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Hou G, Hu W, Sang Y, Gan X, Xu H, Hu Q, Cao X. Corynoxine triggers cell death via activating PP2A and regulating AKT-mTOR/GSK3β axes in NSCLC. Biochem Pharmacol 2024; 222:116110. [PMID: 38460908 DOI: 10.1016/j.bcp.2024.116110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 02/16/2024] [Accepted: 03/05/2024] [Indexed: 03/11/2024]
Abstract
This study investigates the anticancer activity and pharmacological mechanisms of Corynoxine (Cory) in non-small cell lung cancer (NSCLC). Cory, a natural product derived from the Chinese herbal medicine Uncaria rhynchophylla, demonstrates promising pharmacological activity. Cell proliferation and viability were evaluated via MTT and colony formation assays. Flow cytometry was employed to analyze cell apoptosis, cycle distribution, and mitochondrial membrane potential. Autophagy was detected using fluorescence microscopy and electron microscopy. Western blotting, protein overexpression, gene knockdown, co-immunoprecipitation, and bioinformatics characterized Cory's impact on signaling pathways. The research indicates that Cory inhibits the proliferation of NSCLC cells in vivo and in vitro. Cory enhances PP2A activity, inhibits the AKT/mTOR signaling pathway triggering autophagy, while suppressing the AKT/GSK3β signaling pathway to induce cellular apoptosis in NSCLC. Notably, the activation of PP2A plays a crucial role in Cory's antitumor effects by inhibiting AKT. In vivo experiments validated Cory's efficacy in NSCLC treatment. These findings highlight the promising role of Cory as a lead compound for drug development in NSCLC therapy, providing a viable option for addressing this challenging disease.
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Affiliation(s)
- Guoqing Hou
- School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China; School of Medicine, Taizhou University, Taizhou 318000, Zhejiang, China
| | - Weihua Hu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
| | - Yazhou Sang
- School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
| | - Xiaocai Gan
- School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
| | - Hui Xu
- School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
| | - Qiongying Hu
- School of Medicine, Taizhou University, Taizhou 318000, Zhejiang, China.
| | - Xuan Cao
- School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China; School of Medicine, Taizhou University, Taizhou 318000, Zhejiang, China.
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Zhou M, Zhang J, Zhao J, Liao M, Wang S, xu D, Zhao B, Yang C, Hou G, Tan J, Liu J, Zhang W, Yin L. Sex difference in cardiac performance in individuals with irregular shift work. Int J Cardiol Cardiovasc Risk Prev 2023; 19:200219. [PMID: 37841448 PMCID: PMC10569979 DOI: 10.1016/j.ijcrp.2023.200219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 09/10/2023] [Accepted: 10/02/2023] [Indexed: 10/17/2023]
Abstract
Background: sex differences existed in animal behavioral adaption and activity rhythms when exposed to chronic disruption of the circadian rhythm. Whether these differences extend to cardiac performance has not been fully investigated by cardiac imaging technology. Methods One hundred and thirty patients enrolled in this study. Patients were divided into the day shift (DS) group and the irregular shift (IRS) group based on whether involved in the night shift and the frequency of the night shift. Comparisons of clinical data and cardiac imaging parameters were performed to identify the sex difference in cardiac function in the participants with day shift work or irregular shifts. Results The absolute value of GLS was significantly lower in male IRS group than in male DS group. In females, no significant difference was tested in left ventricular function between the two groups. In male participants, Weekly work hours (WWH) was positively correlated with HR (r = 0.51, p = 0.02) and QTc duration (r = 0.68, p < 0.00), and weakly negatively correlated with the GLS (r = -0.38, p = 0.05). Amongst patients, there was a 2.67-fold higher relative risk (RR) for impaired GLS in males than in females, with a 95 % confidence interval (CI) of 1.20-5.61. Moreover, there was an increased risk in the male IRS group compared to the female IRS group to develop impaired GLS (RR:3.14, 95 % CI 1.20-7.84). Conclusions The present study suggests that chronic circadian disruption brings cardiac dysfunction in people with night-shift work. Gender differences exist in the impact of circadian rhythmicity on cardiac function and may help to guide the work schedule and breaks in shift workers and bring forward prevention strategies in response to chronic circadian disruption.
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Affiliation(s)
- Mi Zhou
- Department of Ultrasound in Medicine, Sichuan Provincial People's Hospital Wenjiang Hospital, Chengdu, China
| | - Junqing Zhang
- Department of Ultrasound in Medicine, Sichuan Provincial People's Hospital Wenjiang Hospital, Chengdu, China
| | - Jinyi Zhao
- Department of Ultrasound in Medicine, Sichuan Provincial People's Hospital Wenjiang Hospital, Chengdu, China
| | - Mingjiao Liao
- Department of Ultrasound in Medicine, Sichuan Provincial People's Hospital Wenjiang Hospital, Chengdu, China
| | - Siming Wang
- Department of Ultrasound in Medicine, Sichuan Provincial People's Hospital Wenjiang Hospital, Chengdu, China
| | - Da xu
- Department of Ultrasound in Medicine, Sichuan Provincial People's Hospital Wenjiang Hospital, Chengdu, China
| | - Bingyan Zhao
- Department of Ultrasound in Medicine, Sichuan Provincial People's Hospital Wenjiang Hospital, Chengdu, China
| | - Chuan Yang
- Department of Ultrasound in Medicine, Sichuan Provincial People's Hospital Wenjiang Hospital, Chengdu, China
| | - Guoqing Hou
- Department of Cardiology, Sichuan Provincial People's Hospital Wenjiang Hospital, China
| | - Jing Tan
- Department of Ultrasound in Medicine, Sichuan Provincial People's Hospital Wenjiang Hospital, Chengdu, China
| | - Jun Liu
- Department of Ultrasound in Medicine, Sichuan Provincial People's Hospital, China
| | - Wenjun Zhang
- Department of Ultrasound in Medicine, Sichuan Provincial People's Hospital Wenjiang Hospital, Chengdu, China
| | - Lixue Yin
- Cardiovascular Ultrasound and Non-Invasive Cardiology Department, Sichuan Provincial People's Hospital, Chengdu, China
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Lu S, Liu J, Hou G, Zhao J, Liu X, Xie T, Xiao K, Yonemochi S, Ebere EC, Wang W, Wang Q. Physicochemical Characterization and Oxidative Potential of Iron-Containing Particles Emitted from Xuanwei Coal Combustion. Toxics 2023; 11:921. [PMID: 37999573 PMCID: PMC10675500 DOI: 10.3390/toxics11110921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 11/10/2023] [Accepted: 11/10/2023] [Indexed: 11/25/2023]
Abstract
Respiratory diseases have been proven to be directly related to air pollutants. Xuanwei, located in South China, has been known to have the highest mortality rate for lung cancer in China because of the air pollutants emitted through local coal combustion. However, the mechanism of lung cancer induced by air pollutants is not clear. Based on the fact that a large number of iron-bearing mineral particles was found in Xuanwei coal combustion particles, the iron-containing particles were hypothesized to play important roles in the pathogenesis of the high incidence rate of lung cancer in this area. In this study, raw coal samples were collected from a coal mine in the Xuanwei area. Size-resolved particles emitted from the raw coal samples were collected using an Anderson high-volume sampler. Mineralogical characterization and an assessment of the oxidative potential of the iron-containing particles were conducted using cutting-edge technologies, and the biological activity of the particles were evaluated via DTT assay. Our data showed that the iron-containing minerals accounted for more than 10% of the measured particles emitted from Xuanwei coal combustion samples. The content analysis of ·OH generated from Xuanwei coal combustion particles showed that ·OH content was dependent on the size of particles in the surrogated lung fluid. The concentration of ·OH increased as the particle size decreased. The DTT assay data further demonstrated that when the mass concentration of dissolved irons increased, the oxidation potential of the particles increased. The highest proportion of divalent iron in the total dissolved iron was found in the submicron particles in low pH solution(pH = 1), which indicated that the oxidative potential induced by submicron particles was stronger than that induced by coarse particles and fine particles. Armed with the above data, the toxicological mechanism of the iron-containing mineral particles can be investigated further.
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Affiliation(s)
- Senlin Lu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China; (J.L.); (G.H.); (J.Z.); (T.X.)
| | - Jin Liu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China; (J.L.); (G.H.); (J.Z.); (T.X.)
| | - Guoqing Hou
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China; (J.L.); (G.H.); (J.Z.); (T.X.)
| | - Jiumei Zhao
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China; (J.L.); (G.H.); (J.Z.); (T.X.)
| | - Xinchun Liu
- Institute of Desert Meteorology, China Meteorological Administration, Urumqi 830002, China
| | - Tingting Xie
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China; (J.L.); (G.H.); (J.Z.); (T.X.)
| | - Kai Xiao
- College of Urban and Environmental Sciences, Beijing University, Beijing 100871, China;
| | | | - Enyoh Christian Ebere
- School of Science and Engineering, Saitama University, Saitama 338-8570, Japan; (E.C.E.); (W.W.); (Q.W.)
| | - Weiqian Wang
- School of Science and Engineering, Saitama University, Saitama 338-8570, Japan; (E.C.E.); (W.W.); (Q.W.)
| | - Qingyue Wang
- School of Science and Engineering, Saitama University, Saitama 338-8570, Japan; (E.C.E.); (W.W.); (Q.W.)
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Hou G, Sun Q, Gong SJ, Zhu P, Hao YG. [A case report of death from toxic encephalopathy caused by emamectin·chlorfenapyr]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2023; 41:629-631. [PMID: 37667163 DOI: 10.3760/cma.j.cn121094-20221011-00492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 09/06/2023]
Abstract
Emamectin·chlorfenapyr is insecticide compounded by emamectin benzoate and chlorfenapyr. There is no special antidote after poisoning, and the mortality rate of patients is very high. We admitted a case of toxic encephalopathy caused by oral administration of emamectin·chlorfenapyr. The clinical manifestations of patient were gastrointestinal symptoms, profuse sweating, high fever, changes in consciousness. After admitted to the hospital, despite active comprehensive treatment, the patient died of ineffective rescue eventually.
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Affiliation(s)
- G Hou
- Department of Emergency, Zaozhuang Municipal Hospital, Zaozhuang 277101, China
| | - Q Sun
- Department of Emergency, Zaozhuang Municipal Hospital, Zaozhuang 277101, China
| | - S J Gong
- Department of Emergency, Zaozhuang Municipal Hospital, Zaozhuang 277101, China
| | - P Zhu
- Department of Emergency, Zaozhuang Municipal Hospital, Zaozhuang 277101, China
| | - Y G Hao
- Department of Emergency, Zaozhuang Municipal Hospital, Zaozhuang 277101, China
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WANG X, Hou G, Liu Z. WCN23-0595 A MIN-TERM CLINICAL FOLLOW-UP STUDY ON CREATING ARTEIOVENOUS FISTULA BY A MODIFIED NO-TOUCH TECHNIQUE. Kidney Int Rep 2023. [DOI: 10.1016/j.ekir.2023.02.727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2023] Open
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6
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Tong R, Zhao L, Guo LJ, Zhou GW, Liang CY, Hou G, Dai HP, Chen WH. [Application of transbronchial cryobiopsy in the diagnosis of postoperative complications after lung transplantation: a report of 6 cases]. Zhonghua Jie He He Hu Xi Za Zhi 2023; 46:34-39. [PMID: 36617926 DOI: 10.3760/cma.j.cn112147-20220411-00301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Objective: To investigate the efficacy and safety of transbronchial cryobiopsy (TBCB) after lung transplantation. Methods: The clinical characteristics, TBCB procedure, diagnosis and treatment, and outcomes of lung transplant recipients of 6 patients (all male, aged 33-67 years) with TBCB in China-Japan Friendship Hospital from May to November 2021 were retrospectively analyzed. Results: Among the 6 patients diagnosed by TBCB, there were 2 cases of organizing pneumonia, 1 acute cellular rejection, 1 antibody-mediated rejection, and 1 bronchiolitis obliterans, and 1 diffuse alveolar damage. After the clinical diagnosis was confirmed, the condition improved after adjustment of the treatments followed. There were no serious complications related to the TBCB procedure. Conclusion: TBCB is valuable and relatively safe in the diagnosis of complications after lung transplantation, but the indications need to be strictly controlled.
