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Pontrelli P, Gigante M, Spadaccino F, Netti GS, Saldarelli M, Balducci L, Gigante M, Battaglia M, Storkus WJ, Castellano G, Stallone G, Gesualdo L, Ranieri E. CD40 Cross-Linking Induces Migration of Renal Tumor Cell through Nuclear Factor of Activated T Cells (NFAT) Activation. Int J Mol Sci 2021; 22:ijms22168871. [PMID: 34445576 PMCID: PMC8396205 DOI: 10.3390/ijms22168871] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 08/10/2021] [Accepted: 08/13/2021] [Indexed: 12/11/2022] Open
Abstract
CD40 crosslinking plays an important role in regulating cell migration, adhesion and proliferation in renal cell carcinoma (RCC). CD40/CD40L interaction on RCC cells activates different intracellular pathways but the molecular mechanisms leading to cell scattering are not yet clearly defined. Aim of our study was to investigate the main intracellular pathways activated by CD40 ligation and their specific involvement in RCC cell migration. CD40 ligation increased the phosphorylation of extracellular signal-regulated kinase (ERK), c-Jun NH (2)-terminal kinase (JNK) and p38 MAPK. Furthermore, CD40 crosslinking activated different transcriptional factors on RCC cell lines: AP-1, NFkB and some members of the Nuclear Factor of Activated T cells (NFAT) family. Interestingly, the specific inhibition of NFAT factors by cyclosporine A, completely blocked RCC cell motility induced by CD40 ligation. In tumor tissue, we observed a higher expression of NFAT factors and in particular an increased activation and nuclear migration of NFATc4 on RCC tumor tissues belonging to patients that developed metastases when compared to those who did not. Moreover, CD40-CD40L interaction induced a cytoskeleton reorganization and increased the expression of integrin β1 on RCC cell lines, and this effect was reversed by cyclosporine A and NFAT inhibition. These data suggest that CD40 ligation induces the activation of different intracellular signaling pathways, in particular the NFATs factors, that could represent a potential therapeutic target in the setting of patients with metastatic RCC.
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Affiliation(s)
- Paola Pontrelli
- Department of Emergency and Organ Transplantation, Divisions of Nephrology and Urology, University of Bari, Piazza G. Cesare 11, 70124 Bari, Italy; (P.P.); (M.B.); (L.G.)
| | - Margherita Gigante
- Department of Medical and Surgical Sciences, Divisions of Clinical Pathology and Nephrology, University of Foggia, Policlinico Riuniti, Viale L. Pinto, 71100 Foggia, Italy; (M.G.); (F.S.); (G.S.N.); (M.S.); (L.B.); (M.G.); (G.C.); (G.S.)
| | - Federica Spadaccino
- Department of Medical and Surgical Sciences, Divisions of Clinical Pathology and Nephrology, University of Foggia, Policlinico Riuniti, Viale L. Pinto, 71100 Foggia, Italy; (M.G.); (F.S.); (G.S.N.); (M.S.); (L.B.); (M.G.); (G.C.); (G.S.)
| | - Giuseppe Stefano Netti
- Department of Medical and Surgical Sciences, Divisions of Clinical Pathology and Nephrology, University of Foggia, Policlinico Riuniti, Viale L. Pinto, 71100 Foggia, Italy; (M.G.); (F.S.); (G.S.N.); (M.S.); (L.B.); (M.G.); (G.C.); (G.S.)
| | - Marilisa Saldarelli
- Department of Medical and Surgical Sciences, Divisions of Clinical Pathology and Nephrology, University of Foggia, Policlinico Riuniti, Viale L. Pinto, 71100 Foggia, Italy; (M.G.); (F.S.); (G.S.N.); (M.S.); (L.B.); (M.G.); (G.C.); (G.S.)
| | - Luigi Balducci
- Department of Medical and Surgical Sciences, Divisions of Clinical Pathology and Nephrology, University of Foggia, Policlinico Riuniti, Viale L. Pinto, 71100 Foggia, Italy; (M.G.); (F.S.); (G.S.N.); (M.S.); (L.B.); (M.G.); (G.C.); (G.S.)
| | - Maddalena Gigante
- Department of Medical and Surgical Sciences, Divisions of Clinical Pathology and Nephrology, University of Foggia, Policlinico Riuniti, Viale L. Pinto, 71100 Foggia, Italy; (M.G.); (F.S.); (G.S.N.); (M.S.); (L.B.); (M.G.); (G.C.); (G.S.)
| | - Michele Battaglia
- Department of Emergency and Organ Transplantation, Divisions of Nephrology and Urology, University of Bari, Piazza G. Cesare 11, 70124 Bari, Italy; (P.P.); (M.B.); (L.G.)
| | - Walter J. Storkus
- Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA;
| | - Giuseppe Castellano
- Department of Medical and Surgical Sciences, Divisions of Clinical Pathology and Nephrology, University of Foggia, Policlinico Riuniti, Viale L. Pinto, 71100 Foggia, Italy; (M.G.); (F.S.); (G.S.N.); (M.S.); (L.B.); (M.G.); (G.C.); (G.S.)
| | - Giovanni Stallone
- Department of Medical and Surgical Sciences, Divisions of Clinical Pathology and Nephrology, University of Foggia, Policlinico Riuniti, Viale L. Pinto, 71100 Foggia, Italy; (M.G.); (F.S.); (G.S.N.); (M.S.); (L.B.); (M.G.); (G.C.); (G.S.)
| | - Loreto Gesualdo
- Department of Emergency and Organ Transplantation, Divisions of Nephrology and Urology, University of Bari, Piazza G. Cesare 11, 70124 Bari, Italy; (P.P.); (M.B.); (L.G.)
| | - Elena Ranieri
- Department of Medical and Surgical Sciences, Divisions of Clinical Pathology and Nephrology, University of Foggia, Policlinico Riuniti, Viale L. Pinto, 71100 Foggia, Italy; (M.G.); (F.S.); (G.S.N.); (M.S.); (L.B.); (M.G.); (G.C.); (G.S.)
