1
|
Liang LL, Ju S, Cui ZH. [Dislocation into the anterior chamber and spontaneous repositioning of a dexamethasone intravitreal implant: a case report]. Zhonghua Yan Ke Za Zhi 2024; 60:272-274. [PMID: 38462376 DOI: 10.3760/cma.j.cn112142-20231025-00181] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
A 61-year-old male patient presented with blurred vision in the right eye for 1 day. The patient had previously undergone phacoemulsification with intraocular lens implantation (10 years ago) and intravitreal implantation of dexamethasone (due to uveitis) in the eye. There was edema in the inferior cornea, along with Descemet membrane folds. The rod-shaped dexamethasone implant was visible in the inferior anterior chamber. Without pupil dilation, the patient was asked to keep a supine position and avoid head tilting for 1 day. The implant spontaneously relocated into the vitreous cavity, resulting in a reduction of corneal edema. This suggests that the dislocation of the intravitreal implant into the anterior chamber may be caused by a local zonular abnormality, and the dislocated implant has the potential to reposition itself spontaneously.
Collapse
Affiliation(s)
- L L Liang
- Department of Ophthalmology, First Hospital of Jilin University, Changchun 130021, China
| | - S Ju
- Department of Ophthalmology, Traditional Chinese Medicine Hospital of Liaoyuan, Liaoyuan 123600, China
| | - Z H Cui
- Department of Ophthalmology, First Hospital of Jilin University, Changchun 130021, China
| |
Collapse
|
2
|
Tang F, Chen Y, Ge XL, Meng WZ, Han ZD, Qian B, Zhao W, Jiang XF, Fang Y, Ju S. Anisotropic magnetoresistance and electronic features of the candidate topological compound praseodymium monobismuthide. Phys Chem Chem Phys 2023; 25:25573-25580. [PMID: 37721039 DOI: 10.1039/d3cp03480a] [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: 09/19/2023]
Abstract
PrBi, a sister member of the rare-earth monopnictide family, is an excellent candidate for studying extreme magnetoresistance and nontrivial topological electronic states. In this study, we perform angular magnetoresistance measurements as well as bulk and surface band structure calculations on this compound. PrBi's magnetoresistance is revealed to be significantly angle-dependent and shows a fourfold symmetry as always observed in the nonmagnetic isostructural counterparts, including LaSb, LaBi, and LuBi. Its angular magnetoresistance can be reproduced well using the semiclassical two-band model. The deduced parameters suggest that PrBi hosts an elongated electron pocket with a mobility anisotropy of ∼3.13 and is slightly uncompensated in its carrier concentration. Our bulk and surface band structure calculations confirm the anisotropic electronic features. Moreover, we reveal that a nodal-line-shaped surface state appears at the X̄ point, and is associated with the quadratic dispersion along the -X̄ direction, and the linear type-I Dirac dispersion along the X̄-M̄ direction. Owing to the type-I Dirac dispersion feature, PrBi could serve as a promising material platform for studying many unexpected physical properties, such as the highly anisotropic transport and valley polarization of electrons.
Collapse
Affiliation(s)
- F Tang
- Jiangsu Key Laboratory of Thin Films, School of Physical Science and Technology, Soochow University, Suzhou 215006, China.
- Jiangsu Laboratory of Advanced Functional Materials, School of Electronic and Information Engineering, Changshu Institute of Technology, Changshu 215500, China.
| | - Y Chen
- Jiangsu Key Laboratory of Thin Films, School of Physical Science and Technology, Soochow University, Suzhou 215006, China.
- Jiangsu Laboratory of Advanced Functional Materials, School of Electronic and Information Engineering, Changshu Institute of Technology, Changshu 215500, China.
| | - X-L Ge
- Jiangsu Laboratory of Advanced Functional Materials, School of Electronic and Information Engineering, Changshu Institute of Technology, Changshu 215500, China.
| | - W-Z Meng
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China
| | - Z-D Han
- Jiangsu Laboratory of Advanced Functional Materials, School of Electronic and Information Engineering, Changshu Institute of Technology, Changshu 215500, China.
| | - B Qian
- Jiangsu Laboratory of Advanced Functional Materials, School of Electronic and Information Engineering, Changshu Institute of Technology, Changshu 215500, China.
| | - W Zhao
- Department of Materials Science and Engineering, Monash University, Clayton, VIC 3800, Australia
| | - X-F Jiang
- Jiangsu Laboratory of Advanced Functional Materials, School of Electronic and Information Engineering, Changshu Institute of Technology, Changshu 215500, China.
| | - Y Fang
- Jiangsu Laboratory of Advanced Functional Materials, School of Electronic and Information Engineering, Changshu Institute of Technology, Changshu 215500, China.
| | - S Ju
- Jiangsu Key Laboratory of Thin Films, School of Physical Science and Technology, Soochow University, Suzhou 215006, China.
| |
Collapse
|
3
|
Li RY, Zhao DL, Yu JW, Wu Y, Chen XH, Ge H, Li C, Ju S. Intracranial plaque characteristics on high-resolution MRI and high-sensitivity C-reactive protein levels: association and clinical relevance in acute cerebral infarction. Clin Radiol 2023; 78:e442-e450. [PMID: 36804273 DOI: 10.1016/j.crad.2023.01.004] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 12/30/2022] [Accepted: 01/11/2023] [Indexed: 02/04/2023]
Abstract
AIM To investigate the association between intracranial plaque characteristics and high-sensitivity C-reactive protein (hs-CRP) levels, and their combined effects on the occurrence of acute cerebral infarction (ACI). MATERIALS AND METHODS One hundred and forty-three patients with recent ischaemic events in the territory of middle cerebral artery or basilar artery were enrolled and divided into the ACI group (n=93) and non-ACI group (n=50) according to clinical data and diffusion-weighting imaging (DWI) results. All recruited patients underwent high-resolution magnetic resonance imaging (MRI) to assess intracranial plaque characteristics, including plaque enhancement, standardised wall index, stenosis ratio, T1 hyperintense component, remodelling pattern, plaque area, plaque burden, and maximum wall thickness. hs-CRP levels were further grouped into the low group (<1 mg/l), the intermediate group (1-3 mg/l), and the high group (≥3 mg/l). Multivariate logistic regression and receiver operating characteristic curve were constructed to evaluate the association between intracranial plaque characteristics and hs-CRP levels, as well as their synergistic effects on determining the occurrence of ACI. RESULTS High hs-CRP levels were associated with strong plaque enhancement (p<0.001, odds ratio [OR] = 7.497). Strong plaque enhancement (p=0.002, OR=2.109) and high hs-CRP levels (p=0.009, OR=3.893) were independently associated with the occurrence of ACI after adjustments for sex, age, and other traditional atherosclerotic risk factors. The combination of hs-CRP levels and strong plaque enhancement provided incremental information to determine ACI with an AUC of 0.823, which was significantly higher than that of strong plaque enhancement (0.711) and hs-CRP levels (0.686), respectively. CONCLUSION High hs-CRP levels were associated with strong plaque enhancement. The synergistic effects of hs-CRP levels and strong plaque enhancement provided incremental effects on the occurrence of ACI.
Collapse
Affiliation(s)
- R-Y Li
- Jiangsu Key Laboratory of Molecular and Functional Imaging, Department of Radiology, Zhongda Hospital, Medical School, Southeast University, 87 Dingjiaqiao Road, Gulou District, Nanjing, 210009, Jiangsu Province, China
| | - D-L Zhao
- Jiangsu Key Laboratory of Molecular and Functional Imaging, Department of Radiology, Zhongda Hospital, Medical School, Southeast University, 87 Dingjiaqiao Road, Gulou District, Nanjing, 210009, Jiangsu Province, China.
| | - J-W Yu
- Jiangsu Key Laboratory of Molecular and Functional Imaging, Department of Radiology, Zhongda Hospital, Medical School, Southeast University, 87 Dingjiaqiao Road, Gulou District, Nanjing, 210009, Jiangsu Province, China
| | - Y Wu
- Jiangsu Key Laboratory of Molecular and Functional Imaging, Department of Radiology, Zhongda Hospital, Medical School, Southeast University, 87 Dingjiaqiao Road, Gulou District, Nanjing, 210009, Jiangsu Province, China
| | - X-H Chen
- Jiangsu Key Laboratory of Molecular and Functional Imaging, Department of Radiology, Zhongda Hospital, Medical School, Southeast University, 87 Dingjiaqiao Road, Gulou District, Nanjing, 210009, Jiangsu Province, China
| | - H Ge
- Jiangsu Key Laboratory of Molecular and Functional Imaging, Department of Radiology, Zhongda Hospital, Medical School, Southeast University, 87 Dingjiaqiao Road, Gulou District, Nanjing, 210009, Jiangsu Province, China
| | - C Li
- Jiangsu Key Laboratory of Molecular and Functional Imaging, Department of Radiology, Zhongda Hospital, Medical School, Southeast University, 87 Dingjiaqiao Road, Gulou District, Nanjing, 210009, Jiangsu Province, China
| | - S Ju
- Jiangsu Key Laboratory of Molecular and Functional Imaging, Department of Radiology, Zhongda Hospital, Medical School, Southeast University, 87 Dingjiaqiao Road, Gulou District, Nanjing, 210009, Jiangsu Province, China
| |
Collapse
|
4
|
Wang N, Ju S. [Research advances on the mechanism of refractory healing of diabetic foot ulcer]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2022; 38:1085-1089. [PMID: 36418267 DOI: 10.3760/cma.j.cn501225-20220227-00038] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The number of patients with diabetic foot ulcer (DFU) has increased progressively year by year. Refractory DFU has brought great burden to the country and individuals. How to accelerate the healing of DFU has become the main emphasis of research. However currently, the mechanism of its refractory healing is not fully elucidated, and the correlation between the various mechanisms are not high. Therefore, its clinical standardization, and precise clinical diagnosis and treatment still face several challenges. Based on the progress of clinical research and basic research at home and abroad, this paper reviewed the specific mechanisms that lead to refractory DFU, with the focus on chronic inflammation, bacteria biofilm formation, high oxidative stress, growth factor inhibition, impaired microcirculation, and accumulation of advanced glycation end products.
Collapse
Affiliation(s)
- N Wang
- Peripheral Vascular Department, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| | - S Ju
- Peripheral Vascular Department, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| |
Collapse
|
5
|
Xi X, Cao T, Qian Y, Wang H, Ju S, Chen Y, Chen T, Yang J, Liang B, Hou S. CDC20 is a novel biomarker for improved clinical predictions in epithelial ovarian cancer. Am J Cancer Res 2022; 12:3303-3317. [PMID: 35968331 PMCID: PMC9360218] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 06/13/2022] [Indexed: 06/15/2023] Open
Abstract
Epithelial ovarian cancer (EOC), a common tumor of the female reproductive system, ranks first in fatalities among gynecological malignancies. Most patients find tumors at late stage and have extremely poor prognoses, which necessitates improvements in early detection. This study applied bioinformatic methods to identify potential biomarkers of EOC. First, Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses were performed on differentially expressed genes (DEGs) and hub genes, and a protein-protein interaction (PPI) network was constructed. The network of hub genes was analyzed using GeneMANIA, and an analysis of biological processes was constructed with BINGO. Lastly, hub genes were analyzed for EOC-related oncology using the Oncomine and TCGA databases, and the cBioPortal online platform. Overall, cell division cycle 20 (CDC20) was identified as a key gene in EOC. Short hairpin RNA (shRNA) was used to silence CDC20 to explore its effects on EOC cell proliferation, apoptosis and SRY-related HMG-box 2 (SOX2) expression. DEGs were enriched in pathways related to cell cycle signaling, cancer, progesterone-mediated oocyte maturation, Wnt signaling and P53 signaling. Analysis revealed high expression of CDC20 in EOC tissues and a correlation with histology and tumor grade. CDC20 levels are highest in serous adenocarcinoma, when compared to ovarian clear cell carcinoma, ovarian endometrioid carcinoma and mucinous adenocarcinoma. High CDC20 expression within the tumor is associated with poor EOC prognosis. After silencing CDC20, EOC cell proliferation and migration decreased, apoptosis increased, and SOX2 expression decreased. In conclusion, CDC20 is likely a key biomarker of EOC and may act as an upstream regulator of SOX2 to mediate the SOX2 signaling in the progression of EOC. Future application of CDC20 analysis to early detection may improve prognosis, and it has the potential to be a therapeutic target.