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Affiliation(s)
- R Tong
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Center for Respiratory Medicine, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, National Clinical Research Center for Respiratory Diseases, WHO Collaborating Centre for Tobacco Cessation and Respiratory Diseases Prevention, Beijing 100029, China
| | - L Zhao
- Department of Lung Transplantation, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Center for Respiratory Medicine, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, National Clinical Research Center for Respiratory Diseases, WHO Collaborating Centre for Tobacco Cessation and Respiratory Diseases Prevention, Beijing 100029, China
| | - L J Guo
- Department of Lung Transplantation, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Center for Respiratory Medicine, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, National Clinical Research Center for Respiratory Diseases, WHO Collaborating Centre for Tobacco Cessation and Respiratory Diseases Prevention, Beijing 100029, China
| | - G W Zhou
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Center for Respiratory Medicine, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, National Clinical Research Center for Respiratory Diseases, WHO Collaborating Centre for Tobacco Cessation and Respiratory Diseases Prevention, Beijing 100029, China
| | - C Y Liang
- Department of Lung Transplantation, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Center for Respiratory Medicine, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, National Clinical Research Center for Respiratory Diseases, WHO Collaborating Centre for Tobacco Cessation and Respiratory Diseases Prevention, Beijing 100029, China
| | - G Hou
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Center for Respiratory Medicine, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, National Clinical Research Center for Respiratory Diseases, WHO Collaborating Centre for Tobacco Cessation and Respiratory Diseases Prevention, Beijing 100029, China
| | - H P Dai
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Center for Respiratory Medicine, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, National Clinical Research Center for Respiratory Diseases, WHO Collaborating Centre for Tobacco Cessation and Respiratory Diseases Prevention, Beijing 100029, China
| | - W H Chen
- Department of Lung Transplantation, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Center for Respiratory Medicine, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, National Clinical Research Center for Respiratory Diseases, WHO Collaborating Centre for Tobacco Cessation and Respiratory Diseases Prevention, Beijing 100029, China
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Wu A, Zhao X, Yang C, Wang J, Wang X, Liang W, Zhou L, Teng M, Niu L, Tang Z, Hou G, Wu F. A comparative study on aggregation and sedimentation of natural goethite and artificial Fe 3O 4 nanoparticles in synthetic and natural waters based on extended Derjaguin-Landau-Verwey-Overbeek (XDLVO) theory and molecular dynamics simulations. J Hazard Mater 2022; 435:128876. [PMID: 35468390 DOI: 10.1016/j.jhazmat.2022.128876] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 03/06/2022] [Accepted: 04/04/2022] [Indexed: 06/14/2023]
Abstract
Natural iron oxides nanomaterials have important roles in biogeochemical processes. In this study, the effects of pH, natural organic matter, and cations on aggregation and sedimentation of natural goethite and artificial Fe3O4 nanoparticles in water were investigated to learn more about the environmental behaviors of engineered and natural nanomaterials and how they differ. In addition, a novel extended DLVO theory that considered steric, gravitational, and magnetic attraction forces concurrently was specifically developed to provide mechanisms explanations. Specifically, Fe3O4 NPs were more likely than bulk goethite to aggregate (because of magnetic attraction interactions) at low HA concentrations and disperse at high HA concentrations. Besides, goethite was less prone to settle with the same concentration of NaCl than Fe3O4 NPs, but the opposite trend was found for the same concentration of CaCl2 because of the difference in maximum net energy (barrier) and strong Ca2+ bridging effectiveness of goethite in CaCl2 solution. Statistical models were established to evaluate colloidal stability of the particles. XPS and molecular dynamics simulation results suggested that ions were adsorbed onto particles via ionic polarization and that the binding free energies at high coverage followed the order Ca2+ > Na+ > Cl- and presence of cation bridging between particles.
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Affiliation(s)
- Aiming Wu
- College of Environment, Hohai University, Nanjing 210098, China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Xiaoli Zhao
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
| | - Chunyan Yang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; State Environment Protection Key Laboratory of Regional Eco-Process and Function Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Junyu Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Xia Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Weigang Liang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Lingfeng Zhou
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Miaomiao Teng
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Lin Niu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Zhi Tang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Guoqing Hou
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Fengchang Wu
- College of Environment, Hohai University, Nanjing 210098, China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
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Chen L, Hou G, Zhang K, Li Z, Yang S, Qiu Y, Yuan Q, Hou D, Ye X. Percutaneous CT-Guided Microwave Ablation Combined with Vertebral Augmentation for Treatment of Painful Spinal Metastases. AJNR Am J Neuroradiol 2022; 43:501-506. [PMID: 35115308 PMCID: PMC8910789 DOI: 10.3174/ajnr.a7415] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Accepted: 09/09/2021] [Indexed: 12/20/2022]
Abstract
BACKGROUND AND PURPOSE Percutaneous thermal ablation followed by vertebral augmentation is an emerging minimally invasive therapeutic alternative for the management of spinal metastases. This study aimed to retrospectively evaluate the effectiveness and safety of microwave ablation combined with vertebral augmentation for the treatment of painful vertebral metastases. MATERIALS AND METHODS Overall, 91 patients with 140 metastatic vertebrae who experienced refractory moderate-to-severe pain were treated with CT-guided microwave ablation and vertebral augmentation. Procedural effectiveness was determined using the visual analog scale, daily morphine consumption, and the Oswestry Disability Index preprocedurally and during follow-up. Local tumor control was assessed at follow-up imaging. RESULTS The procedure was technically successful in all patients. The median visual analog scale score and mean morphine dose were 6 (range, 4-10) and 77.8 (SD, 31.5) mg (range, 15-143 mg), preprocedurally; 5 (range 3-8) and 34.5 (SD, 23.8) mg (range, 0-88 mg) at 3 days; 4 (range, 2-7) and 28.7 (SD, 16.4) mg (range, 0-73 mg) at 1 week; 3 (range, 1-6) and 24.6 (SD, 13.2) mg (range, 0-70 mg) at 1 month; 3 (range, 1-6) and 21.70 (SD, 10.0) mg (range, 0-42 mg) at 3 months; and 3 (range, 1-8) and 21.0 (SD, 9.9) mg (range, 0-46 mg) at 6 months postprocedurally (all P < .05). A decrease in the Oswestry Disability Index score was also observed (P < .01). Local control was achieved in 94.8% of the treated metastatic vertebrae during the 6-month follow-up period. Asymptomatic cement leakage occurred in 42 (30%) treated vertebrae. A grade 3 neural injury was observed in 1 patient (1.1%). The patient's neurologic function returned to normal following treatment with mannitol, glucocorticoids, and radiation therapy. CONCLUSIONS This study demonstrates that percutaneous CT-guided microwave ablation combined with vertebral augmentation is a safe and effective minimally invasive intervention for the treatment of painful spinal metastases.
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Affiliation(s)
- L. Chen
- From the Departments of Oncology (L.C., K.Z., S.Y., Y.Q., Q.Y.)
| | | | - K. Zhang
- From the Departments of Oncology (L.C., K.Z., S.Y., Y.Q., Q.Y.)
| | - Z. Li
- Orthopedics (Z.L.), Tengzhou Central People’s Hospital Affiliated with Jining Medical University, Tengzhou, Shandong Province, China
| | - S. Yang
- From the Departments of Oncology (L.C., K.Z., S.Y., Y.Q., Q.Y.)
| | - Y. Qiu
- From the Departments of Oncology (L.C., K.Z., S.Y., Y.Q., Q.Y.)
| | - Q. Yuan
- From the Departments of Oncology (L.C., K.Z., S.Y., Y.Q., Q.Y.)
| | - D. Hou
- Department of Radiation Oncology (D.H.), Beijing Shijitan Hospital Affiliated with Capital Medical University, Haidian District, Beijing, China
| | - X. Ye
- Department of Minimally invasive Oncology (X.Y.), Shandong Provincial Qianfoshan Hospital, Jinan, Shandong Province, China
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Zhong ZM, Zhang J, Tang BG, Yu FF, Lu YS, Hou G, Chen JY, Du ZX. Transcriptome and metabolome analyses of the immune response to light stress in the hybrid grouper (Epinephelus lanceolatus ♂ × Epinephelus fuscoguttatus ♀). Animal 2022; 16:100448. [PMID: 35065313 DOI: 10.1016/j.animal.2021.100448] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 12/14/2021] [Accepted: 12/16/2021] [Indexed: 01/07/2023] Open
Abstract
Light intensity is an important environmental factor that affects fish growth and health through multiple physiological activities and metabolism and eventually impacts aquaculture harvest. There is a need to evaluate the fish stress response to light intensities, which will benefit aquaculture. Here, hybrid grouper (Epinephelus lanceolatus ♂ × Epinephelus fuscoguttatus ♀) was treated with three light intensities for evaluation of the light stress response, including high light intensity (1 250 lx), low light intensity (10 lx) and moderate light intensity (250 lx). Transcriptome analysis showed that a total of 71 318 unigene sequences were obtained with an N50 of 2 589 bp. Compared to the control group (250 lx), 1 697 differentially expressed genes (DEGs), a considerable quantity, were detected in the 1 250 lx group. Among those genes, 548 were upregulated, and the remaining 149 genes showed decreased expression. Comparatively small numbers of DEGs were detected in the 10 lx group; 54 out of 103 genes exhibited upregulated expression, and 49 genes showed downregulation. For further KEGG analysis, 82 DEGs were enriched in nine common signalling pathways in immunity, of which 73 DEGs were significantly inhibited in the 1 250 lx group. In contrast, only 11 DEGs were enriched in three immunity pathways, with nine DEGs showing a significant increase in the 10 lx group. The metabolome analysis revealed 59 and 44 differential metabolites (DMs) from the 1 250 lx and 10 lx groups, respectively. Of note, those DMs from the 1 250 lx-treated group were tendentiously involved in amino acid metabolism and lipid metabolism pathways, while the purine metabolism, amino acid metabolism and lipid metabolism pathways were mostly found in the 10 lx treatment group. In summary, our data indicated that high light intensity significantly inhibited the immune response in hybrid grouper, while low light intensity presented low stimulation of immune activity. In addition, both high and low light intensity could inhibit protein synthesis and amino acid metabolism. Taken together, hybrid grouper exhibited a much milder stress response to low light intensity than to high light intensity.
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Affiliation(s)
- Z M Zhong
- College of Fishery, Guangdong Ocean University, Zhanjiang, Guangdong 524088, China
| | - J Zhang
- College of Fishery, Guangdong Ocean University, Zhanjiang, Guangdong 524088, China; Southern Marine Science and Engineering Guangdong Laboratory, Zhanjiang, Guangdong 524006, China
| | - B G Tang
- College of Fishery, Guangdong Ocean University, Zhanjiang, Guangdong 524088, China; Southern Marine Science and Engineering Guangdong Laboratory, Zhanjiang, Guangdong 524006, China
| | - F F Yu
- College of Fishery, Guangdong Ocean University, Zhanjiang, Guangdong 524088, China; Southern Marine Science and Engineering Guangdong Laboratory, Zhanjiang, Guangdong 524006, China.
| | - Y S Lu
- College of Fishery, Guangdong Ocean University, Zhanjiang, Guangdong 524088, China; Shenzhen Institute of Guangdong Ocean University, Shenzhen, Guangdong 518120, China; Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, College of Fisheries, Guangdong Ocean University, Zhanjiang, Guangdong 524088, China
| | - G Hou
- College of Fishery, Guangdong Ocean University, Zhanjiang, Guangdong 524088, China
| | - J Y Chen
- College of Fishery, Guangdong Ocean University, Zhanjiang, Guangdong 524088, China
| | - Z X Du
- College of Fishery, Guangdong Ocean University, Zhanjiang, Guangdong 524088, China
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Zhang T, Li N, Gong G, Yang C, Hou G, Lin X. CCVO: Cascaded CNNs for Fast Monocular Visual Odometry towards the Dynamic Environment. IEEE Robot Autom Lett 2022. [DOI: 10.1109/lra.2022.3214790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Tiantian Zhang
- State Key Laboratory of Virtual Reality Technology and Systems, Beihang University, Beijing, China
| | - Ni Li
- State Key Laboratory of Virtual Reality Technology and Systems, Beihang University, Beijing, China
| | | | - Chaopin Yang
- Beijing Chuangqi Vision Technology Co., Ltd, Beijing, China
| | | | - Xin Lin
- Beihang University, Beijing, China
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11
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Zhang X, Xu H, Bi X, Hou G, Liu A, Zhao Y, Wang G, Cao X. Src acts as the target of matrine to inhibit the proliferation of cancer cells by regulating phosphorylation signaling pathways. Cell Death Dis 2021; 12:931. [PMID: 34642304 PMCID: PMC8511016 DOI: 10.1038/s41419-021-04221-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 09/15/2021] [Accepted: 09/28/2021] [Indexed: 12/12/2022]
Abstract
Studies have shown that matrine has antitumor activity against many types of cancers. However, the direct target in cancer cells of its anticancer effect has not been identified. The purpose of this study was to find the molecular target of matrine to inhibit the proliferation of cancer cells and explore its mechanism of action. Herein we showed that matrine inhibited the proliferation of cancer in vitro and in vivo. Pull-down assay with matrine-amino coupling resins and liquid chromatography-mass spectrometry/mass spectrometry (LC-MS/MS) identified Src as the target of matrine. Cellular thermal shift assay (CETSA) and drug affinity responsive target stability (DARTS) provided solid evidences that matrine directly bound to Src. Bioinformatics prediction and pull-down experiment demonstrated that Src kinase domain was required for its interaction with matrine and Ala392 in the kinase domain participated in matrine-Src interaction. Intriguingly, matrine was proven to inhibit Src kinase activity in a non-ATP-competitive manner by blocking the autophosphorylation of Tyr419 in Src kinase domain. Matrine down-regulated the phosphorylation levels of MAPK/ERK, JAK2/STAT3, and PI3K/Akt signaling pathways via targeting Src. Collectively, matrine targeted Src, inhibited its kinase activity, and down-regulated its downstream MAPK/ERK, JAK2/STAT3, and PI3K/Akt phosphorylation signaling pathways to inhibit the proliferation of cancer cells.
