFα- as well as in the IL-1β-stimulated hCSs is neuroinflammation. Central in the neuroinflammatory response are endothelial cells, microglia and astrocytes, and dysregulated genes encoding cytokines, chemokines and their receptors, and downstream NFκB- and STAT-pathway components. Furthermore, we observe sets of neuroinflammation-related genes that are specifically modulated in the TNFα-stimulated and in the IL-1β-stimulated hCSs. Together, our results help to molecularly understand human neuroinflammation and thus a key mechanism of neurodegeneration.
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14
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Murphy CE, Walker AK, Weickert CS. Neuroinflammation in schizophrenia: the role of nuclear factor kappa B. Transl Psychiatry 2021; 11:528. [PMID: 34650030 PMCID: PMC8516884 DOI: 10.1038/s41398-021-01607-0] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 08/22/2021] [Accepted: 09/03/2021] [Indexed: 12/12/2022] Open
Abstract
Neuroinflammation, particularly in the dorsolateral prefrontal cortex, is well-established in a subset of people with schizophrenia, with significant increases in inflammatory markers including several cytokines. Yet the cause(s) of cortical inflammation in schizophrenia remains unknown. Clues as to potential microenvironmental triggers and/or intracellular deficits in immunoregulation may be gleaned from looking further upstream of effector immune molecules to transcription factors that control inflammatory gene expression. Here, we focus on the 'master immune regulator' nuclear factor kappa B (NF-κB) and review evidence in support of NF-κB dysregulation causing or contributing to neuroinflammation in patients. We discuss the utility of 'immune biotyping' as a tool to analyse immune-related transcripts and proteins in patient tissue, and the insights into cortical NF-κB in schizophrenia revealed by immune biotyping compared to studies treating patients as a single, homogenous group. Though the ubiquitous nature of NF-κB presents several hurdles for drug development, targeting this key immunoregulator with novel or repurposed therapeutics in schizophrenia is a relatively underexplored area that could aid in reducing symptoms of patients with active neuroinflammation.
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Affiliation(s)
- Caitlin E. Murphy
- grid.250407.40000 0000 8900 8842Neuroscience Research Australia, Randwick, NSW 2031 Australia
| | - Adam K. Walker
- grid.250407.40000 0000 8900 8842Neuroscience Research Australia, Randwick, NSW 2031 Australia ,grid.1005.40000 0004 4902 0432School of Psychiatry, University of New South Wales, Randwick, NSW 2031 Australia ,grid.1002.30000 0004 1936 7857Drug Discovery Biology Theme, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052 Australia
| | - Cynthia Shannon Weickert
- Neuroscience Research Australia, Randwick, NSW, 2031, Australia. .,School of Psychiatry, University of New South Wales, Randwick, NSW, 2031, Australia. .,Department of Neuroscience and Physiology, Upstate Medical University, Syracuse, NY, 13210, USA.
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15
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Aoyama S, Nakagawa R, Mulé JJ, Mailloux AW. Inducible Tertiary Lymphoid Structures: Promise and Challenges for Translating a New Class of Immunotherapy. Front Immunol 2021; 12:675538. [PMID: 34054863 PMCID: PMC8160316 DOI: 10.3389/fimmu.2021.675538] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 04/27/2021] [Indexed: 12/12/2022] Open
Abstract
Tertiary lymphoid structures (TLS) are ectopically formed aggregates of organized lymphocytes and antigen-presenting cells that occur in solid tissues as part of a chronic inflammation response. Sharing structural and functional characteristics with conventional secondary lymphoid organs (SLO) including discrete T cell zones, B cell zones, marginal zones with antigen presenting cells, reticular stromal networks, and high endothelial venues (HEV), TLS are prominent centers of antigen presentation and adaptive immune activation within the periphery. TLS share many signaling axes and leukocyte recruitment schemes with SLO regarding their formation and function. In cancer, their presence confers positive prognostic value across a wide spectrum of indications, spurring interest in their artificial induction as either a new form of immunotherapy, or as a means to augment other cell or immunotherapies. Here, we review approaches for inducible (iTLS) that utilize chemokines, inflammatory factors, or cellular analogues vital to TLS formation and that often mirror conventional SLO organogenesis. This review also addresses biomaterials that have been or might be suitable for iTLS, and discusses remaining challenges facing iTLS manufacturing approaches for clinical translation.
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Affiliation(s)
- Shota Aoyama
- Department of Surgery, Institute of Gastroenterology, Tokyo Women’s Medical University, Tokyo, Japan
| | - Ryosuke Nakagawa
- Department of Surgery, Institute of Gastroenterology, Tokyo Women’s Medical University, Tokyo, Japan
| | - James J. Mulé
- Immunology Program, Moffitt Cancer Center, Tampa, FL, United States
- Cutaneous Oncology Program, Moffitt Cancer Center, Tampa, FL, United States
| | - Adam W. Mailloux
- Department of Microbiology and Immunology, University of Iowa, Iowa City, IA, United States
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16
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Riffelmacher T, Giles DA, Zahner S, Dicker M, Andreyev AY, McArdle S, Perez-Jeldres T, van der Gracht E, Murray MP, Hartmann N, Tumanov AV, Kronenberg M. Metabolic activation and colitis pathogenesis is prevented by lymphotoxin β receptor expression in neutrophils. Mucosal Immunol 2021; 14:679-690. [PMID: 33568785 PMCID: PMC8075978 DOI: 10.1038/s41385-021-00378-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 12/09/2020] [Accepted: 12/30/2020] [Indexed: 02/04/2023]
Abstract
Inflammatory bowel disease is characterized by an exacerbated intestinal immune response, but the critical mechanisms regulating immune activation remain incompletely understood. We previously reported that the TNF-superfamily molecule TNFSF14 (LIGHT) is required for preventing severe disease in mouse models of colitis. In addition, deletion of lymphotoxin beta receptor (LTβR), which binds LIGHT, also led to aggravated colitis pathogenesis. Here, we aimed to determine the cell type(s) requiring LTβR and the mechanism critical for exacerbation of colitis. Specific deletion of LTβR in neutrophils (LTβRΔN), but not in several other cell types, was sufficient to induce aggravated colitis and colonic neutrophil accumulation. Mechanistically, RNA-Seq analysis revealed LIGHT-induced suppression of cellular metabolism, and mitochondrial function, that was dependent on LTβR. Functional studies confirmed increased mitochondrial mass and activity, associated with excessive mitochondrial ROS production and elevated glycolysis at steady-state and during colitis. Targeting these metabolic changes rescued exacerbated disease severity. Our results demonstrate that LIGHT signals to LTβR on neutrophils to suppress metabolic activation and thereby prevents exacerbated immune pathogenesis during colitis.
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Affiliation(s)
- Thomas Riffelmacher
- La Jolla Institute for Immunology, La Jolla, CA, USA
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
| | | | - Sonja Zahner
- La Jolla Institute for Immunology, La Jolla, CA, USA
| | | | - Alexander Y Andreyev
- Department of Pharmacology, University of California San Diego, La Jolla, CA, USA
| | - Sara McArdle
- La Jolla Institute for Immunology, La Jolla, CA, USA
| | | | | | | | | | - Alexei V Tumanov
- Department of Microbiology, Immunology and Molecular Genetics, University of Texas Health Science Center San Antonio, San Antonio, USA
| | - Mitchell Kronenberg
- La Jolla Institute for Immunology, La Jolla, CA, USA.
- Division of Biological Sciences, University of California San Diego, La Jolla, CA, USA.
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17
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Gu SS, Zhang W, Wang X, Jiang P, Traugh N, Li Z, Meyer C, Stewig B, Xie Y, Bu X, Manos MP, Font-Tello A, Gjini E, Lako A, Lim K, Conway J, Tewari AK, Zeng Z, Sahu AD, Tokheim C, Weirather JL, Fu J, Zhang Y, Kroger B, Liang JH, Cejas P, Freeman GJ, Rodig S, Long HW, Gewurz BE, Hodi FS, Brown M, Liu XS. Therapeutically Increasing MHC-I Expression Potentiates Immune Checkpoint Blockade. Cancer Discov 2021; 11:1524-1541. [PMID: 33589424 DOI: 10.1158/2159-8290.cd-20-0812] [Citation(s) in RCA: 107] [Impact Index Per Article: 35.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Revised: 11/13/2020] [Accepted: 01/13/2021] [Indexed: 11/16/2022]
Abstract
Immune checkpoint blockade (ICB) therapy revolutionized cancer treatment, but many patients with impaired MHC-I expression remain refractory. Here, we combined FACS-based genome-wide CRISPR screens with a data-mining approach to identify drugs that can upregulate MHC-I without inducing PD-L1. CRISPR screening identified TRAF3, a suppressor of the NFκB pathway, as a negative regulator of MHC-I but not PD-L1. The Traf3-knockout gene expression signature is associated with better survival in ICB-naïve patients with cancer and better ICB response. We then screened for drugs with similar transcriptional effects as this signature and identified Second Mitochondria-derived Activator of Caspase (SMAC) mimetics. We experimentally validated that the SMAC mimetic birinapant upregulates MHC-I, sensitizes cancer cells to T cell-dependent killing, and adds to ICB efficacy. Our findings provide preclinical rationale for treating tumors expressing low MHC-I expression with SMAC mimetics to enhance sensitivity to immunotherapy. The approach used in this study can be generalized to identify other drugs that enhance immunotherapy efficacy. SIGNIFICANCE: MHC-I loss or downregulation in cancer cells is a major mechanism of resistance to T cell-based immunotherapies. Our study reveals that birinapant may be used for patients with low baseline MHC-I to enhance ICB response. This represents promising immunotherapy opportunities given the biosafety profile of birinapant from multiple clinical trials.This article is highlighted in the In This Issue feature, p. 1307.