- Correspondence: ; Tel.: +39-0881-732611; Fax: +39-0881-732627
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2
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Ando S, Osanai D, Takahashi K, Nakamura S, Shimazawa M, Hara H. Survival motor neuron protein regulates oxidative stress and inflammatory response in microglia of the spinal cord in spinal muscular atrophy. J Pharmacol Sci 2020; 144:204-211. [PMID: 33070839 DOI: 10.1016/j.jphs.2020.09.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 08/27/2020] [Accepted: 09/02/2020] [Indexed: 01/27/2023] Open
Abstract
The deficiency of survival motor neuron (SMN) protein can result in the onset of spinal muscular atrophy (SMA), an autosomal recessive disorder characterized by a progressive loss of motor neurons and skeletal muscle atrophy. The mechanism underlying SMA pathology remains unclear. Here, we demonstrate that SMN protein regulates oxidative stress and inflammatory response in microglia. Antisense oligonucleotide, which increases SMN protein expression (SMN-ASO), attenuated SMA model mice phenotypes and suppressed the activation of microglia in the spinal cord. The expression of oxidative stress marker in microglia was decreased by SMN-ASO injection in SMA model mice. Increased reactive oxygen species production and subsequent antioxidative stress reaction was observed in SMN protein-depleted RAW264.7. Furthermore, nuclear factor kappa B (NFκB) and c-Jun amino terminal kinase (JNK) signaling, which mainly mediate the inflammatory response, are activated in SMN protein-depleted RAW264.7. Tumor necrosis factor-α (TNF-α) production is also increased in SMN protein-depleted RAW264.7. These findings suggest that SMN protein regulates oxidative stress and inflammatory response in microglia, supporting current claims that microglia can be an effective target for SMA therapy.
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Affiliation(s)
- Shiori Ando
- Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, Gifu, Japan
| | - Daiki Osanai
- Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, Gifu, Japan
| | - Kei Takahashi
- Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, Gifu, Japan
| | - Shinsuke Nakamura
- Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, Gifu, Japan.
| | - Masamitsu Shimazawa
- Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, Gifu, Japan
| | - Hideaki Hara
- Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, Gifu, Japan
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3
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Abstract
Tumor necrosis factor receptor (TNFR)-related factors (TRAFs) are important linker molecules in the tumor necrosis factor superfamily (TNFSF) and the Toll-like/interleukin-1 receptor (TLR/ILR) superfamily. There are seven members: TRAF1-TRAF7, among those members, tumor necrosis factor receptor-associated factor 6 (TRAF6) is upregulated in various tumors, which has been related to tumorigenesis and development. With the in-depth study of the relationship between TRAF6 and different types of tumors, TRAF6 has oncogenic characteristics involved in tumorigenesis, tumor development, invasion, and metastasis through various signaling pathways, therefore, targeting TRAF6 has provided a novel strategy for tumor treatment. This review summarizes and analyzes the role of TRAF6 in tumorigenesis and tumor development in combination with the current research on TRAF6 and tumors.
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4
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Yuan Y, Li B, Kuang Y, Ni S, Zhuge A, Yang J, Lv L, Gu S, Yan R, Li Y, Wang K, Yang L, Zhu X, Wu J, Bian X, Li L. The fiber metabolite butyrate reduces gp130 by targeting TRAF5 in colorectal cancer cells. Cancer Cell Int 2020; 20:212. [PMID: 32518521 PMCID: PMC7271451 DOI: 10.1186/s12935-020-01305-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Accepted: 05/28/2020] [Indexed: 11/10/2022] Open
Abstract
Background Dietary fiber is effective for colorectal cancer (CRC) treatment. Interleukin-6 (IL-6) and its adaptors are potential targets for CRC therapy. Butyrate, a metabolite of dietary fiber, is a new, highly safe type of targeted drug. Methods In this study, Cell Counting Kit-8 cell viability and wound healing assays, western blot analysis, immunofluorescence staining, and xenograft tumor mouse models were used to evaluate the anticancer effect of butyrate and its possible mechanism in vivo and in vitro. Results Dietary fiber and sodium butyrate (NaB) decreased CRC burden by decreasing IL-6 receptor gp130 and blocking IL-6/JAK2/STAT3 axis activation in vitro and in vivo. Furthermore, NaB reduced the gp130 protein level by regulating its degradation rate via targeting TRAF5. Conclusions The fiber metabolite butyrate inhibits CRC development by reducing gp130 via TRAF5.
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Affiliation(s)
- Yin Yuan
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003 China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Bo Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003 China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Yanbin Kuang
- Department of Respiratory Medicine, School of Medicine, Ren Ji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Shuo Ni
- Department of Orthopedics, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
| | - Aoxiang Zhuge
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003 China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Jing Yang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003 China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Longxian Lv
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003 China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Silan Gu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003 China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Ren Yan
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003 China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Yating Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003 China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Kaicen Wang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003 China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Liya Yang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003 China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Xueling Zhu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003 China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Jingjing Wu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003 China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Xiaoyuan Bian
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003 China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Lanjuan Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003 China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
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5
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Yang M, Han R, Ni LY, Luo XC, Li AX, Dan XM, Tsim KWK, Li YW. Molecular characteristics and function study of TNF receptor-associated factor 5 from grouper (Epinephelus coioides). FISH & SHELLFISH IMMUNOLOGY 2019; 87:730-736. [PMID: 30769079 DOI: 10.1016/j.fsi.2019.02.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 01/02/2019] [Accepted: 02/11/2019] [Indexed: 06/09/2023]
Abstract
Tumor necrosis factor receptor-associated factor 5 (TRAF5) is a key adapter molecule that participates in numerous signaling pathways. The function of TRAF5 in fish is largely unknown. In the present study, a TRAF5 cDNA sequence (EcTRAF5) was identified in grouper (Epinephelus coioides). Similar to its mammalian counterpart, EcTRAF5 contained an N-terminal RING finger domain, a zinc finger domain, a C-terminal TRAF domain, including a coiled-coil domain and a MATH domain. The EcTRAF5 protein shared relatively low sequence identity with that of other species, but clustered with TRAF5 sequences from other fish. Real-time PCR analysis revealed that EcTRAF5 mRNA was broadly expressed in numerous tissues, with relatively high expression in skin, hindgut, and head kidney. Additionally, the expression of EcTRAF5 was up-regulated in gills and head kidney after infection with Cryptocaryon irritans. Intracellular localization analysis demonstrated that the full-length EcTRAF5 protein was uniformly distributed in the cytoplasm; while a deletion mutant of the coiled-coil domain of EcTRAF5 was observed uniformly distributed in the cytoplasm and the nucleus. After exogenous expression in HEK293T cells, TRAF5 significantly activated NF-κB. The deletion of the EcTRAF5 RING domain or of the zinc finger domain dramatically impaired its ability to activate NF-κB, implying that the RING domain and the zinc finger domain are required for EcTRAF5 signaling.
