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Wang KY, Gao MX, Qi HB, An WT, Lin JY, Ning SL, Yang F, Xiao P, Cheng J, Pan W, Cheng QX, Wang J, Fang L, Sun JP, Yu X. Differential contributions of G protein- or arrestin subtype-mediated signalling underlie urocortin 3-induced somatostatin secretion in pancreatic δ cells. Br J Pharmacol 2024. [PMID: 38613153 DOI: 10.1111/bph.16351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 12/29/2023] [Accepted: 02/05/2024] [Indexed: 04/14/2024] Open
Abstract
BACKGROUND AND PURPOSE Pancreatic islets are modulated by cross-talk among different cell types and paracrine signalling plays important roles in maintaining glucose homeostasis. Urocortin 3 (UCN3) secreted by pancreatic β cells activates the CRF2 receptor (CRF2R) and downstream pathways mediated by different G protein or arrestin subtypes in δ cells to cause somatostatin (SST) secretion, and constitutes an important feedback circuit for glucose homeostasis. EXPERIMENTAL APPROACH Here, we used Arrb1-/-, Arrb2-/-, Gsfl/fl and Gqfl/fl knockout mice, the G11-shRNA-GFPfl/fl lentivirus, as well as functional assays and pharmacological characterization to study how the coupling of Gs, G11 and β-arrestin1 to CRF2R contributed to UCN3-induced SST secretion in pancreatic δ cells. KEY RESULTS Our study showed that CRF2R coupled to a panel of G protein and arrestin subtypes in response to UCN3 engagement. While RyR3 phosphorylation by PKA at the S156, S2706 and S4697 sites may underlie the Gs-mediated UCN3- CRF2R axis for SST secretion, the interaction of SYT1 with β-arrestin1 is also essential for efficient SST secretion downstream of CRF2R. The specific expression of the transcription factor Stat6 may contribute to G11 expression in pancreatic δ cells. Furthermore, we found that different UCN3 concentrations may have distinct effects on glucose homeostasis, and these effects may depend on different CRF2R downstream effectors. CONCLUSIONS AND IMPLICATIONS Collectively, our results provide a landscape view of signalling mediated by different G protein or arrestin subtypes downstream of paracrine UCN3- CRF2R signalling in pancreatic β-δ-cell circuits, which may facilitate the understanding of fine-tuned glucose homeostasis networks.
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Affiliation(s)
- Kai-Yu Wang
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, China
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Ming-Xin Gao
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Hai-Bo Qi
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Wen-Tao An
- Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Jing-Yu Lin
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Shang-Lei Ning
- Department of Hepatobiliary Surgery, General surgery, Qilu Hospital, Shandong University, Jinan, China
| | - Fan Yang
- Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Peng Xiao
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, China
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Jie Cheng
- Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Wei Pan
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Qiu-Xia Cheng
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Jin Wang
- Department of Pharmacology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Le Fang
- Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Jin-Peng Sun
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shandong University, Jinan, China
- Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xiao Yu
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, China
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Wu YK, Su YA, Zhu LL, Yan C, Li JT, Lin JY, Chen J, Chen L, Li K, Stein DJ, Si TM. A distinctive subcortical functional connectivity pattern linking negative affect and treatment outcome in major depressive disorder. Transl Psychiatry 2024; 14:136. [PMID: 38443354 PMCID: PMC10915152 DOI: 10.1038/s41398-024-02838-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 02/11/2024] [Accepted: 02/15/2024] [Indexed: 03/07/2024] Open
Abstract
Major depressive disorder (MDD) is associated with functional disturbances in subcortical regions. In this naturalistic prospective study (NCT03294525), we aimed to investigate relationships among subcortical functional connectivity (FC), mood symptom profiles and treatment outcome in MDD using multivariate methods. Medication-free participants with MDD (n = 135) underwent a functional magnetic resonance imaging scan at baseline and completed posttreatment clinical assessment after 8 weeks of antidepressant monotherapy. We used partial least squares (PLS) correlation analysis to explore the association between subcortical FC and mood symptom profiles. FC score, reflecting the weighted representation of each individual in this association, was computed. Replication analysis was undertaken in an independent sample (n = 74). We also investigated the relationship between FC score and treatment outcome in the main sample. A distinctive subcortical connectivity pattern was found to be associated with negative affect. In general, higher FC between the caudate, putamen and thalamus was associated with greater negative affect. This association was partly replicated in the independent sample (similarity between the two samples: r = 0.66 for subcortical connectivity, r = 0.75 for mood symptom profile). Lower FC score predicted both remission and response to treatment after 8 weeks of antidepressant monotherapy. The emphasis here on the role of dorsal striatum and thalamus consolidates prior work of subcortical connectivity in MDD. The findings provide insight into the pathogenesis of MDD, linking subcortical FC with negative affect. However, while the FC score significantly predicted treatment outcome, the low odds ratio suggests that finding predictive biomarkers for depression remains an aspiration.
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Affiliation(s)
- Yan-Kun Wu
- Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, 100191, China
| | - Yun-Ai Su
- Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, 100191, China.
| | - Lin-Lin Zhu
- Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, 100191, China
| | - ChaoGan Yan
- CAS Key Laboratory of Behavioral Science, Institute of Psychology, Beijing, China
| | - Ji-Tao Li
- Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, 100191, China
| | - Jing-Yu Lin
- Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, 100191, China
| | - JingXu Chen
- Beijing HuiLongGuan Hospital, Peking University HuiLongGuan Clinical Medical School, Beijing, 100096, China
| | - Lin Chen
- Beijing HuiLongGuan Hospital, Peking University HuiLongGuan Clinical Medical School, Beijing, 100096, China
| | - Ke Li
- PLA Strategic support Force Characteristic Medical Center, Beijing, 100101, China
| | - Dan J Stein
- Neuroscience Institute, Department of Psychiatry and Mental Health, South African Medical Research Council (SAMRC), Unit on Risk and Resilience in Mental Disorders, University of Cape Town, Cape Town, South Africa
| | - Tian-Mei Si
- Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, 100191, China.
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Chen L, Xu YY, Lin JY, Ji ZP, Yang F, Tan S, Wang G, Fang Y, Lu Z, Yang H, Hu J, Chen Z, Huang Y, Sun J, Wang X, Li H, Zhang J, Wang Y, Su Y, Zhao Y, Si T. The prevalence and clinical correlates of suicide attempts in patients with bipolar disorder misdiagnosed with major depressive disorder: Results from a national survey in China. Asian J Psychiatr 2024; 93:103958. [PMID: 38364597 DOI: 10.1016/j.ajp.2024.103958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 01/13/2024] [Accepted: 02/02/2024] [Indexed: 02/18/2024]
Abstract
BACKGROUND AND AIM Suicide is nearly always associated with underlying mental disorders. Risk factors for suicide attempts (SAs) in patients with bipolar disorder (BD) misdiagnosed with major depressive disorder (MDD) remain unelucidated. This study was to evaluate the prevalence and clinical risk factors of SAs in Chinese patients with BD misdiagnosed with MDD. METHODS A total of 1487 patients with MDD from 13 mental health institutions in China were enrolled. Mini International Neuropsychiatric Interview (MINI) was used to identify patients with BD who are misdiagnosed as MDD. The general sociodemographic and clinical data of the patients were collected and MINI suicide module was used to identify patients with SAs in these misdiagnosed patients. RESULTS In China, 20.6% of patients with BD were incorrectly diagnosed as having MDD. Among these misdiagnosed patients, 26.5% had attempted suicide. These patients tended to be older, had a higher number of hospitalizations, and were more likely to experience frequent and seasonal depressive episodes with atypical features, psychotic symptoms, and suicidal thoughts. Frequent depressive episodes and suicidal thoughts during depression were identified as independent risk factors for SAs. Additionally, significant sociodemographic and clinical differences were found between individuals misdiagnosed with MDD in BD and patients with MDD who have attempted suicide. CONCLUSIONS This study highlights the importance of accurate diagnosis in individuals with BD and provide valuable insights for the targeted identification and intervention of individuals with BD misdiagnosed as having MDD and those with genuine MDD, particularly in relation to suicidal behavior.
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Affiliation(s)
- Lin Chen
- Beijing Huilongguan Hospital, Peking University, Beijing, China
| | - Yu-Yu Xu
- Universiti Tunku Abdul Rahman (UTAR), Kampar, Malaysia
| | - Jing-Yu Lin
- Beijing Huilongguan Hospital, Peking University, Beijing, China
| | - Zhen Peng Ji
- School of Public Health, Peking University Health Science Center, Beijing, China
| | - Fude Yang
- Beijing Huilongguan Hospital, Peking University, Beijing, China
| | - Shuping Tan
- Beijing Huilongguan Hospital, Peking University, Beijing, China
| | - Gang Wang
- Mood Disorders Center, Beijing Anding Hospital, Capital Medical University, China
| | - YiRu Fang
- Division of Mood Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zheng Lu
- Shanghai Tongji Hospital, Tongji University Medical School, Shanghai, China
| | - HaiChen Yang
- Division of Mood Disorders, Shenzhen Mental Health Center, Guangdong province, China
| | - Jian Hu
- The First Hospital of Harbin Medical University, Heilongjiang province, China
| | - ZhiYu Chen
- Hangzhou Seventh People's Hospital, Zhejiang province, China
| | - Yi Huang
- West China Hospital, Sichuan University, Sichuan province, China
| | - Jing Sun
- The Affiliated Brain Hospital, Nanjing Medical University, Jiangsu province, China
| | - Xiaoping Wang
- Mental Health Institute, The Second Xiangya Hospital, Central South University, Hunan province, China
| | - Huichun Li
- The Second Affiliated Hospital, College of Medicine, Zhejiang University, Zhejiang province, China
| | - Jinbei Zhang
- The Third Affiliated Hospital of Sun Yat-Sen University, Guangdong province, China
| | - Ying Wang
- The 261st hospital of PLA, Beijing, China
| | - Yunai Su
- Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), China
| | - Yanli Zhao
- Beijing Huilongguan Hospital, Peking University, Beijing, China.
| | - Tianmei Si
- Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), China.