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Affiliation(s)
- Shengqing Stan Gu
- Department of Data Science, Dana-Farber Cancer Institute, Boston, Massachusetts.,Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Wubing Zhang
- Department of Data Science, Dana-Farber Cancer Institute, Boston, Massachusetts.,School of Life Science and Technology, Tongji University, Shanghai, China
| | - Xiaoqing Wang
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Peng Jiang
- Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Nicole Traugh
- Department of Data Science, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Ziyi Li
- Department of Data Science, Dana-Farber Cancer Institute, Boston, Massachusetts.,School of Life Science and Technology, Tongji University, Shanghai, China
| | - Clifford Meyer
- Department of Data Science, Dana-Farber Cancer Institute, Boston, Massachusetts.,Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Blair Stewig
- Department of Data Science, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Yingtian Xie
- Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Xia Bu
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Michael P Manos
- Center for Immuno-Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Alba Font-Tello
- Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Evisa Gjini
- Center for Immuno-Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Ana Lako
- Center for Immuno-Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Klothilda Lim
- Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Jake Conway
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Alok K Tewari
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Zexian Zeng
- Department of Data Science, Dana-Farber Cancer Institute, Boston, Massachusetts.,Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Avinash Das Sahu
- Department of Data Science, Dana-Farber Cancer Institute, Boston, Massachusetts.,Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Collin Tokheim
- Department of Data Science, Dana-Farber Cancer Institute, Boston, Massachusetts.,Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Jason L Weirather
- Department of Data Science, Dana-Farber Cancer Institute, Boston, Massachusetts.,Center for Immuno-Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Jingxin Fu
- Department of Data Science, Dana-Farber Cancer Institute, Boston, Massachusetts.,School of Life Science and Technology, Tongji University, Shanghai, China
| | - Yi Zhang
- Department of Data Science, Dana-Farber Cancer Institute, Boston, Massachusetts.,Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Benjamin Kroger
- The University of Texas Southwestern Medical School, Dallas, Texas
| | - Jin Hua Liang
- Department of Microbiology, Harvard Medical School, Boston, Massachusetts.,Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts
| | - Paloma Cejas
- Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Gordon J Freeman
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Scott Rodig
- Department of Pathologic Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Henry W Long
- Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Benjamin E Gewurz
- Department of Microbiology, Harvard Medical School, Boston, Massachusetts.,Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts
| | - F Stephen Hodi
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts.,Center for Immuno-Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Myles Brown
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts. .,Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - X Shirley Liu
- Department of Data Science, Dana-Farber Cancer Institute, Boston, Massachusetts. .,Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, Massachusetts.,Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, Massachusetts
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18
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Zhou W, Lin D, Zhong Z, Ye Q. Roles of TRAFs in Ischemia-Reperfusion Injury. Front Cell Dev Biol 2020; 8:586487. [PMID: 33224951 PMCID: PMC7674171 DOI: 10.3389/fcell.2020.586487] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 10/05/2020] [Indexed: 12/13/2022] Open
Abstract
Tumor necrosis factor receptor-associated factor (TRAF) proteins are a family of signaling molecules that function downstream of multiple receptor signaling pathways, and they play a pivotal role in the regulation of intracellular biological progresses. These TRAF-dependent signaling pathways and physiological functions have been involved in the occurrence and progression of ischemia-reperfusion injury (IRI), which is a common pathophysiological process that occurs in a wide variety of clinical events, including ischemic shock, organ transplantation, and thrombolytic therapy, resulting in a poor prognosis and high mortality. IRI occurs in multiple organs, including liver, kidney, heart, lung, brain, intestine, and retina. In recent years, mounting compelling evidence has confirmed that the genetic alterations of TRAFs can cause subversive phenotype changes during IRI of those organs. In this review, based on current knowledge, we summarized and analyzed the regulatory effect of TRAFs on the IRI of various organs, providing clear direction and a firm theoretical basis for the development of treatment strategies to manipulate TRAF proteins or TRAF-dependent signaling pathways in IRI-related diseases.
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Affiliation(s)
- Wei Zhou
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, Hubei Key Laboratory of Medical Technology on Transplantation, Engineering Research Center of Natural Polymer-based Medical Materials in Hubei Province, Wuhan, China
| | - Danni Lin
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, Hubei Key Laboratory of Medical Technology on Transplantation, Engineering Research Center of Natural Polymer-based Medical Materials in Hubei Province, Wuhan, China.,The First Affiliated Hospital, Zhejiang University School of Medicine, Department of Hepatobiliary and Pancreatic Surgery, Zhejiang Provincial Key Laboratory of Pancreatic Disease, Innovation Center for the Study of Pancreatic Diseases, Hangzhou, China
| | - Zibiao Zhong
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, Hubei Key Laboratory of Medical Technology on Transplantation, Engineering Research Center of Natural Polymer-based Medical Materials in Hubei Province, Wuhan, China
| | - Qifa Ye
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, Hubei Key Laboratory of Medical Technology on Transplantation, Engineering Research Center of Natural Polymer-based Medical Materials in Hubei Province, Wuhan, China.,The Third Xiangya Hospital of Central South University, Research Center of National Health Ministry on Transplantation Medicine Engineering and Technology, Changsha, China
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19
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Rastogi M, Singh SK. Japanese Encephalitis Virus exploits microRNA-155 to suppress the non-canonical NF-κB pathway in human microglial cells. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2020; 1863:194639. [PMID: 32987149 DOI: 10.1016/j.bbagrm.2020.194639] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 07/05/2020] [Accepted: 09/22/2020] [Indexed: 12/22/2022]
Abstract
Japanese Encephalitis Virus (JEV) is a single positive strand RNA virus, belongs to the Flaviviridae family. JEV is neurotropic in nature which accounts for 30-50% neurological, psychiatric sequelae and movement disorder, with 20-30% case fatality rate among children or elder population. JEV causes neuronal loss and microglial activation which leads to neuroinflammation. The microRNAs are the molecular switches, which regulate the gene expression post-transcriptionally. The microRNA-155 has been reported to be associated with CNS-related pathologies like, experimental autoimmune encephalitis, multiple sclerosis and amyotrophic lateral sclerosis. In the present study, we infected microglial cells with JEV, which resulted in the up-regulation of microRNA-155; quantified by real-time polymerase chain reaction. The gene target prediction databases revealed pellino 1 as a putative gene target for microRNA-155. The over-expression based studies of microRNA-155 mimics, scrambles, inhibitors, and cy3 negative control demonstrated the role of PELI1 in the regulation of the non-canonical NF-κB pathway via TRAF3. The luciferase assay showed the regulation of NF-κB promoter via microRNA-155 in JEV infected microglial cells. The suppression of NF-κB in JEV infected microglial cells led to the reduced expression of IL-6 and TNF-α. JEV exploits cellular microRNA-155 to suppress the expression of PELI1 in human microglial cells as a part of their immune evasion strategy.
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Affiliation(s)
- Meghana Rastogi
- Molecular Biology Unit, Faculty of Medicine, Institute of Medical Sciences, Banaras Hindu University, Varanasi, U.P., India
| | - Sunit Kumar Singh
- Molecular Biology Unit, Faculty of Medicine, Institute of Medical Sciences, Banaras Hindu University, Varanasi, U.P., India.
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20
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Chen X, Zheng Y, Li X, Gao Q, Feng T, Zhang P, Liao M, Tian X, Lu H, Zeng W. Profiling of miRNAs in porcine Sertoli cells. J Anim Sci Biotechnol 2020; 11:85. [PMID: 32821380 PMCID: PMC7429792 DOI: 10.1186/s40104-020-00487-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 06/12/2020] [Indexed: 11/10/2022] Open
Abstract
Background Sertoli cells (SCs) create a specialized environment to support and dictate spermatogenesis. MicroRNAs (miRNAs), a kind of ~ 22 nt small noncoding RNAs, have been reported to be highly abundant in mouse SCs and play critical roles in spermatogenesis. However, the miRNAs of porcine SCs remain largely unknown. Methods We isolated porcine SCs and conducted small RNA sequencing. By comparing miRNAs in germ cells, we systematically analyzed the miRNA expression pattern of porcine SCs. We screened the highly enriched SC miRNAs and predicted their functions by Gene Ontology analysis. The dual luciferase assay was used to elucidate the regulation of tumor necrosis factor receptor (TNFR)-associated factor 3 (TRAF3) by ssc-miR-149. Results The analysis showed that 18 miRNAs were highly expressed in SCs and 15 miRNAs were highly expressed in germ cells. These miRNAs were predicted to mediate SC and germ cell functions. In addition, ssc-miR-149 played critical roles in SCs by targeting TRAF3. Conclusion Our findings provide novel insights into the miRNA expression pattern and their regulatory roles of porcine SCs.
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Affiliation(s)
- Xiaoxu Chen
- College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong, 723001 China.,Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Yi Zheng
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Xueliang Li
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Qiang Gao
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Tongying Feng
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Pengfei Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Mingzhi Liao
- College of Life Science, Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Xiu'e Tian
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Hongzhao Lu
- College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong, 723001 China
| | - Wenxian Zeng
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100 Shaanxi China
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21
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Virgen-Slane R, Correa RG, Ramezani-Rad P, Steen-Fuentes S, Detanico T, DiCandido MJ, Li J, Ware CF. Cutting Edge: The RNA-Binding Protein Ewing Sarcoma Is a Novel Modulator of Lymphotoxin β Receptor Signaling. THE JOURNAL OF IMMUNOLOGY 2020; 204:1085-1090. [PMID: 31969387 DOI: 10.4049/jimmunol.1901260] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 12/22/2019] [Indexed: 01/05/2023]
Abstract
Lymphotoxin β receptor (LTβR) signaling is crucial for lymphoid tissue organogenesis and immune homeostasis. To identify novel regulatory mechanisms for signaling, we implemented a two-step screen that uses coexpression analysis of human fibroblasts undergoing LTβR stimulation and affinity-purification mass spectrometry for the LTβR signaling protein TNFR-associated factor 3 (TRAF3). We identify Ewing sarcoma (EWS) protein as a novel LTβR signaling component that associates with TRAF3 but not with TNFR-associated factor 2 (TRAF2). The EWS:TRAF3 complex forms under unligated conditions that are disrupted following activation of the LTβR. We conclude that EWS limits expression of proinflammatory molecules, GM-CSF, and ERK-2, promoting immune homeostasis.
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Affiliation(s)
- Richard Virgen-Slane
- Laboratory of Molecular Immunology, Infectious and Inflammatory Diseases Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037
| | - Ricardo G Correa
- Laboratory of Molecular Immunology, Infectious and Inflammatory Diseases Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037
| | - Parham Ramezani-Rad
- National Cancer Institute-Designated Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037; and
| | - Seth Steen-Fuentes
- Laboratory of Molecular Immunology, Infectious and Inflammatory Diseases Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037
| | - Thiago Detanico
- Laboratory of Molecular Immunology, Infectious and Inflammatory Diseases Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037
| | - Michael J DiCandido
- Department of Immunology and Respiratory Disease Research, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, CT 06877
| | - Jun Li
- Department of Immunology and Respiratory Disease Research, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, CT 06877
| | - Carl F Ware
- Laboratory of Molecular Immunology, Infectious and Inflammatory Diseases Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037;
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22
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Purvis HA, Clarke F, Montgomery AB, Colas C, Bibby JA, Cornish GH, Dai X, Dudziak D, Rawlings DJ, Zamoyska R, Guermonprez P, Cope AP. Phosphatase PTPN22 Regulates Dendritic Cell Homeostasis and cDC2 Dependent T Cell Responses. Front Immunol 2020; 11:376. [PMID: 32194571 PMCID: PMC7065600 DOI: 10.3389/fimmu.2020.00376] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 02/17/2020] [Indexed: 12/19/2022] Open
Abstract
Dendritic cells (DCs) are specialized antigen presenting cells that instruct T cell responses through sensing environmental and inflammatory danger signals. Maintaining the homeostasis of the multiple functionally distinct conventional dendritic cells (cDC) subsets that exist in vivo is crucial for regulating immune responses, with changes in numbers sufficient to break immune tolerance. Using Ptpn22-/- mice we demonstrate that the phosphatase PTPN22 is a highly selective, negative regulator of cDC2 homeostasis, preventing excessive population expansion from as early as 3 weeks of age. Mechanistically, PTPN22 mediates cDC2 homeostasis in a cell intrinsic manner by restricting cDC2 proliferation. A single nucleotide polymorphism, PTPN22R620W, is one of the strongest genetic risk factors for multiple autoantibody associated human autoimmune diseases. We demonstrate that cDC2 are also expanded in mice carrying the orthologous PTPN22619W mutation. As a consequence, cDC2 dependent CD4+ T cell proliferation and T follicular helper cell responses are increased. Collectively, our data demonstrate that PTPN22 controls cDC2 homeostasis, which in turn ensures appropriate cDC2-dependent T cell responses under antigenic challenge. Our findings provide a link between perturbations in DC development and susceptibility to a broad spectrum of PTPN22R620W associated human autoimmune diseases.