Collapse
Affiliation(s)
- Xiaoxue Xi
- Department of Obstetrics and Gynaecology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical UniversitySuzhou 215002, Jiangsu, China
| | - Tianyue Cao
- Department of Obstetrics and Gynaecology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical UniversitySuzhou 215002, Jiangsu, China
| | - Yonghong Qian
- Department of Obstetrics and Gynaecology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical UniversitySuzhou 215002, Jiangsu, China
| | - Huiling Wang
- Department of Obstetrics and Gynaecology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical UniversitySuzhou 215002, Jiangsu, China
| | - Songwen Ju
- Central Laboratory, Nanjing Medica University Affiliated Suzhou HospitalSuzhou 215128, Jiangsu, China
| | - Youguo Chen
- Department of Obstetrics and Gynaecology, The First Affiliated Hospital of Soochow UniversitySuzhou 215006, Jiangsu, China
| | - Ting Chen
- Department of Obstetrics and Gynaecology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical UniversitySuzhou 215002, Jiangsu, China
| | - Jian Yang
- Department of Obstetrics and Gynaecology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical UniversitySuzhou 215002, Jiangsu, China
| | - Biaoquan Liang
- Department of Obstetrics and Gynaecology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical UniversitySuzhou 215002, Jiangsu, China
| | - Shunyu Hou
- Department of Obstetrics and Gynaecology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical UniversitySuzhou 215002, Jiangsu, China
| |
Collapse
|
6
|
Ma R, Xia W, Zhang R, Fan G, Sun L, Qiu L, Cui J, Ju S, Wu P, Yang J, Xiong J, Yu Q. Adjuvant-free cellulose nanofiber vaccine induces permanent humoral immune response in mouse. Nanotechnology 2022; 33:345103. [PMID: 35580558 DOI: 10.1088/1361-6528/ac705b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 01/07/2022] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
Vaccines have become one of the most effective strategies to deal with various infectious diseases and chronic noninfectious diseases, such as SARS virus, Novel Coronavirus, cancer, etc. However, recent studies have found that the neutralizing antibody titers induced by vaccines would drop to half level or even lower after vaccination. In this study, we designed a novel small-sized positively charged nanofiber-1 (PEI-CNF-1) as a vaccine carrier, which can induce a high long-term humoral immune response by controlled release of antigen. Further studies showed that PEI-CNF-1 could significantly induce the release of immune response factor IL-1βand bone marrow-derived cell (BMDC) maturation. Moreover, compare to other cellulose nanofibers (CNFs), PEI-CNF-1 combined antigen (ovalbumin, OVA) induced and maintained the highest and longest antibody titers after vaccination. Interestingly, the antibody titers have no significant difference between at 21 and 90 d. Mechanically, we found that PEI-NCF-1 not only could control the slow-release of antigen, but also could be more easily swallowed by macrophages and metabolized by the bodies, thus presenting antigen more effectively. In conclusion, we believe that PEI-CNF-1 have a very high application prospect in inducing long-term humoral immune response, so as to achieve efficient prevention effect to epidemic viruses.
Collapse
Affiliation(s)
- Ronglin Ma
- Department of Gastroenterology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou 215002, Jiangsu, People's Republic of China
- Institute of Medical Biotechnology, Suzhou Vocational Health College, Suzhou 215009, Jiangsu, People's Republic of China
| | - Wei Xia
- Department of Pathology, The Second Affiliated Hospital of Soochow University, Suzhou 215004, Jiangsu, People's Republic of China
| | - Rui Zhang
- Department of Pathology, The Second Affiliated Hospital of Soochow University, Suzhou 215004, Jiangsu, People's Republic of China
| | - Guojia Fan
- Center for Cytotoxicity Testing, Sanitation & Environment Technology Institute, Soochow University, Suzhou 215006, Jiangsu, People's Republic of China
| | - Libin Sun
- Department of Gastroenterology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou 215002, Jiangsu, People's Republic of China
| | - Lei Qiu
- Department of Gastroenterology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou 215002, Jiangsu, People's Republic of China
| | - Jinxin Cui
- Department of Gastroenterology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou 215002, Jiangsu, People's Republic of China
| | - Songwen Ju
- Department of Gastroenterology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou 215002, Jiangsu, People's Republic of China
| | - Pingping Wu
- Institute of Medical Biotechnology, Suzhou Vocational Health College, Suzhou 215009, Jiangsu, People's Republic of China
| | - Jie Yang
- Institute of Medical Biotechnology, Suzhou Vocational Health College, Suzhou 215009, Jiangsu, People's Republic of China
| | - Jian Xiong
- Institute of Medical Biotechnology, Suzhou Vocational Health College, Suzhou 215009, Jiangsu, People's Republic of China
| | - Qiang Yu
- Department of Gastroenterology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou 215002, Jiangsu, People's Republic of China
| |
Collapse
|
7
|
Zhou SY, Jiang XL, Ju S, Li XY, Chen B, Jiang JH, Guo DQ, Xu X, Dong ZH, Fu W. [Early outcomes of excimer laser atherectomy for below-the-knee lesions in patients with diabetic foot]. Zhonghua Wai Ke Za Zhi 2022; 60:599-605. [PMID: 35658349 DOI: 10.3760/cma.j.cn112139-20211116-00534] [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] [Indexed: 06/15/2023]
Abstract
Objective: To evaluate the clinical outcomes of excimer laser atherectomy (ELA) in the treatment of diabetic foot with below-the-knee(BTK) lesions. Methods: The clinical data of 11 patients with diabetic foot with BTK lesions who underwent ELA at Department of Vascular Surgery,Zhongshan Hospital of Fudan University and Department of Vascular and Wound Treatment Center,Jinshan Hospital of Fudan University from September 2019 to May 2021 were retrospectively analyzed.There were 10 males and 1 female,aged 70.5 years(range:41 to 83 years).There were 20 lesions in 12 limbs,including 19 chronic total occlusion.All of the limbs were classified as Rutherford class 5 and suffered ulceration.The surgical efficacy,complications and ankle brachial index(ABI) after operation were record. Results: All patients underwent the operation successfully,the technical success rate was 12/12.No distal embolization,flow-limiting dissection,perforation or bailout stenting was occurred.The follow-up period was 8.2 months(range:3 to 13 months).The ABI increased from 0.58(range:0.24 to 1.57) before operation to 0.88(range:0.68 to 1.05) after operation.At 3 months after the operation,1 limb (1/12) underwent endovascular operation again due to restenosis,ulcers were healed in 5 limbs(5/12),and no amputation (limb/toe),death or loss of follow-up patients.Six months after the operation,2 patients were lost to follow-up and 2 died,ulcers were healed in 6 limbs(6/8),1 limb (1/8) underwent toe amputation due to prolonged healing of ulcers of toe. Conclusion: ELA is feasible and effective in the treatment of DF with BTK lesions,providing a new option of debulking atherectomy in such a group of patients.
Collapse
Affiliation(s)
- S Y Zhou
- Department of Vascular and Wound Treatment Center,Jinshan Hospital of Fudan University,Zhongshan Multidisciplinary Center and Jinshan Operation Center for Diabetic Foot,Shanghai 200540,China
| | - X L Jiang
- Department of Vascular Surgery,Zhongshan Hospital of Fudan University,National Clinical Research Center for Interventional Medicine, Shanghai 200032, China
| | - S Ju
- Department of Vascular and Wound Treatment Center,Jinshan Hospital of Fudan University,Zhongshan Multidisciplinary Center and Jinshan Operation Center for Diabetic Foot,Shanghai 200540,China
| | - X Y Li
- Department of Vascular and Wound Treatment Center,Jinshan Hospital of Fudan University,Zhongshan Multidisciplinary Center and Jinshan Operation Center for Diabetic Foot,Shanghai 200540,China
| | - B Chen
- Department of Vascular Surgery,Zhongshan Hospital of Fudan University,National Clinical Research Center for Interventional Medicine, Shanghai 200032, China
| | - J H Jiang
- Department of Vascular Surgery,Zhongshan Hospital of Fudan University,National Clinical Research Center for Interventional Medicine, Shanghai 200032, China
| | - D Q Guo
- Department of Vascular Surgery,Zhongshan Hospital of Fudan University,National Clinical Research Center for Interventional Medicine, Shanghai 200032, China
| | - X Xu
- Department of Vascular Surgery,Zhongshan Hospital of Fudan University,National Clinical Research Center for Interventional Medicine, Shanghai 200032, China
| | - Z H Dong
- Department of Vascular Surgery,Zhongshan Hospital of Fudan University,National Clinical Research Center for Interventional Medicine, Shanghai 200032, China
| | - Weiguo Fu
- Department of Vascular Surgery,Zhongshan Hospital of Fudan University,National Clinical Research Center for Interventional Medicine, Shanghai 200032, China
| |
Collapse
|
8
|
Jiang XL, Ju S, Chen B, Jiang JH, Shi Y, Ma T, Lin CP, Guo DQ, Xu X, Dong ZH, Fu WG. [Debulking strategy of endovascular treatment for lower extremity artery lesions]. Zhonghua Wai Ke Za Zhi 2021; 59:969-974. [PMID: 34839610 DOI: 10.3760/cma.j.cn112139-20210901-00412] [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: 11/05/2022]
Abstract
Objective: To explore the debulking strategy of lower extremity artery lesions. Methods: Retrospectively analyzed the clinical data of 101 patients underwent debulking therapy at Department of Vascular Surgery,Zhongshan Hospital,Fudan University from June 2019 to June 2020.There were 74 males and 27 females,aged (73.2±11.7)years (range:35 to 93 years).There were 31 cases in Rutherford class 3,39 cases in class 4 and 31 cases in class 5. Hypertension occurred in 72 patients. One hundred and forty lesions were treated in 101 patients. Among them, there were 13 lesions(9.3%) in iliac artery,72 lesions(51.4%) in superficial femoral artery,41 (29.3%) lesions in popliteal artery,10 lesions(7.1%) in tibiofibular trunk,and 4 lesions(2.9%) in below the knee artery.Percutaneous mechanical thrombectomy (PMT) was mainly used in acute thrombosis,excimer laser ablation (ELA) was mainly used for chronic in-stent restenosis and chronic stenosis or totally occlusive lesions,while directional atherectomy (DA) was mainly used for short calcified lesions. Results: All of the patients underwent debulking therapy. Eighty-two lesions(58.6%,82/140) were treated by PMT, 56 (40.0%,56/140) were treated by ELA,and 2 (1.4%,2/140) were treated by DA.The ankle-brachial index of the patient was 0.44±0.19 before surgery, 0.87±0.17 immediately after surgery (t=-16.26, P<0.01), and 0.81±0.20 at 6 months after surgery(t=-14.67,P<0.01),and 0.79±0.15 (t=-14.12,P<0.01) at 12 months after surgery. At 12 months,the primary patency was 86.1% (87/101),mortality was 5.0% (5/101), freedom from major-amputation survival rate was 93.1% (94/101),and target lesion reintervention rate was 9.9% (10/101). Conclusions: Debulking is feasible and effective to eliminate the arterial contents and maximize the acquisition of lumen.Selection of suitable debulking methods for different segments and lesions would be helpful to improve the technical success and obtain satisfactory results.