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Lin JY, Meng CD, Zhu DD, Xiu Q. [Misdiagnosis of intracranial and extracranial communicating meningiomas: two cases report]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2024; 59:158-161. [PMID: 38369795 DOI: 10.3760/cma.j.cn115330-20230922-00110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Affiliation(s)
- J Y Lin
- Department of Otorhinolaryngology Head and Neck Surgery, China-Japan Union Hospital of Jilin University, Jilin Provincial Key Laboratory of Precise Diagnosis and Treatment of Upper Airway Allergic Diseases, Changchun 130000, China
| | - C D Meng
- Department of Otorhinolaryngology Head and Neck Surgery, China-Japan Union Hospital of Jilin University, Jilin Provincial Key Laboratory of Precise Diagnosis and Treatment of Upper Airway Allergic Diseases, Changchun 130000, China
| | - D D Zhu
- Department of Otorhinolaryngology Head and Neck Surgery, China-Japan Union Hospital of Jilin University, Jilin Provincial Key Laboratory of Precise Diagnosis and Treatment of Upper Airway Allergic Diseases, Changchun 130000, China
| | - Q Xiu
- Department of Otorhinolaryngology Head and Neck Surgery, China-Japan Union Hospital of Jilin University, Jilin Provincial Key Laboratory of Precise Diagnosis and Treatment of Upper Airway Allergic Diseases, Changchun 130000, China
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Wang YC, Li J, Guo YT, Li J, Lin JY. [Clinical pathological and genetic mutation characteristics of conjunctival lymphoepithelial carcinoma]. Zhonghua Yan Ke Za Zhi 2024; 60:64-71. [PMID: 38199770 DOI: 10.3760/cma.j.cn112142-20231013-00136] [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: 01/12/2024]
Abstract
Objective: To analyze the clinical pathological and genetic mutation characteristics of conjunctival lymphoepithelial carcinoma. Methods: A retrospective case series study was conducted. Data from three patients diagnosed with conjunctival lymphoepithelial carcinoma and treated with tumor resection surgery at Tianjin Eye Hospital from January 2006 to December 2022 were collected. Four paraffin specimens (including one patient undergoing two surgeries) were subjected to immunohistochemical staining for epithelial antigen and lymphocytic antigen. Epstein-Barr virus (EBV)-encoded RNA (EBER) was detected using in situ hybridization, and whole-exome sequencing was performed on three specimens from two patients using next-generation sequencing methods. Results: All three patients were males aged over 65, with a disease duration ranging from 3 to 44 months. The tumors were unilateral, located on the bulbar or limbal conjunctiva, appearing red, with a maximum diameter of 4-20 mm. Imaging examinations revealed anterior location of the tumors with no involvement of the orbital bone, extraocular muscles, optic nerve, or paranasal sinuses. No local lymph node metastasis was observed in any patient. Pathological findings included undifferentiated carcinoma nests with significant reactive lymphocytic and plasma cell infiltration. Tumor cells were positive for pan-cytokeratin (CK-pan), epithelial membrane antigen (EMA), tumor protein 40 (p40), and tumor protein 63 (p63), with a cell proliferation index (Ki67) exceeding 80%. Cluster of differentiation 20 (CD20), CD3, and CD8 were positive for lymphocytes. In situ hybridization showed partial tumor cell expression of EBER in two specimens of one patient. Whole-exome sequencing revealed 58, 50, and 36 mutated genes in the three specimens, with enriched signaling pathways including melanoma signaling pathway, Notch1 signaling pathway, and RHOQ GTP cycle; enriched biochemical processes included amino acid starvation response, programmed cell death, regulation of lipid synthesis, sodium ion transport, and chromosome segregation. The common mutated gene in all three specimens was SZT2, and SZT2 was involved in the amino acid starvation response. One patient underwent a second complete resection surgery 40 months after partial excision, while the other two underwent complete resection surgery without recurrence. Two patients did not undergo radiation or chemotherapy, and one was lost to follow-up. Conclusions: Conjunctival lymphoepithelial carcinoma is associated with prominent lymphocytic and plasma cell infiltration, some cases are associated with EBV infection, and SZT2 mutations are present in conjunctival lymphoepithelial carcinoma.
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Affiliation(s)
- Y C Wang
- Tianjin Eye Hospital, Nankai University Affiliated Eye Hospital, Clinical College of Ophthalmology of Tianjin Medical University, Tianjin Eye Institute, Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin 300020, China
| | - J Li
- Tianjin Eye Hospital, Nankai University Affiliated Eye Hospital, Clinical College of Ophthalmology of Tianjin Medical University, Tianjin Eye Institute, Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin 300020, China
| | - Y T Guo
- Tianjin Eye Hospital, Nankai University Affiliated Eye Hospital, Clinical College of Ophthalmology of Tianjin Medical University, Tianjin Eye Institute, Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin 300020, China
| | - J Li
- Tianjin Eye Hospital, Nankai University Affiliated Eye Hospital, Clinical College of Ophthalmology of Tianjin Medical University, Tianjin Eye Institute, Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin 300020, China
| | - J Y Lin
- Tianjin Eye Hospital, Nankai University Affiliated Eye Hospital, Clinical College of Ophthalmology of Tianjin Medical University, Tianjin Eye Institute, Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin 300020, China
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Kao YC, Lin JY, Chen WC, Gamal Mohamed M, Huang CF, Chen JH, Kuo SW. High-Thermal Stable Epoxy Resin through Blending Nanoarchitectonics with Double-Decker-Shaped Polyhedral Silsesquioxane-Functionalized Benzoxazine Derivatives. Polymers (Basel) 2023; 16:112. [PMID: 38201777 PMCID: PMC10780953 DOI: 10.3390/polym16010112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/18/2023] [Accepted: 12/27/2023] [Indexed: 01/12/2024] Open
Abstract
A series of di-functional benzoxazine (BZ) monomers was synthesized, specifically the double-decker silsesquioxane (DDSQ) cage structure (DDSQ-BZ). Comparative analyses were conducted between DDSQ-BZ monomers and the most commonly utilized bisphenol A-functionalized bifunctional benzoxazine (BPA-BZ) monomer. DDSQ-BZ compounds possess better thermal properties such as high char yield and high thermal decomposition temperature (Td10) after thermal ring-opening polymerization (ROP) because the inorganic DDSQ cage nanostructure features a nano-reinforcement effect. In addition, blending inorganic DDSQ-BZ compounds with epoxy resin was explored to form organic/inorganic hybrids with enhanced thermal and mechanical properties following thermal ROP. The improvement in mechanical properties is primarily attributed to the network structure formed by the cross-linking between DDSQ-BZ and the epoxy resin during thermal ROP, as well as hydrogen bonding interactions formed between the hydroxyl groups generated during thermal ROP and the Si-O-Si bonds in the DDSQ structure.
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Affiliation(s)
- Yang-Chin Kao
- Department of Materials and Optoelectronic Science, Center for Functional Polymers and Supramolecular Materials, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan; (Y.-C.K.); (W.-C.C.); (M.G.M.)
| | - Jing-Yu Lin
- Department of Chemistry, National Kaohsiung Normal University, Kaohsiung 80201, Taiwan;
| | - Wei-Cheng Chen
- Department of Materials and Optoelectronic Science, Center for Functional Polymers and Supramolecular Materials, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan; (Y.-C.K.); (W.-C.C.); (M.G.M.)
| | - Mohamed Gamal Mohamed
- Department of Materials and Optoelectronic Science, Center for Functional Polymers and Supramolecular Materials, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan; (Y.-C.K.); (W.-C.C.); (M.G.M.)
- Chemistry Department, Faculty of Science, Assiut University, Assiut 71515, Egypt
| | - Chih-Feng Huang
- Department of Chemical Engineering, i-Center for Advanced Science and Technology (iCAST), National Chung Hsing University, Taichung 40227, Taiwan;
| | - Jung-Hui Chen
- Department of Chemistry, National Kaohsiung Normal University, Kaohsiung 80201, Taiwan;
| | - Shiao-Wei Kuo
- Department of Materials and Optoelectronic Science, Center for Functional Polymers and Supramolecular Materials, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan; (Y.-C.K.); (W.-C.C.); (M.G.M.)
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
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Wang CH, Lin JY, Wang Y, Chen HY, Wu W, Li J, Li XY, Lyu QZ, Cheng LL. [Clinical characteristics analysis of patients with severe immune checkpoint inhibitors related myocarditis]. Zhonghua Yi Xue Za Zhi 2023; 103:3394-3401. [PMID: 37963737 DOI: 10.3760/cma.j.cn112137-20230901-00368] [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: 11/16/2023]
Abstract
Objective: To analyze the clinical characteristics of patients with severe immune checkpoint inhibitors (ICIs) related myocarditis. Methods: A retrospective study was conducted on the 50 patients with ICIs-related myocarditis in the multidisciplinary cardio-oncology clinic of Zhongshan Hospital affiliated to Fudan University from April 2020 to April 2022. The age of patients was (63.7±10.8) years old, including 37 males and 13 females. The patients were divided into the mild group (n=37) and the severe group (n=13) according to severity. The differences of basic characteristics, clinical manifestations, laboratory tests, auxiliary examination, combined irAEs, treatment and outcomes between the two groups of patients were analyzed. Results: The immunotherapy time [M(Q1,Q3)] of patients in the mild group and severe group were 81 (49, 134) and 24 (20, 116) days, respectively (P<0.05). In the severe group, the levels of cTnT [0.605 (0.317, 1.072) μg/L], NT-proBNP [1 126 (386, 1 744) ng/L], CK-MB [78 (48, 238) U/L], and CK-MM [240 (45, 6 543) U/L] were higher than those in the mild group [0.104 (0.045, 0.189) μg/L, 237 (39, 785) ng/L, 24 (20, 33) U/L, 108 (72, 168) U/L, respectively] (all P<0.05). The left ventricular ejection fraction of the severe group [64% (57%, 65%)] was lower than that of the mild group [66% (63%, 69%)] (P<0.05), and the incidence of conduction block (n=4, 4/13) and abnormal ventricular wall motion (n=4, 4/13), the incidence of ICIs-related myositis (n=10, 10/13), ICIs-related hepatitis (n=4, 4/13) and ICIs-related neurotoxicity (n=4, 4/13) were higher than those in the mild group (n=1, 2.7%; n=2, 5.4%; n=16, 43.2%; n=2, 5.4%; n=1, 2.7%, respectively) (all P<0.05). The proportion of patients receiving intensified immunosuppressive therapy and mortality rate in the severe group were 12/13 (n=12) and 4/13 (n=4), which were both higher than those in the mild group [10.8% (n=4) and 0] (both P<0.05). Conclusions: The incidence of ICIs-related myocarditis is not high, but the severe rate and mortality are high. The differential diagnosis of severe ICIs related myocarditis should be combined with myocardial markers, electrocardiogram and echocardiogram, and early diagnosis and treatment can improve the prognosis of patients.