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Affiliation(s)
- Xi Zhang
- Department of Medical Genetics, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
- School of Pharmacy, Xinxiang Medical University, Xinxiang, 453003, Henan, China
| | - Hui Xu
- Department of Pathology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xiaoyang Bi
- Department of Medical Genetics, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Guoqing Hou
- Department of Medical Genetics, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Andong Liu
- Department of Medical Genetics, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Youyun Zhao
- Department of Clinical Laboratory, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, 430073, China
| | - Guoping Wang
- Department of Pathology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
| | - Xuan Cao
- Department of Medical Genetics, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
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12
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Xu L, Zhang X, Xin Y, Ma J, Yang C, Zhang X, Hou G, Dong XC, Sun Z, Xiong X, Cao X. Depdc5 deficiency exacerbates alcohol-induced hepatic steatosis via suppression of PPARα pathway. Cell Death Dis 2021; 12:710. [PMID: 34267188 PMCID: PMC8282792 DOI: 10.1038/s41419-021-03980-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 06/21/2021] [Accepted: 06/22/2021] [Indexed: 12/16/2022]
Abstract
Alcohol-related liver disease (ALD), a condition caused by alcohol overconsumption, occurs in three stages of liver injury including steatosis, hepatitis, and cirrhosis. DEP domain-containing protein 5 (DEPDC5), a component of GAP activities towards Rags 1 (GATOR1) complex, is a repressor of amino acid-sensing branch of the mammalian target of rapamycin complex 1 (mTORC1) pathway. In the current study, we found that aberrant activation of mTORC1 was likely attributed to the reduction of DEPDC5 in the livers of ethanol-fed mice or ALD patients. To further define the in vivo role of DEPDC5 in ALD development, we generated Depdc5 hepatocyte-specific knockout mouse model (Depdc5-LKO) in which mTORC1 pathway was constitutively activated through loss of the inhibitory effect of GATOR1. Hepatic Depdc5 ablation leads to mild hepatomegaly and liver injury and protects against diet-induced liver steatosis. In contrast, ethanol-fed Depdc5-LKO mice developed severe hepatic steatosis and inflammation. Pharmacological intervention with Torin 1 suppressed mTORC1 activity and remarkably ameliorated ethanol-induced hepatic steatosis and inflammation in both control and Depdc5-LKO mice. The pathological effect of sustained mTORC1 activity in ALD may be attributed to the suppression of peroxisome proliferator activated receptor α (PPARα), the master regulator of fatty acid oxidation in hepatocytes, because fenofibrate (PPARα agonist) treatment reverses ethanol-induced liver steatosis and inflammation in Depdc5-LKO mice. These findings provide novel insights into the in vivo role of hepatic DEPDC5 in the development of ALD.
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Affiliation(s)
- Lin Xu
- Department of Medical Genetics, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, PR China
- School of Forensic Medicine, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
| | - Xinge Zhang
- School of Forensic Medicine, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
- Xinxiang Key Laboratory of Metabolism and Integrative Physiology, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
| | - Yue Xin
- School of Forensic Medicine, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
- Xinxiang Key Laboratory of Metabolism and Integrative Physiology, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
| | - Jie Ma
- Department of Human Anatomy & Histoembryology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
| | - Chenyan Yang
- School of Forensic Medicine, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
- Xinxiang Key Laboratory of Metabolism and Integrative Physiology, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
| | - Xi Zhang
- Department of Medical Genetics, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, PR China
| | - Guoqing Hou
- Department of Medical Genetics, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, PR China
| | - Xiaocheng Charlie Dong
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Zhaoli Sun
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Xiwen Xiong
- School of Forensic Medicine, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China.
- Xinxiang Key Laboratory of Metabolism and Integrative Physiology, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China.
| | - Xuan Cao
- Department of Medical Genetics, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, PR China.
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13
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Grasberger H, Magis AT, Sheng E, Conomos MP, Zhang M, Garzotto LS, Hou G, Bishu S, Nagao-Kitamoto H, El-Zaatari M, Kitamoto S, Kamada N, Stidham RW, Akiba Y, Kaunitz J, Haberman Y, Kugathasan S, Denson LA, Omenn GS, Kao JY. DUOX2 variants associate with preclinical disturbances in microbiota-immune homeostasis and increased inflammatory bowel disease risk. J Clin Invest 2021; 131:141676. [PMID: 33651715 DOI: 10.1172/jci141676] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 02/25/2021] [Indexed: 12/18/2022] Open
Abstract
A primordial gut-epithelial innate defense response is the release of hydrogen peroxide by dual NADPH oxidase (DUOX). In inflammatory bowel disease (IBD), a condition characterized by an imbalanced gut microbiota-immune homeostasis, DUOX2 isoenzyme is the highest induced gene. Performing multiomic analyses using 2872 human participants of a wellness program, we detected a substantial burden of rare protein-altering DUOX2 gene variants of unknown physiologic significance. We identified a significant association between these rare loss-of-function variants and increased plasma levels of interleukin-17C, which is induced also in mucosal biopsies of patients with IBD. DUOX2-deficient mice replicated increased IL-17C induction in the intestine, with outlier high Il17c expression linked to the mucosal expansion of specific Proteobacteria pathobionts. Integrated microbiota/host gene expression analyses in patients with IBD corroborated IL-17C as a marker for epithelial activation by gram-negative bacteria. Finally, the impact of DUOX2 variants on IL-17C induction provided a rationale for variant stratification in case control studies that substantiated DUOX2 as an IBD risk gene. Thus, our study identifies an association of deleterious DUOX2 variants with a preclinical hallmark of disturbed microbiota-immune homeostasis that appears to precede the manifestation of IBD.
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Affiliation(s)
- Helmut Grasberger
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Michigan Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Andrew T Magis
- Institute for Systems Biology, Seattle, Washington, USA.,Arivale Inc., Seattle, Washington, USA
| | | | - Matthew P Conomos
- Arivale Inc., Seattle, Washington, USA.,Department of Biostatistics, University of Washington, Seattle, Washington, USA
| | - Min Zhang
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Michigan Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Lea S Garzotto
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Michigan Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Guoqing Hou
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Michigan Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Shrinivas Bishu
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Michigan Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Hiroko Nagao-Kitamoto
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Michigan Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Mohamad El-Zaatari
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Michigan Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Sho Kitamoto
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Michigan Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Nobuhiko Kamada
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Michigan Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Ryan W Stidham
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Michigan Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Yasutada Akiba
- West Los Angeles VA Medical Center and Departments of Medicine and Surgery, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Jonathan Kaunitz
- West Los Angeles VA Medical Center and Departments of Medicine and Surgery, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Yael Haberman
- Cincinnati Children's Hospital Medical Center, and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Subra Kugathasan
- Departments of Pediatrics and Human Genetics, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Lee A Denson
- Cincinnati Children's Hospital Medical Center, and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Gilbert S Omenn
- Departments of Computational Medicine & Bioinformatics, Internal Medicine, Human Genetics, and School of Public Health, University of Michigan, Ann Arbor, Michigan, USA
| | - John Y Kao
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Michigan Medicine, University of Michigan, Ann Arbor, Michigan, USA
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14
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Peltier D, Radosevich M, Ravikumar V, Pitchiaya S, Decoville T, Wood SC, Hou G, Zajac C, Oravecz-Wilson K, Sokol D, Henig I, Wu J, Kim S, Taylor A, Fujiwara H, Sun Y, Rao A, Chinnaiyan AM, Goldstein DR, Reddy P. RNA-seq of human T cells after hematopoietic stem cell transplantation identifies Linc00402 as a regulator of T cell alloimmunity. Sci Transl Med 2021; 13:13/585/eaaz0316. [PMID: 33731431 PMCID: PMC8589011 DOI: 10.1126/scitranslmed.aaz0316] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 08/11/2020] [Accepted: 01/27/2021] [Indexed: 01/26/2023]
Abstract
Mechanisms governing allogeneic T cell responses after solid organ and allogeneic hematopoietic stem cell transplantation (HSCT) are incompletely understood. To identify lncRNAs that regulate human donor T cells after clinical HSCT, we performed RNA sequencing on T cells from healthy individuals and donor T cells from three different groups of HSCT recipients that differed in their degree of major histocompatibility complex (MHC) mismatch. We found that lncRNA differential expression was greatest in T cells after MHC-mismatched HSCT relative to T cells after either MHC-matched or autologous HSCT. Differential expression was validated in an independent patient cohort and in mixed lymphocyte reactions using ex vivo healthy human T cells. We identified Linc00402, an uncharacterized lncRNA, among the lncRNAs differentially expressed between the mismatched unrelated and matched unrelated donor T cells. We found that Linc00402 was conserved and exhibited an 88-fold increase in human T cells relative to all other samples in the FANTOM5 database. Linc00402 was also increased in donor T cells from patients who underwent allogeneic cardiac transplantation and in murine T cells. Linc00402 was reduced in patients who subsequently developed acute graft-versus-host disease. Linc00402 enhanced the activity of ERK1 and ERK2, increased FOS nuclear accumulation, and augmented expression of interleukin-2 and Egr-1 after T cell receptor engagement. Functionally, Linc00402 augmented the T cell proliferative response to an allogeneic stimulus but not to a nominal ovalbumin peptide antigen or polyclonal anti-CD3/CD28 stimulus. Thus, our studies identified Linc00402 as a regulator of allogeneic T cell function.
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Affiliation(s)
- Daniel Peltier
- Division of Hematology and Oncology, Department of Pediatrics, University of Michigan, Ann Arbor, MI, USA, 48109
| | - Molly Radosevich
- Division of Hematology and Oncology, Department of Pediatrics, University of Michigan, Ann Arbor, MI, USA, 48109
| | - Visweswaran Ravikumar
- Department of Computational Medicine & Bioinformatics, Biostatistics, Radiation Oncology, and Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA, 48109
| | | | - Thomas Decoville
- Division of Hematology and Oncology, Department of Pediatrics, University of Michigan, Ann Arbor, MI, USA, 48109
| | - Sherri C. Wood
- Department of Internal Medicine, Ann Arbor, MI, USA, 48109
| | - Guoqing Hou
- Department of Internal Medicine, Division of Hematology and Oncology, University of Michigan Rogel Cancer Center, Ann Arbor, MI, USA, 48109
| | - Cynthia Zajac
- Department of Internal Medicine, Division of Hematology and Oncology, University of Michigan Rogel Cancer Center, Ann Arbor, MI, USA, 48109
| | - Katherine Oravecz-Wilson
- Department of Internal Medicine, Division of Hematology and Oncology, University of Michigan Rogel Cancer Center, Ann Arbor, MI, USA, 48109
| | - David Sokol
- Department of Internal Medicine, Division of Hematology and Oncology, University of Michigan Rogel Cancer Center, Ann Arbor, MI, USA, 48109
| | - Israel Henig
- Department of Internal Medicine, Division of Hematology and Oncology, University of Michigan Rogel Cancer Center, Ann Arbor, MI, USA, 48109
| | - Julia Wu
- Department of Internal Medicine, Division of Hematology and Oncology, University of Michigan Rogel Cancer Center, Ann Arbor, MI, USA, 48109
| | - Stephanie Kim
- Department of Internal Medicine, Division of Hematology and Oncology, University of Michigan Rogel Cancer Center, Ann Arbor, MI, USA, 48109
| | - Austin Taylor
- Department of Internal Medicine, Division of Hematology and Oncology, University of Michigan Rogel Cancer Center, Ann Arbor, MI, USA, 48109
| | - Hideaki Fujiwara
- Department of Internal Medicine, Division of Hematology and Oncology, University of Michigan Rogel Cancer Center, Ann Arbor, MI, USA, 48109
| | - Yaping Sun
- Department of Internal Medicine, Division of Hematology and Oncology, University of Michigan Rogel Cancer Center, Ann Arbor, MI, USA, 48109
| | - Arvind Rao
- Department of Computational Medicine & Bioinformatics, Biostatistics, Radiation Oncology, and Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA, 48109
| | - Arul M. Chinnaiyan
- Michigan Center for Translational Pathology, Department of Pathology, Howard Hughes Medical Institute, University of Michigan, Ann Arbor, Michigan, USA, 48109
| | - Daniel R. Goldstein
- Department of Internal Medicine, Institute of Gerontology, Department of Microbiology and Immunology, Program of Michigan Biology of Cardiovascular Aging, Ann Arbor, MI, USA, 48109
| | - Pavan Reddy
- Department of Internal Medicine, Division of Hematology and Oncology, University of Michigan Rogel Cancer Center, Ann Arbor, MI, USA, 48109.,Corresponding Author: Pavan Reddy,
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15
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Owyang SY, Zhang M, El-Zaatari M, Eaton KA, Bishu S, Hou G, Grasberger H, Kao JY. Dendritic cell-derived TGF-β mediates the induction of mucosal regulatory T-cell response to Helicobacter infection essential for maintenance of immune tolerance in mice. Helicobacter 2020; 25:e12763. [PMID: 33025641 PMCID: PMC7885176 DOI: 10.1111/hel.12763] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 09/04/2020] [Accepted: 09/15/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND Helicobacter pylori infection leads to regulatory T-cell (Treg) induction in infected mice, which contributes to H. pylori immune escape. However, the mechanisms responsible for H. pylori induction of Treg and immune tolerance remain unclear. We hypothesized DC-produced TGF-β may be responsible for Treg induction and immune tolerance. MATERIALS AND METHODS To test this hypothesis, we generated TGF-β∆DC mice (CD11c+ DC-specific TGF-β deletion) and assessed the impact of DC-specific TGF-β deletion on DC function during Helicobacter infection in vitro and in vivo. To examine the T cell-independent DC function, we crossed TGF-β∆DC mice onto Rag1KO background to generate TGF-β∆DC xRag1KO mice. RESULTS When stimulated with H. pylori, TGF-β∆DC BMDC/splenocyte cocultures showed increased levels of proinflammatory cytokines and decreased levels of anti-inflammatory cytokines compared to control, indicating a proinflammatory DC phenotype. Following 6 months of H. felis infection, TGF-β∆DC mice developed more severe gastritis and a trend toward more metaplasia compared to TGF-βfl/fl with increased levels of inflammatory Th1 cytokine mRNA and lower gastric H. felis colonization compared to infected TGF-βfl/fl mice. In a T cell-deficient background using TGF-β∆DC xRag1KO mice, H. felis colonization was significantly lower when DC-derived TGF-β was absent, revealing a direct, innate function of DC in controlling H. felis infection independent of Treg induction. CONCLUSIONS Our findings indicate that DC-derived TGF-β mediates Helicobacter-induced Treg response and attenuates the inflammatory Th1 response. We also demonstrated a previously unrecognized innate role of DC controlling Helicobacter colonization via a Treg-independent mechanism. DC TGF-β signaling may represent an important target in the management of H. pylori.