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Affiliation(s)
- Man Yang
- Joint Laboratory of Guangdong Province and Hong Kong Regions on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Rui Han
- Joint Laboratory of Guangdong Province and Hong Kong Regions on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Lu-Yun Ni
- Joint Laboratory of Guangdong Province and Hong Kong Regions on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Xiao-Chun Luo
- School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, 510006, China
| | - An-Xing Li
- State Key Laboratory of Biocontrol/Guangdong Provincial Key Lab for Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, Guangdong Province, PR China
| | - Xue-Ming Dan
- Joint Laboratory of Guangdong Province and Hong Kong Regions on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China.
| | - Karl Wah-Keung Tsim
- Joint Laboratory of Guangdong Province and Hong Kong Regions on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China; Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Yan-Wei Li
- Joint Laboratory of Guangdong Province and Hong Kong Regions on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China.
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6
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TRAF6 Silencing Attenuates Multiple Myeloma Cell Adhesion to Bone Marrow Stromal Cells. Int J Mol Sci 2019; 20:ijms20030702. [PMID: 30736330 PMCID: PMC6387103 DOI: 10.3390/ijms20030702] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 01/30/2019] [Accepted: 01/30/2019] [Indexed: 01/03/2023] Open
Abstract
The bone marrow (BM) microenvironment plays an important role in supporting proliferation, survival and drug resistance of Multiple Myeloma (MM) cells. MM cells adhere to bone marrow stromal cells leading to the activation of tumour-promoting signaling pathways. Activation of the NFκB pathway, in particular, is central to the pathogenesis of MM. Tumour necrosis factor receptor-associated factor 6 (TRAF6) is a key mediator of NFκB activation and has previously been highlighted as a potential therapeutic target in MM. Here, we demonstrate that adherence of MM cell lines to stromal cells results in a reciprocal increase in TRAF6 expression. Knockdown of TRAF6 expression attenuates the ability of MM cells to bind to stromal cells and this is associated with a decrease in NFκB-induced expression of the adhesion molecules ICAM1 and VCAM1. Finally, we show that knockdown of TRAF6 sensitizes MM cells to treatment with bortezomib when co-cultured with stromal cells. Inhibiting TRAF6 represents a promising strategy to target MM cells in the BM microenvironment.
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7
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Bolzoni M, Toscani D, Storti P, Marchica V, Costa F, Giuliani N. Possible targets to treat myeloma-related osteoclastogenesis. Expert Rev Hematol 2018; 11:325-336. [PMID: 29495905 DOI: 10.1080/17474086.2018.1447921] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
INTRODUCTION Bone destruction is the hallmark of multiple myeloma (MM). About 80% of MM patients at diagnosis presents myeloma bone disease (MBD) leading to bone pain and pathological fractures, significantly affecting patients' quality of life. Bisphosphonates are the treatment of choice for MBD, but osteolytic lesions remain a critical issue in the current management of MM patients. Several studies clarified the mechanisms involved in MM-induced osteoclast formation and activation, leading to the identification of new possible targets and the development of better bone-directed therapies, that are discussed in this review. Areas covered: This review summarizes the latest advances in the knowledge of the pathophysiology of the osteoclast formation and activation induced by MM cells, and the new therapeutic targets identified. Recently, neutralizing antibodies (i.e. denosumab, siltuximab, daratumumab), as well as recombinant fusion proteins, and receptor molecular inhibitors, have been developed to block these targets. Clinical trials testing their anti-MBD potential are ongoing. The emerging role of exosomes and microRNAs in the regulation of osteoclast differentiation has been also discussed. Expert commentary: Although further studies are needed to arrive at a clinical approving, the basis for the development of better bone-directed therapies has been established.
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Affiliation(s)
- Marina Bolzoni
- a Department Medicine and Surgery , University of Parma , Parma , Italy
| | - Denise Toscani
- a Department Medicine and Surgery , University of Parma , Parma , Italy
| | - Paola Storti
- a Department Medicine and Surgery , University of Parma , Parma , Italy
| | | | - Federica Costa
- a Department Medicine and Surgery , University of Parma , Parma , Italy
| | - Nicola Giuliani
- a Department Medicine and Surgery , University of Parma , Parma , Italy.,b Hematology and BMT Center , "Azienda Ospedaliero-Universitaria di Parma" , Parma , Italy
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8
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Wu H, Hao A, Cui H, Wu W, Yang H, Hu B, Li P. TRAF6 expression is associated with poorer prognosis and high recurrence in urothelial bladder cancer. Oncol Lett 2017; 14:2432-2438. [PMID: 28781679 DOI: 10.3892/ol.2017.6427] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2015] [Accepted: 04/13/2017] [Indexed: 01/03/2023] Open
Abstract
The aim of the present study was to investigate the clinical significance of TNF receptor-associated factor 6 (TRAF6) expression in urothelial bladder cancer. TRAF6 expression was detected by immunohistochemistry in 126 samples of patients with urothelial bladder cancer. The association between clinicopathological factors and TRAF6 expression was analyzed by χ2 test. The association between TRAF6 expression, overall survival rate and the recurrence-free survival rate was evaluated in univariate analysis with Kaplan-Meier test and in multivariate analysis with Cox-regression model. In the cohort tested, the rate of high TRAF6 expression was 61.9% (78/126). TRAF6 expression was demonstrated to be significantly associated with positive metastasis (P=0.001) with χ2 test. Furthermore, TRAF6 expression was demonstrated to be associated with overall survival rate (P=0.016) and recurrence-free survival rate (P=0.016). With Cox-regression model, it was indicate that TRAF6 high expression was an independent predictive factor of poor prognosis (P=0.037) and high recurrence (P=0.011). High TRAF6 expression may predict unfavorable prognosis and high recurrence in urothelial bladder cancer, indicating that TRAF6 may be a potential and promising therapeutic target in urothelial bladder cancer.