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Affiliation(s)
- Harriet A Purvis
- Faculty of Life Sciences and Medicine, Centre for Inflammation Biology and Cancer Immunology, King's College London, London, United Kingdom
| | - Fiona Clarke
- Faculty of Life Sciences and Medicine, Centre for Inflammation Biology and Cancer Immunology, King's College London, London, United Kingdom
| | - Anna B Montgomery
- Faculty of Life Sciences and Medicine, Centre for Inflammation Biology and Cancer Immunology, King's College London, London, United Kingdom
| | - Chloe Colas
- Faculty of Life Sciences and Medicine, Centre for Inflammation Biology and Cancer Immunology, King's College London, London, United Kingdom
| | - Jack A Bibby
- Faculty of Life Sciences and Medicine, Centre for Inflammation Biology and Cancer Immunology, King's College London, London, United Kingdom
| | - Georgina H Cornish
- Faculty of Life Sciences and Medicine, Centre for Inflammation Biology and Cancer Immunology, King's College London, London, United Kingdom
| | - Xuezhi Dai
- Seattle Children's Research Institute, Seattle, WA, United States.,Department of Pediatrics, University of Washington School of Medicine, Seattle, WA, United States.,Department of Immunology, University of Washington School of Medicine, Seattle, WA, United States
| | - Diana Dudziak
- Laboratory of Dendritic Cell Biology, Department of Dermatology, Friedrich-Alexander University of Erlangen, Erlangen, Germany
| | - David J Rawlings
- Seattle Children's Research Institute, Seattle, WA, United States.,Department of Pediatrics, University of Washington School of Medicine, Seattle, WA, United States.,Department of Immunology, University of Washington School of Medicine, Seattle, WA, United States
| | - Rose Zamoyska
- Centre for Immunity, Infection and Evolution, Institute of Immunology and Infection Research, University of Edinburgh, Edinburgh, United Kingdom
| | - Pierre Guermonprez
- Faculty of Life Sciences and Medicine, Centre for Inflammation Biology and Cancer Immunology, King's College London, London, United Kingdom.,Centre for Inflammation Research, CNRS ERL8252, INSERM1149, Université de Paris, Paris, France
| | - Andrew P Cope
- Faculty of Life Sciences and Medicine, Centre for Inflammation Biology and Cancer Immunology, King's College London, London, United Kingdom
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23
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Yang X, Cheng H, Chen J, Wang R, Saleh A, Si H, Lee S, Guven-Maiorov E, Keskin O, Gursoy A, Nussinov R, Fang J, Van Waes C, Chen Z. Head and Neck Cancers Promote an Inflammatory Transcriptome through Coactivation of Classic and Alternative NF-κB Pathways. Cancer Immunol Res 2019; 7:1760-1774. [PMID: 31624067 PMCID: PMC6941750 DOI: 10.1158/2326-6066.cir-18-0832] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 04/22/2019] [Accepted: 09/03/2019] [Indexed: 01/01/2023]
Abstract
Head and neck squamous cell carcinomas (HNSCC) promote inflammation in the tumor microenvironment through aberrant NF-κB activation, but the genomic alterations and pathway networks that modulate NF-κB signaling have not been fully dissected. Here, we analyzed genome and transcriptome alterations of 279 HNSCC specimens from The Cancer Genome Atlas (TCGA) cohort and identified 61 genes involved in NF-κB and inflammatory pathways. The top 30 altered genes were distributed across 96% of HNSCC samples, and their expression was often correlated with genomic copy-number alterations (CNA). Ten of the amplified genes were associated with human papilloma virus (HPV) status. We sequenced 15 HPV- and 11 HPV+ human HNSCC cell lines, and three oral mucosa keratinocyte lines, and supervised clustering revealed that 28 of 61 genes exhibit altered expression patterns concordant with HNSCC tissues and distinct signatures related to their HPV status. RNAi screening using an NF-κB reporter line identified 16 genes that are induced by TNFα or Lymphotoxin-β (LTβ) and implicated in the classic and/or alternative NF-κB pathways. Knockdown of TNFR, LTBR, or selected downstream signaling components established cross-talk between the classic and alternative NF-κB pathways. TNFα and LTβ induced differential gene expression involving the NF-κB, IFNγ, and STAT pathways, inflammatory cytokines, and metastasis-related genes. Improved survival was observed in HNSCC patients with elevated gene expression in T-cell activation, immune checkpoints, and IFNγ and STAT pathways. These gene signatures of NF-κB activation, which modulate inflammation and responses to the immune therapy, could serve as potential biomarkers in future clinical trials.
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Affiliation(s)
- Xinping Yang
- Tumor Biology Section and Clinical Genomics Unit, Head and Neck Surgery Branch, National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Bethesda, Maryland
| | - Hui Cheng
- Tumor Biology Section and Clinical Genomics Unit, Head and Neck Surgery Branch, National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Bethesda, Maryland
| | - Jianhong Chen
- Tumor Biology Section and Clinical Genomics Unit, Head and Neck Surgery Branch, National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Bethesda, Maryland
| | - Ru Wang
- Tumor Biology Section and Clinical Genomics Unit, Head and Neck Surgery Branch, National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Bethesda, Maryland
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Anthony Saleh
- Tumor Biology Section and Clinical Genomics Unit, Head and Neck Surgery Branch, National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Bethesda, Maryland
| | - Han Si
- Tumor Biology Section and Clinical Genomics Unit, Head and Neck Surgery Branch, National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Bethesda, Maryland
| | - Steven Lee
- Tumor Biology Section and Clinical Genomics Unit, Head and Neck Surgery Branch, National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Bethesda, Maryland
| | - Emine Guven-Maiorov
- Computational Structural Biology Section, Basic Science Program, Frederick National Laboratory for Cancer Research, Frederick, Maryland
- Department of Chemical and Biological Engineering, College of Engineering, Koc University, Istanbul, Turkey
| | - Ozlem Keskin
- Department of Chemical and Biological Engineering, College of Engineering, Koc University, Istanbul, Turkey
- Koc University Research Center for Translational Medicine (KUTTAM), Istanbul, Turkey
| | - Attila Gursoy
- Department of Computer Engineering, College of Engineering, Koc University, Istanbul, Turkey
- Koc University Research Center for Translational Medicine (KUTTAM), Istanbul, Turkey
| | - Ruth Nussinov
- Computational Structural Biology Section, Basic Science Program, Frederick National Laboratory for Cancer Research, Frederick, Maryland
| | - Jugao Fang
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Carter Van Waes
- Tumor Biology Section and Clinical Genomics Unit, Head and Neck Surgery Branch, National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Bethesda, Maryland.
| | - Zhong Chen
- Tumor Biology Section and Clinical Genomics Unit, Head and Neck Surgery Branch, National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Bethesda, Maryland.
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24
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A genome-wide association study explores the genetic determinism of host resistance to Salmonella pullorum infection in chickens. Genet Sel Evol 2019; 51:51. [PMID: 31533607 PMCID: PMC6751821 DOI: 10.1186/s12711-019-0492-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 08/29/2019] [Indexed: 12/27/2022] Open
Abstract
Background Salmonella infection is a serious concern in poultry farming because of its impact on both economic loss and human health. Chicks aged 20 days or less are extremely vulnerable to Salmonella pullorum (SP), which causes high mortality. Furthermore, an outbreak of SP infection can result in a considerable number of carriers that become potential transmitters, thus, threatening fellow chickens and offspring. In this study, we conducted a genome-wide association study (GWAS) to detect potential genomic loci and candidate genes associated with two disease-related traits: death and carrier state. Methods In total, 818 birds were phenotyped for death and carrier state traits through a SP challenge experiment, and genotyped by using a 600 K high-density single nucleotide polymorphism (SNP) array. A GWAS using a single-marker linear mixed model was performed with the GEMMA software. RNA-sequencing on spleen samples was carried out for further identification of candidate genes. Results We detected a region that was located between 33.48 and 34.03 Mb on chicken chromosome 4 and was significantly associated with death, with the most significant SNP (rs314483802) accounting for 11.73% of the phenotypic variation. Two candidate genes, FBXW7 and LRBA, were identified as the most promising genes involved in resistance to SP. The expression levels of FBXW7 and LRBA were significantly downregulated after SP infection, which suggests that they may have a role in controlling SP infections. Two other significant loci and related genes (TRAF3 and gga-mir-489) were associated with carrier state, which indicates a different polygenic determinism compared with that of death. In addition, genomic inbreeding coefficients showed no correlation with resistance to SP within each breed in our study. Conclusions The results of this GWAS with a carefully organized Salmonella challenge experiment represent an important milestone in understanding the genetics of infectious disease resistance, offer a theoretical basis for breeding SP-resistant chicken lines using marker-assisted selection, and provide new information for salmonellosis research in humans and other animals.
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25
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Zhang J, Yin C, Zhao Q, Zhao Z, Wang J, Miron RJ, Zhang Y. Anti-inflammation effects of injectable platelet-rich fibrin via macrophages and dendritic cells. J Biomed Mater Res A 2019; 108:61-68. [PMID: 31449340 DOI: 10.1002/jbm.a.36792] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 08/12/2019] [Accepted: 08/19/2019] [Indexed: 12/12/2022]
Abstract
Immune response to implantation materials plays a critical role during early local inflammation and biomaterial-induced regeneration or restoration. A novel platelet concentrate termed i-PRF (injectable platelet-rich fibrin) has recently been developed without any additives by low centrifugation speeds. To date, scientists have investigated the capability of releasing growth factors to improve regeneration but have ignored whether i-PRF can inhibit the inflammatory effect around the wound. The present study investigated the anti-inflammation effects of i-PRF on immune response-related cells, especially macrophages and dendric cells. We found that i-PRF reduced pro-inflammatory M1 phenotype of macrophages and activated dendritic cells around muscle defect that was injected with bacterial suspension. Moreover, in vitro experiments showed similar results. i-PRF deleted inflammatory response caused by lipopolysaccharide to some extent. We determined that TLR4, an activator of inflammatory stimulation and p-p65, a key factor belongs to classical inflammatory related NF-κB signal pathway, can be inhibited by use of i-PRF. Results indicate the potential anti-inflammatory role of i-PRF during regeneration and restoration.
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Affiliation(s)
- Jinglun Zhang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China.,Department of Oral Implantology, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Chengcheng Yin
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China.,Department of Oral Implantology, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Qin Zhao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China.,Department of Oral Implantology, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Zifan Zhao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China.,Department of Oral Implantology, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Jinyang Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China.,Department of Oral Implantology, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Richard J Miron
- Centre for Collaborative Research, Nova Southeastern University, Cell Therapy Institute, Fort Lauderdale, Florida.,Department of Periodontology, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, Florida.,Department of Periodontics and Oral Surgery, University of Ann Arbor, Ann Arbor, Michigan
| | - Yufeng Zhang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China.,Department of Oral Implantology, School and Hospital of Stomatology, Wuhan University, Wuhan, China
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26
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Li J, Ayoub A, Xiu Y, Yin X, Sanders JO, Mesfin A, Xing L, Yao Z, Boyce BF. TGFβ-induced degradation of TRAF3 in mesenchymal progenitor cells causes age-related osteoporosis. Nat Commun 2019; 10:2795. [PMID: 31243287 PMCID: PMC6595054 DOI: 10.1038/s41467-019-10677-0] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 05/22/2019] [Indexed: 01/08/2023] Open
Abstract
Inflammaging induces osteoporosis by promoting bone destruction and inhibiting bone formation. TRAF3 limits bone destruction by inhibiting RANKL-induced NF-κB signaling in osteoclast precursors. However, the role of TRAF3 in mesenchymal progenitor cells (MPCs) is unknown. Mice with TRAF3 deleted in MPCs develop early onset osteoporosis due to reduced bone formation and enhanced bone destruction. In young mice TRAF3 prevents β-catenin degradation in MPCs and maintains osteoblast formation. However, TRAF3 protein levels decrease in murine and human bone samples during aging when TGFβ1 is released from resorbing bone. TGFβ1 induces degradation of TRAF3 in murine MPCs and inhibits osteoblast formation through GSK-3β-mediated degradation of β-catenin. Thus, TRAF3 positively regulates MPC differentiation into osteoblasts. TRAF3 deletion in MPCs activated NF-κB RelA and RelB to promote RANKL expression and enhance bone destruction. We conclude that pharmacologic stabilization of TRAF3 during aging could treat/prevent age-related osteoporosis by inhibiting bone destruction and promoting bone formation.