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Affiliation(s)
- Stephanie Y. Owyang
- Department of Internal Medicine (Division of Gastroenterology), University of Michigan Health System, Ann Arbor, Michigan, 48109 USA
| | - Min Zhang
- Department of Internal Medicine (Division of Gastroenterology), University of Michigan Health System, Ann Arbor, Michigan, 48109 USA
| | - Mohamad El-Zaatari
- Department of Internal Medicine (Division of Gastroenterology), University of Michigan Health System, Ann Arbor, Michigan, 48109 USA
| | - Kathryn A. Eaton
- Unit for Laboratory Animal Medicine and Department of Microbiology and Immunology, University of Michigan, Ann Arbor, Michigan, 48109 USA
| | - Shrinivas Bishu
- Department of Internal Medicine (Division of Gastroenterology), University of Michigan Health System, Ann Arbor, Michigan, 48109 USA
| | - Guoqing Hou
- Department of Internal Medicine (Division of Gastroenterology), University of Michigan Health System, Ann Arbor, Michigan, 48109 USA
| | - Helmut Grasberger
- Department of Internal Medicine (Division of Gastroenterology), University of Michigan Health System, Ann Arbor, Michigan, 48109 USA
| | - John Y. Kao
- Department of Internal Medicine (Division of Gastroenterology), University of Michigan Health System, Ann Arbor, Michigan, 48109 USA
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16
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Deng J, Wen C, Ding X, Zhang X, Hou G, Liu A, Xu H, Cao X, Bai Y. LKB1-MARK2 signalling mediates lipopolysaccharide-induced production of cytokines in mouse macrophages. J Cell Mol Med 2020; 24:11307-11317. [PMID: 32841502 PMCID: PMC7576310 DOI: 10.1111/jcmm.15710] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 06/17/2020] [Accepted: 07/10/2020] [Indexed: 01/25/2023] Open
Abstract
Lipopolysaccharide (LPS) is an endotoxin involved in a number of acute and chronic inflammatory syndromes. Although LPS-induced signalling has been extensively studied, there are still mysteries remaining to be revealed. In the current study, we used high-throughput phosphoproteomics to profile LPS-initiated signalling and aimed to find novel mediators. A total of 448 phosphoproteins with 765 phosphorylation sites were identified, and we further validated that the phosphorylation of MARK2 on T208 was important for the regulation on LPS-induced CXCL15 (human IL-8 homolog), IL-1β, IL-6 and TNF-α release, in which LKB1 had a significant contribution. In summary, induction of cytokines by LPS in mouse macrophage is regulated by LKB1-MARK2 signals. Our study provides new clues for further exploring the underlying mechanisms of LPS-induced diseases, and new therapeutic approaches concerning bacterial infection may be derived from these findings.
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Affiliation(s)
- Jie Deng
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, China
| | - Chunmei Wen
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, China
| | - Xiangyu Ding
- School of Ophthalmology and Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, China
| | - Xi Zhang
- Department of Medical Genetics, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Guoqing Hou
- Department of Medical Genetics, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Andong Liu
- Department of Medical Genetics, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hui Xu
- Ultrastructural Pathology Laboratory, Department of Pathology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xuan Cao
- Department of Medical Genetics, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yongheng Bai
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, China.,Institute of Chronic Kidney Disease, Wenzhou Medical University, Wenzhou, China
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17
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Abstract
Studies in humans strongly implicate Th17 cells in the pathogenesis of inflammatory bowel disease. Thus, Th17 cells are major targets of approved and emerging biologics. Herein, we review the role of Th17 in IBD with a clinical focus.
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Affiliation(s)
- Guoqing Hou
- Division of Gastroenterology, Department of Medicine, University of Michigan, MI, USA
| | - Shrinivas Bishu
- Crohn's and Colitis Center, Division of Gastroenterology, Department of Medicine, University of Michigan, MI, USA
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18
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El-Zaatari M, Bishu S, Zhang M, Grasberger H, Hou G, Haley H, Humphries B, Syu LJ, Dlugosz AA, Luker K, Luker GD, Eaton K, Kamada N, Cascalho M, Kao JY. Aim2-mediated/IFN-β-independent regulation of gastric metaplastic lesions via CD8+ T cells. JCI Insight 2020; 5:94035. [PMID: 32053518 DOI: 10.1172/jci.insight.94035] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 02/12/2020] [Indexed: 01/24/2023] Open
Abstract
Development of gastric cancer is often preceded by chronic inflammation, but the immune cellular mechanisms underlying this process are unclear. Here we demonstrated that an inflammasome molecule, absent in melanoma 2 (Aim2), was upregulated in patients with gastric cancer and in spasmolytic polypeptide-expressing metaplasia of chronically Helicobacter felis-infected stomachs in mice. However, we found that Aim2 was not necessary for inflammasome function during gastritis. In contrast, Aim2 deficiency led to an increase in gastric CD8+ T cell frequency, which exacerbated metaplasia. These gastric CD8+ T cells from Aim2-/- mice were found to have lost their homing receptor expression (sphingosine-1-phosphate receptor 1 [S1PR1] and CD62L), a feature of tissue-resident memory T cells. The process was not mediated by Aim2-dependent regulation of IFN-β or by dendritic cell-intrinsic Aim2. Rather, Aim2 deficiency contributed to an increased production of CXCL16 by B cells, which could suppress S1PR1 and CD62L in CD8+ T cells. This study describes a potentially novel function of Aim2 that regulates CD8+ T cell infiltration and retention within chronically inflamed solid organ tissue. This function operates independent of the inflammasome, IFN-β, or dendritic cells. We provide evidence that B cells can contribute to this mechanism via CXCL16.
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Affiliation(s)
- Mohamad El-Zaatari
- Division of Gastroenterology and Hepatology, Department of Internal Medicine
| | - Shrinivas Bishu
- Division of Gastroenterology and Hepatology, Department of Internal Medicine
| | - Min Zhang
- Division of Gastroenterology and Hepatology, Department of Internal Medicine
| | - Helmut Grasberger
- Division of Gastroenterology and Hepatology, Department of Internal Medicine
| | - Guoqing Hou
- Division of Gastroenterology and Hepatology, Department of Internal Medicine
| | - Henry Haley
- Department of Radiology, Microbiology and Immunology, and Biomedical Engineering
| | - Brock Humphries
- Department of Radiology, Microbiology and Immunology, and Biomedical Engineering
| | - Li-Jyun Syu
- Department of Dermatology, School of Medicine
| | | | - Kathy Luker
- Department of Radiology, Microbiology and Immunology, and Biomedical Engineering
| | - Gary D Luker
- Department of Radiology, Microbiology and Immunology, and Biomedical Engineering
| | | | - Nobuhiko Kamada
- Division of Gastroenterology and Hepatology, Department of Internal Medicine
| | - Marilia Cascalho
- Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA
| | - John Y Kao
- Division of Gastroenterology and Hepatology, Department of Internal Medicine
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19
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Zhang H, Guo F, Tang M, Dai H, Sheng J, Chen L, Liu S, Wang J, Shi Y, Ye C, Hou G, Wu X, Jin X, Chen K. Association between Skeletal Muscle Strength and Dysphagia among Chinese Community-Dwelling Elderly Adults. J Nutr Health Aging 2020; 24:642-649. [PMID: 32510118 DOI: 10.1007/s12603-020-1379-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
OBJECTIVES Swallowing disorder is a health burden for the elderly in China. This study aimed to investigate the prevalence of dysphagia and to test the association between skeletal muscle strength and swallowing problems among community-dwelling older adults. DESIGN A cross-sectional study. SETTING Community-dwelling Chinese elderly in China. PARTICIPANTS 3361 adults aged 65 years or above were involved, among which 1740 (51.8%) were female, with average age of 72.64 (Standard deviation, SD=6.10) years old. MEASUREMENTS Handgrip strength (HGS) was used to evaluate skeletal muscle strength. Dysphagia assessment was performed using the Eating Assessment Tool-10 (EAT-10) and the 30mL water swallow test (WST). Binary logistic regression was used to evaluate the relationship between skeletal muscle strength and dysphagia, and covariates as age, gender, material status, etc. were adjusted. RESULTS The prevalence of dysphagia were 5.5% and 12.9%, screened by EAT-10 and 30mL WST respectively. Participants with dysphagia showed lower HGS (21.73 ± 9.20 vs. 25.66 ± 11.32, p<0.001, by EAT-10; 20.26 ± 9.88 vs. 26.22 ± 11.28, p<0.001, by WST). The adjusted model suggested that muscle strength is a protective factor for swallowing disorders (adjusted OR=0.974, 95%CI: 0.950-0.999, by EAT-10; adjusted OR=0.952, 95%CI: 0.933-0.972, by WST). Subgroup analyses of WST found the effects were significant among participants aged in 70-74 years group and ≥75 years group, rather than those aged under 70. CONCLUSION Dysphagia was significantly associated with skeletal muscle strength among the community-dwelling elderly population. Effective interventions should be taken to manage the decline of muscle strength for the older adults, especially early prevention before 70 years old.
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Affiliation(s)
- H Zhang
- Huafang Zhang, Department of Nursing, the Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu, Zhejiang, 322000, China. Tel: +86-15924187619. ; Kun Chen, Department of Epidemiology and Biostatistics, Zhejiang University School of Medicine, Hangzhou, 310058, China. Tel: +86-571-88208190
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Bishu S, Hou G, El Zaatari M, Bishu SR, Popke D, Zhang M, Grasberger H, Zou W, Stidham RW, Higgins PDR, Spence JR, Kamada N, Kao JY. Citrobacter rodentium Induces Tissue-Resident Memory CD4 + T Cells. Infect Immun 2019; 87:e00295-19. [PMID: 31061145 PMCID: PMC6589064 DOI: 10.1128/iai.00295-19] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 04/18/2019] [Indexed: 12/21/2022] Open
Abstract
Tissue-resident memory T cells (TRM cells) are a novel population of tissue-restricted antigen-specific T cells. TRM cells are induced by pathogens and promote host defense against secondary infections. Although TRM cells cannot be detected in circulation, they are the major memory CD4+ and CD8+ T-cell population in tissues in mice and humans. Murine models of CD8+ TRM cells have shown that CD8+ TRM cells maintain tissue residency via CD69 and though tumor growth factor β-dependent induction of CD103. In contrast to CD8+ TRM cells, there are few models of CD4+ TRM cells. Thus, much less is known about the factors regulating the induction, maintenance, and host defense functions of CD4+ TRM cells. Citrobacter rodentium is known to induce IL-17+ and IL-22+ CD4+ T cells (Th17 and Th22 cells, respectively). Moreover, data from IL-22 reporter mice show that most IL-22+ cells in the colon 3 months after C. rodentium infection are CD4+ T cells. This collectively suggests that C. rodentium may induce CD4+ TRM cells. Here, we demonstrate that C. rodentium induces a population of IL-17A+ CD4+ T cells that are tissue restricted and antigen specific, thus meeting the criteria of CD4+ TRM cells. These cells expand and are a major source of IL-22 during secondary C. rodentium infection, even before the T-cell phase of the host response in primary infection. Finally, using FTY 720, which depletes circulating naive and effector T cells but not tissue-restricted T cells, we show that these CD4+ TRM cells can promote host defense.
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Affiliation(s)
- S Bishu
- Division of Gastroenterology, Department of Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - G Hou
- Division of Gastroenterology, Department of Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - M El Zaatari
- Division of Gastroenterology, Department of Medicine, University of Michigan, Ann Arbor, Michigan, USA
- University of Michigan Crohn's and Colitis Program, Ann Arbor, Michigan, USA
| | - S R Bishu
- Consolidated Pathology Consultants, Northwestern Lake Forest Hospital, Lake Forest, Illinois, USA
| | - D Popke
- Division of Gastroenterology, Department of Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - M Zhang
- Division of Gastroenterology, Department of Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - H Grasberger
- Division of Gastroenterology, Department of Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - W Zou
- Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA
| | - R W Stidham
- Division of Gastroenterology, Department of Medicine, University of Michigan, Ann Arbor, Michigan, USA
- University of Michigan Crohn's and Colitis Program, Ann Arbor, Michigan, USA
| | - P D R Higgins
- Division of Gastroenterology, Department of Medicine, University of Michigan, Ann Arbor, Michigan, USA
- University of Michigan Crohn's and Colitis Program, Ann Arbor, Michigan, USA
| | - J R Spence
- Division of Gastroenterology, Department of Medicine, University of Michigan, Ann Arbor, Michigan, USA
- Department of Cell and Developmental Biology, University of Michigan, Ann Arbor, Michigan, USA
| | - N Kamada
- Division of Gastroenterology, Department of Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - J Y Kao
- Division of Gastroenterology, Department of Medicine, University of Michigan, Ann Arbor, Michigan, USA
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21
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Bishu S, El Zaatari M, Hayashi A, Hou G, Bowers N, Kinnucan J, Manoogian B, Muza-Moons M, Zhang M, Grasberger H, Bourque C, Zou W, Higgins PDR, Spence JR, Stidham RW, Kamada N, Kao JY. CD4+ Tissue-resident Memory T Cells Expand and Are a Major Source of Mucosal Tumour Necrosis Factor α in Active Crohn's Disease. J Crohns Colitis 2019; 13:905-915. [PMID: 30715262 PMCID: PMC6939878 DOI: 10.1093/ecco-jcc/jjz010] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND AIMS Tumour necrosis factor [TNF]α- and IL-17A-producing T cells are implicated in Crohn's disease [CD]. Tissue-resident memory T [TRM] cells are tissue-restricted T cells that are regulated by PR zinc finger domain 1 [PRDM1], which has been implicated in pathogenic Th17 cell responses. TRM cells provide host defence but their role in CD is unknown. We thus examined CD4+ TRM cells in CD. METHODS Colon samples were prospectively collected at endoscopy or surgery in CD and control subjects. Flow cytometry and ex vivo assays were performed to characterise CD4+ TRM cells. RESULTS CD4+ TRM cells are the most abundant memory T cell population and are the major T cell source of mucosal TNFα in CD. CD4+ TRM cells are expanded in CD and more avidly produce IL-17A and TNFα relative to control cells. There was a unique population of TNFα+IL-17A+ CD4+ TRM cells in CD which are largely absent in controls. PRDM1 was highly expressed by CD4+ TRM cells but not by other effector T cells. Suppression of PRDM1 was associated with impaired induction of IL17A and TNFA by CD4+ TRM cells. CONCLUSIONS CD4+ TRM cells are expanded in CD and are a major source of TNFα, suggesting that they are important in CD. PRDM1 is expressed by TRM cells and may regulate their function. Collectively, this argues for prospective studies tracking CD4+ TRM cells over the disease course.