Collapse
Affiliation(s)
- X L Jiang
- Department of Vascular Surgery,Zhongshan Hospital,Fudan University,Shanghai 200032,China
| | - S Ju
- Department of Vascular and Wound Treatment Center,Jinshan Hospital,Fudan University,Shanghai 200540,China
| | - B Chen
- Department of Vascular Surgery,Zhongshan Hospital,Fudan University,Shanghai 200032,China
| | - J H Jiang
- Department of Vascular Surgery,Zhongshan Hospital,Fudan University,Shanghai 200032,China
| | - Y Shi
- Department of Vascular Surgery,Zhongshan Hospital,Fudan University,Shanghai 200032,China
| | - T Ma
- Department of Vascular Surgery,Zhongshan Hospital,Fudan University,Shanghai 200032,China
| | - C P Lin
- Department of Vascular Surgery,Zhongshan Hospital,Fudan University,Shanghai 200032,China
| | - D Q Guo
- Department of Vascular Surgery,Zhongshan Hospital,Fudan University,Shanghai 200032,China
| | - X Xu
- Department of Vascular Surgery,Zhongshan Hospital,Fudan University,Shanghai 200032,China
| | - Z H Dong
- Department of Vascular Surgery,Zhongshan Hospital,Fudan University,Shanghai 200032,China
| | - W G Fu
- Department of Vascular Surgery,Zhongshan Hospital,Fudan University,Shanghai 200032,China
| |
Collapse
|
9
|
Ju S, Hudson M, Colmegna I, Bernatsky S, LI Y. OP0018 PREDICTING RESPONSES TO ANTI-TNF TREATMENTS IN RHEUMATOID ARTHRITIS PATIENTS FROM GENETIC AND CLINICAL DATA USING A MACHINE LEARNING APPROACH. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.1107] [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: 11/04/2022]
Abstract
Background:Tumor necrosis factor (TNF) inhibitors are key therapies in rheumatoid arthritis (RA). However, a third of patients fail to respond to these agents, and there are no reliable predictors for response. Predictive models, potentially based on clinical and genomic data, are vital to personalizing therapy. The Dialogue for Reverse Engineering Assessments and Methods (DREAM) RA Responder Challenge invited research teams to create models for patient response to anti-TNF therapy. The winning model relied heavily on limited genetic input and was unable to correctly predict responses in a large number of individuals.Objectives:We compared non-linear and linear analytic methods to predict response and non-response to anti-TNF treatment for RA patients in the DREAM database, using moth clinical variables and a large number of potential genome-wide predictors.Methods:DREAM data on anti-TNF treated RA patients were accessed through Synapse (synapse.sagebase.org). Analogously to the DREAM challenge, we were provided with the clinical and genomic data of 2706 patients with at least moderate disease activity according to their composite disease activity scores for 28 joints (DAS28). In contrast to the previous analysis that focused on single nucleotide polymorphisms (SNPs) based on existing knowledge of RA, we used the full genome-wide dataset of 2.5 million SNPs. We first reduced this to 284 SNPs by considering the marginal p-value of 0.001 for each SNP based on whether or not it predicted response. Then, we removed SNPs with borderline significant p-values if they were in linkage disequilibrium with the most significant SNPs. Instead of predicting a binary outcome of responder or non-responder, we trained both linear (e.g. least absolute shrinkage and selection operator, or LASSO) and non-linear models (e.g. Random Forest) to predict a continuous outcome, the change in DAS28 from baseline to 3-12 months after initiation of anti-TNF therapy. We split the patients into training (N=2031) and testing (N=675) subsets and used the predicted response scores to evaluate the true binary response labels for the test patients.Results:The best performing method was Random Forest (RF), a non-linear model that uses decision trees to progressively separate subjects into groups based on the most predictive features. Support Vector Regression (SVR) also out-performed linear methods. Compared to only clinical covariates such as age and sex, adding SNPs improved the prediction from an area under the receiver operating curve (AUROC) of 0.63 to 0.67, i.e., 0.04 improvement. This AUROC of 0.67 was 0.046 greater than the DREAM challenge winner.Conclusion:Non-linear methods such as RF and SVR gave larger predictive improvements compared to linear methods. This may imply some interaction between SNPs and clinical covariatesas potential predictors of response to anti-TNF therapy in RA. We are further investigating these 284 SNPs and their interactions in this regard.References:[1]Guan, Y., Zhang, H., Quang, D., Wang, Z., Parker, S., Pappas, D. A., Kremer, J. M., & Zhu, F. (2019). Machine Learning to Predict Anti-Tumor Necrosis Factor Drug Responses of Rheumatoid Arthritis Patients by Integrating Clinical and Genetic Markers. Arthritis & rheumatology (Hoboken, N.J.), 71(12), 1987–1996. https://doi.org/10.1002/art.41056[2]Sieberts, S. K., Zhu, F., García-García, J., Stahl, E., Pratap, A., Pandey, G., Pappas, D., Aguilar, D., Anton, B., Bonet, J., Eksi, R., Fornés, O., Guney, E., Li, H., Marín, M. A., Panwar, B., Planas-Iglesias, J., Poglayen, D., Cui, J., Falcao, A. O., … Mangravite, L. M. (2016). Crowdsourced assessment of common genetic contribution to predicting anti-TNF treatment response in rheumatoid arthritis. Nature communications, 7, 12460. https://doi.org/10.1038/ncomms12460Figure.Disclosure of Interests:None declared
Collapse
|
10
|
Jiang XL, Ju S, Chen B, Jiang JH, Shi Y, Ma T, Lin CP, Guo DQ, Xu X, Dong ZH, Fu WG. [Application and value of excimer laser ablation in the treatment of lower limb atherosclerotic obliterans]. Zhonghua Yi Xue Za Zhi 2021; 101:1026-1030. [PMID: 33845542 DOI: 10.3760/cma.j.cn112137-20200916-02654] [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: 11/05/2022]
Abstract
Objective: To evaluate the results of excimer laser ablation (ELA) in the treatment of lower limb atherosclerotic obliterans (ASO). Methods: From June 2019 to March 2020, patients who underwent ELA combined with drug-coated balloon (DCB) for lower limb atherosclerotic obliterans (ASO) were enrolled. Demographics, lesion characteristics, procedure-related outcomes and complications were collected and analyzed. Results: Thirty patients were enrolled, including 21 males and 9 females. The mean age was (76.5±10.5) years. The mean lesion length was (11.7±6.4) cm. A total of 41 lesions, including in-stent restenosis (ISR) in 12 (29.3%), chronic totally occlusion (CTO) at initial treatment in 24 (58.5%), and severe stenosis in 5 (12.2%) patients. Sixteen (51.6%) patients were classified as Peripheral Arterial Calcium Scoring System (PACSS) category 4. The technical success rate was 93.5%. Incidence of distal embolization and bailout stenting was 12.9% and 6.5%, respectively. The mean follow-up time was (6.6±3.0) months. Ankle-brachial index (ABI) was significantly increased from 0.43(0.32,0.55) preoperatively to 0.91(0.87,1.01) postoperatively (Z=-5.43, P<0.01) and 0.82(0.73,1.02) (Z=-3.99, P<0.01) three months after surgery. The 3-month major-amputation free survival rate was 96.7%, primary patency rate was 100%, the target lesion reintervention (TLR) rate was 0 and ulcer healing rate was 76.9%. Conclusion: Debulking of ELA is feasible and effective for both ISR and CTO at initial treatment, providing a new option for DCB preparation and reducing stent implantation.
Collapse
Affiliation(s)
- X L Jiang
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University,Shanghai 200032, China
| | - S Ju
- Department of Vascular and Wound Treatment Center, Jinshan Hospital, Fudan University, Shanghai 200540, China
| | - B Chen
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University,Shanghai 200032, China
| | - J H Jiang
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University,Shanghai 200032, China
| | - Y Shi
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University,Shanghai 200032, China
| | - T Ma
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University,Shanghai 200032, China
| | - C P Lin
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University,Shanghai 200032, China
| | - D Q Guo
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University,Shanghai 200032, China
| | - X Xu
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University,Shanghai 200032, China
| | - Z H Dong
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University,Shanghai 200032, China
| | - W G Fu
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University,Shanghai 200032, China
| |
Collapse
|
11
|
Chu S, Sun R, Gu X, Chen L, Liu M, Guo H, Ju S, Vatsalya V, Feng W, McClain CJ, Deng Z. Inhibition of Sphingosine-1-Phosphate-Induced Th17 Cells Ameliorates Alcohol-Associated Steatohepatitis in Mice. Hepatology 2021; 73:952-967. [PMID: 32418220 PMCID: PMC8009334 DOI: 10.1002/hep.31321] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [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: 01/04/2020] [Revised: 03/22/2020] [Accepted: 04/16/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND AND AIMS Chronic alcohol consumption is accompanied by intestinal inflammation. However, little is known about how alterations to the intestinal immune system and sphingolipids contribute to the pathogenesis of alcohol-associated liver disease (ALD). APPROACH AND RESULTS We used wild-type mice, retinoid-related orphan receptor gamma t (RORγt)-deficient mice, sphingosine kinase-deficient mice, and local gut anti-inflammatory, 5-aminosalicyclic acid-treated mice in a chronic-binge ethanol feeding model. Targeted lipidomics assessed the sphingolipids in gut and liver samples. Gut immune cell populations, the amounts of sphingolipids, and the level of liver injury were examined. Alcohol intake induces a pro-inflammatory shift in immune cell populations in the gut, including an increase in Th17 cells. Using RORγt-deficient mice, we found that Th17 cells are required for alcohol-associated gut inflammation and the development of ALD. Treatment with 5-aminosalicyclic acid decreases alcohol-induced liver injury and reverses gut inflammation by the suppression of CD4+ /RORγt+ /interleukin-17A+ cells. Increased Th17 cells were due to up-regulation of sphingosine kinase 1 activity and RORγt activation. We found that S1P/S1PR1 signaling is required for the development of Th17 cell-mediated ALD. Importantly, in vivo intervention blocking of S1P/S1PR1 signaling markedly attenuated alcohol-induced liver inflammation, steatosis, and damage. CONCLUSIONS Gut inflammation is a functional alteration of immune cells in ALD. Reducing gut Th17 cells leads to reduced liver damage. S1P signaling was crucial in the pathogenesis of ALD in a Th17 cell-dependent manner. Furthermore, our findings suggest that compounds that reduce gut inflammation locally may represent a unique targeted approach in the treatment of ALD.