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Affiliation(s)
- Jinbo Li
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Akram Ayoub
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Yan Xiu
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, 14642, USA
- Department of Pathology, University of Iowa, Iowa City, IA, 52242, USA
| | - Xiaoxiang Yin
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, 14642, USA
- Department of Medical Imaging, Henan University First Affiliated Hospital, 357 Ximen Street, Kaifeng, 475001, Henan, P.R. China
| | - James O Sanders
- Department of Orthopaedics and Rehabilitation Medicine, University of Rochester Medical Center, Rochester, NY, 14642, USA
- Department of Orthopaedics, University of North Carolina, Chapel Hill, NC, 27514, USA
| | - Addisu Mesfin
- Department of Orthopaedics and Rehabilitation Medicine, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Lianping Xing
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Zhenqiang Yao
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, 14642, USA.
| | - Brendan F Boyce
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, 14642, USA.
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27
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Fochi S, Bergamo E, Serena M, Mutascio S, Journo C, Mahieux R, Ciminale V, Bertazzoni U, Zipeto D, Romanelli MG. TRAF3 Is Required for NF-κB Pathway Activation Mediated by HTLV Tax Proteins. Front Microbiol 2019; 10:1302. [PMID: 31244811 PMCID: PMC6581700 DOI: 10.3389/fmicb.2019.01302] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 05/24/2019] [Indexed: 01/23/2023] Open
Abstract
Human T-cell leukemia viruses type 1 (HTLV-1) and type 2 (HTLV-2) share a common genome organization and expression strategy but have distinct pathological properties. HTLV-1 is the etiological agent of Adult T-cell Leukemia (ATL) and of HTLV-1-Associated Myelopathy/Tropical Spastic Paraparesis (HAM/TSP), whereas HTLV-2 does not cause hematological disorders and is only sporadically associated with cases of subacute myelopathy. Both HTLV genomes encode two regulatory proteins that play a pivotal role in pathogenesis: the transactivating Tax-1 and Tax-2 proteins and the antisense proteins HBZ and APH-2, respectively. We recently reported that Tax-1 and Tax-2 form complexes with the TNF-receptor associated factor 3, TRAF3, a negative regulator of the non-canonical NF-κB pathway. The NF-κB pathway is constitutively activated by the Tax proteins, whereas it is inhibited by HBZ and APH-2. The antagonistic effects of Tax and antisense proteins on NF-κB activation have not yet been fully clarified. Here, we investigated the effect of TRAF3 interaction with HTLV regulatory proteins and in particular its consequence on the subcellular distribution of the effector p65/RelA protein. We demonstrated that Tax-1 and Tax-2 efficiency on NF-κB activation is impaired in TRAF3 deficient cells obtained by CRISPR/Cas9 editing. We also found that APH-2 is more effective than HBZ in preventing Tax-dependent NF-κB activation. We further observed that TRAF3 co-localizes with Tax-2 and APH-2 in cytoplasmic complexes together with NF-κB essential modulator NEMO and TAB2, differently from HBZ and TRAF3. These results contribute to untangle the mechanism of NF-κB inhibition by HBZ and APH-2, highlighting the different role of the HTLV-1 and HTLV-2 regulatory proteins in the NF-κB activation.
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Affiliation(s)
- Stefania Fochi
- Department of Neurosciences, Biomedicine and Movement Sciences, Section of Biology and Genetics, University of Verona, Verona, Italy
| | - Elisa Bergamo
- Department of Neurosciences, Biomedicine and Movement Sciences, Section of Biology and Genetics, University of Verona, Verona, Italy
| | - Michela Serena
- Department of Neurosciences, Biomedicine and Movement Sciences, Section of Biology and Genetics, University of Verona, Verona, Italy
| | - Simona Mutascio
- Department of Neurosciences, Biomedicine and Movement Sciences, Section of Biology and Genetics, University of Verona, Verona, Italy
| | - Chloé Journo
- Retroviral Oncogenesis Laboratory, Centre International de Recherche en Infectiologie (CIRI), INSERM U1111 - Université Claude Bernard Lyon 1, CNRS, Equipe Labellisée "Fondation pour la Recherche Médicale", UMR5308, Ecole Normale Supérieure de Lyon, Université Lyon, Lyon, France
| | - Renaud Mahieux
- Retroviral Oncogenesis Laboratory, Centre International de Recherche en Infectiologie (CIRI), INSERM U1111 - Université Claude Bernard Lyon 1, CNRS, Equipe Labellisée "Fondation pour la Recherche Médicale", UMR5308, Ecole Normale Supérieure de Lyon, Université Lyon, Lyon, France
| | - Vincenzo Ciminale
- Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy.,Veneto Institute of Oncology IOV - IRCCS, Padua, Italy
| | - Umberto Bertazzoni
- Department of Neurosciences, Biomedicine and Movement Sciences, Section of Biology and Genetics, University of Verona, Verona, Italy
| | - Donato Zipeto
- Department of Neurosciences, Biomedicine and Movement Sciences, Section of Biology and Genetics, University of Verona, Verona, Italy
| | - Maria Grazia Romanelli
- Department of Neurosciences, Biomedicine and Movement Sciences, Section of Biology and Genetics, University of Verona, Verona, Italy
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28
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Zaborsky N, Gassner FJ, Höpner JP, Schubert M, Hebenstreit D, Stark R, Asslaber D, Steiner M, Geisberger R, Greil R, Egle A. Exome sequencing of the TCL1 mouse model for CLL reveals genetic heterogeneity and dynamics during disease development. Leukemia 2019; 33:957-968. [PMID: 30262843 PMCID: PMC6477797 DOI: 10.1038/s41375-018-0260-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 08/07/2018] [Accepted: 08/20/2018] [Indexed: 01/05/2023]
Abstract
The TCL1 mouse model is widely used to study pathophysiology, clonal evolution, and drug sensitivity or resistance of chronic lymphocytic leukemia (CLL). By performing whole exome sequencing, we present the genetic landscape of primary tumors from TCL1 mice and of TCL1 tumors serially transplanted into wild-type recipients to mimic clonal evolution. We show that similar to CLL patients, mutations in mice are frequently subclonal and heterogenous among different primary TCL1 mice. We further describe that this molecular heterogeneity mirrors heterogenous disease characteristics such as organ infiltration or CLL dependent T cell skewing. Similar to human CLL, we further observed the occurrence of novel mutations and structural variations during clonal evolution and found plasticity in the expansion of B cell receptor specific subclones. Thus, our results uncover that the genetic complexity, pathway dependence and clonal dynamics in mouse CLL are in relevant agreement to human CLL, and they are important to consider in future research using the TCL1 mouse for studying CLL.
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Affiliation(s)
- Nadja Zaborsky
- Department of Internal Medicine III with Haematology, Medical Oncology, Haemostaseology, Infectiology and Rheumatology, Oncologic Center, Paracelsus Medical University, Salzburg, Austria.
- Salzburg Cancer Research Institute - Laboratory for Immunological and Molecular Cancer Research (SCRI-LIMCR), Salzburg, Austria.
- Cancer Cluster Salzburg, Salzburg, Austria.
| | - Franz J Gassner
- Department of Internal Medicine III with Haematology, Medical Oncology, Haemostaseology, Infectiology and Rheumatology, Oncologic Center, Paracelsus Medical University, Salzburg, Austria
- Salzburg Cancer Research Institute - Laboratory for Immunological and Molecular Cancer Research (SCRI-LIMCR), Salzburg, Austria
- Cancer Cluster Salzburg, Salzburg, Austria
| | - Jan P Höpner
- Department of Internal Medicine III with Haematology, Medical Oncology, Haemostaseology, Infectiology and Rheumatology, Oncologic Center, Paracelsus Medical University, Salzburg, Austria
- Salzburg Cancer Research Institute - Laboratory for Immunological and Molecular Cancer Research (SCRI-LIMCR), Salzburg, Austria
- Cancer Cluster Salzburg, Salzburg, Austria
| | - Maria Schubert
- Department of Internal Medicine III with Haematology, Medical Oncology, Haemostaseology, Infectiology and Rheumatology, Oncologic Center, Paracelsus Medical University, Salzburg, Austria
- Salzburg Cancer Research Institute - Laboratory for Immunological and Molecular Cancer Research (SCRI-LIMCR), Salzburg, Austria
- Cancer Cluster Salzburg, Salzburg, Austria
| | | | - Richard Stark
- School of Life Sciences, University of Warwick, Coventry, UK
| | - Daniela Asslaber
- Department of Internal Medicine III with Haematology, Medical Oncology, Haemostaseology, Infectiology and Rheumatology, Oncologic Center, Paracelsus Medical University, Salzburg, Austria
- Salzburg Cancer Research Institute - Laboratory for Immunological and Molecular Cancer Research (SCRI-LIMCR), Salzburg, Austria
- Cancer Cluster Salzburg, Salzburg, Austria
| | - Markus Steiner
- Department of Internal Medicine III with Haematology, Medical Oncology, Haemostaseology, Infectiology and Rheumatology, Oncologic Center, Paracelsus Medical University, Salzburg, Austria
- Salzburg Cancer Research Institute - Laboratory for Immunological and Molecular Cancer Research (SCRI-LIMCR), Salzburg, Austria
- Cancer Cluster Salzburg, Salzburg, Austria
| | - Roland Geisberger
- Department of Internal Medicine III with Haematology, Medical Oncology, Haemostaseology, Infectiology and Rheumatology, Oncologic Center, Paracelsus Medical University, Salzburg, Austria
- Salzburg Cancer Research Institute - Laboratory for Immunological and Molecular Cancer Research (SCRI-LIMCR), Salzburg, Austria
- Cancer Cluster Salzburg, Salzburg, Austria
| | - Richard Greil
- Department of Internal Medicine III with Haematology, Medical Oncology, Haemostaseology, Infectiology and Rheumatology, Oncologic Center, Paracelsus Medical University, Salzburg, Austria
- Salzburg Cancer Research Institute - Laboratory for Immunological and Molecular Cancer Research (SCRI-LIMCR), Salzburg, Austria
- Cancer Cluster Salzburg, Salzburg, Austria
| | - Alexander Egle
- Department of Internal Medicine III with Haematology, Medical Oncology, Haemostaseology, Infectiology and Rheumatology, Oncologic Center, Paracelsus Medical University, Salzburg, Austria
- Salzburg Cancer Research Institute - Laboratory for Immunological and Molecular Cancer Research (SCRI-LIMCR), Salzburg, Austria
- Cancer Cluster Salzburg, Salzburg, Austria
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29
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Variants in ABCG8 and TRAF3 genes confer risk for gallstone disease in admixed Latinos with Mapuche Native American ancestry. Sci Rep 2019; 9:772. [PMID: 30692554 PMCID: PMC6349870 DOI: 10.1038/s41598-018-35852-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 10/28/2018] [Indexed: 01/12/2023] Open
Abstract
Latin Americans and Chilean Amerindians have the highest prevalence of gallstone disease (GSD) and gallbladder cancer (GBC) in the world. A handful of loci have been associated with GSD in populations of predominantly European ancestry, however, they only explain a small portion of the genetic component of the disease. Here, we performed a genome-wide association study (GWAS) for GSD in 1,095 admixed Chilean Latinos with Mapuche Native American ancestry. Disease status was assessed by cholecystectomy or abdominal ultrasonography. Top-10 candidate variants surpassing the suggestive cutoff of P < 1 × 10−5 in the discovery cohort were genotyped in an independent replication sample composed of 1,643 individuals. Variants with positive replication were further examined in two European GSD populations and a Chilean GBC cohort. We consistently replicated the association of ABCG8 gene with GSD (rs11887534, P = 3.24 × 10−8, OR = 1.74) and identified TRAF3 (rs12882491, P = 1.11 × 10−7, OR = 1.40) as a novel candidate gene for the disease in admixed Chilean Latinos. ABCG8 and TRAF3 variants also conferred risk to GBC. Gene expression analyses indicated that TRAF3 was significantly decreased in gallbladder (P = 0.015) and duodenal mucosa (P = 0.001) of GSD individuals compared to healthy controls, where according to GTEx data in the small intestine, the presence of the risk allele contributes to the observed effect. We conclude that ABCG8 and TRAF3 genes are associated with GSD and GBC in admixed Latinos and that decreased TRAF3 levels could enhance gallbladder inflammation as is observed in GSD and GSD-associated GBC.