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Affiliation(s)
- C H Wang
- Department of Pharmacy, Zhongshan Hospital Affiliated to Fudan University, Shanghai 200032, China
| | - J Y Lin
- Department of Cardiology, Zhongshan Hospital Affiliated to Fudan University & Shanghai Institute of Cardiovascular Diseases, Shanghai 200032, China
| | - Y Wang
- Department of Oncology, Zhongshan Hospital Affiliated to Fudan University, Shanghai 200032, China
| | - H Y Chen
- Department of Rheumatology and Immunology, Zhongshan Hospital Affiliated to Fudan University, Shanghai 200032, China
| | - W Wu
- Department of Pharmacy, Zhongshan Hospital Affiliated to Fudan University, Shanghai 200032, China
| | - J Li
- Department of Pharmacy, Zhongshan Hospital Affiliated to Fudan University, Shanghai 200032, China
| | - X Y Li
- Department of Pharmacy, Zhongshan Hospital Affiliated to Fudan University, Shanghai 200032, China
| | - Q Z Lyu
- Department of Pharmacy, Zhongshan Hospital Affiliated to Fudan University, Shanghai 200032, China
| | - L L Cheng
- Department of Cardiac Ultrasound, Zhongshan Hospital Affiliated to Fudan University, Shanghai Institute of Cardiovascular Diseases & Shanghai Institute of Imaging Medicine, Shanghai 200032, China
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Li J, Wang YC, Lin JY. [Clinical pathological characteristics analysis of ocular adnexal follicular lymphoma]. Zhonghua Yan Ke Za Zhi 2023; 59:930-936. [PMID: 37936361 DOI: 10.3760/cma.j.cn112142-20230201-00036] [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: 11/09/2023]
Abstract
Objective: To investigate the clinical pathological characteristics of ocular adnexal follicular lymphoma (OAFL). Methods: A retrospective case series study was conducted. Clinical data of 10 OAFL patients diagnosed at Tianjin Eye Hospital from January 1990 to May 2022 were collected. The study analyzed general patient information, medical history, site of involvement, imaging, histopathology, and molecular detection. Among them, 7 cases underwent Epstein-Barr virus-encoded small RNA (EBER) and B-cell lymphoma protein 2 (BCL-2)/immunoglobulin heavy chain gene (IgH) translocation gene detection. Treatment and prognosis of patients were followed up. Results: All 10 patients (10 eyes) had unilateral involvement, including 5 males and 5 females, with an age range of 58 (43, 68) years. Clinical manifestations included eyelid swelling, pink conjunctival thickening, painless slow-growing masses in the lacrimal gland area, extraconal muscle cone, conjunctiva, lacrimal sac, or a combination of lacrimal sac and conjunctiva. Among them, 8 cases were primary, and 2 cases were secondary. According to the Ann Arbor staging, 8 cases were stage Ⅰ-Ⅱ E, and 2 cases were stage Ⅲ E. Histopathological grading revealed 6 cases of grade 1-2 and 3 cases of grade 3A. One case showed grade 3B in the lacrimal sac area and grade 1-2 in the conjunctiva. The predominant subtype was follicular in 4 cases, diffuse in 3 cases, and mixed in 2 cases. One case had a mixed subtype involving the lacrimal sac and conjunctiva. All patients expressed positivity for leukocyte differentiation antigens (CD) 20, CD21, and CD23. Nine cases were positive for CD10, with 1 case showing partial CD10 positivity. All patients were positive for B-cell lymphoma protein 6 (BCL-6), and 9 cases were positive for BCL-2. Specific markers CyclinD1 and Multiple Myeloma Oncogene Protein 1 (MUM-1) were negatively expressed in all cases. The Ki-67 proliferation index ranged from 10% to 90%. Molecular detection was performed in 7 patients, with none showing positive EBER in situ hybridization. However, 5 cases exhibited BCL2/IgH gene fusion. Among 7 patients with follow-up data, the median follow-up time was 17 (6, 34) months. Four patients achieved complete remission, 2 had partial remission, and 1 patient died due to lung infection. Conclusions: OAFL is a tumor originating from follicular center B-cells, characterized by positive expression of BCL-2, CD10, and BCL-6. It can involve the lacrimal gland, extraconal muscles, lacrimal sac, and conjunctiva. Patients generally have a favorable prognosis.
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Affiliation(s)
- J Li
- Tianjin Eye Hospital, Nankai University Affiliated Eye Hospital, Clinical College of Ophthalmology of Tianjin Medical University, Tianjin Eye Institute, Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin 300020, China
| | - Y C Wang
- Tianjin Eye Hospital, Nankai University Affiliated Eye Hospital, Clinical College of Ophthalmology of Tianjin Medical University, Tianjin Eye Institute, Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin 300020, China
| | - J Y Lin
- Tianjin Eye Hospital, Nankai University Affiliated Eye Hospital, Clinical College of Ophthalmology of Tianjin Medical University, Tianjin Eye Institute, Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin 300020, China
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Ali N, Dhere T, Bates JE, Lorenz J, Janopaul-Naylor J, Schlafstein A, Patel PR, Lin JY. The Use of Problem-Based Learning Curriculum to Increase Medical Student Exposure to Radiation Oncology. Int J Radiat Oncol Biol Phys 2023; 117:e502. [PMID: 37785579 DOI: 10.1016/j.ijrobp.2023.06.1748] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) In recent years, there has been a decline in the number of radiation oncology residency applicants. New techniques to recruit students to the field are necessary. Early exposure to oncology care in pre-clinical years may translate to increased student interest in oncology-related fields and improved understanding of oncologic treatment modalities. We propose that a cancer-specific problem-based learning (PBL) case will increase exposure to oncology during pre-clinical years. MATERIALS/METHODS A PBL case regarding pancreatic cancer was created by a radiation oncology resident/faculty member and the gastrointestinal course director for first-year medical students (n = 140) at a single institution. The one-hour small group case focused on oncologic work up, multi-disciplinary care and radiotherapy concepts. Students were provided with a case prompt and resources to review prior to the PBL session. Volunteer radiation oncology facilitators then guided students through the case to achieve desired learning objectives. Following the PBL, students completed an optional nine-question survey regarding their experience. RESULTS A total of 76 (54%) medical students completed the post-PBL survey. The majority (89%) of students reported that the case motivated them to learn more about oncology, and almost all (99%) noted improved understanding of the multidisciplinary nature of cancer care. 75 (99%) students reported increased understanding of how radiotherapy is delivered. 62 (82%) students reported increased motivation to learn about radiation oncology. 38 (50%) students reported that they plan to participate in an elective in oncology. 36 (47%) reported that they are considering pursuing an oncologic field. There was an increase in the number of subscribers to the Oncology Interest Group (43% increase from previous year) and positive feedback was noted from free-text responses from participants. CONCLUSION Integrating a cancer-specific PBL case facilitated by radiation oncology educators into the pre-clinical curriculum is an effective avenue to introduce oncology concepts and stimulate interest in oncology amongst first-year medical students.
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Affiliation(s)
- N Ali
- Department of Radiation Oncology, Winship Cancer Institute of Emory University, Atlanta, GA
| | - T Dhere
- Emory University School of Medicine, Atlanta, GA
| | - J E Bates
- Winship Cancer Institute of Emory University, Department of Radiation Oncology, Atlanta, GA
| | - J Lorenz
- Department of Radiation Oncology, Winship Cancer Institute of Emory University, Atlanta, GA
| | - J Janopaul-Naylor
- Department of Radiation Oncology, Winship Cancer Institute of Emory University, Atlanta, GA
| | - A Schlafstein
- Department of Radiation Oncology, Winship Cancer Institute, Emory University, Atlanta, GA
| | - P R Patel
- Department of Radiation Oncology, Winship Cancer Institute of Emory University, Atlanta, GA
| | - J Y Lin
- Glenn Family Breast Center, Winship Cancer Institute, Emory University, Atlanta, GA
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Wu YK, Su YA, Zhu LL, Li JT, Li Q, Dai YR, Lin JY, Li K, Si TM. Intrinsic functional connectivity correlates of cognitive deficits involving sustained attention and executive function in bipolar disorder. BMC Psychiatry 2023; 23:584. [PMID: 37568112 PMCID: PMC10416380 DOI: 10.1186/s12888-023-05083-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 08/07/2023] [Indexed: 08/13/2023] Open
Abstract
BACKGROUND The neural correlate of cognitive deficits in bipolar disorder (BD) is an issue that warrants further investigation. However, relatively few studies have examined the intrinsic functional connectivity (FC) underlying cognitive deficits involving sustained attention and executive function at both the region and network levels, as well as the different relationships between connectivity patterns and cognitive performance, in BD patients and healthy controls (HCs). METHODS Patients with BD (n = 59) and HCs (n = 52) underwent structural and resting-state functional magnetic resonance imaging and completed the Wisconsin Card Sorting Test (WCST), the continuous performance test and a clinical assessment. A seed-based approach was used to evaluate the intrinsic FC alterations in three core neurocognitive networks (the default mode network [DMN], the central executive network [CEN] and the salience network [SN]). Finally, we examined the relationship between FC and cognitive performance by using linear regression analyses. RESULTS Decreased FC was observed within the DMN, in the DMN-SN and DMN-CEN and increased FC was observed in the SN-CEN in BD. The alteration direction of regional FC was consistent with that of FC at the brain network level. Decreased FC between the left posterior cingulate cortex and right anterior cingulate cortex was associated with longer WCST completion time in BD patients (but not in HCs). CONCLUSIONS These findings emphasize the dominant role of the DMN in the psychopathology of BD and provide evidence that cognitive deficits in BD may be associated with aberrant FC between the anterior and posterior DMN.
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Affiliation(s)
- Yan-Kun Wu
- Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, 100191, China
| | - Yun-Ai Su
- Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, 100191, China
| | - Lin-Lin Zhu
- Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, 100191, China
| | - Ji-Tao Li
- Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, 100191, China
| | - Qian Li
- Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, 100191, China
| | - You-Ran Dai
- Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, 100191, China
| | - Jing-Yu Lin
- Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, 100191, China
| | - Ke Li
- PLA Strategic Support Force Characteristic Medical Center, Beijing, 100101, China
| | - Tian-Mei Si
- Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, 100191, China.
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11
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Li J, Wang YC, Chen LX, Lin JY. [Clinical and pathological analysis of 35 cases of ocular adnexal solitary fibrous tumor]. Zhonghua Yan Ke Za Zhi 2023; 59:207-212. [PMID: 36860108 DOI: 10.3760/cma.j.cn112142-20220407-00160] [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: 03/03/2023]
Abstract
Objective: To analyze the clinical and pathological characteristics and prognosis of 35 cases of solitary fibrous tumor of ocular adnexal (SFT). Methods: This was a retrospective case series study. The clinical data of 35 cases of ocular adnexal SFT was collected in Tianjin Eye Hospital from January 2000 to December 2020. The clinical manifestations, imaging examination results, pathological characteristics, treatment of patients were analyzed, and patients were followed up. All cases were classified according to the 2013 classification of World Health Organization of tumors of soft tissue and bone. Results: There were 21 males (60.0%) and 14 females (40.0%). The age range was 17 to 83 years, and the median age was 44 (35, 54)years. All patients were unilateral, with 23 (65.7%) in the right eye and 12 (34.3%) in the left eye. The course of disease ranged from 2 months to 11 years, with an a median duration of 12(6,36)months. Clinical manifestations included exophthalmos, limited eye movements, diplopia, and tearing. All patients underwent surgical treatment of complete resection of the tumor. Ocular adnexal SFT mostly occurred in the upper orbit (19 cases, 73.1%). On imaging examination, the tumor showed well-circumscribed space occupying lesion that heterogeneously enhanced with contrast, and abundant blood flow signals in the tumors. MRI showed isointensity or low signal on T1WI, and significantly enhanced on T2WI, presenting intermediate-to-high heterogeneous signals. The tumor diameter was 2.1 (1.5, 2.6) cm. There were 23 cases (65.7%) of classic subtype, 2 cases (5.7%) of giant cell subtype, 8 cases (22.9%) of myxoid subtype, and 2 cases (5.7%) of malignancy. Immunohistochemical staining showed that Vimentin, CD34 and STAT6 were positively expressed in all patients. Twenty-one cases (60.0%) showed positive expression of BCL-2, and Ki-67 positive index ranged from 1.0% to 10.0%. Tumors in this group were all low-risk according to the Demicco risk stratification. Follow-up was available for 25 patients with a duration of 2 years to 14 years and 7 months, and the median follow-up time was 88 (61, 124) months. Two patients relapsed, and no distant metastasis or death was observed. Conclusions: Ocular adnexal SFT mainly presents as a painless, slow-growing mass. And most of them are typical SFT. The imaging manifestations are varied Ocular adnexal SFT generally follows a benign course, with a good prognosis after complete excision. Recurrence could occur many years after surgery which requiring careful and long-term follow-up.