Collapse
Affiliation(s)
- Shenghui Chu
- Department of MedicineUniversity of LouisvilleLouisvilleKY.,School of Pharmaceutical ScienceWenzhou Medical UniversityWenzhouChina
| | - Rui Sun
- James Graham Brown Cancer CenterUniversity of LouisvilleLouisvilleKY
| | - Xuemei Gu
- James Graham Brown Cancer CenterUniversity of LouisvilleLouisvilleKY
| | - Liang Chen
- James Graham Brown Cancer CenterUniversity of LouisvilleLouisvilleKY
| | - Min Liu
- Department of MedicineUniversity of LouisvilleLouisvilleKY.,School of Pharmaceutical ScienceWenzhou Medical UniversityWenzhouChina
| | - HaiXun Guo
- Department of RadiologyUniversity of LouisvilleLouisvilleKY
| | - Songwen Ju
- Central LaboratoryThe Affiliated Suzhou Hospital of Nanjing Medical UniversitySuzhou Municipal HospitalSuzhouChina
| | - Vatsalya Vatsalya
- Department of MedicineUniversity of LouisvilleLouisvilleKY.,Alcohol Research CenterUniversity of LouisvilleLouisvilleKY.,Hepatobiology & Toxicology CenterUniversity of LouisvilleLouisvilleKY
| | - Wenke Feng
- Department of MedicineUniversity of LouisvilleLouisvilleKY.,Alcohol Research CenterUniversity of LouisvilleLouisvilleKY.,Hepatobiology & Toxicology CenterUniversity of LouisvilleLouisvilleKY
| | - Craig J McClain
- Department of MedicineUniversity of LouisvilleLouisvilleKY.,Alcohol Research CenterUniversity of LouisvilleLouisvilleKY.,Hepatobiology & Toxicology CenterUniversity of LouisvilleLouisvilleKY.,Robley Rex VA Medical CenterLouisvilleKY.,Department of Pharmacology & ToxicologyUniversity of LouisvilleLouisvilleKY
| | - Zhongbin Deng
- Department of MedicineUniversity of LouisvilleLouisvilleKY.,James Graham Brown Cancer CenterUniversity of LouisvilleLouisvilleKY.,Alcohol Research CenterUniversity of LouisvilleLouisvilleKY.,Hepatobiology & Toxicology CenterUniversity of LouisvilleLouisvilleKY.,Department of SurgeryUniversity of LouisvilleLouisvilleKY
| |
Collapse
|
12
|
Ju S, Wang F, Wang Y, Ju S. CSN8 is a key regulator in hypoxia-induced epithelial-mesenchymal transition and dormancy of colorectal cancer cells. Mol Cancer 2020; 19:168. [PMID: 33261601 PMCID: PMC7708218 DOI: 10.1186/s12943-020-01285-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [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: 08/20/2020] [Accepted: 11/20/2020] [Indexed: 02/05/2023] Open
Abstract
Hypoxic stress plays a pivotal role in cancer progression; however, how hypoxia drives tumors to become more aggressive or metastatic and adaptive to adverse environmental stress is still poorly understood. In this study, we revealed that CSN8 might be a key regulatory switch controlling hypoxia-induced malignant tumor progression. We demonstrated that the expression of CSN8 increased significantly in colorectal cancerous tissues, which was correlated with lymph node metastasis and predicted poor patient survival. CSN8 overexpression induces the epithelial-mesenchymal transition (EMT) process in colorectal cancer cells, increasing migration and invasion. CSN8 overexpression arrested cell proliferation, upregulated key dormancy marker (NR2F1, DEC2, p27) and hypoxia response genes (HIF-1α, GLUT1), and dramatically enhanced survival under hypoxia, serum deprivation, or chemo-drug 5-fluorouracil treatment conditions. In particular, silenced CSN8 blocks the EMT and dormancy processes induced by the hypoxia of 1% O2 in vitro and undermines the adaptive capacity of colorectal cancer cells in vivo. The further study showed that CSN8 regulated EMT and dormancy partly by activating the HIF-1α signaling pathway, which increased HIF-1α mRNA expression by activating NF-κB and stabilized the HIF-1α protein via HIF-1α de-ubiquitination. Taken together, CSN8 endows primary colorectal cancer cells with highly aggressive/metastatic and adaptive capacities through regulating both EMT and dormancy induced by hypoxia. CSN8 could serve as a novel prognostic biomarker for colorectal cancer and would be an ideal target of disseminated dormant cell elimination and tumor metastasis, recurrence, and chemoresistance prevention.
Collapse
Affiliation(s)
- Songwen Ju
- Central Laboratory, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, 215002, Jiangsu Province, China.
| | - Feng Wang
- Department of Pathology, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, 215002, Jiangsu Province, China
| | - Yirong Wang
- Central Laboratory, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, 215002, Jiangsu Province, China
| | - Songguang Ju
- Department of Immunology, School of Biology and Basic Medical Sciences, Medical College, Soochow University, Suzhou, 215123, Jiangsu Province, China. .,Medical Biotechnology Institute, Soochow University, Suzhou, 215123, Jiangsu Province, China. .,Collaborative Innovation Center of Clinical Immunology between Soochow University and Sihong People's Hospital, Soochow University, Suzhou, 215123, Jiangsu Province, China.
| |
Collapse
|
13
|
Luo H, Liu S, Wang Y, Mortimer K, Ju S, Yang Y, Wang D. Disease progression in patients with COVID-19: a retrospective cohort study in China. Int J Tuberc Lung Dis 2020; 24:1032-1037. [PMID: 33126935 DOI: 10.5588/ijtld.20.0386] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVE: To evaluate the clinical features of disease progression among patients with COVID-19 to help early identification of patients at high risk.DESIGN: This was a retrospective, multi-centre cohort study. From 10 January to 29 February 2020, all cases diagnosed with COVID-19 at 24 hospitals (with complete medical records) in Jiangsu Province, China were recruited. The primary outcome was deterioration in condition, i.e., the dramatic progression from asymptomatic or mild or moderate status into severe or critically ill status during 14 days´ follow-up.RESULTS: Of the 625 patients in Jiangsu, none died; 597 patients were asymptomatic or had mild or moderate disease on admission, of whom 36 (6%) experienced disease deterioration to become severe or critically ill.CONCLUSION: Disease deterioration to severe or critically ill status was associated with age, pulmonary opacity score, lymphocyte count on admission and exposure to the pandemic centre in Wuhan.
Collapse
Affiliation(s)
- H Luo
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - S Liu
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine
| | - Y Wang
- Department of Radiology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China
| | - K Mortimer
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - S Ju
- Department of Radiology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Y Yang
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine
| | - D Wang
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| |
Collapse
|
14
|
Gao B, Zhong M, Shen Q, Wu Y, Cao M, Ju S, Chen L. Gut microbiota in early pregnancy among women with Hyperglycaemia vs. Normal blood glucose. BMC Pregnancy Childbirth 2020; 20:284. [PMID: 32393255 PMCID: PMC7216510 DOI: 10.1186/s12884-020-02961-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [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: 11/18/2018] [Accepted: 04/21/2020] [Indexed: 02/07/2023] Open
Abstract
Background Recent studies suggest that there is a link between the gut microbiota and glucose metabolism. This study aimed to compare the gut microbiota during early pregnancy of women with hyperglycymia to those with normal blood glucose. Methods Gut microbial composition was analysed in 22 women with hyperglycaemia and 28 age-matched healthy controls during their first prenatal visits (< 20 weeks) using high throughput sequencing of the V3-V4 region of the 16S ribosomal RNA gene. Hyperglycemia was diagnosed based on the criteria recommended by the International Association of Diabetes and Pregnancy Study Groups in 2010. Results Women with hyperglycemia in pregnancy (HIP) had significantly lower microbial richness and diversity compared with healthy pregnant women. The proportions of the Firmicutes and Bacteroidetes phyla and the ratio of Firmicutes:Bacteroidetes were not different between the two groups. We observed that individuals with HIP had an increased abundance of Nocardiaceae, Fusobacteriaceae, etc., whereas healthy controls had significantly higher levels of Christensenellaceae, Clostridiales_vadinBB60_group, Coriobacteriaceae, etc. Similarly, levels of the members of the Ruminococcaceae family, including Ruminococcaceae_UCG-014, Ruminococcaceae_UCG-003, and Ruminococcaceae_UCG-002, were significantly reduced in the HIP group and were negatively correlated with HbA1c. HbA1c levels were positively correlated with Bacteroidaceae and Enterobacteriaceae and negatively correlated with Christensenellaceae, etc. CRP was positively correlated with the Bacteroidaceae and Fusobacteriaceae families and the Fusobacterium genus. Conclusions Our study revealed that individuals with HIP have gut microbial dysbiosis and that certain bacterial groups are associated with glucose metabolism during pregnancy. Further study is needed to provide new ideas to control glucose by modifying the gut microbiota.
Collapse
Affiliation(s)
- Beibei Gao
- Department of Endocrinology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, 215000, China
| | - Mengdan Zhong
- Department of Endocrinology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, 215000, China
| | - Qiong Shen
- Department of Endocrinology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, 215000, China
| | - Ying Wu
- Department of Endocrinology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, 215000, China
| | - Mengdie Cao
- Department of Endocrinology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, 215000, China
| | - Songwen Ju
- Central Laboratory, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, 215000, China
| | - Lei Chen
- Department of Endocrinology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, 215000, China.
| |
Collapse
|
15
|
Weinrib R, Browne EN, Shapley-Quinn MK, van der Straten A, Beksinska M, Mgodi N, Musara P, Mphili N, Schwartz JL, Ju S, Hanif H, Montgomery ET. Perspectives from Young South African and Zimbabwean Women on Attributes of Four (Placebo) Vaginal Microbicide Delivery Forms. AIDS Behav 2020; 24:637-647. [PMID: 31254190 PMCID: PMC6988116 DOI: 10.1007/s10461-019-02576-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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] [Indexed: 12/13/2022]
Abstract
Introduction Incorporating end-user input into the design of new vaginal microbicides for women is key to optimizing their uptake, consistent use, and, ultimately, success in combatting the heterosexual HIV epidemic. Methods The Quatro Study assessed four placebo forms of vaginally inserted HIV-microbicides among young microbicide-naïve African women: on-demand film, insert and gel, and monthly ring. Participants randomly used each product for 1 month and provided product satisfaction ratings (1–5 scale), and opinions on product attributes and potential alternative designs. Qualitative data were collected through focus group discussions at study exit. Multivariable associations between attribute opinions and overall product rating were examined using Poisson regression models with robust standard errors to assess the attributes most influential to satisfaction. Results Overall opinions of products and their individual attributes were generally positive; all products were rated either 4 or a 5 by ≥ 50% of participants. Attributes related to ease of use and interference with normal activities were the most salient predictors of satisfaction. Preferences for duration of use tended toward relatively shorter use periods for the ring (i.e., 1–3 months vs. 12 months) and for coitally independent dosing for the on-demand products. Conclusions How well a product fit in with participants’ lifestyles was important to their overall satisfaction. For on-demand products, greater flexibility around timing of use was desired, to avoid coital dependency of the dosing. Electronic supplementary material The online version of this article (10.1007/s10461-019-02576-8) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- R Weinrib
- Women's Global Health Imperative, RTI International, San Francisco, CA, USA.