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Affiliation(s)
- Hanli Wu
- Department of Nephrology, Yidu Central Hospital of Weifang, Weifang, Shandong 262500, P.R. China
| | - Aixia Hao
- Department of Nephrology, Yidu Central Hospital of Weifang, Weifang, Shandong 262500, P.R. China
| | - Honghong Cui
- Department of Nephrology, Yidu Central Hospital of Weifang, Weifang, Shandong 262500, P.R. China
| | - Wenbin Wu
- Department of Nephrology, Yidu Central Hospital of Weifang, Weifang, Shandong 262500, P.R. China
| | - Huanrong Yang
- Department of Nephrology, Yidu Central Hospital of Weifang, Weifang, Shandong 262500, P.R. China
| | - Baohong Hu
- East District of Shandong Provincial Hospital of Shandong Univeristy, Jinan, Shandong 250014, P.R. China.,Department of Medical Oncology, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai, Shandong 264000, P.R. China
| | - Peng Li
- Department of Medical Oncology, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai, Shandong 264000, P.R. China
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9
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Huang H, Sun Z, Wang X, Liu X, Na W, Xu R, Ding R, Liu H. The effect of marrow stromal cells on TRAF6 expression levels in myeloma cells. Oncol Lett 2017; 14:1464-1470. [PMID: 28789366 PMCID: PMC5529903 DOI: 10.3892/ol.2017.6322] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 01/06/2017] [Indexed: 12/23/2022] Open
Abstract
Tumor necrosis factor receptor-associated factor 6 (TRAF6) is an important E3 ubiquitin ligase, which is key to immunity. TRAF6 has been implicated in the invasive growth and metastasis of various types of cancer, including squamous cell carcinoma, gastric cancer, myelodysplastic syndromes and acute myeloid leukemia. In the present study, associations between multiple myeloma (MM) and TRAF6, its downstream component nuclear factor-κB (NF-κB) and bone marrow stromal cells (MSC) were investigated. The TRAF6 protein expression levels of 18 patients were positively correlated with the protein levels of β-2 microglobulin (r2=0.3472; P=0.01) and negatively correlated with albumin protein levels (r2=0.5494; P=0.0004). In vitro expression of the TRAF6 protein, phosphorylated transcription factor p65 and phosphorylated p100 in myeloma cell lines was induced by MSCs from patients with MM. In addition, the in vitro expression of TRAF6 was associated with an enhanced proliferation rate of myeloma cells, which was blocked by silencing TRAF6 using small interfering RNA. Due to the association between the TRAF6-NF-κB signaling pathway in myeloma cells and MSCs, this signaling pathway may be a useful prognostic and therapeutic target in myeloma.
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Affiliation(s)
- Hongming Huang
- Department of Hematology, The Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Zhongwei Sun
- Department of Hematology, The Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Xudong Wang
- Surgical Comprehensive Laboratory, The Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Xinxin Liu
- Department of Hematology, The Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Wenxiu Na
- Department of Hematology, The Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Ruirong Xu
- Department of Hematology, The Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Runsheng Ding
- Department of Hematology, The Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Hong Liu
- Department of Hematology, The Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
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10
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Chen H, Li M, Sanchez E, Wang CS, Lee T, Soof CM, Casas CE, Cao J, Xie C, Udd KA, DeCorso K, Tang GY, Spektor TM, Berenson JR. Combined TRAF6 Targeting and Proteasome Blockade Has Anti-myeloma and Anti-Bone Resorptive Effects. Mol Cancer Res 2017; 15:598-609. [PMID: 28122920 DOI: 10.1158/1541-7786.mcr-16-0293] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 12/06/2016] [Accepted: 12/26/2016] [Indexed: 11/16/2022]
Affiliation(s)
- Haiming Chen
- Institute for Myeloma & Bone Cancer Research, West Hollywood, California
| | - Mingjie Li
- Institute for Myeloma & Bone Cancer Research, West Hollywood, California
| | - Eric Sanchez
- Institute for Myeloma & Bone Cancer Research, West Hollywood, California
| | - Cathy S Wang
- Institute for Myeloma & Bone Cancer Research, West Hollywood, California
| | - Tiffany Lee
- Institute for Myeloma & Bone Cancer Research, West Hollywood, California
| | - Camilia M Soof
- Institute for Myeloma & Bone Cancer Research, West Hollywood, California
| | - Christian E Casas
- Institute for Myeloma & Bone Cancer Research, West Hollywood, California
| | - Jasmin Cao
- Institute for Myeloma & Bone Cancer Research, West Hollywood, California
| | - Colin Xie
- Institute for Myeloma & Bone Cancer Research, West Hollywood, California
| | - Kyle A Udd
- Institute for Myeloma & Bone Cancer Research, West Hollywood, California
| | - Kevin DeCorso
- Institute for Myeloma & Bone Cancer Research, West Hollywood, California
| | - George Y Tang
- Institute for Myeloma & Bone Cancer Research, West Hollywood, California
| | - Tanya M Spektor
- Institute for Myeloma & Bone Cancer Research, West Hollywood, California
| | - James R Berenson
- Institute for Myeloma & Bone Cancer Research, West Hollywood, California.
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11
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Wei J, Zang S, Xu M, Zheng Q, Chen X, Qin Q. TRAF6 is a critical factor in fish immune response to virus infection. FISH & SHELLFISH IMMUNOLOGY 2017; 60:6-12. [PMID: 27818344 DOI: 10.1016/j.fsi.2016.11.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 10/19/2016] [Accepted: 11/02/2016] [Indexed: 06/06/2023]
Abstract
Tumor necrosis factor receptor-associated factor 6 (TRAF6) is one of the key adaptor molecule in Toll-like receptor signal transduction that triggers downstream cascades involved in innate immunity. In our previous study, the molecular characteristics of EtTRAF6 (TRAF6 from Epinephelus tauvina), the tissue distributions, expression patterns after challenging with bacterial and viral pathogens were investigated. Here we identified EtTRAF6 as an important regulator of virus-triggered signaling pathway. Overexpression of EtTRAF6-ORF and truncated forms of EtTRAF6, including EtTRAF6-C (delete the MATH domain), EtTRAF6-N (delete the RING domain) and EtTRAF6-MATH, inhibited IFN-β activity strongly in grouper spleen (GS) cells. Overexpression of EtTRAF6 repressed virus-induced production of type I IFNs. When EtTRAF6 cotransfected with EcIRF3 or EcIRF7, EtTRAF6 inhibited IRF-induced activation of IFN-β. Over-expressed EtTRAF6 inhibited the transcription of SGIV genes significantly in GS cells. Although TRAF6 has a role in apoptosis regulation, it is not known if EtTRAF6 has any role in apoptosis regulation. Strikingly, when over-expressed in fathead minnow (FHM) cells, EtTRAF6 protected them from cell death induced by SGIV. Therefore, these results suggest that TRAF6 may play a critical role in their response to SGIV infection, through regulation of a cell death pathway that is common to fish and humans.