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Affiliation(s)
- J Li
- Tianjin Eye Hospital, Nankai University Affiliated Eye Hospital, Clinical College of Ophthalmology of Tianjin Medical University, Tianjin Eye Institute, Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin 300020, China
| | - Y C Wang
- Tianjin Eye Hospital, Nankai University Affiliated Eye Hospital, Clinical College of Ophthalmology of Tianjin Medical University, Tianjin Eye Institute, Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin 300020, China
| | - L X Chen
- Tianjin Eye Hospital, Nankai University Affiliated Eye Hospital, Clinical College of Ophthalmology of Tianjin Medical University, Tianjin Eye Institute, Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin 300020, China
| | - J Y Lin
- Tianjin Eye Hospital, Nankai University Affiliated Eye Hospital, Clinical College of Ophthalmology of Tianjin Medical University, Tianjin Eye Institute, Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin 300020, China
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12
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Wang YC, Li J, Lin JY. [The clinicopathological features of adult orbital xanthogranulomatous disease with lacrimal gland reactive lymphoid hyperplasia]. Zhonghua Yan Ke Za Zhi 2022; 58:682-687. [PMID: 36069088 DOI: 10.3760/cma.j.cn112142-20220128-00037] [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 investigate the clinicopathological features of adult orbital xanthogranulomatous disease (AOXGD) with lacrimal gland reactive lymphoid hyperplasia. Methods: Retrospective case series study. The clinical and pathological data of AOXGD cases diagnosed and treated in Tianjin Eye Hospital from January 2002 to December 2021 was reviewed, and the clinical characteristics, radiologic findings and pathological characteristics of periocular and lacrimal gland lesions of 5 cases were retrospectively analyzed. The expression of IgG4 and IgG protein in periocular and lacrimal gland lesions was detected by immunohistochemical staining, and the role of IgG4 in AOXGD was preliminarily studied. Results: There were four females and one male with an average age of 53.8 years (39 to 77 years). Among the five AOXGD cases, there were three cases of adult-onset xanthogranuloma, one case of adult-onset asthma and periocular xanthogranuloma, and one case of necrobiotic xanthogranuloma. All cases involved both eyes. The swelling of eyelids was observed in five cases, and the yellow or pale yellow eyelid skin was found in two cases. Imaging examinations showed the tumor mainly involved the eyelids, subcutaneous tissues, anterior orbit and lacrimal gland. A large number of foam cells and typical Touton giant cells were found in the periorbital lesions, accompanied by different degrees of fibrosis. The fibrinoid necrosis was detected in one case of necrobiotic xanthogranuloma. The lacrimal gland lesions showed different types of reactive lymphoid hyperplasia, including IgG4-related disease in two cases, follicular lymphoid hyperplasia in two cases and focal lymphoid hyperplasia in one case. IgG4 levels of periorbital and lacrimal gland lesions were elevated in four cases. Asthma and elevated serum IgG4 were found in one case of adult-onset periocular xanthogranuloma. Three patients underwent surgical resection and adjuvant hormone or immunosuppressive therapy, and two patients underwent simple surgical resection. The patients were followed up for 1.5 to 10.0 years, one patient was lost, and four patients had no recurrence. Conclusions: AOXGD with lacrimal gland reactive lymphoid hyperplasia is a group of rare diseases. The periorbital lesions of that are characterized by proliferation of foamy histiocytes and Touton giant cells, and the lacrimal gland lesions of that manifest as IgG4-related disease in some cases.
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Affiliation(s)
- Y C Wang
- Tianjin Eye Hospital, Nankai University Affiliated Eye Hospital, Clinical College of Ophthalmology of Tianjin Medical University, Tianjin Eye Institute, Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin 300020, China
| | - J Li
- Tianjin Eye Hospital, Nankai University Affiliated Eye Hospital, Clinical College of Ophthalmology of Tianjin Medical University, Tianjin Eye Institute, Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin 300020, China
| | - J Y Lin
- Tianjin Eye Hospital, Nankai University Affiliated Eye Hospital, Clinical College of Ophthalmology of Tianjin Medical University, Tianjin Eye Institute, Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin 300020, China
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13
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Su Y, Wang CH, Gao JF, Zhang FX, Lin JY, Zhang LY, Zhao Y. [Recommendations for diagnosis and treatment of psoriatic arthritis in China]. Zhonghua Nei Ke Za Zhi 2022; 61:883-892. [PMID: 35922212 DOI: 10.3760/cma.j.cn112138-20220103-00003] [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
Psoriatic arthritis is a chronic systemic autoimmune disease, characterized by psoriasis skin lesions and inflammation of the spine and joint. It has complicated clinical manifestations and individual variations. Nearly half of the patients will have joints erosion in two years, which is crippling. The severity of the skin and joint disease frequently do not correlate with each other. Currently, the understanding of the disease is insufficient in China with the lack of standardized diagnosis and treatment. Therefore, researchers from the Chinese Rheumatology Association formulated this specification based on the diagnosis and management experience together with guidelines at home and abroad. The specification summarizes the present situation of domestic diagnosis and treatment, aiming to standardize the diagnosis process and treatment protocols of psoriatic arthritis. Furthermore, it can reduce misdiagnosis and missed diagnosis, as well as improve the prognosis.
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Affiliation(s)
- Y Su
- Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing 100044, China
| | - C H Wang
- Department of Rheumatology, the Second Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - J F Gao
- Department of Rheumatology and Immunology, Shanxi Bethune Hospital, Third Hospital of Shanxi Medical University, Taiyuan 030032, China
| | - F X Zhang
- Department of Rheumatology and Clinical Immunology, Hebei Provincal People's Hospital, Shijiazhuang 050051, China
| | - J Y Lin
- Department of Rheumatology and Immunology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning 530021, China
| | - L Y Zhang
- Department of Rheumatology and Immunology, Shanxi Bethune Hospital, Third Hospital of Shanxi Medical University, Taiyuan 030032, China
| | - Yan Zhao
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, National Clinical Research Center for Dermatologic and Immunologic Diseases, Ministry of Science & Technology, State Key Laboratory of Complex Severe and Rare Diseases, Key Laboratory of Rheumatology and Clinial Immunology, Ministry of Education, Beijing 100730, China
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14
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Du YQ, Sha XY, Cheng J, Wang J, Lin JY, An WT, Pan W, Zhang LJ, Tao XN, Xu YF, Jia YL, Yang Z, Xiao P, Liu M, Sun JP, Yu X. Endogenous Lipid-GPR120 Signaling Modulates Pancreatic Islet Homeostasis to Different Extents. Diabetes 2022; 71:1454-1471. [PMID: 35472681 DOI: 10.2337/db21-0794] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 04/04/2022] [Indexed: 11/13/2022]
Abstract
Long-chain fatty acids (LCFAs) are not only energy sources but also serve as signaling molecules. GPR120, an LCFA receptor, plays key roles in maintaining metabolic homeostasis. However, whether endogenous ligand-GPR120 circuits exist and how such circuits function in pancreatic islets are unclear. Here, we found that endogenous GPR120 activity in pancreatic δ-cells modulated islet functions. At least two unsaturated LCFAs, oleic acid (OA) and linoleic acid (LA), were identified as GPR120 agonists within pancreatic islets. These two LCFAs promoted insulin secretion by inhibiting somatostatin secretion and showed bias activation of GPR120 in a model system. Compared with OA, LA exerted higher potency in promoting insulin secretion, which is dependent on β-arrestin2 function. Moreover, GPR120 signaling was impaired in the diabetic db/db model, and replenishing OA and LA improved islet function in both the db/db and streptozotocin-treated diabetic models. Consistently, the administration of LA improved glucose metabolism in db/db mice. Collectively, our results reveal that endogenous LCFA-GPR120 circuits exist and modulate homeostasis in pancreatic islets. The contributions of phenotype differences caused by different LCFA-GPR120 circuits within islets highlight the roles of fine-tuned ligand-receptor signaling networks in maintaining islet homeostasis.
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Affiliation(s)
- Ya-Qin Du
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Xue-Ying Sha
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Jie Cheng
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Jin Wang
- Department of Pharmacology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Jing-Yu Lin
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Wen-Tao An
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Wei Pan
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Li-Jun Zhang
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Xiao-Na Tao
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Yun-Fei Xu
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Ying-Li Jia
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Zhao Yang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Peng Xiao
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Ming Liu
- Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin, China
- Division of Metabolism, Endocrinology & Diabetes, University of Michigan Medical School, Ann Arbor, MI
| | - Jin-Peng Sun
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Xiao Yu
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
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Cheng J, Yang Z, Ge XY, Gao MX, Meng R, Xu X, Zhang YQ, Li RZ, Lin JY, Tian ZM, Wang J, Ning SL, Xu YF, Yang F, Gu JK, Sun JP, Yu X. Autonomous sensing of the insulin peptide by an olfactory G protein-coupled receptor modulates glucose metabolism. Cell Metab 2022; 34:240-255.e10. [PMID: 35108512 DOI: 10.1016/j.cmet.2021.12.022] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 11/15/2021] [Accepted: 12/22/2021] [Indexed: 12/16/2022]
Abstract
Along with functionally intact insulin, diabetes-associated insulin peptides are secreted by β cells. By screening the expression and functional characterization of olfactory receptors (ORs) in pancreatic islets, we identified Olfr109 as the receptor that detects insulin peptides. The engagement of one insulin peptide, insB:9-23, with Olfr109 diminished insulin secretion through Gi-cAMP signaling and promoted islet-resident macrophage proliferation through a β cell-macrophage circuit and a β-arrestin-1-mediated CCL2 pathway, as evidenced by β-arrestin-1-/- mouse models. Systemic Olfr109 deficiency or deficiency induced by Pdx1-Cre+/-Olfr109fl/fl specifically alleviated intra-islet inflammatory responses and improved glucose homeostasis in Akita- and high-fat diet (HFD)-fed mice. We further determined the binding mode between insB:9-23 and Olfr109. A pepducin-based Olfr109 antagonist improved glucose homeostasis in diabetic and obese mouse models. Collectively, we found that pancreatic β cells use Olfr109 to autonomously detect self-secreted insulin peptides, and this detection arrests insulin secretion and crosstalks with macrophages to increase intra-islet inflammation.
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Affiliation(s)
- Jie Cheng
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong 250012, China
| | - Zhao Yang
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong 250012, China; Advanced Medical Research Institute, Shandong University, Jinan, Shandong 250012, China
| | - Xiao-Yan Ge
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong 250012, China
| | - Ming-Xin Gao
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong 250012, China
| | - Ran Meng
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong 250012, China
| | - Xin Xu
- Research Center for Drug Metabolism, College of Life Sciences, Jilin University, Changchun, Jilin 130012, China
| | - Yu-Qi Zhang
- Research Center for Drug Metabolism, College of Life Sciences, Jilin University, Changchun, Jilin 130012, China
| | - Rui-Zhe Li
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong 250012, China
| | - Jing-Yu Lin
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong 250012, China
| | - Zhao-Mei Tian
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong 250012, China
| | - Jin Wang
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong 250012, China
| | - Shang-Lei Ning
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong 250012, China
| | - Yun-Fei Xu
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong 250012, China
| | - Fan Yang
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong 250012, China; Advanced Medical Research Institute, Shandong University, Jinan, Shandong 250012, China
| | - Jing-Kai Gu
- Research Center for Drug Metabolism, College of Life Sciences, Jilin University, Changchun, Jilin 130012, China
| | - Jin-Peng Sun
- Advanced Medical Research Institute, Shandong University, Jinan, Shandong 250012, China; Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing 100191, China.
| | - Xiao Yu
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong 250012, China.