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Affiliation(s)
- Shrinivas Bishu
- Division of Gastroenterology, Department of Medicine, University of Michigan, AnnArbor, MI, USA,Corresponding author: Shrinivas Bishu, MD, University of Michigan, 1500 East Medical Center Drive, Ann Arbor, MI, USA, 48104. Tel.: [734] 232–5395;
| | - Mohammed El Zaatari
- Division of Gastroenterology, Department of Medicine, University of Michigan, AnnArbor, MI, USA,University of Michigan Crohn’s and Colitis Program, University of Michigan, AnnArbor, MI, USA
| | - Atsushi Hayashi
- Division of Gastroenterology, Department of Medicine, University of Michigan, AnnArbor, MI, USA,Tokyo R&D Center, Miyarisan Pharmaceutical, Tokyo, Japan
| | - Guoqing Hou
- Division of Gastroenterology, Department of Medicine, University of Michigan, AnnArbor, MI, USA
| | - Nicole Bowers
- Division of Gastroenterology, Department of Medicine, University of Michigan, AnnArbor, MI, USA
| | - Jami Kinnucan
- Division of Gastroenterology, Department of Medicine, University of Michigan, AnnArbor, MI, USA,University of Michigan Crohn’s and Colitis Program, University of Michigan, AnnArbor, MI, USA
| | - Beth Manoogian
- Division of Gastroenterology, Department of Medicine, University of Michigan, AnnArbor, MI, USA,University of Michigan Crohn’s and Colitis Program, University of Michigan, AnnArbor, MI, USA
| | - Michelle Muza-Moons
- Division of Gastroenterology, Department of Medicine, University of Michigan, AnnArbor, MI, USA,University of Michigan Crohn’s and Colitis Program, University of Michigan, AnnArbor, MI, USA
| | - Min Zhang
- Division of Gastroenterology, Department of Medicine, University of Michigan, AnnArbor, MI, USA
| | - Helmut Grasberger
- Division of Gastroenterology, Department of Medicine, University of Michigan, AnnArbor, MI, USA
| | - Charlie Bourque
- Division of Gastroenterology, Department of Medicine, University of Michigan, AnnArbor, MI, USA
| | - Weiping Zou
- Department of Surgery, University of Michigan, AnnArbor, MI, USA
| | - Peter D R Higgins
- Division of Gastroenterology, Department of Medicine, University of Michigan, AnnArbor, MI, USA,University of Michigan Crohn’s and Colitis Program, University of Michigan, AnnArbor, MI, USA
| | - Jason R Spence
- Division of Gastroenterology, Department of Medicine, University of Michigan, AnnArbor, MI, USA,Department of Cell and Developmental Biology, University of Michigan, AnnArbor, MI, US
| | - Ryan W Stidham
- Division of Gastroenterology, Department of Medicine, University of Michigan, AnnArbor, MI, USA,University of Michigan Crohn’s and Colitis Program, University of Michigan, AnnArbor, MI, USA
| | - Nobuhiko Kamada
- Division of Gastroenterology, Department of Medicine, University of Michigan, AnnArbor, MI, USA
| | - John Y Kao
- Division of Gastroenterology, Department of Medicine, University of Michigan, AnnArbor, MI, USA
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Li W, Li N, Dai S, Hou G, Guo K, Chen X, Yi C, Liu W, Deng F, Wu Y, Cao X. Zika virus circumvents host innate immunity by targeting the adaptor proteins MAVS and MITA. FASEB J 2019; 33:9929-9944. [PMID: 31180720 DOI: 10.1096/fj.201900260r] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Recently, Zika virus (ZIKV) has generated extraordinary concern because of its severe neurotoxicity. Disturbingly, there is no vaccine or specific drug to prevent or treat the diseases caused by ZIKV infection. Thus, it is extremely urgent to characterize the pathogenesis of ZIKV. It has been documented that ZIKV can evade antiviral responses of host cells. Here, we demonstrate that ZIKV strain SZ-WIV01 down-regulates the production of type I IFN and IFN-stimulated genes along with the expression of mitochondrial antiviral signaling protein (MAVS) and mediator of IFN regulatory factor 3 activation (MITA). In the mechanism, ZIKV nonstructural (NS) 3 and NS2B3 negatively regulate IFN-related retinoic acid-inducible gene I-like receptor signaling pathway by targeting MAVS and MITA, respectively. Overexpression of ZIKV NS3 and NS2B3 dramatically inhibits expression of IFN-β. ZIKV NS3 interacts with MAVS, and NS2B3 interacts with MITA, which catalyzes K48-linked polyubiquitination of MAVS and MITA for degradation. Further investigations suggest that ZIKV NS2B3 impairs polyinosinic:polycytidylic acid-triggered K63-linked polyubiquitination of MITA, thereby subverting the activation of downstream sensors. Our study reveals an undiscovered mechanism for ZIKV to escape the innate immune response, providing new insights into clinical study of vaccines or effective drugs.-Li, W., Li, N., Dai, S., Hou, G., Guo, K., Chen, X., Yi, C., Liu, W., Deng, F., Wu, Y., Cao, X. Zika virus circumvents host innate immunity by targeting the adaptor proteins MAVS and MITA.
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Affiliation(s)
- Wenjiao Li
- School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ning Li
- The Institute of Cancer Molecular Mechanisms and Drug Targets, School of Basic Medicine, Henan University of Traditional Chinese Medicine, Zhengzhou, China
| | - Shiyu Dai
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
| | - Guoqing Hou
- School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kanglin Guo
- School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xuanzuo Chen
- School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Changhua Yi
- State Key Laboratory of Respiratory Diseases, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Weiyong Liu
- Department of Clinical Laboratory, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Fei Deng
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
| | - Yaosong Wu
- The Institute of Cancer Molecular Mechanisms and Drug Targets, School of Basic Medicine, Henan University of Traditional Chinese Medicine, Zhengzhou, China
| | - Xuan Cao
- School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Qiao X, Hou G, Yin Y, Kang J, Wang QY. [Research progress of methods for assessing exercise endurance in patients with chronic obstructive pulmonary disease]. Zhonghua Jie He He Hu Xi Za Zhi 2019; 42:389-392. [PMID: 31137118 DOI: 10.3760/cma.j.issn.1001-0939.2019.05.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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24
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Peltier D, Robine N, Hou G, Oravecz-Wilson K, Zajac C, Radosevich M, Kim S, Taylor A, Sun Y, Fujiwara H, Reddy P. Long Non-Coding RNA Regulation of Allogeneic T-Cells. Biol Blood Marrow Transplant 2019. [DOI: 10.1016/j.bbmt.2018.12.671] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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25
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Lu Z, Wang J, Zheng Y, Yang S, Liu M, Chen X, Wang C, Hou G. Wild-type phosphatase and tensin homolog deleted on chromosome 10 improved the sensitivity of cells to rapamycin through regulating phosphorylation of Akt in esophageal squamous cell carcinoma. Dis Esophagus 2017; 30:1-8. [PMID: 26725440 DOI: 10.1111/dote.12448] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Esophageal squamous cell carcinoma (ESCC) is one of the most frequently diagnosed cancers in China, but the etiology and mode of carcinogenesis of this disease remain poorly understood. Phosphatase and tensin homolog deleted on chromosome 10 (PTEN), as a negative regulator of Akt/mTOR pathway, frequently mutates or is inactive in many cancers. Although mTOR has been thought a promising cancer therapeutic target, the sensitivity of tumor cells to rapamycin was still to be revaluated. In this study, we measured the effects of rapamycin on cell proliferation and phosphorylation of Akt in ESCC cells with varying degrees of differentiation. And then, the relationship between PTEN status and the sensitivity of cells to rapamycin was investigated in EC9706 cells with or without wild-type PTEN in vitro and in vivo. The results demonstrated ESCC cells with poor differentiation were insensitive to rapamycin of high concentration and rapamycin obviously promoted the phosphorylation of Akt in these cells, but it had no obvious effects on p-Akt in cells with well differentiation. Also, we showed that wild-type PTEN improved the sensitivity of poor differentiation cells to rapamycin through inhibiting phosphorylation of Akt in vitro and in vivo. This study explored the possible molecular mechanism of some ESCC cells insensitive to rapamycin and provided a measure for treating ESCC patients with PTEN inactivation using mTOR inhibitors.
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Affiliation(s)
- Z Lu
- Department of Clinical Pharmacy, School of Pharmaceutical Sciences, Zhengzhou University, China
| | - J Wang
- Department of Clinical Pharmacy, School of Pharmaceutical Sciences, Zhengzhou University, China
| | - Y Zheng
- Department of Clinical Pharmacy, School of Pharmaceutical Sciences, Zhengzhou University, China
| | - S Yang
- Department of Clinical Pharmacy, School of Pharmaceutical Sciences, Zhengzhou University, China
| | - M Liu
- Oncology Department, People's Hospital of Henan Province, China
| | - X Chen
- Department of Clinical Pharmacy, School of Pharmaceutical Sciences, Zhengzhou University, China
| | - C Wang
- Department of Clinical Pharmacy, School of Pharmaceutical Sciences, Zhengzhou University, China.,New Drug Research and Development Centre of Zhengzhou University, Zhengzhou, China
| | - G Hou
- Department of Clinical Pharmacy, School of Pharmaceutical Sciences, Zhengzhou University, China.,New Drug Research and Development Centre of Zhengzhou University, Zhengzhou, China
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Toubai T, Rossi C, Hou G, Oravecz-Wilson K, Liu C, Mathewson N, Sun Y, Wu J, Zheng P, Liu Y, Choi SW, Reddy P. Siglec-G Expression on Donor T Cells Controls Severity of GVHD. Biol Blood Marrow Transplant 2015. [DOI: 10.1016/j.bbmt.2014.11.061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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27
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Sun H, Zhan Y, Liang T, Zhang C, Song J, Han J, Hou G. In vivo Toll-like receptor 5 (TLR5) imaging with radiolabeled anti-TLR5 monoclonal antibody in rapamycin-treated mouse allogeneic skin transplantation model. Transpl Infect Dis 2015; 17:80-8. [PMID: 25573439 DOI: 10.1111/tid.12332] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Revised: 09/17/2014] [Accepted: 10/07/2014] [Indexed: 12/28/2022]
Abstract
BACKGROUND In organ transplantation, increasing evidence, both in experimental and human studies, indicates that Toll-like receptor (TLR) activation is involved in the innate immune recognition of allograft. TLR5, the only protein recognition receptor of TLRs, is indicated potentially to be the immune regulation target. This study was designed to determine whether TLR5 could be a biomarker for in vivo allograft visualization, after immunosuppressant rapamycin treatment, using radiolabeled sodium iodide ((131) I)-anti-TLR5 monoclonal antibody (mAb). METHODS BALB/c mice were transplanted with C57BL/6 skin, with/without rapamycin treatment (the rapamycin-treated group and the phosphate buffered saline [PBS]-rejection group, respectively). In vivo dynamic whole-body phosphor-autoradiography and ex vivo biodistribution studies were conducted after (131) I-anti-TLR5 mAb injection. RESULTS Dynamic phosphor-autoradiography imaging showed clear graft localization from 12 h onward. At 72 h after injection, graft uptake quantified from images was higher for the rapamycin-treated group (26,448 ± 904 digital light units [DLU]/mm(2) ), compared with the PBS-treated allo-rejection group (9176 ± 576 DLU/mm(2) ). Treatment with anti-TLR5 mAb inhibited graft uptake. Organ biodistribution study reflected the same tendency, and (131) I-anti-TLR5 mAb uptake reached a maximum of 12.05 ± 1.86 %ID/g (percent injected dose per gram) at 1 h, and graft-to-native skin ratio reached 8.10 ± 0.10 %ID/g at 72 h after injection in rapamycin-treated grafts. CONCLUSION Radiolabeled anti-TLR5 mAb showed higher uptake in allo-treated grafts compared with allo-rejection grafts, which was proved by non-invasive dynamic phosphor-autoradiography imaging, and invasive ex vivo biodistribution. Radiolabeled anti-TLR5 mAb is a new tracer for non-invasive in vivo imaging of TLR5 in rapamycin-treated allograft.