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Affiliation(s)
- Jingguang Wei
- Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, PR China; Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, PR China
| | - Shaoqing Zang
- Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, PR China; Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, PR China
| | - Meng Xu
- State Key Laboratory Breeding Base for Sustainable Exploitation of Tropical Biotic Resources, College of Marine Science, Hainan University, Haikou, 570228, PR China
| | - Qiaojun Zheng
- College of Life Science, Shenzhen University, Shenzhen, 518060, PR China
| | - Xiuli Chen
- Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, PR China; Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, PR China
| | - Qiwei Qin
- Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, PR China; College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, PR China; Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, PR China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266000, PR China.
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Tumour necrosis factor receptor-associated factor-1 (TRAF-1) expression is increased in renal cell carcinoma patient serum but decreased in cancer tissue compared with normal: potential biomarker significance. Pathology 2016; 46:518-22. [PMID: 25158810 DOI: 10.1097/pat.0000000000000145] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Renal cell carcinoma (RCC) generally has a poor prognosis because of late diagnosis and metastasis. We have previously described decreased tumour necrosis factor receptor-associated factor-1 (TRAF-1) in RCC compared with paired normal kidney in a patient cohort in Australia. In the present study, TRAF-1 expression in clear cell RCC (ccRCC) and normal kidney was again compared, but in a cohort from University Malaya Medical Centre. Serum TRAF-1 was also evaluated in RCC and normal samples.Immunohistochemistry with automated batch staining and Aperio ImageScope morphometry was used to compare TRAF-1 in 61 ccRCC with paired normal kidney tissue. Serum from 15 newly diagnosed and untreated ccRCC and 15 healthy people was tested for TRAF-1 using ELISA.In this cohort, TRAF-1 was highly expressed in proximal tubular epithelium of normal kidney, and significantly decreased in ccRCC tissue (p < 0.001). Conversely, TRAF-1 in serum from ccRCC patients was significantly increased over control serum (132 ± 30 versus 54 ± 14 pg/mL, respectively; p = 0.013).Decreased TRAF-1 in RCC tissue, reported previously, was confirmed. This, along with significantly increased serum TRAF-1 may indicate the protein is actively secreted during development and progression of ccRCC. Therefore, the increased serum TRAF-1 may be a useful non-invasive indicator of RCC development.
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Yuan W, Sun Q, Jiang Y, Zhang X, Chen L, Xie C, Qin F, Chen Y, Lv H, Chen W, Xiao Y. MiR-146a affects the alteration in myeloid differentiation induced by hydroquinone in human CD34 + hematopoietic progenitor cells and HL-60 cells. Toxicol Res (Camb) 2016; 5:848-858. [PMID: 30090394 PMCID: PMC6061933 DOI: 10.1039/c5tx00419e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Accepted: 02/04/2016] [Indexed: 12/27/2022] Open
Abstract
The MiR-146a/TRAF6/NF-κB axis is important for the regulation of hematopoiesis and the immune system. To identify the key axis that regulates benzene-induced hematotoxicity or even leukemia, we investigated miR-146a expression in human CD34+ hematopoietic progenitor cells (HPCs) and human acute promyelocytic leukemia cells (HL-60) during the differentiation process. By performing a colony formation assay and flow cytometry on cells in the differentiation process after hydroquinone treatment, we found that hydroquinone induced a marked reduction of differentiation toward myeloid cells and immune cells in CD34+ cells (5 days exposure) as well as in HL-60 cells (3 h exposure). Further study using real-time PCR and western blot showed that the impaired myeloid differentiation was accompanied by the up-regulation of miR-146a and the down-regulation of TRAF6 and NF-κB. Using the miR-146a-5p inhibitor to suppress miR-146a expression could relieve the inhibitory effect on myeloid differentiation induced by hydroquinone to a certain extent. At the same time, the level of TRAF6 protein, as well as the phosphorylated IκBα protein which indicates NF-κB transcriptional activity was restored to the same levels as the control group. These results suggested that hydroquinone induced a dysregulation of miR-146a and its downstream NF-κB transcriptional factor pathway, which might be an early event in the generation of benzene-induced differentiation disturbance and subsequent leukemogenesis.
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Affiliation(s)
- Weixin Yuan
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment , School of Public Health , Sun Yat-sen University , Guangzhou , China . ; ; , +11 86 20 87330446 ; Tel: +11 86 20 87332851, +11 86 20 87330599
- Department of Occupational and Environmental Health , Faculty of Preventive Medicine , School of Public Health , Sun Yat-sen University , Guangzhou , China
| | - Qing Sun
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment , School of Public Health , Sun Yat-sen University , Guangzhou , China . ; ; , +11 86 20 87330446 ; Tel: +11 86 20 87332851, +11 86 20 87330599
- Department of Occupational and Environmental Health , Faculty of Preventive Medicine , School of Public Health , Sun Yat-sen University , Guangzhou , China
| | - Yanping Jiang
- Department of Obstetrics and Gynecology , Guangdong General Hospital , Guangzhou , China
| | - Xinjie Zhang
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment , School of Public Health , Sun Yat-sen University , Guangzhou , China . ; ; , +11 86 20 87330446 ; Tel: +11 86 20 87332851, +11 86 20 87330599
| | - Liping Chen
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment , School of Public Health , Sun Yat-sen University , Guangzhou , China . ; ; , +11 86 20 87330446 ; Tel: +11 86 20 87332851, +11 86 20 87330599
- Department of Occupational and Environmental Health , Faculty of Preventive Medicine , School of Public Health , Sun Yat-sen University , Guangzhou , China
| | - Chunjiao Xie
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment , School of Public Health , Sun Yat-sen University , Guangzhou , China . ; ; , +11 86 20 87330446 ; Tel: +11 86 20 87332851, +11 86 20 87330599
| | - Fei Qin
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment , School of Public Health , Sun Yat-sen University , Guangzhou , China . ; ; , +11 86 20 87330446 ; Tel: +11 86 20 87332851, +11 86 20 87330599
| | - Yuncong Chen
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment , School of Public Health , Sun Yat-sen University , Guangzhou , China . ; ; , +11 86 20 87330446 ; Tel: +11 86 20 87332851, +11 86 20 87330599
| | - Hongxin Lv