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Su YA, Bousman CA, Liu Q, Lv XZ, Li JT, Lin JY, Yu X, Tian L, Si TM. Anxiety symptom remission is associated with genetic variation of PTPRZ1 among patients with major depressive disorder treated with escitalopram. Pharmacogenet Genomics 2021; 31:172-176. [PMID: 34081644 DOI: 10.1097/fpc.0000000000000437] [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] [Indexed: 01/10/2023]
Abstract
OBJECTIVES Genome-wide analyses of antidepressant response have suggested that genes initially associated with risk for schizophrenia may also serve as promising candidates for selective serotonin reuptake inhibitor (SSRI) efficacy. Protein tyrosine phosphatase, receptor-type, zeta-1 (PTPRZ1) has previously been shown to be associated with schizophrenia, but it has not been investigated as a predictor of antidepressant efficacy. The main objective of the study was to assess whether SSRI-mediated depressive and anxiety symptom remission in Chinese patients with major depressive disorder (MDD) are associated with specific PTPRZ1 variants. METHODS Two independent cohorts were investigated, the first sample (N = 344) received an SSRI (i.e. fluoxetine, sertraline, citalopram, escitalopram, fluvoxamine, or paroxetine) for 8 weeks. The second sample (N = 160) only received escitalopram for 8 weeks. Hamilton Depression and Hamilton Anxiety Rating Scale scores at 8-weeks post-baseline in both cohorts were used to determine remission status. Five PTPRZ1 variants (rs12154537, rs6466810, rs6466808, rs6955395, and rs1918031) were genotyped in both cohorts. RESULTS Anxiety symptom remission was robustly associated with PTPRZ1 rs12154537 (P = 0.004) and the G-G-G-G haplotype (rs12154537-rs6466810-rs6466808-rs6955395; P = 0.005) in cohort 2 but not cohort 1 (mixed SSRI use). Associations with depressive symptom remission did not survive correction for multiple testing. CONCLUSIONS These findings suggest that PTPRZ1 variants may serve as a marker of escitalopram-mediated anxiety symptom remission in MDD.
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Affiliation(s)
- Yun-Ai Su
- Clinical Psychopharmacology Division, Peking University Sixth Hospital & Peking University Institute of Mental Health & Key Laboratory of Mental Health, Ministry of Health (Peking University) & National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
| | - Chad A Bousman
- Departments of Medical Genetics, Psychiatry, and Physiology & Pharmacology, University of Calgary, Calgary, Canada
| | - Qi Liu
- Clinical Psychopharmacology Division, Peking University Sixth Hospital & Peking University Institute of Mental Health & Key Laboratory of Mental Health, Ministry of Health (Peking University) & National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
| | - Xiao-Zhen Lv
- Clinical Psychopharmacology Division, Peking University Sixth Hospital & Peking University Institute of Mental Health & Key Laboratory of Mental Health, Ministry of Health (Peking University) & National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
| | - Ji-Tao Li
- Clinical Psychopharmacology Division, Peking University Sixth Hospital & Peking University Institute of Mental Health & Key Laboratory of Mental Health, Ministry of Health (Peking University) & National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
| | - Jing-Yu Lin
- Clinical Psychopharmacology Division, Peking University Sixth Hospital & Peking University Institute of Mental Health & Key Laboratory of Mental Health, Ministry of Health (Peking University) & National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
| | - Xin Yu
- Clinical Psychopharmacology Division, Peking University Sixth Hospital & Peking University Institute of Mental Health & Key Laboratory of Mental Health, Ministry of Health (Peking University) & National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
| | - Li Tian
- Department of Physiology, Faculty of Medicine, Institute of Biomedicine and Translational Medicine, University of Tartu, Tartu, Estonia
| | - Tian-Mei Si
- Clinical Psychopharmacology Division, Peking University Sixth Hospital & Peking University Institute of Mental Health & Key Laboratory of Mental Health, Ministry of Health (Peking University) & National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
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17
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Lin JY, Yang Z, Yang C, Du JX, Yang F, Cheng J, Pan W, Zhang SJ, Yan X, Wang J, Wang J, Tie L, Yu X, Chen X, Sun JP. An ionic lock and a hydrophobic zipper mediate the coupling between an insect pheromone receptor BmOR3 and downstream effectors. J Biol Chem 2021; 297:101160. [PMID: 34480896 PMCID: PMC8477192 DOI: 10.1016/j.jbc.2021.101160] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 08/24/2021] [Accepted: 08/31/2021] [Indexed: 01/14/2023] Open
Abstract
Pheromone receptors (PRs) recognize specific pheromone compounds to guide the behavioral outputs of insects, which are the most diverse group of animals on earth. The activation of PRs is known to couple to the calcium permeability of their coreceptor (Orco) or putatively with G proteins; however, the underlying mechanisms of this process are not yet fully understood. Moreover, whether this transverse seven transmembrane domain (7TM)-containing receptor is able to couple to arrestin, a common effector for many conventional 7TM receptors, is unknown. Herein, using the PR BmOR3 from the silk moth Bombyx mori and its coreceptor BmOrco as a template, we revealed that an agonist-induced conformational change of BmOR3 was transmitted to BmOrco through transmembrane segment 7 from both receptors, resulting in the activation of BmOrco. Key interactions, including an ionic lock and a hydrophobic zipper, are essential in mediating the functional coupling between BmOR3 and BmOrco. BmOR3 also selectively coupled with Gi proteins, which was dispensable for BmOrco coupling. Moreover, we demonstrated that trans-7TM BmOR3 recruited arrestin in an agonist-dependent manner, which indicates an important role for BmOR3–BmOrco complex formation in ionotropic functions. Collectively, our study identified the coupling of G protein and arrestin to a prototype trans-7TM PR, BmOR3, and provided important mechanistic insights into the coupling of active PRs to their downstream effectors, including coreceptors, G proteins, and arrestin.
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Affiliation(s)
- Jing-Yu Lin
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Zhao Yang
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Chan Yang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Ji-Xiang Du
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Fan Yang
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Jie Cheng
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Wei Pan
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Shi-Jie Zhang
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Xu Yan
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Jia Wang
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Jin Wang
- Department of Pharmacology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Lu Tie
- Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Xiao Yu
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, China.
| | - Xin Chen
- Department of Medicinal Chemistry, School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou, Jiangsu, China.
| | - Jin-Peng Sun
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shandong University, Jinan, China; Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China.
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18
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Dong XQ, Lin JY, Wang PF, Li Y, Wang J, Li B, Liao J, Lu JX. Solid-State NMR Studies of the Succinate-Acetate Permease from Citrobacter Koseri in Liposomes and Native Nanodiscs. Life (Basel) 2021; 11:life11090908. [PMID: 34575058 PMCID: PMC8471396 DOI: 10.3390/life11090908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 08/26/2021] [Accepted: 08/27/2021] [Indexed: 11/24/2022] Open
Abstract
The succinate-acetate permease (SatP) is an anion channel with six transmembrane domains. It forms different oligomers, especially hexamers in the detergent as well as in the membrane. Solid-state NMR studies of SatP were carried out successfully on SatP complexes by reconstructing the protein into liposomes or retaining the protein in the native membrane of E. coli., where it was expressed. The comparison of 13C-13C 2D correlation spectra between the two samples showed great similarity, opening the possibility to further study the acetate transport mechanism of SatP in its native membrane environment. Solid-state NMR studies also revealed small chemical shift differences of SatP in the two different membrane systems, indicating the importance of the lipid environment in determining the membrane protein structures and dynamics. Combining different 2D SSNMR spectra, chemical shift assignments were made on some sites, consistent with the helical structures in the transmembrane domains. In the end, we pointed out the limitation in the sensitivity for membrane proteins with such a size, and also indicated possible ways to overcome it.
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Affiliation(s)
- Xing-Qi Dong
- School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China; (X.-Q.D.); (J.-Y.L.); (P.-F.W.); (Y.L.); (J.W.); (B.L.); (J.L.)
- State Key Laboratory of Molecular Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai 200031, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jing-Yu Lin
- School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China; (X.-Q.D.); (J.-Y.L.); (P.-F.W.); (Y.L.); (J.W.); (B.L.); (J.L.)
- State Key Laboratory of Molecular Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai 200031, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Peng-Fei Wang
- School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China; (X.-Q.D.); (J.-Y.L.); (P.-F.W.); (Y.L.); (J.W.); (B.L.); (J.L.)
- State Key Laboratory of Molecular Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai 200031, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yi Li
- School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China; (X.-Q.D.); (J.-Y.L.); (P.-F.W.); (Y.L.); (J.W.); (B.L.); (J.L.)
- State Key Laboratory of Molecular Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai 200031, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jian Wang
- School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China; (X.-Q.D.); (J.-Y.L.); (P.-F.W.); (Y.L.); (J.W.); (B.L.); (J.L.)
| | - Bing Li
- School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China; (X.-Q.D.); (J.-Y.L.); (P.-F.W.); (Y.L.); (J.W.); (B.L.); (J.L.)
| | - Jun Liao
- School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China; (X.-Q.D.); (J.-Y.L.); (P.-F.W.); (Y.L.); (J.W.); (B.L.); (J.L.)
| | - Jun-Xia Lu
- School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China; (X.-Q.D.); (J.-Y.L.); (P.-F.W.); (Y.L.); (J.W.); (B.L.); (J.L.)
- Correspondence:
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19
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Kwak R, Joyce C, Werchniak AE, Lin JY, Tsibris HC. Clinical and histologic features associated with lentigo maligna clearance after imiquimod treatment. J DERMATOL TREAT 2021; 33:1995-1999. [PMID: 34315342 DOI: 10.1080/09546634.2021.1962001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
BACKGROUND Imiquimod cream may be used as a non-surgical treatment for lentigo maligna or as adjuvant therapy following excision to decrease the risk of recurrence. OBJECTIVES To evaluate histologic and clinical factors associated with clinical clearance of lentigo maligna treated with imiquimod. METHODS We performed a retrospective review of all patients diagnosed with lentigo maligna and treated with imiquimod between 1997 and 2019 at our academic institution. RESULTS We observed clinical clearance in 93% (66/71) of participants who received adjuvant imiquimod following surgery and 79% (19/24) in the primary non-surgical treatment group over a median of 38 months of follow-up. In the adjuvant therapy group, positive surgical margins were associated with a decreased rate of clinical clearance when compared to cases with close (<1 mm) margins or background melanocytic dysplasia (83.3 vs. 100%, p = .01). The presence of an inflammatory response during treatment was associated with increased clearance (94.1 vs. 66.7%, p = .02). CONCLUSIONS Adjuvant imiquimod treatment may decrease LM recurrence rates in cases with background melanocytic dysplasia or close margins. LM cases with positive surgical margins need close clinical follow-up given higher recurrence rates.