- RTI Health Solutions, RTI International, Barcelona, Spain.
| | - E N Browne
- Women's Global Health Imperative, RTI International, San Francisco, CA, USA
| | - M K Shapley-Quinn
- Women's Global Health Imperative, RTI International, San Francisco, CA, USA
| | - A van der Straten
- Women's Global Health Imperative, RTI International, San Francisco, CA, USA
- Department of Medicine, Center for AIDS Prevention Studies, University of San Francisco, San Francisco, CA, USA
| | - M Beksinska
- MatCH Research Unit, Department of Obstetrics and Gynaecology, School of Clinical Sciences, University of the Witwatersrand, Durban, South Africa
| | - N Mgodi
- University of Zimbabwe College of Health Sciences-Clinical Trials Research Centre, Harare, Zimbabwe
| | - P Musara
- University of Zimbabwe College of Health Sciences-Clinical Trials Research Centre, Harare, Zimbabwe
| | - N Mphili
- MatCH Research Unit, Department of Obstetrics and Gynaecology, School of Clinical Sciences, University of the Witwatersrand, Durban, South Africa
| | - J L Schwartz
- Eastern Virginia Medical School, CONRAD, Arlington, VA, USA
| | - S Ju
- Eastern Virginia Medical School, CONRAD, Arlington, VA, USA
| | - H Hanif
- Eastern Virginia Medical School, CONRAD, Arlington, VA, USA
| | - E T Montgomery
- Women's Global Health Imperative, RTI International, San Francisco, CA, USA
| |
Collapse
|
16
|
Ge Y, Chen W, Zhang X, Wang H, Cui J, Liu Y, Ju S, Tian X, Ju S. Nuclear-localized costimulatory molecule 4-1BBL promotes colon cancer cell proliferation and migration by regulating nuclear Gsk3β, and is linked to the poor outcomes associated with colon cancer. Cell Cycle 2020; 19:577-591. [PMID: 31992123 DOI: 10.1080/15384101.2020.1719308] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 01/27/2023] Open
Abstract
Anti-tumor immune response and the prognosis of tumor are the results of competition between stimulatory and inhibitory checkpoints. Except for upregulating inhibitory checkpoints, lowering some immune accelerating molecules to convert an immunostimulatory microenvironment into an immunodormant one through "decelerating the accelerator" might be another effective immune escape pattern. 4-1BBL is a classical transmembrane costimulatory molecule involving in antitumor immune responses. In contrast, we demonstrated that 4-1BBL is predominantly localized in the nuclei of cancer cells in colon cancer specimens and is positively correlated with tumor size, lymph node metastasis, and a lower survival ratio. Furthermore, the nuclear localization of 4-1BBL was also ascertained in vitro. 4-1BBL knockout (KO) arrests the proliferation and impaired the migration and invasion ability of colon cancer cells in vitro and retarded tumor growth in vivo. 4-1BBL KO increased the accumulation of Gsk3β in the nuclei of colon cancer cells and consequently decreased the expression of Wnt pathway target genes and thus alter tumor biological behavior. We hypothesized that unlike membrane-expressed 4-1BBL, which stimulates the 4-1BB signaling of antitumor cytotoxic T cells, the nuclear-localized 4-1BBL could facilitate the malignant behavior of colon cancer cells by circumventing antitumor signaling and driving some key oncotropic signal pathway in the nucleus. Nuclear-localized 4-1BBL might be an indicator of colon cancer malignancy and serve as a promising target of immunotherapy.
Collapse
Affiliation(s)
- Yan Ge
- Department of Immunology, School of Biology and Basic Medical Sciences, Medical College, Soochow University, Suzhou, Jiangsu Province, China
| | - Wei Chen
- Department of General Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Xueguang Zhang
- Department of Immunology, School of Biology and Basic Medical Sciences, Medical College, Soochow University, Suzhou, Jiangsu Province, China
| | - Haiyan Wang
- Department of Immunology, School of Biology and Basic Medical Sciences, Medical College, Soochow University, Suzhou, Jiangsu Province, China
| | - Juanjuan Cui
- Department of Immunology, School of Biology and Basic Medical Sciences, Medical College, Soochow University, Suzhou, Jiangsu Province, China
| | - Yue Liu
- Department of Immunology, School of Biology and Basic Medical Sciences, Medical College, Soochow University, Suzhou, Jiangsu Province, China
| | - Songwen Ju
- Central Laboratory, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, Jiangsu Province, China
| | - Xinxin Tian
- Department of Immunology, School of Biology and Basic Medical Sciences, Medical College, Soochow University, Suzhou, Jiangsu Province, China.,Departmemt of Medical Care for Cadres, Nanjing Municipal Government Hospital, Nanjing, Jiangsu Province, China
| | - Songguang Ju
- Department of Immunology, School of Biology and Basic Medical Sciences, Medical College, Soochow University, Suzhou, Jiangsu Province, China
| |
Collapse
|
17
|
Xie M, Ma T, Xue J, Ma H, Sun M, Zhang Z, Liu M, Liu Y, Ju S, Wang Z, De W. The long intergenic non-protein coding RNA 707 promotes proliferation and metastasis of gastric cancer by interacting with mRNA stabilizing protein HuR. Cancer Lett 2019; 443:67-79. [DOI: 10.1016/j.canlet.2018.11.032] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 11/12/2018] [Accepted: 11/14/2018] [Indexed: 02/09/2023]
|
18
|
Liao Y, Lin D, Cui P, Abbasi B, Chen C, Zhang Z, Zhang Y, Dong Y, Rui R, Ju S. Polo-like kinase 1 inhibition results in misaligned chromosomes and aberrant spindles in porcine oocytes during the first meiotic division. Reprod Domest Anim 2018; 53:256-265. [PMID: 29143380 DOI: 10.1111/rda.13102] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [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: 07/09/2017] [Accepted: 09/26/2017] [Indexed: 01/15/2023]
Abstract
Polo-like kinase 1 (Plk1), a type of serine/threonine protein kinase, has been implicated in various functions in the regulation of mitotic processes. However, these kinase's roles in meiotic division are not fully understood, particularly in the meiotic maturation of porcine oocytes. In this study, the expression and spatiotemporal localization of Plk1 were initially assessed in the meiotic process of pig oocytes by utilizing Western blotting with immunofluorescent staining combined with confocal microscopy imaging technique. The results showed that Plk1 was expressed and exhibited a dynamic subcellular localization throughout the meiotic process. After germinal vesicle breakdown (GVBD), Plk1 was detected prominently around the condensed chromosomes and subsequently exhibited a similar subcellular localization to α-tubulin throughout subsequent meiotic phases, with particular enrichment being observed near spindle poles at MI and MII. Inhibition of Plk1 via a highly selective inhibitor, GSK461364, led to the failure of first polar body extrusion in porcine oocytes, with the majority of the treated oocytes being arrested in GVBD. Further subcellular structure examination results indicated that Plk1 inhibition caused the great majority of oocytes with spindle abnormalities and chromosome misalignment during the first meiotic division. The results of this study illustrate that Plk1 is critical for the first meiotic division in porcine oocytes through its influence on spindle organization and chromosome alignment, which further affects the ensuing meiotic cell cycle progression.
Collapse
Affiliation(s)
- Y Liao
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - D Lin
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - P Cui
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - B Abbasi
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - C Chen
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Z Zhang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Y Zhang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Y Dong
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - R Rui
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - S Ju
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| |
Collapse
|
19
|
Ju S, Ge Y, Li P, Tian X, Wang H, Zheng X, Ju S. Dietary quercetin ameliorates experimental colitis in mouse by remodeling the function of colonic macrophages via a heme oxygenase-1-dependent pathway. Cell Cycle 2018; 17:53-63. [PMID: 28976231 DOI: 10.1080/15384101.2017.1387701] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [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: 12/22/2022] Open
Abstract
Inflammatory bowel disease (IBD) results from a chronic intestinal inflammation and tissue destruction via an aberrant immune-driven inflammatory response towards an altered gut microbiota. Dietary intervention is becoming an attractive avenue for the therapy of colitis because diet is a key determinant of the mucosal immune response. Quercetin (QCN) is the most common in nature and the major representative of dietary antioxidant flavonoids, which has been demonstrated to influence the progression of colitis. However, the underlying mechanism of QCN on intestinal immunomodulation remains unclear. Here, our study demonstrated dietary QCN could ameliorate experimental colitis in part by modulating the anti-inflammatory effects and bactericidal capacity of macrophages via Heme oxygenase-1 (Hmox1, HO-1) dependent pathway. It suggested that QCN might restore the proper intestinal host-microbe relationship to ameliorate the colitis via rebalancing the pro-inflammatory, anti-inflammatory and bactericidal function of enteric macrophages. Hence, modulating the function of intestinal macrophages with dietary administration of QCN to restore the immunological hemostasis and rebalance the enteric commensal flora is a potential and promising strategy for IBD therapy.
Collapse
Affiliation(s)
- Songwen Ju
- a Central Laboratory , Affiliated Suzhou Hospital of Nanjing Medical University , Suzhou Municipal Hospital , Suzhou , Jiangsu Province , China.,c Suzhou Digestive Diseases and Nutrition Research Center , Affiliated Suzhou Hospital of Nanjing Medical University , Suzhou Municipal Hospital , Suzhou , Jiangsu Province , China
| | - Yan Ge
- b Department of Immunology , School of Biology and Basic Medical Sciences , Medical College , Soochow University , Suzhou , Jiangsu Province , China
| | - Ping Li
- c Suzhou Digestive Diseases and Nutrition Research Center , Affiliated Suzhou Hospital of Nanjing Medical University , Suzhou Municipal Hospital , Suzhou , Jiangsu Province , China
| | - Xinxin Tian
- d Nanjing Municipal Government Hospital , Nanjing , Jiangsu Province , China
| | - Haiyan Wang
- b Department of Immunology , School of Biology and Basic Medical Sciences , Medical College , Soochow University , Suzhou , Jiangsu Province , China
| | - Xiaocui Zheng
- b Department of Immunology , School of Biology and Basic Medical Sciences , Medical College , Soochow University , Suzhou , Jiangsu Province , China
| | - Songguang Ju
- b Department of Immunology , School of Biology and Basic Medical Sciences , Medical College , Soochow University , Suzhou , Jiangsu Province , China
| |
Collapse
|
20
|
Wang B, Xu T, Huang L, Hua Y, Cai Y, Ma Y, Wang K, Krum H, Scammells P, Ju S. Novel Anti-Inflammatory Agent VCP979 Treatment Improves Cardiac Function in Post-Myocardial Infarction Diabetes Mice. Heart Lung Circ 2018. [DOI: 10.1016/j.hlc.2018.06.163] [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: 12/01/2022]
|
21
|
Lee S, Yoon S, Ju S, Yoo J, Jeong Y, Lee J. Quantitative severity of lobar emphysema is not associated with location of lung cancer in patients with surgically resected non-small cell lung cancer. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx669.006] [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: 11/13/2022] Open
|
22
|
Ye X, Ju S, Duan H, Yao Y, Wu J, Zhong S, Chen L, Cao S, Xu Y, Zheng X, Wang H, Ge Y, Ju S. Immune checkpoint molecule PD-1 acts as a novel biomarker for the pathological process of gestational diabetes mellitus. Biomark Med 2017; 11:741-749. [PMID: 28891298 DOI: 10.2217/bmm-2017-0078] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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: 12/16/2022] Open
Abstract
AIM Accumulating evidence suggested that challenge of the maternal-fetal interaction during pregnancy might cause the impairment of immunological hemostasis and lead to gestational diabetes mellitus (GDM) pathological process. Immune checkpoint molecule PD-1 is one of the critical molecule balancing immune response and immunological tolerance. METHODS PD-1 expressions on T-cell subsets of GDM patients and control groups were measured via flow cytometric analysis and followed up. RESULTS Downregulation of PD-1 acted as an indicator for GDM occurrence in the third trimester of pregnancy. With the recovery of GDM, PD-1 expression restored to normal level. CONCLUSION PD-1 expression on T-cell subsets is a novel biomarker for the occurrence and recovery of GDM.