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Affiliation(s)
- H Sun
- Key Laboratory for Experimental Teratology of the Ministry of Education and Institute of Experimental Nuclear Medicine, School of Medicine, Shandong University, Jinan, Shandong, China
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Hou G, Wu V, Singh G, Holzman LB, Tsui CC. Ret is critical for podocyte survival following glomerular injury in vivo. Am J Physiol Renal Physiol 2015; 308:F774-83. [PMID: 25587123 DOI: 10.1152/ajprenal.00483.2014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Accepted: 01/06/2015] [Indexed: 12/16/2022] Open
Abstract
Podocyte injury and loss directly cause proteinuria and the progression to glomerulosclerosis. Elucidation of the mechanisms of podocyte survival and recovery from injury is critical for designing strategies to prevent the progression of glomerular diseases. Glial cell line-derived neurotrophic factor (GDNF) and its receptor tyrosine kinase, Ret, are upregulated in both nonimmune and immune-mediated in vitro and in vivo models of glomerular diseases. We investigated whether Ret, a known receptor tyrosine kinase critical for kidney morphogenesis and neuronal growth and development, is necessary for glomerular and podocyte development and survival in vivo. Since deletions of both GDNF and Ret result in embryonic lethality due to kidney agenesis, we examined the role of Ret in vivo by generating mice with a conditional deletion of Ret in podocytes (Ret(flox/flox); Nphs2-Cre). In contrast to the lack of any developmental and maintenance deficits, Ret(flox/flox); Nphs2-Cre mice showed a significantly enhanced susceptibility to adriamycin nephropathy, a rodent model of focal segmental glomerulosclerosis. Thus, these findings demonstrated that the Ret signaling pathway is important for podocyte survival and recovery from glomerular injury in vivo.
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Affiliation(s)
- Guoqing Hou
- Division of Nephrology, Department of Internal Medicine, University of Michigan School of Medicine, Ann Arbor, Michigan; and
| | - Victoria Wu
- Division of Nephrology, Department of Internal Medicine, University of Michigan School of Medicine, Ann Arbor, Michigan; and
| | - Gulmohar Singh
- Division of Nephrology, Department of Internal Medicine, University of Michigan School of Medicine, Ann Arbor, Michigan; and
| | - Lawrence B Holzman
- Division of Renal Electrolyte and Hypertension, Department of Internal Medicine, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania
| | - Cynthia C Tsui
- Division of Nephrology, Department of Internal Medicine, University of Michigan School of Medicine, Ann Arbor, Michigan; and
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Mathewson N, Toubai T, Sun Y, Wu J, Oravecz-Wilson K, Wang Y, Hou G, Reddy P. Neddylation regulates T cell responses. (TRAN3P.914). The Journal of Immunology 2014. [DOI: 10.4049/jimmunol.192.supp.202.53] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
Post-translational modifications (PTM) of proteins regulate cellular processes by proteasomal degradation. PTM of Cullin-RING ligase (CRL) protein via neddylation and the presence of its critical adapter element, sensitive to apoptosis gene (SAG) protein, modulate the process of neddylation-dependent ubiquitination. The role of neddylated proteins in regulating T cells is not known. We explored the role of neddylation in T cells by utilizing two different, but complementary approaches. We generated a T-cell specific knockout (SLCK-KO) of SAG (critical for the neddylation process) and utilized a small molecule inhibitor specific for neddylation (MLN4924). Phenotypic analysis of thymic and splenic T cells from SLCK-KO showed no differences when compared to WT. In vitro analysis of SLCK-KO T cells, with either allo-splenocytes or non-specific CD3/CD28 antibodies demonstrated reduced activation (CD69, CD44), proliferation, and secretion of T helper signature cytokines (IFNγ, IL-4, IL-17) (P<0.003). In vivo studies utilizing multiple MHC disparate models of BMT (B6→BALB/c, B6→B6D2F1), demonstrated that SLCK-KO T cells in the recipient animals caused reduced severity of GVHD and increased survival (P<0.01). Similar results were obtained in vitro and in vivo with small molecule, MLN4924. Our results demonstrate a novel biological role for neddylation in regulating T cell functions in vitro and in vivo.
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Affiliation(s)
- Nathan Mathewson
- 1Internal Medicine, Hematology/Oncology, University of Michigan Health System, Ann Arbor, MI
- 2Graduate Program in Immunology, University of Michigan Medical School, Ann Arbor, MI
| | - Tomomi Toubai
- 1Internal Medicine, Hematology/Oncology, University of Michigan Health System, Ann Arbor, MI
| | - Yaping Sun
- 1Internal Medicine, Hematology/Oncology, University of Michigan Health System, Ann Arbor, MI
| | - Julia Wu
- 1Internal Medicine, Hematology/Oncology, University of Michigan Health System, Ann Arbor, MI
- 2Graduate Program in Immunology, University of Michigan Medical School, Ann Arbor, MI
| | | | - Ying Wang
- 1Internal Medicine, Hematology/Oncology, University of Michigan Health System, Ann Arbor, MI
| | - Guoqing Hou
- 1Internal Medicine, Hematology/Oncology, University of Michigan Health System, Ann Arbor, MI
| | - Pavan Reddy
- 1Internal Medicine, Hematology/Oncology, University of Michigan Health System, Ann Arbor, MI
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Mathewson N, Toubai T, Sun Y, Wang Y, Oravecz-Wilson K, Hou G, Wu J, Reddy P. Targeting Sag in Donor T Cells As a Novel Strategy for Reducing Gvhd. Biol Blood Marrow Transplant 2014. [DOI: 10.1016/j.bbmt.2013.12.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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31
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Zhang J, Zhang S, Hou G, Shao Y, Zhang X. Abstract P3-02-04: QM-FISH analysis of the genes involved in the G1/S checkpoint signaling pathway in triple-negative breast cancer. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p3-02-04] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
OBJECTIVES: To analyze copy number alterations(CNAs) of the genes involved in the G1/S checkpoint signaling pathway of triple-negative breast cancer (TNBC) and non- triple-negative breast cancer(non-TNBC) and in order to find specific CNAs associated with overall survive for TNBC.In all,to provide an effective target for future treatment.
METHODS: We selected the samples randomly form Tianjin Cancer Hospital between August, 2006 and August, 2007,which contained one hundred TNBC cases and one hundred non-TNBC cases. Quantitative mμlti-gene fluorescence in situ hybridization (QM-FISH) was used to study CNAs of the genes involved in the G1/S checkpoint signaling pathway, including CCND1,c-Myc,p21, CHEK2, p16, Rb1, Mdm2and p53.
RESULTS: The amplification rates of c-Myc and the deletion rates of p53 in TNBC tended to be higher than those in non-TNBC, whereas the amplification rates of CCND1 and Mdm2 in non-TNBC tended to be higher than those in TNBC. In Kaplan-Meier analysis, the amplification of CCND1 (P = 0.02) and c-Myc (P = 0.02) as well as the deletion of p53 (P = 0.01) predicted worse survival in the TNBC group. While in the non-TNBC group, the amplification of CCND1 (P = 0.01) and Mdm2 (P = 0.04) as well as the deletion of p53 (P = 0.049) were associated with worse survival. The amplification of c-Myc and the deletion of p53 in TNBC were associated with higher mortality risk (HR,2.87;95%CI,1.14-7.21[P = 0.03]; HR, 3.34;95%CI, 1.22-9.09 [P = 0.02]), whereas the mortality risk tended to be higher in the patients with amplification of CCND1 (HR, 4.35;95%CI,1.23-15.39 [P = 0.02])in non-TNBC.
CONCLUSIONS: The amplification rates of c-Myc and deletion rates of p53 in TNBC tended to be higher than those in non-TNBC, whereas the amplification rate of CCND1 and Mdm2 tended to be higher in non-TNBC. c-Myc and p53 were independent prognostic factors for TNBC, while CCND1 was the independent prognostic factors for non-TNBC.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P3-02-04.
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Affiliation(s)
- J Zhang
- China Tianjin Breast Cancer Prevention, Treatment and Research Center, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; Key Laboratory of Breast Cancer Prevention and Therapy of Ministry of Education; Key Laboratory of Cancer Prevention and Therapy
| | - S Zhang
- China Tianjin Breast Cancer Prevention, Treatment and Research Center, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; Key Laboratory of Breast Cancer Prevention and Therapy of Ministry of Education; Key Laboratory of Cancer Prevention and Therapy
| | - G Hou
- China Tianjin Breast Cancer Prevention, Treatment and Research Center, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; Key Laboratory of Breast Cancer Prevention and Therapy of Ministry of Education; Key Laboratory of Cancer Prevention and Therapy
| | - Y Shao
- China Tianjin Breast Cancer Prevention, Treatment and Research Center, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; Key Laboratory of Breast Cancer Prevention and Therapy of Ministry of Education; Key Laboratory of Cancer Prevention and Therapy
| | - X Zhang
- China Tianjin Breast Cancer Prevention, Treatment and Research Center, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; Key Laboratory of Breast Cancer Prevention and Therapy of Ministry of Education; Key Laboratory of Cancer Prevention and Therapy
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Zhang J, Zhang X, Yu F, Liu J, Zhang S, Hao X, Hou G. Abstract P1-08-05: The prognostic significance of Ki-67 expression before and after neoadjuvant anthracycline-taxane-based chemotherapy in different biological breast cancer phenotypes. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p1-08-05] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Purpose
This study was conducted to analyze the Ki-67 expression before and after neoadjuvant chemotherapy and clinical pathology characteristics of different biological breast cancer phenotypes at our center. A correlation study was performed between Ki-67 index change and the prognosis of different biological breast cancer phenotypes and prognosis in Northern China.
Methods
A regression analysis was performed on 213 patients with invasive breast carcinoma accepted NAC admitted to Tianjin Medical University Cancer Institute and Hospital of Breast Surgery from January 2007 to April 2008. These patients were subtyped by hormone receptor status and HER2 status.The Ki67 index (percentage of Ki67-positive cancer nuclei) were determined immunohistochemically. The prognostic value of the Ki-67 index for different biological breast cancer phenotypes disease-free survival (DFS) and overall survival (OS) was investigated by use of Kaplan–Meier curves and multivariable Cox regression.
Results
The overall pathologic CR (pCR) rate, defined as no invasive residuals in breast and axilla, was 17.8%. The highest pCR rate of 32.1% was observed in patients with HR-/HER2+ tumors, which is 11.4%, 20.0% and 26.2% in HR+/HER2- HR+/HER2-,HR+/HER2+and HR-/HER2- tumor respectively(P = 0.024).The Ki-67 expression of pre-NAC and post-NAC have prognostic significance in HER2- breast cancer, which have not significance different in HER2+ breast cancer:The best Ki-67 idex cut point of pre-NAC and post-NAC to predict long-term survival was respectively 20% and 10% in HR+/HER2- breast cancer. Moreover, patients with a higher Ki-67 index (> cut-off point) showed significantly lower 5year-DFS/OS rates compared with those whose Ki-67 index were below cut-off point. In addition, Ki-67 index of post-NAC were independent prognostic factors for 5 year disease-free survival of patients with HR+/HER2- breast cancer. Ki-67 change between pre- and post-NAC as an independent prognostic factor independently predict prognosis in the patients who have not achieved pCR, while the best cut-off point was 18%.
Conclusion
The Ki-67 index of pre- and post-NAC could predict the prognosis in the patients with HER2- breast cancer. Moreover, the Ki-67 change between pre- and post-NAC was an independent prognostic factor in the patients who have not achieved pCR.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P1-08-05.