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Affiliation(s)
- R Kwak
- Department of Dermatology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - C Joyce
- Department of Public Health Sciences, Loyola University Chicago, Chicago, IL, USA
| | | | - J Y Lin
- Department of Dermatology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - H C Tsibris
- Department of Dermatology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
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20
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Li J, Wang YC, Chen LX, Lin JY. [Clinical and pathological analysis of ocular adnexal diffuse large B-cell lymphoma]. Zhonghua Yan Ke Za Zhi 2021; 57:366-371. [PMID: 33915640 DOI: 10.3760/cma.j.cn112142-20200703-00446] [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 summarize the clinical and pathological characteristics of diffuse large B-cell lymphoma of ocular adnexal (OA-DLBCL). Methods: A retrospective case series study. Twenty-three cases of OA-DLBCL were collected in Tianjin Eye Hospital from January 2005 to December 2018. The clinical manifestations and imaging examination results were analyzed. The pathological characteristics and immune subtypes were analyzed with hematoxylin and eosin staining and immunohistochemistry. Eighteen patients completed the follow-up. Overall survival (OS) time was from the date of diagnosis to the date of death or the final follow-up (April 30, 2020). Clinical stages were analyzed by the Ann Arbor classification; Kaplan-Meier plots were used to visualize survival outcomes. The different risk groups were compared using Log-rank test. Results: There were 13 males and 10 females. The median age was 65 years (range, 43 to 82 years). Twenty-two patients had unilateral lymphoma (14 left eyes, 8 right eyes), and one patient had bilateral lymphoma. The OA-DLBCL was in the orbit in 14 patients, in the lacrimal gland in two patients, in both the lacrimal gland and the orbit in three patients, in both the lacrimal sac and the orbit in one patient, in the conjunctiva in one patient, in both the conjunctiva and the orbit in one patient, and in the skin of eyelids in one patient. Imaging examinations showed the tumors were of irregular soft tissue density. MRI showed the tumors were close to the extraocular muscles or ectocinerea. Centroblastic morphology was present in 21 specimens, and 2 specimens had immunoblastic morphology. Six patients were of germinal center B cell-like (GCB) type, and 17 were of non-GCB type. There were 2 patients with double expression of cellular-myelocytomatosis viral oncogene and B-cell lymphoma 2. The follow-up time ranged from 25 to 156 months, and the median follow-up time was 48 months. Five of them had primary OA-DLBCL, and 13 patients had secondary OA-DLBCL. Five patients were at the Ann Arbor clinical stage ⅠE, one was at stage ⅢE, and 12 were at stage ⅣE. During the follow-up, 8 patients survived, and 10 died. The 1-, 3-, and 5-year OS rates were 88.9%, 71.4% and 41.7%, respectively. Log-rank analysis indicated that the Ann Arbor clinical stage and age were related to the OS of OA-DLBCL (χ²=7.448, 8.804; both P<0.01). The gender, tumor size, molecular typing, Ki-67 index, and bone invasion were not related to the OS of OA-DLBCL (all P>0.05). Conclusions: OA-DLBCL mainly occurrs in the elderly population, unilaterally, and in the orbit. Most molecular types are non-GCB subtypes. The Ann Arbor clinical stage and age are associated with prognosis. (Chin J Ophthalmol, 2021, 57: 366-371).
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Affiliation(s)
- J Li
- Tianjin Eye Hospital, Tianjin Key Laboratory of Ophthalmology and Visual Science, Nankai University Affiliated Eye Hospital, Clinical College of Ophthalmology of Tianjin Medical University, Tianjin Eye Institute, Tianjin 300020, China
| | - Y C Wang
- Tianjin Eye Hospital, Tianjin Key Laboratory of Ophthalmology and Visual Science, Nankai University Affiliated Eye Hospital, Clinical College of Ophthalmology of Tianjin Medical University, Tianjin Eye Institute, Tianjin 300020, China
| | - L X Chen
- Tianjin Eye Hospital, Tianjin Key Laboratory of Ophthalmology and Visual Science, Nankai University Affiliated Eye Hospital, Clinical College of Ophthalmology of Tianjin Medical University, Tianjin Eye Institute, Tianjin 300020, China
| | - J Y Lin
- Tianjin Eye Hospital, Tianjin Key Laboratory of Ophthalmology and Visual Science, Nankai University Affiliated Eye Hospital, Clinical College of Ophthalmology of Tianjin Medical University, Tianjin Eye Institute, Tianjin 300020, China
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21
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Wu XL, Hu H, Dong XQ, Zhang J, Wang J, Schwieters CD, Liu J, Wu GX, Li B, Lin JY, Wang HY, Lu JX. The amyloid structure of mouse RIPK3 (receptor interacting protein kinase 3) in cell necroptosis. Nat Commun 2021; 12:1627. [PMID: 33712586 PMCID: PMC7955032 DOI: 10.1038/s41467-021-21881-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [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: 06/15/2020] [Accepted: 02/15/2021] [Indexed: 12/24/2022] Open
Abstract
RIPK3 amyloid complex plays crucial roles during TNF-induced necroptosis and in response to immune defense in both human and mouse. Here, we have structurally characterized mouse RIPK3 homogeneous self-assembly using solid-state NMR, revealing a well-ordered N-shaped amyloid core structure featured with 3 parallel in-register β-sheets. This structure differs from previously published human RIPK1/RIPK3 hetero-amyloid complex structure, which adopted a serpentine fold. Functional studies indicate both RIPK1-RIPK3 binding and RIPK3 amyloid formation are essential but not sufficient for TNF-induced necroptosis. The structural integrity of RIPK3 fibril with three β-strands is necessary for signaling. Molecular dynamics simulations with a mouse RIPK1/RIPK3 model indicate that the hetero-amyloid is less stable when adopting the RIPK3 fibril conformation, suggesting a structural transformation of RIPK3 from RIPK1-RIPK3 binding to RIPK3 amyloid formation. This structural transformation would provide the missing link connecting RIPK1-RIPK3 binding to RIPK3 homo-oligomer formation in the signal transduction. Receptor Interacting Protein Kinase 3 (RIPK3) has a key role in TNF-induced necroptosis. Here, the authors combine solid state NMR measurements, MD simulations and cell based assays to characterize mouse RIPK3 and they present the structure of the RIPK3 amyloid core.
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Affiliation(s)
- Xia-Lian Wu
- School of Life Science and Technology, ShanghaiTech University, Shanghai, PR China.,CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, PR China.,University of Chinese Academy of Sciences, Beijing, PR China
| | - Hong Hu
- School of Life Science and Technology, ShanghaiTech University, Shanghai, PR China.,CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, PR China.,University of Chinese Academy of Sciences, Beijing, PR China
| | - Xing-Qi Dong
- School of Life Science and Technology, ShanghaiTech University, Shanghai, PR China.,CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, PR China.,University of Chinese Academy of Sciences, Beijing, PR China
| | - Jing Zhang
- School of Life Science and Technology, ShanghaiTech University, Shanghai, PR China.,CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, PR China.,University of Chinese Academy of Sciences, Beijing, PR China
| | - Jian Wang
- School of Life Science and Technology, ShanghaiTech University, Shanghai, PR China
| | - Charles D Schwieters
- Laboratory of Imaging Sciences, Office of Intramural Research, Center for Information Technology, National Institutes of Health, Bethesda, MD, USA
| | - Jing Liu
- School of Life Science and Technology, ShanghaiTech University, Shanghai, PR China.,CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, PR China.,University of Chinese Academy of Sciences, Beijing, PR China
| | - Guo-Xiang Wu
- School of Life Science and Technology, ShanghaiTech University, Shanghai, PR China.,CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, PR China.,University of Chinese Academy of Sciences, Beijing, PR China
| | - Bing Li
- School of Life Science and Technology, ShanghaiTech University, Shanghai, PR China
| | - Jing-Yu Lin
- School of Life Science and Technology, ShanghaiTech University, Shanghai, PR China.,CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, PR China.,University of Chinese Academy of Sciences, Beijing, PR China
| | - Hua-Yi Wang
- School of Life Science and Technology, ShanghaiTech University, Shanghai, PR China.
| | - Jun-Xia Lu
- School of Life Science and Technology, ShanghaiTech University, Shanghai, PR China.
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22
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Zhang ZQ, Wu WW, Chen JD, Zhang GY, Lin JY, Wu YK, Zhang Y, Su YA, Li JT, Si TM. Weighted Gene Coexpression Network Analysis Reveals Essential Genes and Pathways in Bipolar Disorder. Front Psychiatry 2021; 12:553305. [PMID: 33815158 PMCID: PMC8010671 DOI: 10.3389/fpsyt.2021.553305] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 02/24/2021] [Indexed: 11/13/2022] Open
Abstract
Bipolar disorder (BD) is a major and highly heritable mental illness with severe psychosocial impairment, but its etiology and pathogenesis remains unclear. This study aimed to identify the essential pathways and genes involved in BD using weighted gene coexpression network analysis (WGCNA), a bioinformatic method studying the relationships between genes and phenotypes. Using two available BD gene expression datasets (GSE5388, GSE5389), we constructed a gene coexpression network and identified modules related to BD. The analyses of Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathways were performed to explore functional enrichment of the candidate modules. A protein-protein interaction (PPI) network was further constructed to identify the potential hub genes. Ten coexpression modules were identified from the top 5,000 genes in 77 samples and three modules were significantly associated with BD, which were involved in several biological processes (e.g., the actin filament-based process) and pathways (e.g., MAPK signaling). Four genes (NOTCH1, POMC, NGF, and DRD2) were identified as candidate hub genes by PPI analysis and CytoHubba. Finally, we carried out validation analyses in a separate dataset, GSE12649, and verified NOTCH1 as a hub gene and the involvement of several biological processes such as actin filament-based process and axon development. Taken together, our findings revealed several candidate pathways and genes (NOTCH1) in the pathogenesis of BD and call for further investigation for their potential research values in BD diagnosis and treatment.
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Affiliation(s)
- Zhen-Qing Zhang
- Xiamen Xianyue Hospital, Xiamen, China.,Peking University Sixth Hospital, Peking University Institute of Mental Health, Peking University, Beijing, China
| | | | | | - Guang-Yin Zhang
- Department of Psychosomatic Medicine, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Jing-Yu Lin
- Peking University Sixth Hospital, Peking University Institute of Mental Health, Peking University, Beijing, China
| | - Yan-Kun Wu
- Peking University Sixth Hospital, Peking University Institute of Mental Health, Peking University, Beijing, China
| | - Yu Zhang
- Institute of Mental Health, Hebei North University, Hebei, China
| | - Yun-Ai Su
- Peking University Sixth Hospital, Peking University Institute of Mental Health, Peking University, Beijing, China
| | - Ji-Tao Li
- Peking University Sixth Hospital, Peking University Institute of Mental Health, Peking University, Beijing, China
| | - Tian-Mei Si
- Peking University Sixth Hospital, Peking University Institute of Mental Health, Peking University, Beijing, China
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23
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Zhang GY, Liu Q, Lin JY, Yan L, Shen L, Si TM. Mental health outcomes among patients from Fangcang shelter hospitals exposed to coronavirus disease 2019: An observational cross-sectional study. Chronic Dis Transl Med 2020; 7:57-64. [PMID: 33318879 PMCID: PMC7723755 DOI: 10.1016/j.cdtm.2020.12.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [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: 08/14/2020] [Indexed: 12/23/2022] Open
Abstract
Background The coronavirus disease 2019 (COVID-19) is not only attacking physical health, but it is also increasing psychological suffering. This study aimed to observe the impact of the COVID-19 pandemic on mental health outcomes among patients with mild to moderate illness in Fangcang shelter hospitals. Methods We conducted an observational, cross-sectional study of 129 patients with mild to moderate illness from Jiangxia Fangcang shelter hospitals in Wuhan, China. The participants were assessed by quantifying their symptoms of depression, anxiety, insomnia, and stressful life events and analyzing potential risk factors associated with these symptoms. Using correlation analysis, we examined associations between exposure to COVID-19 and subsequent psychological distress in response to the outbreak. Results In total, 49.6% of participants had depressive or anxiety symptoms. The depressive and anxiety symptoms were highly related to sleep disturbances and hypochondriasis (all r > 0.50, P < 0.01). The impact of the event was positively related to depressive symptoms, anxiety symptoms, sleep disturbances, hypochondriasis and life events (all r > 0.35, P < 0.01) but was negatively related to psychological resilience (r = −0.41, P < 0.01). The presence of the COVID-19 infection in this setting was associated with increased anxiety, depression and stress levels, and decreased sleep quality, and seriously affected patients’ quality of life as well as adversely affecting the course and prognosis of physical diseases. Conclusion The sleep quality, anxiety, and depression of COVID-19 patients in Fangcang shelter hospitals were significantly related to the impact of the epidemic.