Collapse
Affiliation(s)
- Xiaoying Ye
- Department of Immunology, School of Biology & Basic Medical Sciences, Medical College, Soochow University, Suzhou, China.,Clinical Laboratory of Kunshan First People's Hospital Affiliated to Jiangsu University, Suzhou, China
| | - Songwen Ju
- Suzhou Digestive Diseases & Nutrition Research Center, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - Houquan Duan
- Department of Immunology, School of Biology & Basic Medical Sciences, Medical College, Soochow University, Suzhou, China.,Clinical Laboratory of Kunshan First People's Hospital Affiliated to Jiangsu University, Suzhou, China
| | - Yongliang Yao
- Clinical Laboratory of Kunshan First People's Hospital Affiliated to Jiangsu University, Suzhou, China
| | - Jianfen Wu
- Department of Gynaecology & Obstetrics of Kunshan First People's Hospital Affiliated to Jiangsu University, Suzhou, China
| | - Shao Zhong
- Department of Endocrinology of Kunshan First People's Hospital Affiliated to Jiangsu University, Suzhou, China
| | - Lei Chen
- Department of Endocrinology, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - ShaSha Cao
- Department of Immunology, School of Biology & Basic Medical Sciences, Medical College, Soochow University, Suzhou, China
| | - Yongfang Xu
- Department of Immunology, School of Biology & Basic Medical Sciences, Medical College, Soochow University, Suzhou, China
| | - Xiaocui Zheng
- Department of Immunology, School of Biology & Basic Medical Sciences, Medical College, Soochow University, Suzhou, China
| | - Haiyan Wang
- Department of Immunology, School of Biology & Basic Medical Sciences, Medical College, Soochow University, Suzhou, China
| | - Yan Ge
- Department of Immunology, School of Biology & Basic Medical Sciences, Medical College, Soochow University, Suzhou, China
| | - Songguang Ju
- Department of Immunology, School of Biology & Basic Medical Sciences, Medical College, Soochow University, Suzhou, China
| |
Collapse
|
23
|
Wang B, Xu T, Cai Y, Ma Y, Huang L, Min S, Vinh N, Wang K, Scammells P, Ju S. VCP979, A Novel p38 MAPK Inhibitor, Attenuates Inflammatory Response and Improve Cardiac Function Post-Myocardial Infarction. Heart Lung Circ 2017. [DOI: 10.1016/j.hlc.2017.06.253] [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: 10/19/2022]
|
24
|
Deng ZB, Zhuang X, Ju S, Xiang X, Mu J, Liu Y, Jiang H, Zhang L, Mobley J, McClain C, Feng W, Grizzle W, Yan J, Miller D, Kronenberg M, Zhang HG. Correction: Exosome-like Nanoparticles from Intestinal Mucosal Cells Carry Prostaglandin E2 and Suppress Activation of Liver NKT Cells. J Immunol 2016; 196:4832. [PMID: 27207807 DOI: 10.4049/jimmunol.1600479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
25
|
Ye Y, Pang Z, Chen W, Ju S, Zhou C. The epidemiology and risk factors of inflammatory bowel disease. Int J Clin Exp Med 2015; 8:22529-22542. [PMID: 26885239 PMCID: PMC4730025] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Accepted: 11/23/2015] [Indexed: 06/05/2023]
Abstract
This review aimed to summarize the epidemiology (incidence, prevalence and morality) and risk factors of inflammatory bowel disease (IBD). IBD is a chronic, relapsing, inflammatory disorder of the gastrointestinal tract and includes Crohn's Disease (CD) and ulcerative colitis (UC). IBD has increasing incidence and prevalence in most of countries and becomes a global emerging disease. A westernized lifestyle or habits and some environmental factors have been found to contribute to the pathogenesis of IBD. The relevant risk factors include Smoking, hygiene hypothesis, microorganisms, appendectomy, medication, nutrition, and stress have all been found to be associated with the modality of IBD, but results are inconsistent on this issue in available studies. Therefore, more studies are required to identify and understand the environmental determinants of IBD.
Collapse
Affiliation(s)
- Yulan Ye
- Department of Gastroenterology, The Affiliated Suzhou Hospital of Nanjing Medical UniversitySuzhou 215006, Jiangsu, China
| | - Zhi Pang
- Department of Gastroenterology, The Affiliated Suzhou Hospital of Nanjing Medical UniversitySuzhou 215006, Jiangsu, China
| | - Weichang Chen
- Department of Gastroenterology, The First Affiliated Hospital of College of Medicine, Soochow UniversitySuzhou 215000, Jiangsu, China
| | - Songwen Ju
- Department of Gastroenterology, The Affiliated Suzhou Hospital of Nanjing Medical UniversitySuzhou 215006, Jiangsu, China
| | - Chunli Zhou
- Department of Gastroenterology, The Affiliated Suzhou Hospital of Nanjing Medical UniversitySuzhou 215006, Jiangsu, China
| |
Collapse
|
26
|
Kim KY, Perkins GA, Shim MS, Bushong E, Alcasid N, Ju S, Ellisman MH, Weinreb RN, Ju WK. DRP1 inhibition rescues retinal ganglion cells and their axons by preserving mitochondrial integrity in a mouse model of glaucoma. Cell Death Dis 2015; 6:e1839. [PMID: 26247724 PMCID: PMC4558491 DOI: 10.1038/cddis.2015.180] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Revised: 05/13/2015] [Accepted: 05/18/2015] [Indexed: 11/09/2022]
Abstract
Glaucoma is the leading cause of irreversible blindness and is characterized by slow and progressive degeneration of the optic nerve head axons and retinal ganglion cell (RGC), leading to loss of visual function. Although oxidative stress and/or alteration of mitochondrial (mt) dynamics induced by elevated intraocular pressure (IOP) are associated with this neurodegenerative disease, the mechanisms that regulate mt dysfunction-mediated glaucomatous neurodegeneration are poorly understood. Using a mouse model of glaucoma, DBA/2J (D2), which spontaneously develops elevated IOP, as well as an in vitro RGC culture system, we show here that oxidative stress, as evidenced by increasing superoxide dismutase 2 (SOD2) and mt transcription factor A (Tfam) protein expression, triggers mt fission and loss by increasing dynamin-related protein 1 (DRP1) in the retina of glaucomatous D2 mice as well as in cultured RGCs exposed to elevated hydrostatic pressure in vitro. DRP1 inhibition by overexpressing DRP1 K38A mutant blocks mt fission and triggers a subsequent reduction of oxidative stress, as evidenced by decreasing SOD2 and Tfam protein expression. DRP1 inhibition promotes RGC survival by increasing phosphorylation of Bad at serine 112 in the retina and preserves RGC axons by maintaining mt integrity in the glial lamina of glaucomatous D2 mice. These findings demonstrate an important vicious cycle involved in glaucomatous neurodegeneration that starts with elevated IOP producing oxidative stress; the oxidative stress then leads to mt fission and a specific form of mt dysfunction that generates further oxidative stress, thus perpetuating the cycle. Our findings suggest that DRP1 is a potential therapeutic target for ameliorating oxidative stress-mediated mt fission and dysfunction in RGC and its axons during glaucomatous neurodegeneration. Thus, DRP1 inhibition may provide a new therapeutic strategy for protecting both RGCs and their axons in glaucoma and other optic neuropathies.
Collapse
Affiliation(s)
- K-Y Kim
- Department of Neuroscience, Center for Research in Biological Systems, National Center for Microscopy and Imaging Research, University of California, San Diego, La Jolla, CA, USA
| | - G A Perkins
- Department of Neuroscience, Center for Research in Biological Systems, National Center for Microscopy and Imaging Research, University of California, San Diego, La Jolla, CA, USA
| | - M S Shim
- Laboratory for Optic Nerve Biology, Department of Ophthalmology, Hamilton Glaucoma Center, University of California, San Diego, La Jolla, CA, USA
| | - E Bushong
- Department of Neuroscience, Center for Research in Biological Systems, National Center for Microscopy and Imaging Research, University of California, San Diego, La Jolla, CA, USA
| | - N Alcasid
- Department of Neuroscience, Center for Research in Biological Systems, National Center for Microscopy and Imaging Research, University of California, San Diego, La Jolla, CA, USA
| | - S Ju
- Department of Neuroscience, Center for Research in Biological Systems, National Center for Microscopy and Imaging Research, University of California, San Diego, La Jolla, CA, USA
| | - M H Ellisman
- Department of Neuroscience, Center for Research in Biological Systems, National Center for Microscopy and Imaging Research, University of California, San Diego, La Jolla, CA, USA
| | - R N Weinreb
- Laboratory for Optic Nerve Biology, Department of Ophthalmology, Hamilton Glaucoma Center, University of California, San Diego, La Jolla, CA, USA
| | - W-K Ju
- Laboratory for Optic Nerve Biology, Department of Ophthalmology, Hamilton Glaucoma Center, University of California, San Diego, La Jolla, CA, USA
| |
Collapse
|
27
|
Kim J, Park C, Kauweloa K, Chung Y, Han Y, Ju S. TU-CD-207-05: A Novel Digital Tomosynthesis System Using Orthogonal Scanning Technique: A Feasibility Study. Med Phys 2015. [DOI: 10.1118/1.4925624] [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: 11/07/2022] Open
|
28
|
Hong C, Ju S, Ahn Y. SU-E-T-572: Normal Lung Tissue Sparing in Radiation Therapy for Locally Advanced Non-Small Cell Lung Cancer. Med Phys 2015. [DOI: 10.1118/1.4924934] [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: 11/07/2022] Open
|
29
|
Jackson KL, Dayton RD, Orchard EA, Ju S, Ringe D, Petsko GA, Maquat LE, Klein RL. Preservation of forelimb function by UPF1 gene therapy in a rat model of TDP-43-induced motor paralysis. Gene Ther 2014; 22:20-8. [PMID: 25354681 DOI: 10.1038/gt.2014.101] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 09/04/2014] [Accepted: 10/07/2014] [Indexed: 12/13/2022]
Abstract
Nonsense-mediated mRNA decay (NMD) is an RNA surveillance mechanism that requires upframeshift protein 1 (UPF1). This study demonstrates that human UPF1 exerts protective effects in a rat paralysis model based on the amyotrophic lateral sclerosis (ALS)-associated protein, TDP-43 (transactive response DNA-binding protein 43 kDa). An adeno-associated virus vector (AAV9) was used to express TDP-43 throughout the spinal cord of rats, inducing reproducible limb paralysis, to recapitulate the paralysis in ALS. We selected UPF1 for therapeutic testing based on a genetic screen in yeast. The expression of human TDP-43 or human UPF1 in the spinal cord was titrated to less than twofold over the respective endogenous level. AAV9 human mycUPF1 clearly improved overall motor scores in rats also expressing TDP-43. The gene therapy effect of mycUPF1 was specific and reproducible compared with groups receiving either empty vector or green fluorescent protein vector controls. The gene therapy maintained forelimb motor function in rats that would otherwise become quadriplegic. This work helps validate UPF1 as a novel therapeutic for ALS and other TDP-43-related diseases and may implicate UPF1 and NMD involvement in the underlying disease mechanisms.