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment , School of Public Health , Sun Yat-sen University , Guangzhou , China . ; ; , +11 86 20 87330446 ; Tel: +11 86 20 87332851, +11 86 20 87330599
| | - Wen Chen
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment , School of Public Health , Sun Yat-sen University , Guangzhou , China . ; ; , +11 86 20 87330446 ; Tel: +11 86 20 87332851, +11 86 20 87330599
- Department of Occupational and Environmental Health , Faculty of Preventive Medicine , School of Public Health , Sun Yat-sen University , Guangzhou , China
| | - Yongmei Xiao
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment , School of Public Health , Sun Yat-sen University , Guangzhou , China . ; ; , +11 86 20 87330446 ; Tel: +11 86 20 87332851, +11 86 20 87330599
- Department of Occupational and Environmental Health , Faculty of Preventive Medicine , School of Public Health , Sun Yat-sen University , Guangzhou , China
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14
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TRAF6 is required for BLyS-mediated NF-κB signaling in multiple myeloma cells. Med Oncol 2015; 32:239. [DOI: 10.1007/s12032-015-0671-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Accepted: 07/22/2015] [Indexed: 01/13/2023]
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15
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Role of toll-like receptors in multiple myeloma and recent advances. Exp Hematol 2014; 43:158-67. [PMID: 25462020 DOI: 10.1016/j.exphem.2014.11.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2014] [Revised: 11/02/2014] [Accepted: 11/10/2014] [Indexed: 12/22/2022]
Abstract
Multiple myeloma (MM) is a hematologic malignancy characterized as an abnormal proliferation and invasion of plasma cells into the bone marrow. Toll-like receptors (ТLRs) connect the innate and adaptive immune responses and represent a significant and potentially linking element between inflammation and cancer. When TLRs bind to their ligands, they trigger two major signaling pathways such that both share overlapping downstream signals: one is a myeloid differentiation primary response 88 (MyD88)-dependent production and activation of nuclear factor-κB, whereas the other is a MyD88-independent production of type-I interferon. Whereas the MyD88 pathway results in proinflammatory cytokine production, the other pathway stimulates cell proliferation. Dysregulations of these pathways may eventually lead to abnormal cell proliferation and MM. Despite recent biomedical advances, MM continues to be an incurable disease. There are an increasing number of TLR-based therapeutic approaches currently being tested in a number of preclinical and clinical studies. We here attempt to outline in detail the currently available information on TLRs in various types of cancer.
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16
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MiR-125a TNF receptor-associated factor 6 to inhibit osteoclastogenesis. Exp Cell Res 2014; 321:142-52. [DOI: 10.1016/j.yexcr.2013.12.001] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Revised: 11/26/2013] [Accepted: 12/02/2013] [Indexed: 01/08/2023]
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17
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NF-κB and cancer. Mol Oncol 2013. [DOI: 10.1017/cbo9781139046947.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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18
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Viernes DR, Choi LB, Kerr WG, Chisholm JD. Discovery and development of small molecule SHIP phosphatase modulators. Med Res Rev 2013; 34:795-824. [PMID: 24302498 DOI: 10.1002/med.21305] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Inositol phospholipids play an important role in the transfer of signaling information across the cell membrane in eukaryotes. These signals are often governed by the phosphorylation patterns on the inositols, which are mediated by a number of inositol kinases and phosphatases. The src homology 2 (SH2) containing inositol 5-phosphatase (SHIP) plays a central role in these processes, influencing signals delivered through the PI3K/Akt/mTOR pathway. SHIP modulation by small molecules has been implicated as a treatment in a number of human disease states, including cancer, inflammatory diseases, diabetes, atherosclerosis, and Alzheimer's disease. In addition, alteration of SHIP phosphatase activity may provide a means to facilitate bone marrow transplantation and increase blood cell production. This review discusses the cellular signaling pathways and protein-protein interactions that provide the molecular basis for targeting the SHIP enzyme in these disease states. In addition, a comprehensive survey of small molecule modulators of SHIP1 and SHIP2 is provided, with a focus on the structure, potency, selectivity, and solubility properties of these compounds.
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Affiliation(s)
- Dennis R Viernes
- Department of Chemistry, Syracuse University, Syracuse, NY, USA 13244
| | - Lydia B Choi
- Department of Chemistry, Syracuse University, Syracuse, NY, USA 13244
| | - William G Kerr
- Department of Chemistry, Syracuse University, Syracuse, NY, USA 13244.,Department of Microbiology & Immunology, SUNY Upstate Medical University, Syracuse, NY, USA 13210.,Department of Pediatrics, SUNY Upstate Medical University, Syracuse, NY, USA 13210
| | - John D Chisholm
- Department of Chemistry, Syracuse University, Syracuse, NY, USA 13244
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19
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Zhang J, Ma W, Tian S, Fan Z, Ma X, Yang X, Zhao Q, Tan K, Chen H, Chen D, Huang BR. RanBPM interacts with TβRI, TRAF6 and curbs TGF induced nuclear accumulation of TβRI. Cell Signal 2013; 26:162-72. [PMID: 24103590 DOI: 10.1016/j.cellsig.2013.09.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2013] [Revised: 09/18/2013] [Accepted: 09/30/2013] [Indexed: 12/19/2022]
Abstract
Transforming growth factor β (TGF-β), a cytokine, and its receptors play a vital role during normal embryogenesis, cell proliferation, differentiation, apoptosis and migration. Ran-binding protein in the microtubule-organizing center (RanBPM) serves as a scaffold protein that has been shown to interact with many other proteins, such as MET, Axl/Sky, TRAF6, IFNR, TrKA and TrkB in addition to p75NTR. In the current study, we have identified RanBPM as a novel binding partner of TβRI by yeast two-hybrid assay. The TβRI and RanBPM association was confirmed by co-immunoprecipitation and GST pull-down experiments. Additionally, expression of RanBPM abrogated the interaction between TβRI and TRAF6. Furthermore, RanBPM could depress TGF-β induced TRAF6 ubiquitination, subsequent NF-κB signaling pathway, and block TGF-β induced TβRI nuclear accumulation. Taken together, our results reveal that RanBPM may modulate TGF-β-mediated downstream signaling and biological functions.