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Affiliation(s)
- Guang-Yin Zhang
- Department of Psychosomatic Medicine, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
- Peking University Sixth Hospital & Peking University Institute of Mental Health, Beijing 100191, China
| | - Qi Liu
- Peking University Sixth Hospital & Peking University Institute of Mental Health, Beijing 100191, China
- NHC Key Laboratory of Mental Health (Peking University) & National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing 100191, China
| | - Jing-Yu Lin
- Peking University Sixth Hospital & Peking University Institute of Mental Health, Beijing 100191, China
- NHC Key Laboratory of Mental Health (Peking University) & National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing 100191, China
| | - Lin Yan
- Department of Gastroenterology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Li Shen
- Department of Psychosomatic Medicine, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Tian-Mei Si
- Peking University Sixth Hospital & Peking University Institute of Mental Health, Beijing 100191, China
- NHC Key Laboratory of Mental Health (Peking University) & National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing 100191, China
- Corresponding author. Peking University Sixth Hospital/Institute of Mental Health, No. 51 Hua Yuan Bei Road, Haidian District, Beijing, 100191, China.
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24
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Pu ZQ, Liu D, Lobo Mouguegue HPP, Jin CW, Sadiq E, Qin DD, Yu TF, Zong C, Chen JC, Zhao RX, Lin JY, Cheng J, Yu X, Li X, Zhang YC, Liu YT, Guan QB, Wang XD. NR4A1 counteracts JNK activation incurred by ER stress or ROS in pancreatic β-cells for protection. J Cell Mol Med 2020; 24:14171-14183. [PMID: 33124187 PMCID: PMC7754045 DOI: 10.1111/jcmm.16028] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 09/08/2020] [Accepted: 10/05/2020] [Indexed: 12/20/2022] Open
Abstract
Sustained hyperglycaemia and hyperlipidaemia incur endoplasmic reticulum stress (ER stress) and reactive oxygen species (ROS) overproduction in pancreatic β‐cells. ER stress or ROS causes c‐Jun N‐terminal kinase (JNK) activation, and the activated JNK triggers apoptosis in different cells. Nuclear receptor subfamily 4 group A member 1 (NR4A1) is an inducible multi‐stress response factor. The aim of this study was to explore the role of NR4A1 in counteracting JNK activation induced by ER stress or ROS and the related mechanism. qPCR, Western blotting, dual‐luciferase reporter and ChIP assays were applied to detect gene expression or regulation by NR4A1. Immunofluorescence was used to detect a specific protein expression in β‐cells. Our data showed that NR4A1 reduced the phosphorylated JNK (p‐JNK) in MIN6 cells encountering ER stress or ROS and reduced MKK4 protein in a proteasome‐dependent manner. We found that NR4A1 increased the expression of cbl‐b (an E3 ligase); knocking down cbl‐b expression increased MKK4 and p‐JNK levels under ER stress or ROS conditions. We elucidated that NR4A1 enhanced the transactivation of cbl‐b promoter by physical association. We further confirmed that cbl‐b expression in β‐cells was reduced in NR4A1‐knockout mice compared with WT mice. NR4A1 down‐regulates JNK activation by ER stress or ROS in β‐cells via enhancing cbl‐b expression.
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Affiliation(s)
- Ze-Qing Pu
- Department of Cell Biology, Shandong University School of Medicine, Jinan, China
| | - Dong Liu
- Department of Cell Biology, Shandong University School of Medicine, Jinan, China
| | | | - Cheng-Wen Jin
- Department of Cell Biology, Shandong University School of Medicine, Jinan, China
| | - Esha Sadiq
- Department of Cell Biology, Shandong University School of Medicine, Jinan, China
| | - Dan-Dan Qin
- Department of Cell Biology, Shandong University School of Medicine, Jinan, China
| | - Tian-Fu Yu
- Department of Cell Biology, Shandong University School of Medicine, Jinan, China
| | - Chen Zong
- Department of Cell Biology, Shandong University School of Medicine, Jinan, China
| | - Ji-Cui Chen
- Blood Transfusion Department, Qilu Hospital of Shandong University, Jinan, China
| | - Ru-Xing Zhao
- Department of Endocrinology, Qilu Hospital of Shandong University, Jinan, China
| | - Jing-Yu Lin
- Department of Physiology, Shandong University School of Medicine, Jinan, China
| | - Jie Cheng
- Department of Physiology, Shandong University School of Medicine, Jinan, China
| | - Xiao Yu
- Department of Physiology, Shandong University School of Medicine, Jinan, China.,Key Laboratory of Protein Sciences for Chronic Degenerative Diseases in Universities of Shandong (Shandong University), Jinan, China
| | - Xia Li
- Department of Cell Biology, Shandong University School of Medicine, Jinan, China
| | - Yu-Chao Zhang
- Department of Endocrinology, Qingdao Municipal Hospital, Qingdao, China
| | - Yuan-Tao Liu
- Department of Endocrinology, Qingdao Municipal Hospital, Qingdao, China
| | - Qing-Bo Guan
- Department of Endocrinology, Shandong Provincial Hospital, Affiliated to Shandong University, Jinan, China
| | - Xiang-Dong Wang
- Department of Cell Biology, Shandong University School of Medicine, Jinan, China.,Key Laboratory of Protein Sciences for Chronic Degenerative Diseases in Universities of Shandong (Shandong University), Jinan, China
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25
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Su YA, Lin JY, Liu Q, Lv XZ, Wang G, Wei J, Zhu G, Chen QL, Tian HJ, Zhang KR, Wang XY, Zhang N, Wang Y, Haroon E, Yu X, Si TM. Associations among serum markers of inflammation, life stress and suicide risk in patients with major depressive disorder. J Psychiatr Res 2020; 129:53-60. [PMID: 32570089 DOI: 10.1016/j.jpsychires.2020.06.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [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: 03/13/2020] [Revised: 05/05/2020] [Accepted: 06/03/2020] [Indexed: 01/10/2023]
Abstract
BACKGROUND Patients with major depressive disorder (MDD) are at high risk for suicide. As the worst outcome of MDD and common self-concealment in patients with suicide risk, studies of biomarkers may provide useful tools for suicide prevention and treatment. METHODS This study recruited 168 patients with MDD from the Objective Diagnostic Markers and Personalized Intervention in MDD patients (ODMPIM), including 50 patients with suicide risk. Based on previous evidence and hypothesis, 23 targeted serum biomarkers involving immune-inflammation, neurotrophins, hypothalamic-pituitary-adrenal (HPA) axis and metabolism, were measured. We used path analysis and principal components analysis (PCA) to clarify the associations among serum biomarkers, childhood adversities, adulthood life events, severity of depression and suicide risk. RESULTS We identified that patients with suicide risk had a higher level of inflammatory markers in serum than patients without suicide risk (P < 0.001), especially chemokine (C-X-C motif) ligand 1 (CXCL-1). After using the Bonferroni correction, there were no differences in biomarkers related to neurotrophins, HPA-axis and metabolism. In addition, a higher proportion of patients with suicide risk had adulthood adversity (assessed by Life Events Scale) (P = 0.003). Intriguingly, path analysis demonstrated that the association between adulthood adversity and suicide risk mainly depended on severity of depression and inflammatory index. CONCLUSION This study highlights the possible role of inflammation involved in suicide risk of MDD patients. Inflammatory markers have the potential for early identification and then reducing suicidal behaviors or becoming novel treatment targets in suicide risk management.
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Affiliation(s)
- Yun-Ai Su
- Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
| | - Jing-Yu Lin
- Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
| | - Qi Liu
- Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
| | - Xiao-Zhen Lv
- Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
| | - Gang Wang
- Beijing Anding Hospital, Capital Medical University, Beijing, China
| | - Jing Wei
- Peking Union Medical College (PUMC), Beijing, China
| | - Gang Zhu
- The First Hospital of China Medical University, Shenyang, China
| | | | | | - Ke-Rang Zhang
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Xue-Yi Wang
- The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Nan Zhang
- Tianjin Medical University General Hospital, Tianjin, China
| | - Ying Wang
- The 984th Hospital of PLA, Beijing, China
| | - Ebrahim Haroon
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA, USA
| | - Xin Yu
- Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China.
| | - Tian-Mei Si
- Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China.
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26
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Liu Q, He QT, Lyu X, Yang F, Zhu ZL, Xiao P, Yang Z, Zhang F, Yang ZY, Wang XY, Sun P, Wang QW, Qu CX, Gong Z, Lin JY, Xu Z, Song SL, Huang SM, Guo SC, Han MJ, Zhu KK, Chen X, Kahsai AW, Xiao KH, Kong W, Li FH, Ruan K, Li ZJ, Yu X, Niu XG, Jin CW, Wang J, Sun JP. DeSiphering receptor core-induced and ligand-dependent conformational changes in arrestin via genetic encoded trimethylsilyl 1H-NMR probe. Nat Commun 2020; 11:4857. [PMID: 32978402 PMCID: PMC7519161 DOI: 10.1038/s41467-020-18433-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 08/12/2020] [Indexed: 01/11/2023] Open
Abstract
Characterization of the dynamic conformational changes in membrane protein signaling complexes by nuclear magnetic resonance (NMR) spectroscopy remains challenging. Here we report the site-specific incorporation of 4-trimethylsilyl phenylalanine (TMSiPhe) into proteins, through genetic code expansion. Crystallographic analysis revealed structural changes that reshaped the TMSiPhe-specific amino-acyl tRNA synthetase active site to selectively accommodate the trimethylsilyl (TMSi) group. The unique up-field 1H-NMR chemical shift and the highly efficient incorporation of TMSiPhe enabled the characterization of multiple conformational states of a phospho-β2 adrenergic receptor/β-arrestin-1(β-arr1) membrane protein signaling complex, using only 5 μM protein and 20 min of spectrum accumulation time. We further showed that extracellular ligands induced conformational changes located in the polar core or ERK interaction site of β-arr1 via direct receptor transmembrane core interactions. These observations provided direct delineation and key mechanism insights that multiple receptor ligands were able to induce distinct functionally relevant conformational changes of arrestin.