Collapse
Affiliation(s)
- K L Jackson
- Department of Pharmacology, Toxicology and Neuroscience, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, USA
| | - R D Dayton
- Department of Pharmacology, Toxicology and Neuroscience, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, USA
| | - E A Orchard
- Department of Animal Resources, Louisiana State University Health Sciences Center, Shreveport, LA, USA
| | - S Ju
- Department of Biological Sciences, Wright State University, Dayton, OH, USA
| | - D Ringe
- Department of Biochemistry and Chemistry, Rosenstiel Basic Medical Sciences Research Center, Brandeis University, Waltham, MA, USA
| | - G A Petsko
- 1] Department of Biochemistry and Chemistry, Rosenstiel Basic Medical Sciences Research Center, Brandeis University, Waltham, MA, USA [2] Department of Neurology and Neuroscience, Helen and Robert Appel Alzheimer's Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medical College, New York, NY, USA
| | - L E Maquat
- 1] Department of Biochemistry and Biophysics, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA [2] Center for RNA Biology, University of Rochester, Rochester, NY, USA
| | - R L Klein
- Department of Pharmacology, Toxicology and Neuroscience, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, USA
| |
Collapse
|
30
|
Lee SJ, Hur J, Lee TW, Ju S, Lee SH, Park KJ, Cho YJ, Jeong YY, Lee JD, Kim HC. Myasthenia Gravis Presenting Initially as Acute Respiratory Failure. Respir Care 2014; 60:e14-6. [DOI: 10.4187/respcare.03210] [Citation(s) in RCA: 4] [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] [Indexed: 11/05/2022]
|
31
|
Hong C, Ju S, Ahn Y, Oh D, Noh J, Chung K, Kim J, Han Y, Choi D. SU-E-T-63: Carotid Sparing Tomohelical Three Dimensional Conformal Radiotherapy for T1N0 Glottic Cancer. Med Phys 2014. [DOI: 10.1118/1.4888393] [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: 11/07/2022] Open
|
32
|
Chung K, Kim J, Shin J, Han Y, Ju S, Hong C, Kim D, Kim H, Shin E, Ahn S, Chung S, Choi D. SU-E-T-239: Monte Carlo Modelling of SMC Proton Nozzles Using TOPAS. Med Phys 2014. [DOI: 10.1118/1.4888570] [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: 11/07/2022] Open
|
33
|
Ju S, Hong C, Kim M, Chung K, Kim J, Han Y, Ahn S, Chung S, Shin E, Shin J, Kim H, Kim D, Choi D. SU-E-T-195: Gantry Angle Dependency of MLC Leaf Position Error. Med Phys 2014. [DOI: 10.1118/1.4888525] [Citation(s) in RCA: 2] [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: 11/07/2022] Open
|
34
|
Zheng D, Zhao Y, Shen Y, Chang X, Ju S, Guo L. Orexin A-mediated stimulation of 3β-HSD expression and testosterone production through MAPK signaling pathways in primary rat Leydig cells. J Endocrinol Invest 2014; 37:285-92. [PMID: 24515297 DOI: 10.1007/s40618-013-0035-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Accepted: 11/16/2013] [Indexed: 01/29/2023]
Abstract
BACKGROUND Orexin A (ORA) regulates food intake, energy metabolism, gastrointestinal and reproductive functions. AIM The purpose of this study was to demonstrate whether the expression of 3β-hydroxysteroid dehydrogenase (3β-HSD) and testosterone was stimulated by ORA and mediated through mitogen-activated protein kinases (MAPK) in rat Leydig cells. METHODS Primary Leydig cells were isolated from male rat testes, cultured, and treated with ORA under various conditions. RESULTS Orexin receptor 1 (OX (1) R) mRNA, but not orexin receptor 2 mRNA, was detected in primary Leydig cells. ORA up-regulated the expression of OX( 1) R mRNA and protein in a dose-responsive manner and increased the phosphorylation of extracellular receptor kinase 1/2 (ERK1/2) and p38 MAPK levels, but did not affect the phosphorylation of the JNK MAPK. Phosphorylation of ERK1/2 and p38 MAPKs by ORA was blocked with U0126 and SB203580 inhibitors, respectively. An OX(1)R-specific inhibitor, SB334867, also blocked the phosphorylation of ERK1/2 and p38 by ORA. Inhibitor treatment also blocked 3β-HSD expression and testosterone production. CONCLUSIONS These results demonstrate that ORA activation of OX(1)R up-regulates 3β-HSD expression and testosterone production via the ERK1/2 and p38 MAPKs signaling pathways in primary rat Leydig cells.
Collapse
|
35
|
Ju S, Chen M, Zhang H, Zhang Z. Dielectric properties of nanosilica/low-density polyethylene composites: The surface chemistry of nanoparticles and deep traps induced by nanoparticles. EXPRESS POLYM LETT 2014. [DOI: 10.3144/expresspolymlett.2014.71] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
|
36
|
Park S, Kim J, Kim J, Park W, Ju S, Han Y, Choi D. EP-1856: Robust treatment planning of active scanned proton therapy in prostate cancer. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)31974-5] [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: 11/28/2022]
|
37
|
Choi Y, Ju S, Chae SH, Jun S, Park SM, Lee S, Lee HW, Ji CH. Low Frequency Vibration Energy Harvester Using Spherical Permanent Magnet with Non-uniform Mass Distribution. ACTA ACUST UNITED AC 2013. [DOI: 10.1088/1742-6596/476/1/012123] [Citation(s) in RCA: 2] [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: 11/12/2022]
|
38
|
Chae SH, Ju S, Choi Y, Jun S, Park SM, Lee S, Lee HW, Ji CH. Electromagnetic Vibration Energy Harvester Using Springless Proof Mass and Ferrofluid as a Lubricant. ACTA ACUST UNITED AC 2013. [DOI: 10.1088/1742-6596/476/1/012013] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
39
|
Zhang K, Chen W, Zhang Y, Ge Y, Ju S, Yang P, Tan Y, Ge Z, Cao Z, Zhao Y, Wu H, Ju S. An anti-human CD13 monoclonal antibody that suppresses the suppressive function of Treg cells. Monoclon Antib Immunodiagn Immunother 2013; 32:16-20. [PMID: 23600500 DOI: 10.1089/mab.2012.0078] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
CD13 (CD13/aminopeptidase N, APN, or CD13/APN) is a widely expressed type II membrane-bound metalloprotease. It is often overexpressed on cancer cells and expressed on CD4(+)CD25(hi) Treg cell subpopulation with higher suppressive ability. It has been determined to be a promising target in cancer diagnosis and therapy. In this study, a functional anti-human CD13 monoclonal antibody, MAb 9E4, was obtained and the specificity of this MAb was verified by flow cytometry. This MAb effectively recognized the CD13 molecule expressed on a series of malignant cell lines. Furthermore, we demonstrated that MAb 9E4 suppresses the suppressive function of Treg cells. This functional anti-human CD13 MAb provides a valuable tool for further study targeting the CD13 positive Treg cells.
Collapse
Affiliation(s)
- Kai Zhang
- General Surgery Department, The Second Affiliated Hospital, Soochow University, Suzhou, Jiangsu Province, China
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
40
|
Deng ZB, Zhuang X, Ju S, Xiang X, Mu J, Liu Y, Jiang H, Zhang L, Mobley J, McClain C, Feng W, Grizzle W, Yan J, Miller D, Kronenberg M, Zhang HG. Exosome-like nanoparticles from intestinal mucosal cells carry prostaglandin E2 and suppress activation of liver NKT cells. J Immunol 2013; 190:3579-89. [PMID: 23467936 DOI: 10.4049/jimmunol.1203170] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Regulation and induction of anergy in NKT cells of the liver can inhibit autoimmune and antitumor responses by mechanisms that are poorly understood. We investigated the effects of PGE2, delivered by intestinal, mucus-derived, exosome-like nanoparticles (IDENs), on NKT cells in mice. In this study, we demonstrate that IDENs migrate to the liver where they induce NKT cell anergy. These effects were mediated by an IDENs' PGE2. Blocking PGE2 synthesis attenuated IDENs inhibition of induction of IFN-γ and IL-4 by α-galactosylceramide (α-GalCer)-stimulated liver NKT cells in a PGE2 E-type prostanoid 2/E-type prostanoid 4 receptor-mediated manner. Proinflammatory conditions enhanced the migration of IDENs to the liver where α-GalCer and PGE2 induced NKT anergy in response to subsequent α-GalCer stimulation. These findings demonstrate that IDENs carrying PGE2 can be transferred from the intestine to the liver, where they act as immune modulators, inducing an anergic-like state of NKT cells. These reagents might be developed as therapeutics for autoimmune liver diseases.
Collapse
Affiliation(s)
- Zhong-Bin Deng
- Department of Microbiology and Immunology, Brown Cancer Center, University of Louisville, Louisville, KY 40202, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
41
|
Deng ZB, Zhuang X, Ju S, Xiang X, Mu J, Wang Q, Hong J, Zhang L, Kronenberg M, Yan J, Miller D, Zhang HG. Intestinal mucus-derived nanoparticle-mediated activation of Wnt/β-catenin signaling plays a role in induction of liver natural killer T cell anergy in mice. Hepatology 2013; 57:1250-61. [PMID: 22991247 PMCID: PMC4414328 DOI: 10.1002/hep.26086] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [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: 05/21/2012] [Accepted: 09/07/2012] [Indexed: 01/30/2023]
Abstract
UNLABELLED The Wnt/β-catenin pathway has been known to play a role in induction of immune tolerance, but its role in the induction and maintenance of natural killer T (NKT) cell anergy is unknown. We found that activation of the Wnt pathways in the liver microenvironment is important for induction of NKT cell anergy. We identified a number of stimuli triggering Wnt/β-catenin pathway activation, including exogenous NKT cell activator, glycolipid α-GalCer, and endogenous prostaglandin E2 (PGE2). Glycolipid α-GalCer treatment of mice induced the expression of wnt3a and wnt5a in the liver and subsequently resulted in a liver microenvironment that induced NKT cell anergy to α-GalCer restimulation. We also found that circulating PGE2 carried by nanoparticles is stable, and that these nanoparticles are A33(+) . A33(+) is a marker of intestinal epithelial cells, which suggests that the nanoparticles are derived from the intestine. Mice treated with PGE2 associated with intestinal mucus-derived exosome-like nanoparticles (IDENs) induced NKT cell anergy. PGE2 treatment leads to activation of the Wnt/β-catenin pathway by inactivation of glycogen synthase kinase 3β of NKT cells. IDEN-associated PGE2 also induces NKT cell anergy through modification of the ability of dendritic cells to induce interleukin-12 and interferon-β in the context of both glycolipid presentation and Toll-like receptor-mediated pathways. CONCLUSION These findings demonstrate that IDEN-associated PGE2 serves as an endogenous immune modulator between the liver and intestines and maintains liver NKT cell homeostasis. This finding has implications for development of NKT cell-based immunotherapies. (HEPATOLOGY 2013).