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Affiliation(s)
- J Zhang
- China Tianjin Breast Cancer Prevention, Treatment and Research Center, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; Key Laboratory of Breast Cancer Prevention and Therapy of Ministry of Education; Key Laboratory of Cancer Prevention and Therapy
| | - X Zhang
- China Tianjin Breast Cancer Prevention, Treatment and Research Center, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; Key Laboratory of Breast Cancer Prevention and Therapy of Ministry of Education; Key Laboratory of Cancer Prevention and Therapy
| | - F Yu
- China Tianjin Breast Cancer Prevention, Treatment and Research Center, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; Key Laboratory of Breast Cancer Prevention and Therapy of Ministry of Education; Key Laboratory of Cancer Prevention and Therapy
| | - J Liu
- China Tianjin Breast Cancer Prevention, Treatment and Research Center, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; Key Laboratory of Breast Cancer Prevention and Therapy of Ministry of Education; Key Laboratory of Cancer Prevention and Therapy
| | - S Zhang
- China Tianjin Breast Cancer Prevention, Treatment and Research Center, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; Key Laboratory of Breast Cancer Prevention and Therapy of Ministry of Education; Key Laboratory of Cancer Prevention and Therapy
| | - X Hao
- China Tianjin Breast Cancer Prevention, Treatment and Research Center, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; Key Laboratory of Breast Cancer Prevention and Therapy of Ministry of Education; Key Laboratory of Cancer Prevention and Therapy
| | - G Hou
- China Tianjin Breast Cancer Prevention, Treatment and Research Center, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; Key Laboratory of Breast Cancer Prevention and Therapy of Ministry of Education; Key Laboratory of Cancer Prevention and Therapy
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Choi SW, Braun T, Chang L, Ferrara JLM, Pawarode A, Magenau JM, Hou G, Beumer JH, Levine JE, Goldstein S, Couriel DR, Stockerl-Goldstein K, Krijanovski OI, Kitko C, Yanik GA, Lehmann MH, Tawara I, Sun Y, Paczesny S, Mapara MY, Dinarello CA, DiPersio JF, Reddy P. Vorinostat plus tacrolimus and mycophenolate to prevent graft-versus-host disease after related-donor reduced-intensity conditioning allogeneic haemopoietic stem-cell transplantation: a phase 1/2 trial. Lancet Oncol 2013; 15:87-95. [PMID: 24295572 DOI: 10.1016/s1470-2045(13)70512-6] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Acute graft-versus-host disease (GVHD) remains a barrier to more widespread application of allogeneic haemopoietic stem-cell transplantation. Vorinostat is an inhibitor of histone deacetylases and was shown to attenuate GVHD in preclinical models. We aimed to study the safety and activity of vorinostat, in combination with standard immunoprophylaxis, for prevention of GVHD in patients undergoing related-donor reduced-intensity conditioning haemopoietic stem-cell transplantation. METHODS Between March 31, 2009, and Feb 8, 2013, we did a prospective, single-arm, phase 1/2 study at two centres in the USA. We recruited adults (aged ≥18 years) with high-risk haematological malignant diseases who were candidates for reduced-intensity conditioning haemopoietic stem-cell transplantation and had an available 8/8 or 7/8 HLA-matched related donor. All patients received a conditioning regimen of fludarabine (40 mg/m(2) daily for 4 days) and busulfan (3.2 mg/kg daily for 2 days) and GVHD immunoprophylaxis of mycophenolate mofetil (1 g three times a day, days 0-28) and tacrolimus (0.03 mg/kg a day, titrated to a goal level of 8-12 ng/mL, starting day -3 until day 180). Vorinostat (either 100 mg or 200 mg, twice a day) was initiated 10 days before haemopoietic stem-cell transplantation until day 100. The primary endpoint was the cumulative incidence of grade 2-4 acute GVHD by day 100. This trial is registered with ClinicalTrials.gov, number NCT00810602. FINDINGS 50 patients were assessable for both toxic effects and response; eight additional patients were included in the analysis of toxic effects. All patients engrafted neutrophils and platelets at expected times after haemopoietic stem-cell transplantation. The cumulative incidence of grade 2-4 acute GVHD by day 100 was 22% (95% CI 13-36). The most common non-haematological adverse events included electrolyte disturbances (n=15), hyperglycaemia (11), infections (six), mucositis (four), and increased activity of liver enzymes (three). Non-symptomatic thrombocytopenia after engraftment was the most common haematological grade 3-4 adverse event (nine) but was transient and all cases resolved swiftly. INTERPRETATION Administration of vorinostat in combination with standard GVHD prophylaxis after related-donor reduced-intensity conditioning haemopoietic stem-cell transplantation is safe and is associated with a lower than expected incidence of severe acute GVHD. Future studies are needed to assess the effect of vorinostat for prevention of GVHD in broader settings of haemopoietic stem-cell transplantation. FUNDING Merck, Leukemia and Lymphoma Society, National Institutes of Health, St Baldrick's Foundation, Michigan Institute for Clinical and Health Research.
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Affiliation(s)
- Sung Won Choi
- Blood and Marrow Transplantation Program, University of Michigan, Ann Arbor, MI, USA
| | - Thomas Braun
- Department of Biostatistics, University of Michigan, Ann Arbor, MI, USA
| | - Lawrence Chang
- Blood and Marrow Transplantation Program, University of Michigan, Ann Arbor, MI, USA
| | - James L M Ferrara
- Blood and Marrow Transplantation Program, University of Michigan, Ann Arbor, MI, USA
| | - Attaphol Pawarode
- Blood and Marrow Transplantation Program, University of Michigan, Ann Arbor, MI, USA
| | - John M Magenau
- Blood and Marrow Transplantation Program, University of Michigan, Ann Arbor, MI, USA
| | - Guoqing Hou
- Blood and Marrow Transplantation Program, University of Michigan, Ann Arbor, MI, USA
| | - Jan H Beumer
- Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, PA, USA
| | - John E Levine
- Blood and Marrow Transplantation Program, University of Michigan, Ann Arbor, MI, USA
| | - Steve Goldstein
- Blood and Marrow Transplantation Program, University of Michigan, Ann Arbor, MI, USA
| | - Daniel R Couriel
- Blood and Marrow Transplantation Program, University of Michigan, Ann Arbor, MI, USA
| | | | | | - Carrie Kitko
- Blood and Marrow Transplantation Program, University of Michigan, Ann Arbor, MI, USA
| | - Gregory A Yanik
- Blood and Marrow Transplantation Program, University of Michigan, Ann Arbor, MI, USA
| | - Michael H Lehmann
- Department of Cardiology, University of Michigan, Ann Arbor, MI, USA
| | - Isao Tawara
- Hematology-Oncology, Mie University Hospital, Mie, Japan
| | - Yaping Sun
- Blood and Marrow Transplantation Program, University of Michigan, Ann Arbor, MI, USA
| | - Sophie Paczesny
- Pediatric Hematology Oncology, Indiana University, Indianapolis, IN, USA
| | - Markus Y Mapara
- Blood and Marrow Transplantation Program, Columbia University, New York, NY, USA
| | - Charles A Dinarello
- Department of Medicine, University of Colorado, Aurora, CO, USA; Department of Medicine, University Medical Center Nijmegen, Netherlands
| | - John F DiPersio
- Department of Cardiology, University of Michigan, Ann Arbor, MI, USA
| | - Pavan Reddy
- Blood and Marrow Transplantation Program, University of Michigan, Ann Arbor, MI, USA.
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Mathewson N, Toubai T, Sun Y, Tamaki H, Wang Y, Oravecz-Wilson K, Kapeles S, Hou G, Reddy P. A critical role for neddylation in regulating dendritic cell function. (P1369). The Journal of Immunology 2013. [DOI: 10.4049/jimmunol.190.supp.63.39] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
Post-translational modifications (PTMs) of proteins modulate cellular processes. However, the role, specifically that of neddylation (a type of PTM), in regulating immune cells is not known. Neddylation of Cullin-RING ligase (CRL) protein modulates the process of ubiquitination. Thus, CRL activity is critical for the quotidian functions of cells. We explored the role of neddylation in dendritic cells (DCs) utilizing the small molecule inhibitor of neddylation (MLN4924) and the knockdown of SAG, a critical adapter element of CRL. Inhibition of neddylation in the DC significantly reduced the expression and release of several proinflammatory cytokines (TNFα, IL-6) and significantly reduced the ability of DCs to stimulate T cells (P<0.001) following stimulation by several TLR and NLR ligands. This suppression of DC functions was more than that caused by the known anti-inflammatory drug dexamethasone. Mechanistic studies showed that reduction of IκB degradation was critical for the suppression of DCs by the inhibitors of neddylation. This was further confirmed by the absence of NF-κB translocation and function. However, MAPK/ERK pathway was unperturbed by the inhibition of neddylation. Our results demonstrate a novel biological role of inhibition of the PTM, neddylation, in regulating DC functions.
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Affiliation(s)
- Nathan Mathewson
- 1Internal Medicine, Hematology/Oncology, University of Michigan, Ann Arbor, MI
- 2Graduate Program in Immunology, Univ. of Michigan Medical School, Ann Arbor, MI
| | - Tomomi Toubai
- 1Internal Medicine, Hematology/Oncology, University of Michigan, Ann Arbor, MI
| | - Yaping Sun
- 1Internal Medicine, Hematology/Oncology, University of Michigan, Ann Arbor, MI
| | - Hiroya Tamaki
- 1Internal Medicine, Hematology/Oncology, University of Michigan, Ann Arbor, MI
| | - Ying Wang
- 1Internal Medicine, Hematology/Oncology, University of Michigan, Ann Arbor, MI
| | | | - Steven Kapeles
- 1Internal Medicine, Hematology/Oncology, University of Michigan, Ann Arbor, MI
| | - Guoqing Hou
- 1Internal Medicine, Hematology/Oncology, University of Michigan, Ann Arbor, MI
| | - Pavan Reddy
- 1Internal Medicine, Hematology/Oncology, University of Michigan, Ann Arbor, MI
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Choi SW, Hou G, Beumer JH, Tawara I, Sun Y, Braun T, Chang L, Dinarello C, Ferrara JL, DiPersio JF, Reddy P. Targeting Deacetylases as a Novel Strategy for Prevention of Acute GVHD. Biol Blood Marrow Transplant 2013. [DOI: 10.1016/j.bbmt.2012.11.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Askari F, Innis D, Dick RB, Hou G, Marrero J, Greenson J, Brewer GJ. Treatment of primary biliary cirrhosis with tetrathiomolybdate: results of a double-blind trial. Transl Res 2010; 155:123-30. [PMID: 20171597 DOI: 10.1016/j.trsl.2009.09.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2009] [Revised: 09/22/2009] [Accepted: 09/23/2009] [Indexed: 11/19/2022]
Abstract
The results of a double-blind trial of tetrathiomolybdate therapy and standard of care, versus placebo and standard of care treatment, in primary biliary cirrhosis patients are presented. Baseline studies of liver function, various safety variables, ceruloplasmin, a liver biopsy for histologic analysis, and for various cytokine analyses were carried out. Patients were observed every 4 months for up to 2 years of treatment by a hepatologist for clinical evaluation and repeat of all the baseline studies except liver biopsy, which was repeated at 2 years. The primary end points were improvement in 2 liver function tests and in 1 inflammatory cytokine. Fifteen placebo patients were followed for an average of 13 months, and 13 tetrathiomolybdate patients were followed for an average of 14 months. The predefined primary end points for efficacy were met. Tetrathiomolybdate was well tolerated. Because tetrathiomolybdate has been shown in numerous animal studies to inhibit autoimmune and inflammatory processes, and because primary biliary cirrhosis is an autoimmune attack on bile ducts, these positive findings on efficacy of tetrathiomolybdate therapy in primary biliary cirrhosis fit with the animal studies and suggest the need for a longer clinical trial to examine transplant-free survival.
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Affiliation(s)
- Fred Askari
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI 48109-5720, USA
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Abstract
The background for this study is that we have observed some improvement in cirrhosis in Wilson's disease patients treated with the anticopper medicine, zinc, and another anticopper drug, tetrathiomolybdate, has completely prevented hepatic fibrosis in the carbon tetrachloride mouse model. We hypothesize that in existing cirrhosis, there may be a fine balance between fibrosis formation and fibrosis dissolution, which may be pushed in the direction of dissolution by anticopper drugs. Thus, in this study, we produced hepatic fibrosis in mice by treatment with carbon tetrachloride, then gave half the fibrotic mice tetrathiomolybdate for 3 months, while the other half of the fibrotic mice received nothing for 3 months and served as controls. Tetrathiomolybdate caused a dramatic and significant reduction in fibrosis as measured by hydroxyproline (the major amino acid constituent of collagen) levels, almost back to baseline levels, compared to controls, who had only a slight and nonsignificant reduction. It is clear from this animal study that dissolution of preexisting fibrosis can be strongly catalyzed by lowering copper levels with tetrathiomolybdate. It now becomes important to evaluate whether this approach will work in the human epidemic of cirrhotic disease resulting from diseases such as alcoholism, nonalcoholic steatohepatitis, and hepatitis C.
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Affiliation(s)
- Guoqing Hou
- Department of Human Genetics, University of Michigan Medical School, G061X MBNI, Ann Arbor, MI 48109, USA
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Tallaksen-Greene SJ, Janiszewska A, Benton K, Hou G, Dick R, Brewer GJ, Albin RL. Evaluation of tetrathiomolybdate in the R6/2 model of Huntington disease. Neurosci Lett 2009; 452:60-2. [DOI: 10.1016/j.neulet.2009.01.040] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2008] [Revised: 01/13/2009] [Accepted: 01/15/2009] [Indexed: 10/21/2022]
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Zhang X, Gao D, Hou G, Jin G, Deng Q, Kong X, Zhang D, Ling Y, Yu D, Gong Q, Zhan Q, Yao B, Lu Z. I-43 Assessment of specific antibodies to F protein in sera of Chinese hepatitis C patients treated with interferon plus ribavirin. Int J Infect Dis 2008. [DOI: 10.1016/s1201-9712(09)60046-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Hou G, Abrams GD, Dick R, Brewer GJ. Efficacy of tetrathiomolybdate in a mouse model of multiple sclerosis. Transl Res 2008; 152:239-44. [PMID: 19010295 DOI: 10.1016/j.trsl.2008.09.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2008] [Revised: 09/09/2008] [Accepted: 09/10/2008] [Indexed: 10/21/2022]
Abstract
Tetrathiomolybdate (TM) is a potent anticopper drug developed for Wilson's disease. We have found multiple efficacious results from decreasing copper levels with TM in mouse models of disease, using serum Cp as a surrogate marker of copper status and targeting Cp values of 20% to 50% of baseline. We have found efficacious results of TM therapy in mouse models of fibrosis; inflammation; damage from exogenous agents, such as acetaminophen and doxorubicin; and immune-modulated diseases, such as concanavalin A hepatitis, collagen II-induced arthritis, and the non-obese diabetic (NOD) mouse model of type I diabetes. In the current study, we examine TM efficacy in the EAE mouse model of multiple sclerosis (MS). We find that clinical scores of neurologic damage are significantly inhibited by TM therapy, whether therapy is started before MS-inducing antigen administration or after symptoms from antigen administration develop. Furthermore, we find that experimental autoimmune encephalomyelitis (EAE) treatment produces a marked increase of oxidant damage, as measured by urine isoprostane levels, and TM suppresses these isoprostane increases strongly and significantly. Finally, we find marked increases of inflammatory and immune-related cytokines in this model, and we find that TM strongly and significantly suppresses these increases.