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Affiliation(s)
- Junwen Zhang
- National Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China
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20
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Liu H, Tamashiro S, Baritaki S, Penichet M, Yu Y, Chen H, Berenson J, Bonavida B. TRAF6 activation in multiple myeloma: a potential therapeutic target. CLINICAL LYMPHOMA MYELOMA & LEUKEMIA 2012; 12:155-63. [PMID: 22440007 DOI: 10.1016/j.clml.2012.01.006] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2011] [Revised: 01/18/2012] [Accepted: 01/20/2012] [Indexed: 01/03/2023]
Abstract
Multiple myeloma (MM) is an incurable B-lymphocyte malignancy. New therapeutic options have become available during the past several years; however nearly all patients acquire resistance to currently available therapeutic agents. Mechanisms contributing to the pathogenesis and chemoresistance of MM include genetic abnormalities, chromosomal translocations, gene mutations, the interaction between MM cells and the bone marrow microenvironment, and defects in the apoptotic signaling pathways. Survival signaling pathways associated with the pathogenesis of MM and bone marrow stromal cells play crucial roles in promoting growth, survival, adhesion, immortalization, angiogenesis, and drug resistance. The receptor activator of nuclear factor-kappa B/receptor activator of nuclear factor-kappa B ligand/tumor necrosis factor receptor-associated factor (RANK/RANKL-TRAF6) signal pathway mediates osteolytic bone lesions through the activation of the NF-κB and Janus kinase/signal transducer and activator of transcription (JNK) pathways in osteoclast precursor cells and thus contributes to the main clinical manifestations of bone disease. TRAF6 has also been identified as a ligase for Akt ubiquitination and membrane recruitment and its phosphorylation on growth factor stimulation. The inhibition of TRAF6 by silencing RNA or by decoy peptides decreases MM tumor cell proliferation and increases apoptosis as well as bone resorption. Some proteasome inhibitors and benzoxadiazole derivatives showed inhibitory effects on the activity and function of TRAF6. Overall, we propose that TRAF6 may be considered as a potential therapeutic target for the treatment of MM.
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Affiliation(s)
- Hong Liu
- Department of Microbiology, Immunology, and Molecular Genetics, Jonsson Comprehensive Cancer Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
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Abdi J, Engels F, Garssen J, Redegeld F. The role of Toll-like receptor mediated signalling in the pathogenesis of multiple myeloma. Crit Rev Oncol Hematol 2011; 80:225-40. [DOI: 10.1016/j.critrevonc.2010.12.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2010] [Revised: 10/05/2010] [Accepted: 12/08/2010] [Indexed: 12/12/2022] Open
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Wang L, Fu C, Cui Y, Xie Y, Yuan Y, Wang X, Chen H, Huang BR. The Ran-binding protein RanBPM can depress the NF-κB pathway by interacting with TRAF6. Mol Cell Biochem 2011; 359:83-94. [DOI: 10.1007/s11010-011-1002-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2011] [Accepted: 07/19/2011] [Indexed: 12/11/2022]
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23
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Ma T, Wang N, Su Z, Chen L, Zhu N, Ma C, Chen X, Chen H. Characterization of apoptosis and proliferation in esophageal carcinoma EC109 cells following siRNA-induced down-regulation of TRAF6. Mol Cell Biochem 2011; 352:77-85. [PMID: 21312055 DOI: 10.1007/s11010-011-0741-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2010] [Accepted: 01/28/2011] [Indexed: 01/04/2023]
Abstract
Tumor necrosis factor receptor-associated factor 6 (TRAF6) is an activator of the NF-κB transcription factor. NF-κB is involved in a variety of inflammatory, anti-apoptotic, and gene regulatory pathways and was recently found to be over-expressed in esophageal cancer cells. Here we investigated the function of TRAF6 in the esophageal cancer cell line EC109. siRNA targeting TRAF6 was introduced into EC109 cells and TRAF6 mRNA and protein levels were subsequently examined via RT-PCR and western blotting. Rates of apoptosis and cell proliferation were also measured using flow cytometry, ethynyl deoxyuridine (EdU), and CCK-8 (Cell Counting Kit-8) assays. The real-time PCR array was applied to profile the expression of TRAF6 related genes. TRAF6-siRNA reduced TRAF6 mRNA and protein expressions. NF-κB p65 protein expression was decreased in TRAF6-targeting siRNA-transfected cells compared to cells of the negative control. TRAF6-siRNA also significantly inhibited proliferation and enhanced apoptosis of EC109 cells. These studies suggested that TRAF6 was required for NF-κB activation in EC109 cells and it may be a good molecular target for suppressing the survival and proliferation of esophageal cancer cells.
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Affiliation(s)
- Tianzhong Ma
- Department of Histology and Embryology, Medical College of Shantou University, Shantou, Guangdong, People's Republic of China
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24
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Chiron D, Jego G, Pellat-Deuceunynck C. Toll-like receptors: Expression and involvement in Multiple Myeloma. Leuk Res 2010; 34:1545-50. [DOI: 10.1016/j.leukres.2010.06.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2010] [Revised: 05/31/2010] [Accepted: 06/01/2010] [Indexed: 12/31/2022]
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25
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Gutiérrez NC, Sarasquete ME, Misiewicz-Krzeminska I, Delgado M, De Las Rivas J, Ticona FV, Fermiñán E, Martín-Jiménez P, Chillón C, Risueño A, Hernández JM, García-Sanz R, González M, San Miguel JF. Deregulation of microRNA expression in the different genetic subtypes of multiple myeloma and correlation with gene expression profiling. Leukemia 2010; 24:629-37. [PMID: 20054351 DOI: 10.1038/leu.2009.274] [Citation(s) in RCA: 170] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Specific microRNA (miRNA) signatures have been associated with different cytogenetic subtypes in acute leukemias. This finding prompted us to investigate potential associations between genetic abnormalities in multiple myeloma (MM) and singular miRNA expression profiles. Moreover, global gene expression profiling was also analyzed to find correlated miRNA gene expression and select miRNA target genes that show such correlation. For this purpose, we analyzed the expression level of 365 miRNAs and the gene expression profiling in 60 newly diagnosed MM patients, selected to represent the most relevant recurrent genetic abnormalities. Supervised analysis showed significantly deregulated miRNAs in the different cytogenetic subtypes as compared with normal PC. It is interesting to note that miR-1 and miR-133a clustered on the same chromosomal loci, were specifically overexpressed in the cases with t(14;16). The analysis of the relationship between miRNA expression and their respective target genes showed a conserved inverse correlation between several miRNAs deregulated in MM cells and CCND2 expression level. These results illustrate, for the first time, that miRNA expression pattern in MM is associated with genetic abnormalities, and that the correlation of the expression profile of miRNA and their putative mRNA targets is useful to find statistically significant protein-coding genes in MM pathogenesis associated with changes in specific miRNAs.