Collapse
Affiliation(s)
- Zhong-Bin Deng
- Louisville Veterans Administration Medical Center, Department of Microbiology & Immunology, Brown Cancer Center, University of Louisville, KY 40202, USA.
| | - Xiaoying Zhuang
- Brown Cancer Center, Department of Microbiology & Immunology, University of Louisville, KY 40202
| | - Songwen Ju
- Brown Cancer Center, Department of Microbiology & Immunology, University of Louisville, KY 40202
| | - Xiaoyu Xiang
- Brown Cancer Center, Department of Microbiology & Immunology, University of Louisville, KY 40202
| | - Jingyao Mu
- Brown Cancer Center, Department of Microbiology & Immunology, University of Louisville, KY 40202
| | - Qilong Wang
- Brown Cancer Center, Department of Microbiology & Immunology, University of Louisville, KY 40202
| | - Jiang Hong
- Brown Cancer Center, Department of Microbiology & Immunology, University of Louisville, KY 40202
| | - Lifeng Zhang
- Brown Cancer Center, Department of Microbiology & Immunology, University of Louisville, KY 40202
| | - Mitchell Kronenberg
- La Jolla Institute for Allergy & Immunology, Athena Circle La Jolla, CA 92037
| | - Jun Yan
- Brown Cancer Center, Department of Microbiology & Immunology, University of Louisville, KY 40202
| | - Donald Miller
- Brown Cancer Center, Department of Microbiology & Immunology, University of Louisville, KY 40202
| | - Huang-Ge Zhang
- Louisville Veterans Administration Medical Center, Louisville, KY 40206,Brown Cancer Center, Department of Microbiology & Immunology, University of Louisville, KY 40202,Address correspondence and reprint requests to: Dr. Huang-Ge Zhang or Zhong-Bin Deng, Brown Cancer Center, University of Louisville, CTRB 309, 505 Hancock Street, Louisville, KY 40202, or
| |
Collapse
|
42
|
Park S, Park H, Kim J, Ju S, Choi D. Comparison of Different Treatment Techniques in Radiation Therapy for Hepatocellular Carcinoma: Dosimetric Analysis According to Tumor Location. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.2269] [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: 10/27/2022]
|
43
|
Ju S, Kim M, Hong C, Yim D, Kim J, Shin D, Lee S, Han Y, Shin J, Choi D. New Technique for Developing Proton Range Compensator Using 3-dimensional Printer. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.2240] [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: 10/27/2022]
|
44
|
Ju S, Kim M, Hong C, Yim D, Kim J, Shin D, Lee S, Han Y, Shin J, Shin E, Ahn S, Choi D. SU-E-T-292: New Technique for Developing Proton Range Compensator Using Three-Dimensional Printer. Med Phys 2012; 39:3770-3771. [DOI: 10.1118/1.4735360] [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: 11/07/2022] Open
|
45
|
Ju S, Hong C, Yim D, Kim M, Kim J, Han Y, Shin J, Shin E, Ahn S, Choi D. SU-E-J-172: Development of a Video Guided Real-Time Patient Motion Monitoring System for Helical Tomotherpay. Med Phys 2012; 39:3692. [DOI: 10.1118/1.4735011] [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: 11/07/2022] Open
|
46
|
Deng Z, Ju S, Zhuang X, Xiang X, Miller D, Zhang HG. Intestinal epithelial cells-derived exosomes provide a bridge between the gut and the liver that prevents liver inflammation through prostaglandin E2 induction of NK T cell anergy (49.11). The Journal of Immunology 2012. [DOI: 10.4049/jimmunol.188.supp.49.11] [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
The in vivo regulation/induction of NTK anergy has been associated with inhibition of autoimmune and anti-tumor response, but the underlying mechanisms are poorly understood. In this study, we demonstrated that exosomes released from intestinal epithelial cells migrated into liver and induced liver NKT anergy. Unexpectedly, these effects were mediated by an exosomal PGE2 , which were demonstrated in a NKT-mediated liver injury model induced by ConA. Consistent with these findings, blocking PGE2 synthesis attenuated intestinal epithelial cells exosomes mediated inhibition of induction of IFN-γ and IL-4 of α-GalCer stimulated liver NKT cells as a PGE2 receptors mediated and PKA dependent manner. Pro-inflammation condition increased permeability of intestine and thus enhanced accumulation of intestinal epithelial cells exosomes migrated into liver where PGE2 induced NKT anergy in response to subsequently α-GalCer stimulation. Thus, these findings demonstrate a previously unappreciated role for intestinal epithelial cell exosomes served as immune modulator between liver and intestine and maintaining liver NKT homeostasis. Our findings have also important implications for the development of NKT cell-based vaccines and immunotherapies.
Collapse
Affiliation(s)
- Zhongbin Deng
- 1James Brown Cancer Center, University of Louisville, Louisville, KY
- 3Department of Medicine, University of Louisville, louisville, KY
| | - Songwen Ju
- 1James Brown Cancer Center, University of Louisville, Louisville, KY
| | - Xiaoying Zhuang
- 1James Brown Cancer Center, University of Louisville, Louisville, KY
| | - Xiaoyu Xiang
- 1James Brown Cancer Center, University of Louisville, Louisville, KY
| | - Donald Miller
- 1James Brown Cancer Center, University of Louisville, Louisville, KY
- 3Department of Medicine, University of Louisville, louisville, KY
| | - Huang-ge Zhang
- 1James Brown Cancer Center, University of Louisville, Louisville, KY
- 2Department of Microbiology & Immunology, University of Louisville, louisville, KY
| |
Collapse
|
47
|
Deng Z, Cheng Z, Xiang X, Yan J, Zhuang X, Liu C, Jiang H, Ju S, Zhang L, Grizzle W, Mobley J, Roman J, Miller D, Zhang HG. Tumor cell cross talk with tumor-associated leukocytes leads to induction of tumor exosomal fibronectin and promotes tumor progression. Am J Pathol 2011. [PMID: 22067905 DOI: 10.1016/jajpath.2011.09.023] [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] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Exosomes participate in intercellular communication, but most data published are based on exosomes released from in vitro cultured cells that do not communicate with neighboring cells located in the same microenvironment as the exosomal-producing cells in vivo. In this study, our data show that co-culture of leukocytes isolated from breast tumor tissue leads to uptake of fibronectin (FN) on or in the tumor exosomes (Exo(fib+)). The induction of FN and exosomal uptake is tumor tissue derived and leukocyte specific, because leukocytes isolated from the peripheral blood of naïve mice failed to induce FN uptake by tumor exosomes. Furthermore, depletion of both CD25(+) cells and Gr-1(+) cells from tumor-associated leukocytes causes a reduction of Exo(fib+), suggesting that tumor-associated CD25(+) cells and Gr-1(+) cells participate in FN production and uptake by tumor exosomes, resulting in Exo(fib+). As a result of tumor cells absorbing Exo(fib+), two major events are induced: focal adhesion kinase/Src-dependent signaling pathways are activated, and the production of proinflammatory cytokines and metalloproteinase 9 is enhanced in response to absorbing exosomes. This, in turn, enhances tumor cell invasion in vitro and in vivo. Collectively, our findings provide evidence that exosomes released from freshly excised tumor tissue cells that have communicated/interacted with immune cells gain new immune evasion capacity.
Collapse
Affiliation(s)
- ZhongBin Deng
- Department of Research & Development, Robley Rex Medical Center, Louisville, Kentucky, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
48
|
Deng Z, Cheng Z, Xiang X, Yan J, Zhuang X, Liu C, Jiang H, Ju S, Zhang L, Grizzle W, Mobley J, Roman J, Miller D, Zhang HG. Tumor cell cross talk with tumor-associated leukocytes leads to induction of tumor exosomal fibronectin and promotes tumor progression. Am J Pathol 2011; 180:390-8. [PMID: 22067905 DOI: 10.1016/j.ajpath.2011.09.023] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2011] [Revised: 09/08/2011] [Accepted: 09/27/2011] [Indexed: 01/05/2023]
Abstract
Exosomes participate in intercellular communication, but most data published are based on exosomes released from in vitro cultured cells that do not communicate with neighboring cells located in the same microenvironment as the exosomal-producing cells in vivo. In this study, our data show that co-culture of leukocytes isolated from breast tumor tissue leads to uptake of fibronectin (FN) on or in the tumor exosomes (Exo(fib+)). The induction of FN and exosomal uptake is tumor tissue derived and leukocyte specific, because leukocytes isolated from the peripheral blood of naïve mice failed to induce FN uptake by tumor exosomes. Furthermore, depletion of both CD25(+) cells and Gr-1(+) cells from tumor-associated leukocytes causes a reduction of Exo(fib+), suggesting that tumor-associated CD25(+) cells and Gr-1(+) cells participate in FN production and uptake by tumor exosomes, resulting in Exo(fib+). As a result of tumor cells absorbing Exo(fib+), two major events are induced: focal adhesion kinase/Src-dependent signaling pathways are activated, and the production of proinflammatory cytokines and metalloproteinase 9 is enhanced in response to absorbing exosomes. This, in turn, enhances tumor cell invasion in vitro and in vivo. Collectively, our findings provide evidence that exosomes released from freshly excised tumor tissue cells that have communicated/interacted with immune cells gain new immune evasion capacity.
Collapse
Affiliation(s)
- ZhongBin Deng
- Department of Research & Development, Robley Rex Medical Center, Louisville, Kentucky, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
49
|
Abstract
The purpose of this study was to investigate the role of porcine cumulus cells (CC) in oocyte maturation and somatic cell nuclear transfer (SCNT) embryo development in vitro. Denuded pig oocytes were co-cultured with CC or routinely cultured in maturation medium without a feeder layer. Porcine CC inactivated with mitomycin C or non-inactivated were used for the feeder layer in co-culture with porcine SCNT embryos to investigate comparatively the developmental competence of cloned embryos. The DNA damage aspects of apoptosis and expression pattern of genes implicated in apoptosis (Fas/FasL) as well as the mRNA expression of DNA methyltransferase (Dnmt1, Dnmt3a) of porcine SCNT embryos were also evaluated by comet assay or real-time RT-PCR, respectively. The results showed that co-culture with CC improved the extrusion rate of pbI (49.3% vs 31.5%, p<0.05) and survival rate (75.7% vs 53.3%, p<0.05) of denuded oocytes, but had no effects on blastocyst developmental rate or 2-cell-stage survival rate of in vitro fertilization embryos. Co-culture with CC inactivated by mitomycin C improved the blastocyst developmental rate (26.6% vs 13.0%, p<0.05) and decreased the apoptotic incidence (27.6% vs 46.2%, p<0.05) of porcine cloned embryos. Co-culture with inactivated CC reduced Fas and FasL mRNA expression of cloned embryos at the blastocyst stage compared with NT controls (p<0.05), but there were no differences in Dnmt1 and Dnmt3a mRNA expression among groups. Co-culture with inactivated cumulus cell monolayer significantly increased blastocyst formation and decreased the apoptotic incidence in porcine cloned embryos during in vitro development.
Collapse
Affiliation(s)
- S Ju
- College of Veterinary Medicine, Nanjing Agricultural University, Jiangsu, China
| | | |
Collapse
|
50
|
Shin E, Han Y, Park H, Shin J, Ju S, Kim J, Choi D. SU-E-T-438: Motion Induced Dose Artifact of Multi-Fractional Tomotheapy. Med Phys 2011. [DOI: 10.1118/1.3612392] [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: 11/07/2022] Open
|