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Affiliation(s)
- Guoqing Hou
- Department of Human Genetics, University of Michigan Medical School, Ann Arbor, Mich. 48109-0534, USA
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Dong B, Liu X, Huang X, Hou G, Cheng D, Jiao J. Vaginal administration of mifepristone: effectiveness and benefits. Fertil Steril 2008. [DOI: 10.1016/j.fertnstert.2008.07.1334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Franco C, Hou G, Bendeck MP. DISTINCT ROLES FOR DISCOIDIN DOMAIN RECEPTOR 1 (DDR1) EXPRESSED ON BONE MARROW DERIVED CELLS AND VESSEL WALL CELLS DURINGATHEROGENESIS. CLIN INVEST MED 2008. [DOI: 10.25011/cim.v31i4.4803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We have recently described a critical role for the discoidin domain receptor 1 (DDR1) collagen receptor tyrosine kinase in the regulation of fibrosis and inflammation during atherosclerotic plaque development. DDR1 isexpressed on both SMCs and macrophages; however the role of DDR1 expressed in these distinct cells during atherogenesis remains unresolved. In the current study, female Ldlr^-/- mice that were either Ddr1^+/+ or Ddr1^-/-were lethally irradiated and reconstituted with bone marrow from male Ddr1^+/+ or Ddr1^-/- donors yielding three groups of chimeric mice: Ddr1^+/+^?^+/+ (control); Ddr1^+/+^?^-/-^ (vessel wall deletion); and Ddr1^-/-^?^+/+ (bone marrow deletion). Chimeric mice were placed on an atherogenic diet for 12 weeks and hadsimilar body weights, total leukocyte counts, levels of Sry chimerism, and fasting plasma triglycerides at sacrifice, although total cholesterol was increased by 42% in Ddr1^+/+^?^-/- mice. Deletion of DDR1 inbone marrow derived cells (Ddr1^-/-^?^+/+) resulted in a 66% reduction in atherosclerotic lesion area in thedescending aorta compared to Ddr1^+/+^?^+/+ mice. Aortic sinus plaquesfrom Ddr1^-/-^?^+/+ mice were 36% smaller than Ddr1^+/+^?^+/+ plaques but the proportion of plaque area occupied by cells and matrix was similar between groups. By contrast, deletion of DDR1 in vessel wall cells (Ddr1^+/+^?^-/-) resulted in a 57% increase in atherosclerosis in the descending aorta. Furthermore, aortic sinus plaques from Ddr1^+/+ ^?^-/- mice had markedly increased fibrillar collagen and elastin accumulation compared to Ddr1^+/+^?^+/+ plaques resulting in a 156% increase in lesion area and reduced SMC and macrophage content. In conclusion, while DDR1 on bone marrow derived cells is required for plaque development, DDR1 expressed on vessel wall cells negatively regulates plaque matrix accumulation and results in the formation of larger lesions with altered cellular composition. Our data suggest a dual role for DDR1 in the regulationof atherogenesis and plaque matrix content.
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Hou G, Dick R, Zeng C, Brewer GJ. Antitumor and antiinflammatory effects of tetrathiotungstate in comparison with tetrathiomolybdate. Transl Res 2007; 149:260-4. [PMID: 17466925 DOI: 10.1016/j.trsl.2006.12.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2006] [Revised: 12/07/2006] [Accepted: 12/09/2006] [Indexed: 10/23/2022]
Abstract
Tetrathiomolybdate (TM) is an anticopper drug under development for treating Wilson's disease. Its mechanism of action involves forming a tight tripartite complex in the blood with serum albumin and available copper. When available copper levels are lowered in animals with TM, strong antiangiogenic and antitumor effects are observed. Similarly, TM has excellent efficacy in animal models of fibrotic, inflammatory, and autoimmune diseases, and it protects against heart damage from doxorubicin (DXR) and liver damage from acetaminophen, carbon tetrachloride, and concanavalin A. Tetrathiotungstate (TT) also forms a similar tripartite complex in the blood and has similar effects to TM on copper. In this article, whether TT had similar antitumor effects, and similar effects in protecting the heart against DXR toxicity, as TM was evaluated. It was found that the 2 drugs were comparable in their effects when doses were used that lowered copper availability to the same extent.
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Affiliation(s)
- Guoqing Hou
- Department of Human Genetics, University of Michigan Medical School, Ann Arbor, MI 48019-0534, USA
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Hou G, Dick R, Zeng C, Brewer GJ. Comparison of lowering copper levels with tetrathiomolybdate and zinc on mouse tumor and doxorubicin models. Transl Res 2006; 148:309-14. [PMID: 17162252 DOI: 10.1016/j.trsl.2006.06.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2006] [Revised: 06/12/2006] [Accepted: 06/12/2006] [Indexed: 12/19/2022]
Abstract
Tetrathiomolybdate (TM), presumably by lowering copper levels and availability, has shown excellent efficacy in animal models of cancer and models of injury that produce fibrotic or inflammatory damage in lung, heart, and liver. Trials in human patients are underway. If the efficacy of TM is indeed through lowering copper levels, other anticopper drugs should be equally efficacious. Zinc is an anticopper drug, with proven efficacy in Wilson's disease, a disease of copper toxicity. In this study, the efficacy of zinc is compared with TM on a mouse tumor model and on the doxorubicin model of heart damage, and it is hypothesized that when copper availability is lowered to an equivalent extent, the 2 drugs would show equivalent efficacy. No effect is found of zinc on inhibiting growth of a tumor that is markedly inhibited by TM, and zinc is found to be less effective than TM in inhibiting cardiac damage from doxorubicin. This study shows that TM's mechanism of action in protecting against doxorubicin toxicity is because of its anticopper effects, as copper supplementation eliminated the protective effect of TM. It is also hypothesized that the differences between TM and zinc may be caused by TM's mechanism of action in which it binds copper already in the body, whereas zinc does not.
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Affiliation(s)
- Guoqing Hou
- Department of Human Genetics, University of Michigan Medical School, Ann Arbor, Mich 48109-0543, USA
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McCubbin MD, Hou G, Abrams GD, Dick R, Zhang Z, Brewer GJ. Tetrathiomolybdate is effective in a mouse model of arthritis. J Rheumatol 2006; 33:2501-6. [PMID: 17143984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
OBJECTIVE To test for protective effects of therapy with tetrathiomolybdate, a copper-lowering drug, against collagen-induced arthritis in mice. METHODS Mice were injected with bovine collagen II, and limb joint swelling and erythema were scored. Tetrathiomolybdate treated mice received drug by oral gavage or in drinking water. Plasma ceruloplasmin was followed as a measure of body copper status, and maintained between 20 and 60% of baseline. Urine for isoprostane studies was collected in metabolic cages. At sacrifice, blood was collected for cytokine assays, and hind limbs fixed in formalin. RESULTS Tetrathiomolybdate strongly protected against the collagen-induced arthritis as reflected in scores of swelling and erythema, and as seen histologically. Further, tetrathiomolybdate strongly protected against the increase in urine isoprostanes (a marker of oxidant damage) seen in collagen treated controls. The drug also protected against the increase in interleukin 2, interleukin 1beta, and tumor necrosis factor-a levels seen in collagen treated controls. CONCLUSION Based on the positive results reported here, and the good safety profile of tetrathiomolybdate in human studies so far, a trial of tetrathiomolybdate in arthritis syndromes seems warranted.
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Affiliation(s)
- Mark D McCubbin
- Department of Human Genetics, University of Michigan Medical School, Ann Arbor, Michigan 48109-0534, USA
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Xu YL, Tian MQ, Hou G, Chen Q, Wen JX. Novel Fluorinated Liquid Crystals. Part VIII. The Synthesis and Mesomorphic Properties of 4“-n-Alkoxyphenyl 4”-[(4-n-Alkoxy-2, 3, 5, 6-tetrafluorophenyl)ethynyl]benzoates. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/10587259608042229] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Y.-L Xu
- a Shanghai Institute of Organic Chemistry, Chinese Academy of Science , 354 Fenglin Lu, Shanghai , 200032 , China
| | - M.-Q. Tian
- a Shanghai Institute of Organic Chemistry, Chinese Academy of Science , 354 Fenglin Lu, Shanghai , 200032 , China
| | - G. Hou
- a Shanghai Institute of Organic Chemistry, Chinese Academy of Science , 354 Fenglin Lu, Shanghai , 200032 , China
| | - Q. Chen
- a Shanghai Institute of Organic Chemistry, Chinese Academy of Science , 354 Fenglin Lu, Shanghai , 200032 , China
| | - J.-X. Wen
- a Shanghai Institute of Organic Chemistry, Chinese Academy of Science , 354 Fenglin Lu, Shanghai , 200032 , China
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Brewer GJ, Dick R, Zeng C, Hou G. The use of tetrathiomolybdate in treating fibrotic, inflammatory, and autoimmune diseases, including the non-obese diabetic mouse model. J Inorg Biochem 2006; 100:927-30. [PMID: 16321443 DOI: 10.1016/j.jinorgbio.2005.10.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2005] [Revised: 09/28/2005] [Accepted: 10/03/2005] [Indexed: 11/28/2022]
Abstract
Tetrathiomolybdate was originally developed for use in Wilson's disease. However, lowering copper levels to below normal levels with tetrathiomolybdate has been found to have efficacy in cancer, probably by turning down signaling by angiogenic cytokines. More recently, we have shown in animals models that tetrathiomolybdate dramatically inhibits pulmonary and liver fibrosis. In other animal models, we have shown that the drug also inhibits liver damage from concanavalin A and acetaminophen, and heart damage from doxorubicin. These studies are briefly reviewed, and we then present data on tetrathiomolybdate's partially protective effect against diabetes in non-obese diabetic mice, an autoimmune model of type I diabetes. Possible mechanisms of tetrathiomolybdate's protective effect are briefly considered.
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Affiliation(s)
- George J Brewer
- Department of Human Genetics, University of Michigan Medical School, 5022 Kresge Building II, Ann Arbor MI 48109-0534, USA.
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Hou G, Dick R, Abrams GD, Brewer GJ. Tetrathiomolybdate protects against cardiac damage by doxorubicin in mice. ACTA ACUST UNITED AC 2005; 146:299-303. [PMID: 16242529 DOI: 10.1016/j.lab.2005.07.004] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2005] [Revised: 07/07/2005] [Accepted: 07/20/2005] [Indexed: 10/25/2022]
Abstract
Cardiac toxicity is the limiting factor in therapy with doxorubicin, an otherwise useful cancer drug. In this article we detail our study of a mouse model of doxorubicin-induced cardiac toxicity in which, after 4 days' treatment, doxorubicin caused marked increases in plasma concentrations of creatine kinase, lactic dehydrogenase, and troponin I, indicators of cardiac injury; marked increases in the plasma concentrations of tumor necrosis factor-alpha and interleukin-1(beta), both inflammatory cytokines; and a marked increase in the plasma concentration of interleukin-2, an indicator of cytotoxic T-cell activation. Therapy with tetrathiomolybdate, designed to limit copper availability, eliminated almost all of the increases of these six parameters in plasma. The marked protection against cardiac injury by doxorubicin in tetrathiomolybdate-treated animals suggests that tetrathiomolybdate would be of use clinically in helping prevent doxorubicin toxicity in patients. In other preclinical work, it has been shown that tetrathiomolybdate potentiates the chemotherapeutic effect of doxorubicin in cancer, so a double benefit might accrue clinically from the combined use of tetrathiomolybdate and doxorubicin. The mechanism by which tetrathiomolybdate protects against doxorubicin toxicity is of considerable interest. Our working hypothesis, based on the inhibition of interleukin-2 by tetrathiomolybdate as shown here, is that tetrathiomolybdate interrupts the inflammatory cascade at the activated-T-lymphocyte stage.
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Affiliation(s)
- Guoqing Hou
- Department of Human Genetics, University of Michigan Medical School, Ann Arbor, 48109, USA
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Dupin JP, Gryglewski RJ, Gravier D, Hou G, Casadebaig F, Swies J, Chlopicki S. Synthesis and thrombolytic activity of new thienopyrimidinone derivatives. J Physiol Pharmacol 2002; 53:625-34. [PMID: 12512697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/17/2002] [Accepted: 10/29/2002] [Indexed: 02/28/2023]
Abstract
It has been observed that ticlopidine and clopidogrel show, apart from their delayed antiplatelet properties, an immediate and transient thrombolytic action related to the ability of these thienopyridines to stimulate the secretory function of vascular endothelium. With the objective to construct new molecules with identical thrombolytic potency but at a higher level, we carried out different structural modifications in the thienopyridine chemical molecule to conclude that the presence of a second N atom in the pyridine cycle (yielding pyrimidine moiety) and the presence of an additional cycle fused to the thienyl ring would lead to enhanced thrombolytic effects. Here we report the six-step synthesis of a series of new benzothienopyrimidinone derivatives characterized by this searched for potent thrombolytic activity. The pharmacological assay used anaesthetised Wistar rats with extracorporal circulation in which arterial blood superfused thrombi adhering to a strip of collagen. Weight of thrombi was continuously monitored. Six compounds of the series were much more potent thrombolytic agents than their thienopyridine references: the effective thrombolytic dose that produced 30% of maximum thrombolysis (ED30) was at a range of 8 to 170 microg kg(-1) as compared with ED30 values of 16000 to 20000 microg kg(-1) for clopidogrel and ticlopidine respectively. Especially with the most active compound, this difference in the threshold thrombolytic dose, giving an intensity of action higher by three orders of magnitude, was accompanied by a lengthening of the response. Apart from that these compounds have shown to be synthetic thrombolytics, they certainly deserve further studying.
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Affiliation(s)
- J P Dupin
- Chair of Pharmacology, Medical College of Jagiellonian University, Cracow, Poland
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