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Affiliation(s)
- N C Gutiérrez
- Servicio de Hematología, Hospital Universitario, Centro de Investigación del Cáncer-IBMCC (USAL-CSIC), Salamanca, Spain
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Starczynowski DT, Kuchenbauer F, Argiropoulos B, Sung S, Morin R, Muranyi A, Hirst M, Hogge D, Marra M, Wells RA, Buckstein R, Lam W, Humphries RK, Karsan A. Identification of miR-145 and miR-146a as mediators of the 5q- syndrome phenotype. Nat Med 2010; 16:49-58. [PMID: 19898489 DOI: 10.1038/nm.2054] [Citation(s) in RCA: 491] [Impact Index Per Article: 35.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2009] [Accepted: 09/30/2009] [Indexed: 12/30/2022]
Abstract
5q- syndrome is a subtype of myelodysplastic syndrome characterized by severe anemia and variable neutropenia but normal or high platelet counts with dysplastic megakaryocytes. We examined expression of microRNAs (miRNAs) encoded on chromosome 5q as a possible cause of haploinsufficiency. We show that deletion of chromosome 5q correlates with loss of two miRNAs that are abundant in hematopoietic stem/progenitor cells (HSPCs), miR-145 and miR-146a, and we identify Toll-interleukin-1 receptor domain-containing adaptor protein (TIRAP) and tumor necrosis factor receptor-associated factor-6 (TRAF6) as respective targets of these miRNAs. TIRAP is known to lie upstream of TRAF6 in innate immune signaling. Knockdown of miR-145 and miR-146a together or enforced expression of TRAF6 in mouse HSPCs resulted in thrombocytosis, mild neutropenia and megakaryocytic dysplasia. A subset of mice transplanted with TRAF6-expressing marrow progressed either to marrow failure or acute myeloid leukemia. Thus, inappropriate activation of innate immune signals in HSPCs phenocopies several clinical features of 5q- syndrome.
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Bortezomib induces canonical nuclear factor-kappaB activation in multiple myeloma cells. Blood 2009; 114:1046-52. [PMID: 19436050 DOI: 10.1182/blood-2009-01-199604] [Citation(s) in RCA: 285] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Bortezomib is a proteasome inhibitor with remarkable preclinical and clinical antitumor activity in multiple myeloma (MM) patients. The initial rationale for its use in MM was inhibition of nuclear factor (NF)-kappaB activity by blocking proteasomal degradation of inhibitor of kappaBalpha (IkappaBalpha). Bortezomib inhibits inducible NF-kappaB activity; however, its impact on constitutive NF-kappaB activity in MM cells has not yet been defined. In this study, we demonstrate that bortezomib significantly down-regulated IkappaBalpha expression and triggered NF-kappaB activation in MM cell lines and primary tumor cells from MM patients. Importantly, no inhibition of p65 (RelA) nuclear translocation was recognized after bortezomib treatment in a murine xenograft model bearing human MM cells. Bortezomib-induced NF-kappaB activation was mediated via the canonical pathway. Moreover, other classes of proteasome inhibitors also induced IkappaBalpha down-regulation associated with NF-kappaB activation. Molecular mechanisms whereby bortezomib induced IkappaBalpha down-regulation were further examined. Bortezomib triggered phosphorylation of IkappaB kinase (IKKbeta) and its upstream receptor-interacting protein 2, whereas IKKbeta inhibitor MLN120B blocked bortezomib-induced IkappaBalpha down-regulation and NF-kappaB activation, indicating receptor-interacting protein 2/IKKbeta signaling plays crucial role in bortezomib-induced NF-kappaB activation. Moreover, IKKbeta inhibitors enhanced bortezomib-induced cytotoxicity. Our studies therefore suggest that bortezomib-induced cytotoxicity cannot be fully attributed to inhibition of canonical NF-kappaB activity in MM cells.
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Abstract
PURPOSE OF REVIEW This review aims to summarize recent advances in the mechanisms through which the activation of the transcription factor NF-kappaB contributes to the pathogenesis of multiple myeloma. RECENT FINDINGS This transcription factor regulates expression of numerous genes involved in multiple myeloma pathogenesis, including growth, survival, immortalization, angiogenesis and metastasis. Recently, mutations of NF-kappaB signaling molecules have been identified in multiple myeloma cells. In addition, interactions between multiple myeloma cells and the bone marrow environment play critical roles in NF-kappaB activation as well as in multiple myeloma pathogenesis. Moreover, several drugs that are effective against multiple myeloma, including bortezomib, thalidomide, lenalidomide and arsenic trioxide, have been found to block activation of NF-kappaB. The combination of conventional chemotherapeutic drugs and those that block NF-kappaB activation has now proven to be effective in the treatment of multiple myeloma. SUMMARY Recent studies further underscore the critical role of NF-kappaB in multiple myeloma pathogenesis and have provided the rationale for multiple myeloma therapy with NF-kappaB-specific inhibitors combined with conventional chemotherapeutic drugs.
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Naugler WE, Karin M. NF-kappaB and cancer-identifying targets and mechanisms. Curr Opin Genet Dev 2008; 18:19-26. [PMID: 18440219 DOI: 10.1016/j.gde.2008.01.020] [Citation(s) in RCA: 472] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2007] [Revised: 01/26/2008] [Accepted: 01/31/2008] [Indexed: 02/06/2023]
Abstract
A connection between inflammation and carcinogenesis has long been known, but the precise mechanisms are just beginning to be understood. NF-kappaB proteins, transcription factors which integrate stress signals and orchestrate immune responses, have also recently been linked to carcinogenesis. Hallmarks of cancer development include self-sufficiency in growth signals, insensitivity to growth-inhibitors, evasion of apoptosis, limitless replicative potential, tissue invasion and metastasis, and sustained angiogenesis. NF-kappaB signaling has been implicated in each of these hallmarks, and recent experimental studies have illuminated the mechanistic pathways by which NF-kappaB signaling contributes to these aspects of carcinogenesis. This review will focus on recent experimental data supporting the hypothesis that inflammation promotes carcinogenesis, and that NF-kappaB signaling is at the heart of such inflammation.
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Affiliation(s)
- Willscott E Naugler
- Department of Medicine, Division of Gastroenterology and Hepatology, Oregon Health and Sciences University, Portland, USA
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