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30
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Boyce BF, Li J, Xing L, Yao Z. Bone Remodeling and the Role of TRAF3 in Osteoclastic Bone Resorption. Front Immunol 2018; 9:2263. [PMID: 30323820 PMCID: PMC6172306 DOI: 10.3389/fimmu.2018.02263] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 09/11/2018] [Indexed: 02/05/2023] Open
Abstract
Skeletal health is maintained by bone remodeling, a process in which microscopic sites of effete or damaged bone are degraded on bone surfaces by osteoclasts and subsequently replaced by new bone, which is laid down by osteoblasts. This normal process can be disturbed in a variety of pathologic processes, including localized or generalized inflammation, metabolic and endocrine disorders, primary and metastatic cancers, and during aging as a result of low-grade chronic inflammation. Osteoclast formation and activity are promoted by factors, including cytokines, hormones, growth factors, and free radicals, and require expression of macrophage-colony stimulating factor (M-CSF) and receptor activator of NF-κB ligand (RANKL) by accessory cells in the bone marrow, including osteoblastic and immune cells. Expression of TNF receptor-associated factor 6 (TRAF6) is required in osteoclast precursors to mediate RANKL-induced activation of NF-κB, which is also necessary for osteoclast formation and activity. TRAF3, in contrast is not required for osteoclast formation, but it limits RANKL-induced osteoclast formation by promoting proteasomal degradation of NF-κB-inducing kinase in a complex with TRAF2 and cellular inhibitor of apoptosis proteins (cIAP). TRAF3 also limits osteoclast formation induced by TNF, which mediates inflammation and joint destruction in inflammatory diseases, including rheumatoid arthritis. Chloroquine and hydroxychloroquine, anti-inflammatory drugs used to treat rheumatoid arthritis, prevent TRAF3 degradation in osteoclast precursors and inhibit osteoclast formation in vitro. Chloroquine also inhibits bone destruction induced by ovariectomy and parathyroid hormone in mice in vivo. Mice genetically engineered to have TRAF3 deleted in osteoclast precursors and macrophages develop early onset osteoporosis, inflammation in multiple tissues, infections, and tumors, indicating that TRAF3 suppresses inflammation and tumors in myeloid cells. Mice with TRAF3 conditionally deleted in mesenchymal cells also develop early onset osteoporosis due to a combination of increased osteoclast formation and reduced osteoblast formation. TRAF3 protein levels decrease in bone and bone marrow during aging in mice and humans. Development of drugs to prevent TRAF3 degradation in immune and bone cells could be a novel therapeutic approach to prevent or reduce bone loss and the incidence of several common diseases associated with aging.
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Affiliation(s)
- Brendan F. Boyce
- Department of Pathology and Laboratory Medicine, Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, United States
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31
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Spel L, Nieuwenhuis J, Haarsma R, Stickel E, Bleijerveld OB, Altelaar M, Boelens JJ, Brummelkamp TR, Nierkens S, Boes M. Nedd4-Binding Protein 1 and TNFAIP3-Interacting Protein 1 Control MHC-1 Display in Neuroblastoma. Cancer Res 2018; 78:6621-6631. [DOI: 10.1158/0008-5472.can-18-0545] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 06/20/2018] [Accepted: 09/10/2018] [Indexed: 11/16/2022]
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32
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Huang T, Gao Z, Zhang Y, Fan K, Wang F, Li Y, Zhong J, Fan HY, Cao Q, Zhou J, Xiao Y, Hu H, Jin J. CRL4 DCAF2 negatively regulates IL-23 production in dendritic cells and limits the development of psoriasis. J Exp Med 2018; 215:1999-2017. [PMID: 30018073 PMCID: PMC6080916 DOI: 10.1084/jem.20180210] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 04/18/2018] [Accepted: 06/14/2018] [Indexed: 02/05/2023] Open
Abstract
The E3 ligase CRL4DCAF2 is believed to be a pivotal regulator of the cell cycle and is required for mitotic and S phase progression. The NEDD8-targeting drug MLN4924, which inactivates cullin ring-finger ubiquitin ligases (CRLs), has been examined in clinical trials for various types of lymphoma and acute myeloid leukemia. However, the essential role of CRL4DCAF2 in primary myeloid cells remains poorly understood. MLN4924 treatment, which mimics DCAF2 depletion, also promotes the severity of mouse psoriasis models, consistent with the effects of reduced DCAF2 expression in various autoimmune diseases. Using transcriptomic and immunological approaches, we showed that CRL4DCAF2 in dendritic cells (DCs) regulates the proteolytic fate of NIK and negatively regulates IL-23 production. CRL4DCAF2 promoted the polyubiquitination and subsequent degradation of NIK independent of TRAF3 degradation. DCAF2 deficiency facilitated NIK accumulation and RelB nuclear translocation. DCAF2 DC-conditional knockout mice displayed increased sensitivity to autoimmune diseases. This study shows that CRL4DCAF2 is crucial for controlling NIK stability and highlights a unique mechanism that controls inflammatory diseases.
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Affiliation(s)
- Tao Huang
- Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Zhengjun Gao
- Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Yu Zhang
- Sir Run Run Shaw Hospital, College of Medicine Zhejiang University, Hangzhou, China
| | - Keqi Fan
- Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Fei Wang
- Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Yiyuan Li
- Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Jiangyan Zhong
- Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Heng Y Fan
- Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Qian Cao
- Sir Run Run Shaw Hospital, College of Medicine Zhejiang University, Hangzhou, China
| | - Jiyong Zhou
- Key Laboratory of Animal Virology of Ministry of Agriculture, Zhejiang University, Hangzhou, China
| | - Yichuan Xiao
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences/Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hongbo Hu
- Department of Rheumatology and Immunology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu, China
| | - Jin Jin
- Life Sciences Institute, Zhejiang University, Hangzhou, China
- Key Laboratory of Animal Virology of Ministry of Agriculture, Zhejiang University, Hangzhou, China
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33
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Piao W, Xiong Y, Famulski K, Brinkman CC, Li L, Toney N, Wagner C, Saxena V, Simon T, Bromberg JS. Regulation of T cell afferent lymphatic migration by targeting LTβR-mediated non-classical NFκB signaling. Nat Commun 2018; 9:3020. [PMID: 30069025 PMCID: PMC6070541 DOI: 10.1038/s41467-018-05412-0] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 06/02/2018] [Indexed: 12/23/2022] Open
Abstract
Lymphotoxin-beta receptor (LTβR) signaling in lymphatic endothelial cells (LEC) regulates leukocyte afferent lymphatic transendothelial migration (TEM). The function of individual signaling pathways for different leukocyte subsets is currently unknown. Here, we show that LTβR signals predominantly via the constitutive and ligand-driven non-classical NIK pathway. Targeting LTβR-NIK by an LTβR-derived decoy peptide (nciLT) suppresses the production of chemokines CCL21 and CXCL12, and enhances the expression of classical NFκB-driven VCAM-1 and integrin β4 to retain T cells on LEC and precludes T cell and dendritic cell TEM. nciLT inhibits contact hypersensitivity (CHS) at both the sensitization and elicitation stages, likely by inhibiting leukocyte migration. By contrast, targeting LTβR-classical NFκB signaling during the elicitation and resolution stages attenuates CHS, possibly by promoting leukocyte egress. These findings demonstrate the importance of LTβR signaling in leukocyte migration and LEC and lymphatic vessel function, and show that antagonist peptides may serve as lead compounds for therapeutic applications.
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Affiliation(s)
- Wenji Piao
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Yanbao Xiong
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Konrad Famulski
- Department of Laboratory Medicine and Pathology, University of Alberta, 250 Heritage Medical Research Centre, Edmonton, AB, T6G 2S2, Canada
| | - C Colin Brinkman
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Lushen Li
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Nicholas Toney
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Chelsea Wagner
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Vikas Saxena
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Thomas Simon
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Jonathan S Bromberg
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA.
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, 21201, USA.
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA.
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34
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Zou M, Wang F, Jiang A, Xia A, Kong S, Gong C, Zhu M, Zhou X, Zhu J, Zhu W, Cheng W. MicroRNA-3178 ameliorates inflammation and gastric carcinogenesis promoted by Helicobacter pylori new toxin, Tip-α, by targeting TRAF3. Helicobacter 2017; 22. [PMID: 27493095 DOI: 10.1111/hel.12348] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Helicobacter pylori infection is the main cause of chronic gastritis, peptic ulcer, and gastric cancer. Tip-α is a newly identified carcinogenic factor present in H. pylori. TRAF3 can activate NF-κB by both canonical and noncanonical signaling pathways. In this study, we found that the expression of TRAF3 and NF-κB was upregulated, while microRNA-3178 (miR-3178) was decreased in H. pylori-positive gastric tissues but not in H. pylori-negative tissues. MATERIALS AND METHODS GES-1 cells were incubated with 12.5 μg/mL recombinant Tip-α (rTip-α) in RPMI1640 for 2 hours. After another 24 hours, the supernatant medium was designed as inflammatory-conditioned medium (ICM) and that from the untreated control cells was designed as untreated control medium. The release of proinflammatory cytokines from GES-1 cells and proliferation of gastric cancer cells was determined by ELISA and CCK-8 kits. Cells were transfected with the mimic, inhibitor, negative control of miR-3178, or TRAF3 siRNA control siRNA. The medium was then replaced with RPMI1640, 12.5 μg/mL rTip-α, and collected, and the total cellular RNA and protein were extracted for the following detection. RESULTS MiR-3178 mimic prevented the increasement of TRAF3 and hence decreased activation of NF-κB signals, whereas miR-3178 inhibitor could not, in GES-1 cells with Tip-α treatment. The condition medium from miR-3178 mimic transfected GES-1 cells could inhibit proliferation and induce apoptosis of inflammation-related gastric cancer cells SGC7901 and MGC803 by decreasing the production of inflammatory cytokines TNF-α and IL-6, which were secreted by GES-1 cells. CONCLUSIONS Taken all together, Tip-α might activate NF-κB to promote inflammation and carcinogenesis by inhibiting miR-3178 expression, which directly targeting TRAF3, during H. pylori infection in gastric mucosal epithelial cells.
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Affiliation(s)
- Meijuan Zou
- Department of Pharmacology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, China
| | - Fang Wang
- Department of Cardiology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Aiqin Jiang
- Medical School of Nanjing University, Nanjing, China
| | - Anliang Xia
- Department of Pharmacology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, China
| | - Siya Kong
- Department of Pharmacology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, China
| | - Chun Gong
- Nanjing University of Chinese Medicine, Nanjing, China
| | - Mingxia Zhu
- Department of Oncology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xin Zhou
- Department of Oncology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Jun Zhu
- Department of Radiation Oncology, Jiangsu Cancer Hospital, Nanjing, China
| | - Wei Zhu
- Department of Oncology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Wenfang Cheng
- Department of Gastroenterology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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NF-κB and IRF1 Induce Endogenous Retrovirus K Expression via Interferon-Stimulated Response Elements in Its 5' Long Terminal Repeat. J Virol 2016; 90:9338-49. [PMID: 27512062 DOI: 10.1128/jvi.01503-16] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Accepted: 07/28/2016] [Indexed: 01/06/2023] Open
Abstract
UNLABELLED Thousands of endogenous retroviruses (ERV), viral fossils of ancient germ line infections, reside within the human genome. Evidence of ERV activity has been observed widely in both health and disease. While this is most often cited as a bystander effect of cell culture or disease states, it is unclear which signals control ERV transcription. Bioinformatic analysis suggests that the viral promoter of endogenous retrovirus K (ERVK) is responsive to inflammatory transcription factors. Here we show that one reason for ERVK upregulation in amyotrophic lateral sclerosis (ALS) is the presence of functional interferon-stimulated response elements (ISREs) in the viral promoter. Transcription factor overexpression assays revealed independent and synergistic upregulation of ERVK by interferon regulatory factor 1 (IRF1) and NF-κB isoforms. Tumor necrosis factor alpha (TNF-α) and LIGHT cytokine treatments of human astrocytes and neurons enhanced ERVK transcription and protein levels through IRF1 and NF-κB binding to the ISREs. We further show that in ALS brain tissue, neuronal ERVK reactivation is associated with the nuclear translocation of IRF1 and NF-κB isoforms p50 and p65. ERVK overexpression can cause motor neuron pathology in murine models. Our results implicate neuroinflammation as a key trigger of ERVK provirus reactivation in ALS. These molecular mechanisms may also extend to the pathobiology of other ERVK-associated inflammatory diseases, such as cancers, HIV infection, rheumatoid arthritis, and schizophrenia. IMPORTANCE It has been well established that inflammatory signaling pathways in ALS converge at NF-κB to promote neuronal damage. Our findings suggest that inflammation-driven IRF1 and NF-κB activity promotes ERVK reactivation in neurons of the motor cortex in ALS. Thus, quenching ERVK activity through antiretroviral or immunomodulatory regimens may hinder virus-mediated neuropathology and improve the symptoms of ALS or other ERVK-associated diseases.
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Fernandes MT, Dejardin E, dos Santos NR. Context-dependent roles for lymphotoxin-β receptor signaling in cancer development. Biochim Biophys Acta Rev Cancer 2016; 1865:204-19. [PMID: 26923876 DOI: 10.1016/j.bbcan.2016.02.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Revised: 02/03/2016] [Accepted: 02/24/2016] [Indexed: 12/20/2022]
Abstract
The LTα1β2 and LIGHT TNF superfamily cytokines exert pleiotropic physiological functions through the activation of their cognate lymphotoxin-β receptor (LTβR). Interestingly, since the discovery of these proteins, accumulating evidence has pinpointed a role for LTβR signaling in carcinogenesis. Early studies have shown a potential anti-tumoral role in a subset of solid cancers either by triggering apoptosis in malignant cells or by eliciting an anti-tumor immune response. However, more recent studies provided robust evidence that LTβR signaling is also involved in diverse cell-intrinsic and microenvironment-dependent pro-oncogenic mechanisms, affecting several solid and hematological malignancies. Consequently, the usefulness of LTβR signaling axis blockade has been investigated as a potential therapeutic approach for cancer. Considering the seemingly opposite roles of LTβR signaling in diverse cancer types and their key implications for therapy, we here extensively review the different mechanisms by which LTβR activation affects carcinogenesis, focusing on the diverse contexts and different models assessed.
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Affiliation(s)
- Mónica T Fernandes
- Centre for Biomedical Research (CBMR), University of Algarve, Faro 8005-139, Portugal; PhD Program in Biomedical Sciences, Department of Biomedical Sciences and Medicine, University of Algarve, Faro 8005-139, Portugal
| | - Emmanuel Dejardin
- Laboratory of Molecular Immunology and Signal Transduction, GIGA-Research, Molecular Biology of Diseases, University of Liège, Liège 4000, Belgium
| | - Nuno R dos Santos
- Centre for Biomedical Research (CBMR), University of Algarve, Faro 8005-139, Portugal; Instituto de Investigação e Inovação em Saúde (I3S), Universidade do Porto, Porto 4200, Portugal; Institute of Pathology and Molecular Immunology, University of Porto (IPATIMUP), Porto 4200, Portugal.
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Wang PX, Zhang XJ, Luo P, Jiang X, Zhang P, Guo J, Zhao GN, Zhu X, Zhang Y, Yang S, Li H. Hepatocyte TRAF3 promotes liver steatosis and systemic insulin resistance through targeting TAK1-dependent signalling. Nat Commun 2016; 7:10592. [PMID: 26882989 PMCID: PMC4757796 DOI: 10.1038/ncomms10592] [Citation(s) in RCA: 88] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Accepted: 01/04/2016] [Indexed: 12/21/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is characterized by hepatic steatosis, insulin resistance and a systemic pro-inflammatory response. Here we show that tumour necrosis factor receptor-associated factor 3 (TRAF3) is upregulated in mouse and human livers with hepatic steatosis. After 24 weeks on a high-fat diet (HFD), obesity, insulin resistance, hepatic steatosis and inflammatory responses are significantly ameliorated in liver-specific TRAF3-knockout mice, but exacerbated in transgenic mice overexpressing TRAF3 in hepatocytes. The detrimental effects of TRAF3 on hepatic steatosis and related pathologies are confirmed in ob/ob mice. We further show that in response to HFD, hepatocyte TRAF3 binds to TGF-β-activated kinase 1 (TAK1) to induce TAK1 ubiquitination and subsequent autophosphorylation, thereby enhancing the activation of downstream IKKβ-NF-κB and MKK-JNK-IRS1(307) signalling cascades, while disrupting AKT-GSK3β/FOXO1 signalling. The TRAF3-TAK1 interaction and TAK1 ubiquitination are indispensable for TRAF3-regulated hepatic steatosis. In conclusion, hepatocyte TRAF3 promotes HFD-induced or genetic hepatic steatosis in a TAK1-dependent manner.
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Affiliation(s)
- Pi-Xiao Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China.,Animal Experiment Center/Animal Biosafety Level-III Laboratory, Wuhan University, Wuhan 430060, China
| | - Xiao-Jing Zhang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China.,Animal Experiment Center/Animal Biosafety Level-III Laboratory, Wuhan University, Wuhan 430060, China.,State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao 999078, China
| | - Pengcheng Luo
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan 430060, China.,Huangshi Central Hospital, Hubei Polytechnic University, Huangshi 435000, China
| | - Xi Jiang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China.,Animal Experiment Center/Animal Biosafety Level-III Laboratory, Wuhan University, Wuhan 430060, China
| | - Peng Zhang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China.,Animal Experiment Center/Animal Biosafety Level-III Laboratory, Wuhan University, Wuhan 430060, China
| | - Junhong Guo
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China.,Animal Experiment Center/Animal Biosafety Level-III Laboratory, Wuhan University, Wuhan 430060, China
| | - Guang-Nian Zhao
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China.,Animal Experiment Center/Animal Biosafety Level-III Laboratory, Wuhan University, Wuhan 430060, China
| | - Xueyong Zhu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China.,Animal Experiment Center/Animal Biosafety Level-III Laboratory, Wuhan University, Wuhan 430060, China
| | - Yan Zhang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China.,Animal Experiment Center/Animal Biosafety Level-III Laboratory, Wuhan University, Wuhan 430060, China
| | - Sijun Yang
- Animal Experiment Center/Animal Biosafety Level-III Laboratory, Wuhan University, Wuhan 430060, China
| | - Hongliang Li
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China.,Animal Experiment Center/Animal Biosafety Level-III Laboratory, Wuhan University, Wuhan 430060, China
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Albarbar B, Dunnill C, Georgopoulos NT. Regulation of cell fate by lymphotoxin (LT) receptor signalling: Functional differences and similarities of the LT system to other TNF superfamily (TNFSF) members. Cytokine Growth Factor Rev 2015; 26:659-71. [DOI: 10.1016/j.cytogfr.2015.05.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Revised: 05/10/2015] [Accepted: 05/13/2015] [Indexed: 12/11/2022]
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Chen Z, Canet MJ, Sheng L, Jiang L, Xiong Y, Yin L, Rui L. Hepatocyte TRAF3 promotes insulin resistance and type 2 diabetes in mice with obesity. Mol Metab 2015; 4:951-60. [PMID: 26909311 PMCID: PMC4731737 DOI: 10.1016/j.molmet.2015.09.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Revised: 09/18/2015] [Accepted: 09/25/2015] [Indexed: 01/07/2023] Open
Abstract
OBJECTIVE Metabolic inflammation is believed to promote insulin resistance and type 2 diabetes progression in obesity. TRAF3, a cytoplasmic signaling protein, has been known to mediate/modulate cytokine signaling in immune cells. The goal is to define the metabolic function of hepatic TRAF3 in the setting of obesity. METHODS Hepatocyte-specific TRAF3 knockout mice were generated using the loxp/albumin-cre system. Liver TRAF3 was deleted in adult obese mice via Cre adenoviral infection. Both high fat diet-induced and genetic obesity were examined. TRAF3 levels and insulin signaling were measured by immunoblotting. Insulin sensitivity, hepatic glucose production, and glucose metabolism were examined by glucose, insulin, and pyruvate tolerance tests. Hepatic steatosis was examined by Oil red O staining of liver sections and measuring liver triacylglycerol levels. RESULTS Liver TRAF3 levels were lower in the fasted states in normal mice, and were aberrantly higher in obese mice and in mice with streptozotocin-induced hyperglycemia. Glucose directly increased TRAF3 levels in primary hepatocytes. Hepatocyte-specific deletion of TRAF3 decreased hyperinsulinemia, insulin resistance, glucose intolerance, and hepatic steatosis in mice with either high fat diet-induced obesity or genetic obesity (ob/ob); conversely, in lean mice, adenovirus-mediated overexpression of TRAF3 in the liver induced hyperinsulinemia, insulin resistance, and glucose intolerance. Deletion of TRAF3 enhanced the ability of insulin to stimulate phosphorylation of Akt in hepatocytes, whereas overexpression of TRAF3 suppressed insulin signaling. CONCLUSIONS Glucose increases the levels of hepatic TRAF3. TRAF3 in turn promotes hyperglycemia through increasing hepatic glucose production, thus forming a glucose-TRAF3 reinforcement loop in the liver. This positive feedback loop may drive the progression of type 2 diabetes and nonalcoholic fatty liver disease in obesity.
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Key Words
- DKO, hepatocyte TRAF3 and leptin double knockout
- Diabetes
- GFP, green fluorescent protein
- GTT, glucose
- Gluconeogenesis
- HFD, high fat diet
- HKO, hepatocyte-specific TRAF3 knockout
- ITT, insulin
- Inflammation
- Insulin
- LD, lipid droplet
- LTT, lactate tolerance test
- Liver
- NAFLD, nonalcoholic fatty liver disease
- Obesity
- PTT, pyruvate
- TRAF3
- TRAF3, TNF receptor-associated factor 3
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Affiliation(s)
- Zheng Chen
- Department of Molecular & Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI 48109-0622, USA; School of Life Sciences, Northeast Normal University, Changchun, Jilin 130024, China
| | - Mark J Canet
- Department of Molecular & Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI 48109-0622, USA
| | - Liang Sheng
- Department of Molecular & Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI 48109-0622, USA
| | - Lin Jiang
- Department of Molecular & Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI 48109-0622, USA
| | - Yi Xiong
- Department of Molecular & Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI 48109-0622, USA
| | - Lei Yin
- Department of Molecular & Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI 48109-0622, USA
| | - Liangyou Rui
- Department of Molecular & Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI 48109-0622, USA; Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI 48109-0622, USA
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Chen Z, Shen H, Sun C, Yin L, Tang F, Zheng P, Liu Y, Brink R, Rui L. Myeloid cell TRAF3 promotes metabolic inflammation, insulin resistance, and hepatic steatosis in obesity. Am J Physiol Endocrinol Metab 2015; 308:E460-9. [PMID: 25628422 PMCID: PMC4360016 DOI: 10.1152/ajpendo.00470.2014] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Myeloid cells, particularly macrophages, mediate metabolic inflammation, thus promoting insulin resistance and metabolic disease progression in obesity. Numerous cytokines, toxic metabolites, damage-associated molecular patterns, and pathogen-associated molecular patterns are involved in activating macrophages via their cognate receptors in obesity. TRAF3 (TNF receptor-associated factor 3) is a common signaling molecule for these ligands/receptors and negatively regulates the proinflammatory NF-κB and MAPK pathways, but its metabolic activity is unknown. We here show that myeloid cell TRAF3 is required for metabolic inflammation and metabolic disease progression in obesity. Myeloid cell-specific deletion of TRAF3 significantly attenuated insulin resistance, hyperglycemia, hyperinsulinemia, glucose intolerance, and hepatic steatosis in mice with either genetic (ob/ob) or high-fat diet (HFD)-induced obesity. Myeloid cell-specific deletion of TRAF3 had the opposite effects on metabolic inflammation between obese and lean mice. It decreased the expression of proinflammatory cytokines in the liver and adipose tissue of obese mice and largely prevented HFD-induced inflammation in these metabolic tissues; by contrast, in lean mice, it increased the expression of proinflammatory cytokines in the liver and adipose tissue. These data suggest that, in obesity progression, myeloid TRAF3 functionally switches its activity from anti-inflammatory to proinflammatory modes, thereby coupling overnutrition to metabolic inflammation, insulin resistance, and metabolic disease.
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Affiliation(s)
- Zheng Chen
- Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, Michigan
| | - Hong Shen
- Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, Michigan
| | - Chengxin Sun
- Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, Michigan
| | - Lei Yin
- Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, Michigan
| | - Fei Tang
- Department of Surgery, University of Michigan Medical School, Ann Arbor, Michigan
| | - Pan Zheng
- Department of Surgery, University of Michigan Medical School, Ann Arbor, Michigan
| | - Yang Liu
- Department of Surgery, University of Michigan Medical School, Ann Arbor, Michigan
| | - Robert Brink
- Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
| | - Liangyou Rui
- Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, Michigan; Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan; and
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Lee S, Challa-Malladi M, Bratton SB, Wright CW. Nuclear factor-κB-inducing kinase (NIK) contains an amino-terminal inhibitor of apoptosis (IAP)-binding motif (IBM) that potentiates NIK degradation by cellular IAP1 (c-IAP1). J Biol Chem 2014; 289:30680-30689. [PMID: 25246529 PMCID: PMC4215246 DOI: 10.1074/jbc.m114.587808] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 09/03/2014] [Indexed: 12/20/2022] Open
Abstract
Activation of the noncanonical NF-κB pathway hinges on the stability of the NF-κB-inducing kinase (NIK), which is kept at low levels basally by a protein complex consisting of the E3 ubiquitin ligases cellular inhibitor of apoptosis 1 and 2 (c-IAP1/2) proteins and the tumor necrosis factor receptor-associated factors 2 and 3 (TRAF2/3). NIK is brought into close proximity to the c-IAPs through a TRAF2-TRAF3 bridge where TRAF2 recruits c-IAP1/2 and TRAF3 binds to NIK. However, it is not clear how the c-IAPs specifically recognize and ubiquitylate NIK in the complex. We have identified an IAP-binding motif (IBM) at the amino terminus of NIK. IBMs are utilized by a number of proapoptotic proteins to antagonize IAP function. Here, we utilize mutational studies to demonstrate that wild-type NIK is destabilized in the presence of c-IAP1, whereas the NIK IBM mutant is stable. NIK interacts with the second baculovirus IAP repeat (BIR2) domain of c-IAP1 via the IBM, and this interaction, in turn, provides substrate recognition for c-IAP1 mediated ubiquitylation and degradation of NIK. Furthermore, in the presence of the NIK IBM mutant, we observed an elevated processing of p100 to p52 followed by increased expression of NF-κB target genes. Together, these findings reveal the novel identification and function of the NIK IBM, which promotes c-IAP1-dependent ubiquitylation of NIK, resulting in optimal NIK turnover to ensure that noncanonical NF-κB signaling is off in the absence of an activating signal.
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Affiliation(s)
- Sunhee Lee
- Institute for Cellular and Molecular Biology, The University of Texas at Austin, Austin, Texas 78712, and
| | - Madhavi Challa-Malladi
- Institute for Cellular and Molecular Biology, The University of Texas at Austin, Austin, Texas 78712, and
| | - Shawn B Bratton
- Institute for Cellular and Molecular Biology, The University of Texas at Austin, Austin, Texas 78712, and; Department of Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Science Park, Smithville, Texas 78957
| | - Casey W Wright
- Institute for Cellular and Molecular Biology, The University of Texas at Austin, Austin, Texas 78712, and; Center for Molecular and Cellular Toxicology in the Division of Pharmacology and Toxicology, College of Pharmacy and The University of Texas at Austin, Austin, Texas 78712.
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42
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Bechill J, Muller WJ. Herpesvirus entry mediator (HVEM) attenuates signals mediated by the lymphotoxin β receptor (LTβR) in human cells stimulated by the shared ligand LIGHT. Mol Immunol 2014; 62:96-103. [PMID: 24980868 DOI: 10.1016/j.molimm.2014.06.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Revised: 06/06/2014] [Accepted: 06/08/2014] [Indexed: 01/13/2023]
Abstract
Signals mediated by members of the tumor necrosis factor receptor superfamily modulate a network of diverse processes including initiation of inflammatory responses and altering cell fate between pathways favoring survival and death. Although such pathways have been well-described for the TNF-α receptor, less is known about signaling induced by the TNF superfamily member LIGHT and how it is differentially altered by expression of its two receptors LTβR and HVEM in the same cell. We used cell lines with different relative expression of HVEM and LTβR to show that LIGHT-induced signals mediated by these receptors were associated with altered TRAF2 stability and RelA nuclear translocation. Production of the inflammatory chemokine CXCL10 was primarily mediated by LTβR. Higher expression of HVEM was associated with cell survival, while unopposed LTβR signaling favored pathways leading to apoptosis. Importantly, restoring HVEM expression in cells with low endogenous expression recapitulated the phenotype of cells with higher endogenous expression. Together, our data provide evidence that relative expression of HVEM and LTβR modulates canonical NF-κB and pro-apoptotic signals stimulated by LIGHT.
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Affiliation(s)
- John Bechill
- Department of Pediatrics, Northwestern University Feinberg School of Medicine, Northwestern University, 310 East Superior Street, Morton 4-685, Chicago, IL 60611 USA
| | - William J Muller
- Department of Pediatrics, Northwestern University Feinberg School of Medicine, Northwestern University, 310 East Superior Street, Morton 4-685, Chicago, IL 60611 USA.
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43
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Muro I, Fang G, Gardella KA, Mahajan IM, Wright CW. The TRAF3 adaptor protein drives proliferation of anaplastic large cell lymphoma cells by regulating multiple signaling pathways. Cell Cycle 2014; 13:1918-27. [PMID: 24739416 DOI: 10.4161/cc.28895] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
T cells devoid of tumor necrosis factor receptor associated factor-3 (Traf3) exhibit decreased proliferation, sensitivity to apoptosis, and an improper response to antigen challenge. We therefore hypothesized that TRAF3 is critical to the growth of malignant T cells. By suppressing TRAF3 protein in different cancerous T cells, we found that anaplastic large cell lymphoma (ALCL) cells require TRAF3 for proliferation. Since reducing TRAF3 results in aberrant activation of the noncanonical nuclear factor-κB (NF-κB) pathway, we prevented noncanonical NF-κB signaling by suppressing RelB together with TRAF3. This revealed that TRAF3 regulates proliferation independent of the noncanonical NF-κB pathway. However, suppression of NF-κB-inducing kinase (NIK) along with TRAF3 showed that high levels of NIK have a partial role in blocking cell cycle progression. Further investigation into the mechanism by which TRAF3 regulates cell division demonstrated that TRAF3 is essential for continued PI3K/AKT and JAK/STAT signaling. In addition, we found that while NIK is dispensable for controlling JAK/STAT activity, NIK is critical to regulating the PI3K/AKT pathway. Analysis of the phosphatase and tensin homolog (PTEN) showed that NIK modulates PI3K/AKT signaling by altering the localization of PTEN. Together our findings implicate TRAF3 as a positive regulator of the PI3K/AKT and JAK/STAT pathways and reveal a novel function for NIK in controlling PI3K/AKT activity. These results provide further insight into the role of TRAF3 and NIK in T cell malignancies and indicate that TRAF3 differentially governs the growth of B and T cell cancers.
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Affiliation(s)
- Israel Muro
- Division of Pharmacology and Toxicology and The Center for Molecular and Cellular Toxicology; College of Pharmacy and The Institute for Cellular and Molecular Biology; The University of Texas at Austin; Austin, TX USA
| | - Gloria Fang
- Division of Pharmacology and Toxicology and The Center for Molecular and Cellular Toxicology; College of Pharmacy and The Institute for Cellular and Molecular Biology; The University of Texas at Austin; Austin, TX USA
| | - Kacie A Gardella
- Division of Pharmacology and Toxicology and The Center for Molecular and Cellular Toxicology; College of Pharmacy and The Institute for Cellular and Molecular Biology; The University of Texas at Austin; Austin, TX USA
| | - Indra M Mahajan
- Division of Pharmacology and Toxicology and The Center for Molecular and Cellular Toxicology; College of Pharmacy and The Institute for Cellular and Molecular Biology; The University of Texas at Austin; Austin, TX USA
| | - Casey W Wright
- Division of Pharmacology and Toxicology and The Center for Molecular and Cellular Toxicology; College of Pharmacy and The Institute for Cellular and Molecular Biology; The University of Texas at Austin; Austin, TX USA
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Xiu Y, Xu H, Zhao C, Li J, Morita Y, Yao Z, Xing L, Boyce BF. Chloroquine reduces osteoclastogenesis in murine osteoporosis by preventing TRAF3 degradation. J Clin Invest 2013; 124:297-310. [PMID: 24316970 DOI: 10.1172/jci66947] [Citation(s) in RCA: 113] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Accepted: 10/03/2013] [Indexed: 12/20/2022] Open
Abstract
The cytokines RANKL and TNF activate NF-κB signaling in osteoclast precursors (OCPs) to induce osteoclast (OC) formation. Conversely, TNF can limit OC formation through NF-κB p100, which acts as an inhibitor, and TNF receptor-associated receptor 3 (TRAF3); however, a role for TRAF3 in RANKL-mediated OC formation is unknown. We found that TRAF3 limits RANKL-induced osteoclastogenesis by suppressing canonical and noncanonical NF-κB signaling. Conditional OC-specific Traf3-KO (cKO) mice had mild osteoporosis and increased OC formation. RANKL induced TRAF3 degradation via the lysosome/autophagy system. The autophagy/lysosome inhibitor chloroquine reduced RANKL-induced OC formation and function by increasing TRAF3 expression in OCPs in vitro and in vivo. Although chloroquine had no effect on basal bone resorption, it inhibited parathyroid hormone- and ovariectomy-induced OC activation in WT, but not cKO, mice. Deletion of the transcription factor gene Relb resulted in increased TRAF3 expression in OCPs, which was associated with decreased RANKL-induced TRAF3 degradation. RelB directly increased expression of BECN1, a key autophagy regulator, by binding to its promoter. These data indicate that autophagic/lysosomal degradation of TRAF3 is an important step in RANKL-induced NF-κB activation in OCPs. Furthermore, treatments that increase TRAF3 levels in OCPs, including pharmacological inhibition of its degradation with compounds such as chloroquine, may limit bone destruction in common bone diseases.
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45
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Xue B, Uversky VN. Intrinsic disorder in proteins involved in the innate antiviral immunity: another flexible side of a molecular arms race. J Mol Biol 2013; 426:1322-50. [PMID: 24184279 DOI: 10.1016/j.jmb.2013.10.030] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Revised: 09/25/2013] [Accepted: 10/23/2013] [Indexed: 02/08/2023]
Abstract
We present a comprehensive bioinformatics analysis of the abundance and roles of intrinsic disorder in human proteins involved in the antiviral innate immune response. The commonness of intrinsic disorder and disorder-based binding sites is evaluated in 840 human antiviral proteins and proteins associated with innate immune response and defense response to virus. Among the mechanisms engaged in the innate immunity to viral infection are three receptor-based pathways activated by the specific recognition of various virus-associated patterns by several retinoic acid-inducible gene I-like receptors, toll-like receptors, and nucleotide oligomerization domain-like receptors. These modules are tightly regulated and intimately interconnected being jointly controlled via a complex set of protein-protein interactions. Focused analysis of the major players involved in these three pathways is performed to illustrate the roles of protein intrinsic disorder in controlling and regulating the innate antiviral immunity. We mapped the disorder into an integrated network of receptor-based pathways of human innate immunity to virus infection and demonstrate that proteins involved in regulation and execution of these innate immunity pathways possess substantial amount of intrinsic disorder. Disordered regions are engaged in a number of crucial functions, such as protein-protein interactions and interactions with other partners including nucleic acids and other ligands, and are enriched in posttranslational modification sites. Therefore, host cells use numerous advantages of intrinsically disordered proteins and regions to fight flexible invaders and viruses and to successfully overcome the viral invasion.
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Affiliation(s)
- Bin Xue
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Vladimir N Uversky
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA; USF Health Byrd Alzheimer's Research Institute, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA; Institute for Biological Instrumentation, Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia.
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Noncanonical Nuclear Factor Kappa B (NF-κB) Signaling and Potential for Therapeutics in Sepsis. Curr Infect Dis Rep 2013; 15:364-71. [PMID: 23975688 DOI: 10.1007/s11908-013-0362-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
NF-κB signaling plays a central role in the pathophysiology of severe sepsis and septic shock. Despite tremendous and missed efforts, novel therapeutics for severe sepsis and septic shock are still needed. Many drugs have been designed to target the canonical NF-κB signaling pathway with limited success, potentially due to the nonspecificity of the drugs for other kinases and the interaction of canonical signaling with other pathways. Here, we review the canonical and noncanonical signaling pathways of NF-κB, the cross talk and negative regulation of the two pathways, and the potential for therapeutics arising from the noncanonical NF-κB pathway in relation to the pathophysiology of septic shock.
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Abstract
The tumor necrosis factor receptor (TNF-R)-associated factor (TRAF) family of intracellular proteins were originally identified as signaling adaptors that bind directly to the cytoplasmic regions of receptors of the TNF-R superfamily. The past decade has witnessed rapid expansion of receptor families identified to employ TRAFs for signaling. These include Toll-like receptors (TLRs), NOD-like receptors (NLRs), RIG-I-like receptors (RLRs), T cell receptor, IL-1 receptor family, IL-17 receptors, IFN receptors and TGFβ receptors. In addition to their role as adaptor proteins, most TRAFs also act as E3 ubiquitin ligases to activate downstream signaling events. TRAF-dependent signaling pathways typically lead to the activation of nuclear factor-κBs (NF-κBs), mitogen-activated protein kinases (MAPKs), or interferon-regulatory factors (IRFs). Compelling evidence obtained from germ-line and cell-specific TRAF-deficient mice demonstrates that each TRAF plays indispensable and non-redundant physiological roles, regulating innate and adaptive immunity, embryonic development, tissue homeostasis, stress response, and bone metabolism. Notably, mounting evidence implicates TRAFs in the pathogenesis of human diseases such as cancers and autoimmune diseases, which has sparked new appreciation and interest in TRAF research. This review presents an overview of the current knowledge of TRAFs, with an emphasis on recent findings concerning TRAF molecules in signaling and in human diseases.
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Affiliation(s)
- Ping Xie
- Department of Cell Biology and Neuroscience, Rutgers University, 604 Allison Road, Nelson Labs Room B336, Piscataway, New Jersey 08854.
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Boulianne B, Porfilio EA, Pikor N, Gommerman JL. Lymphotoxin-sensitive microenvironments in homeostasis and inflammation. Front Immunol 2012; 3:243. [PMID: 22866054 PMCID: PMC3408564 DOI: 10.3389/fimmu.2012.00243] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2012] [Accepted: 07/18/2012] [Indexed: 01/04/2023] Open
Abstract
Stromal cell microenvironments within lymphoid tissues are designed to support immune cell homeostasis and to regulate ongoing immune responses to pathogens. Such stromal cell networks have been best characterized within lymphoid tissues including the spleen and peripheral lymph nodes, and systems for classifying stromal cell phenotypes and functions are emerging. In response to inflammation, stromal cell networks within lymphoid tissues change in order to accommodate and regulate lymphocyte activation. Local inflammation in non-lymphoid tissues can also induce de novo formation of lymphoid aggregates, which we term here “follicle-like structures.” Of note, the stromal cell networks that underpin such follicles are not as well characterized and may be different depending on the anatomical site. However, one common element that is integral to the maintenance of stromal cell environments, either in lymphoid tissue or in extra-lymphoid sites, is the constitutive regulation of stromal cell phenotype and/or function by the lymphotoxin (LT) pathway. Here we discuss how the LT pathway influences stromal cell environments both in homeostasis and in the context of inflammation in lymphoid and non-lymphoid tissues.
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Affiliation(s)
- Bryant Boulianne
- Department of Immunology, University of Toronto, Toronto, ON, Canada
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Mishra R, Chhatbar C, Singh SK. HIV-1 Tat C-mediated regulation of tumor necrosis factor receptor-associated factor-3 by microRNA 32 in human microglia. J Neuroinflammation 2012; 9:131. [PMID: 22709905 PMCID: PMC3418571 DOI: 10.1186/1742-2094-9-131] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2012] [Accepted: 06/18/2012] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND HIV-1 Tat protein is known to be associated with neuroinflammation, a condition that develops in almost half of patients infected with HIV-1. HIV-1 Tat can alter glial neuroprotective functions, leading to neurotoxicity within the CNS. HIV-1 Tat is known to be secreted from productively infected cells and can affect neighboring uninfected cells by modulating cellular gene expression in a bystander fashion. METHODS We were interested to study whether exogenous exposure to HIV-1 Tat-C protein perturbs the microRNA (miRNA) expression profile of human microglial cells, leading to altered protein expression. We used protein expression and purification, miRNA overexpression, miRNA knockdown, transfection, site-directed mutagenesis, real-time PCR, luciferase assay and western blotting techniques to perform our study. RESULTS HIV-1 Tat-C treatment of human microglial cells resulted in a dose-dependent increase in miR-32 expression. We found that tumor necrosis factor-receptor-associated factor 3 TRAF3) is a direct target for miR-32, and overexpression of miR-32 in CHME3 cells decreased TRAF3 both at the mRNA and the protein level. Recovery of TRAF3 protein expression after transfection of anti-miR-32 and the results of the luciferase reporter assay provided direct evidence of TRAF3 regulation by miR-32. We found that the regulation of interferon regulatory factor 3 (IRF3) and IRF7 is controlled by cellular levels of TRAF3 protein in microglial cells, as after overexpression of miR-32 and application of anti-miR-32, expression levels of IRF3 and IRF7 were inversely regulated by expression levels of TRAF3. Thus, our results suggest a novel miRNA mediated mechanism for regulation of TRAF3 in human microglial cells exposed to HIV-1 Tat C protein. These results may help to elucidate the detrimental neuroinflammatory consequences of HIV-1 Tat C protein in bystander fashion. CONCLUSION HIV-1 Tat protein can modulate TRAF3 expression through miRNA mediated pathway and can change the downstream expression of IRF3 and IRF7. This study demonstrates a novel mechanism of HIV-1 Tat C protein-mediated perturbation of miRNA, resulting in dysregulation of cellular TRAF3.
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Affiliation(s)
- Ritu Mishra
- Laboratory of Neurovirology and Inflammation Biology, Centre for Cellular and Molecular Biology (CCMB), Council of Scientific and Industrial Research (CSIR), Uppal Road, Hyderabad 500007, India
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Liu F, Bardhan K, Yang D, Thangaraju M, Ganapathy V, Waller JL, Liles GB, Lee JR, Liu K. NF-κB directly regulates Fas transcription to modulate Fas-mediated apoptosis and tumor suppression. J Biol Chem 2012; 287:25530-40. [PMID: 22669972 DOI: 10.1074/jbc.m112.356279] [Citation(s) in RCA: 111] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Fas is a member of the death receptor family. Stimulation of Fas leads to induction of apoptotic signals, such as caspase 8 activation, as well as "non-apoptotic" cellular responses, notably NF-κB activation. Convincing experimental data have identified NF-κB as a critical promoter of cancer development, creating a solid rationale for the development of antitumor therapy that suppresses NF-κB activity. On the other hand, compelling data have also shown that NF-κB activity enhances tumor cell sensitivity to apoptosis and senescence. Furthermore, although stimulation of Fas activates NF-κB, the function of NF-κB in the Fas-mediated apoptosis pathway remains largely undefined. In this study, we observed that deficiency of either Fas or FasL resulted in significantly increased incidence of 3-methylcholanthrene-induced spontaneous sarcoma development in mice. Furthermore, Fas-deficient mice also exhibited significantly greater incidence of azoxymethane and dextran sodium sulfate-induced colon carcinoma. In addition, human colorectal cancer patients with high Fas protein in their tumor cells had a longer time before recurrence occurred. Engagement of Fas with FasL triggered NF-κB activation. Interestingly, canonical NF-κB was found to directly bind to the FAS promoter. Blocking canonical NF-κB activation diminished Fas expression, whereas blocking alternate NF-κB increased Fas expression in human carcinoma cells. Moreover, although canonical NF-κB protected mouse embryo fibroblast (MEF) cells from TNFα-induced apoptosis, knocking out p65 diminished Fas expression in MEF cells, resulting in inhibition of FasL-induced caspase 8 activation and apoptosis. In contrast, knocking out p52 increased Fas expression in MEF cells. Our observations suggest that canonical NF-κB is a Fas transcription activator and alternate NF-κB is a Fas transcription repressor, and Fas functions as a suppressor of spontaneous sarcoma and colon carcinoma.
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Affiliation(s)
- Feiyan Liu
- Department of Biochemistry and Molecular Biology, Georgia Health Sciences University, Augusta, Georgia 30912, USA
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