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Affiliation(s)
- Qi Liu
- Institute of Biophysics, Chinese Academy of Sciences, 15 Datun Road, Chaoyang district, Beijing, 100101, China
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology, School of Basic Medical Sciences, Cheeloo college of Medicine, Shandong University, 44 Wenhua Xi Road, Jinan, Shandong, 250012, China
| | - Qing-Tao He
- Institute of Biophysics, Chinese Academy of Sciences, 15 Datun Road, Chaoyang district, Beijing, 100101, China
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo college of Medicine, Shandong University, 44 Wenhua Xi Road, Jinan, 250012, Shandong, China
- Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University, 15 Xueyuan Road, Haidian District, Beijing, 100191, China
| | - Xiaoxuan Lyu
- Institute of Biophysics, Chinese Academy of Sciences, 15 Datun Road, Chaoyang district, Beijing, 100101, China
| | - Fan Yang
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology, School of Basic Medical Sciences, Cheeloo college of Medicine, Shandong University, 44 Wenhua Xi Road, Jinan, Shandong, 250012, China
- Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University, 15 Xueyuan Road, Haidian District, Beijing, 100191, China
| | - Zhong-Liang Zhu
- School of Life Sciences, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, China
| | - Peng Xiao
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo college of Medicine, Shandong University, 44 Wenhua Xi Road, Jinan, 250012, Shandong, China
- Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University, 15 Xueyuan Road, Haidian District, Beijing, 100191, China
| | - Zhao Yang
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology, School of Basic Medical Sciences, Cheeloo college of Medicine, Shandong University, 44 Wenhua Xi Road, Jinan, Shandong, 250012, China
- Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University, 15 Xueyuan Road, Haidian District, Beijing, 100191, China
| | - Feng Zhang
- Institute of Biophysics, Chinese Academy of Sciences, 15 Datun Road, Chaoyang district, Beijing, 100101, China
| | - Zhao-Ya Yang
- Institute of Biophysics, Chinese Academy of Sciences, 15 Datun Road, Chaoyang district, Beijing, 100101, China
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo college of Medicine, Shandong University, 44 Wenhua Xi Road, Jinan, 250012, Shandong, China
| | - Xiao-Yan Wang
- Institute of Biophysics, Chinese Academy of Sciences, 15 Datun Road, Chaoyang district, Beijing, 100101, China
| | - Peng Sun
- Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, 30 Xiaohongshan Road, Wuchang District, Wuhan, Hubei, 430071, China
| | - Qian-Wen Wang
- Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, 30 Xiaohongshan Road, Wuchang District, Wuhan, Hubei, 430071, China
| | - Chang-Xiu Qu
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo college of Medicine, Shandong University, 44 Wenhua Xi Road, Jinan, 250012, Shandong, China
- Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University, 15 Xueyuan Road, Haidian District, Beijing, 100191, China
| | - Zheng Gong
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo college of Medicine, Shandong University, 44 Wenhua Xi Road, Jinan, 250012, Shandong, China
| | - Jing-Yu Lin
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology, School of Basic Medical Sciences, Cheeloo college of Medicine, Shandong University, 44 Wenhua Xi Road, Jinan, Shandong, 250012, China
| | - Zhen Xu
- Institute of Biophysics, Chinese Academy of Sciences, 15 Datun Road, Chaoyang district, Beijing, 100101, China
| | - Shao-le Song
- Institute of Biophysics, Chinese Academy of Sciences, 15 Datun Road, Chaoyang district, Beijing, 100101, China
| | - Shen-Ming Huang
- Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University, 15 Xueyuan Road, Haidian District, Beijing, 100191, China
| | - Sheng-Chao Guo
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo college of Medicine, Shandong University, 44 Wenhua Xi Road, Jinan, 250012, Shandong, China
- Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University, 15 Xueyuan Road, Haidian District, Beijing, 100191, China
| | - Ming-Jie Han
- Institute of Biophysics, Chinese Academy of Sciences, 15 Datun Road, Chaoyang district, Beijing, 100101, China
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 Xiqi Road, Airport Economic Zone, Dongli District, Tianjin, 300308, China
| | - Kong-Kai Zhu
- School of Biological Science and Technology, University of Jinan, 336 Nanxinzhuangxi Road, Shizhong District, Jinan, 250022, China
| | - Xin Chen
- Department of Medicinal Chemistry, School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou, Jiangsu, 213164, China
| | - Alem W Kahsai
- Duke University, School of Medicine, Durham, NC, 27705, USA
| | - Kun-Hong Xiao
- Department of Pharmacology and Chemical Biology, School of Medicine, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | - Wei Kong
- Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University, 15 Xueyuan Road, Haidian District, Beijing, 100191, China
| | - Fa-Hui Li
- Institute of Biophysics, Chinese Academy of Sciences, 15 Datun Road, Chaoyang district, Beijing, 100101, China
| | - Ke Ruan
- Hefei National Laboratory for Physical Science at the Microscale, University of Science and Technology of China, 443 Huangshan Road, Hefei, Anhui, 230027, China
| | - Zi-Jian Li
- Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University, 15 Xueyuan Road, Haidian District, Beijing, 100191, China
| | - Xiao Yu
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology, School of Basic Medical Sciences, Cheeloo college of Medicine, Shandong University, 44 Wenhua Xi Road, Jinan, Shandong, 250012, China
| | - Xiao-Gang Niu
- Beijing Nuclear Magnetic Resonance Center, College of Chemistry and Molecular Engineering, School of Life Sciences, Peking University, Beijing, 100084, China
| | - Chang-Wen Jin
- Beijing Nuclear Magnetic Resonance Center, College of Chemistry and Molecular Engineering, School of Life Sciences, Peking University, Beijing, 100084, China
| | - Jiangyun Wang
- Institute of Biophysics, Chinese Academy of Sciences, 15 Datun Road, Chaoyang district, Beijing, 100101, China.
- College of Life Sciences and School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Jin-Peng Sun
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo college of Medicine, Shandong University, 44 Wenhua Xi Road, Jinan, 250012, Shandong, China.
- Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University, 15 Xueyuan Road, Haidian District, Beijing, 100191, China.
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27
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Zhao Y, Hui JW, Yang LL, Zhao H, Lin JY, Pan Y. [Clinical and pathological analysis of 64 patients with primary neoplasms of the lacrimal drainage system]. Zhonghua Yan Ke Za Zhi 2020; 56:364-369. [PMID: 32450669 DOI: 10.3760/cma.j.cn112142-20190414-00216] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the pathological classification and age distribution of primary neoplasms of the lacrimal drainage system. Methods: Retrospective case series study. A total of 64 patients (65 eyes) were diagnosed with primary neoplasms of the lacrimal drainage system and received surgery at Tianjin Eye Hospital from January 2006 to December 2016. All the clinical data of the patients were analyzed, including gender, diseased eye, age, clinical manifestations, composition of benign and malignant masses, and prognosis. The histopathological composition and age distribution of patients with primary lacrimal mass, lacrimal duct mass and lacrimal sac mass were analyzed according to the different diseased sites. Results: Twenty-three patients (24 eyes) were male, and 41 patients (41 eyes) were female. The right eye was involved in 36 patients, the left eye in 27 patients, and both eyes in one patient. The age at diagnosis ranged from 12 to 78 years old [mean, (46±4) years]. The course of disease was (13.1±4.2) months, ranging from 1 month to 7 years. The chief complaint was tear discharge in 43 patients, tumor in 19 patients, and abscess discharge in 2 patients. There were 29 patients with angular displacement and 21 patients with swelling pain. There were 51 patients with benign lesions, 4 with borderline lesions, and 9 with malignantlesions. These neoplasms consisted of primary peripunctal neoplasms in 17 patients, primary canalicular neoplasms in 2 patients, and primary lacrimal sac neoplasms in 45 patients. All primary peripunctal neoplasms (17 cases) were benign, among which nevi (10 cases) occupied the first place. All primary canalicular neoplasms (2 cases) were benign, there were 1 case of epidermoid cysts and 1 case of degenerative disease. Among the primary benign lacrimal sac masses (32 cases), mucous epithelial cysts (9 cases), dermoid cysts (6 cases), and epidermoid cysts (6 cases) occupied the first three places. Among the primary borderlin lacrimal sac masses (4 cases), there were 2 cases of giant cell tumor of soft tissue, 1 case of solitary fibrous tumor, and 1 case of inflammatory myofibroblastic tumor. The primary malignant mass of lacrimal sac (9 cases) was dominated by squamous cell carcinoma (3 cases). In terms of age distribution, the patients with primary peripunctal mass were mainly in the group of 40-59 years old (14 cases). The primary benign mass of lacrimal sac mainly occurred in the group of less than 40 years old (15 cases) and the group of 40-59 years old (11 cases). The patients with primary lacrimal sac borderline and malignant masses were all in the groups of over 40 years old. A total of 49 patients were followed up for 27 months to 16 years. The average follow-up time was (57.2±3.8) months. Lacrimal sac transitional cell carcinoma relapsed 7 months after surgery in one patient, and lacrimal sac melanoma relapsed 1 year after surgery in one patient. The patients did not relapse in 24 months and 38 months after surgery respectively. There were no recurrence of other cases. Conclusions: Primary peripunctal neoplasms are mostly characterized with benign lesions, among which nevi are most common. Mucous epithelial cysts, epidermoid cysts, and dermoid cysts are the major benign lacrimal sac neoplasms. Squamous cell carcinomas are the most common malignant lacrimal sac neoplasms. The malignant tumor of lacrimal sac often occurs in the middle-aged and elderly patients. (Chin J Ophthalmol, 2020, 56: 364-369).
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Affiliation(s)
- Y Zhao
- Tianjin Eye Hospital, Tianjin Key Lab. of Ophthalmology and Visual Science, Nankai University Affiliated Eye Hospital, Clinical College of Ophthalmology of Tianjin Medical University, Tianjin Eye Institute, Tianjin 300020, China
| | - J W Hui
- Tianjin Eye Hospital, Tianjin Key Lab. of Ophthalmology and Visual Science, Nankai University Affiliated Eye Hospital, Clinical College of Ophthalmology of Tianjin Medical University, Tianjin Eye Institute, Tianjin 300020, China
| | - L L Yang
- Tianjin Eye Hospital, Tianjin Key Lab. of Ophthalmology and Visual Science, Nankai University Affiliated Eye Hospital, Clinical College of Ophthalmology of Tianjin Medical University, Tianjin Eye Institute, Tianjin 300020, China
| | - H Zhao
- Tianjin Eye Hospital, Tianjin Key Lab. of Ophthalmology and Visual Science, Nankai University Affiliated Eye Hospital, Clinical College of Ophthalmology of Tianjin Medical University, Tianjin Eye Institute, Tianjin 300020, China
| | - J Y Lin
- Tianjin Eye Hospital, Tianjin Key Lab. of Ophthalmology and Visual Science, Nankai University Affiliated Eye Hospital, Clinical College of Ophthalmology of Tianjin Medical University, Tianjin Eye Institute, Tianjin 300020, China
| | - Y Pan
- Tianjin Eye Hospital, Tianjin Key Lab. of Ophthalmology and Visual Science, Nankai University Affiliated Eye Hospital, Clinical College of Ophthalmology of Tianjin Medical University, Tianjin Eye Institute, Tianjin 300020, China
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Lin JY, Cheng J, Du YQ, Pan W, Zhang Z, Wang J, An J, Yang F, Xu YF, Lin H, An WT, Wang J, Yang Z, Chai RJ, Sha XY, Hu HL, Sun JP, Yu X. In vitro expansion of pancreatic islet clusters facilitated by hormones and chemicals. Cell Discov 2020; 6:20. [PMID: 32284878 PMCID: PMC7136205 DOI: 10.1038/s41421-020-0159-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Accepted: 03/08/2020] [Indexed: 01/04/2023] Open
Abstract
Tissue regeneration, such as pancreatic islet tissue propagation in vitro, could serve as a promising strategy for diabetes therapy and personalised drug testing. However, such a strategy has not been realised yet. Propagation could be divided into two steps, in vitro expansion and repeated passaging. Even the first step of the in vitro islet expansion has not been achieved to date. Here, we describe a method that enables the expansion of islet clusters isolated from pregnant mice or wild-type rats by employing a combination of specific regeneration factors and chemical compounds in vitro. The expanded islet clusters expressed insulin, glucagon and somatostatin, which are markers corresponding to pancreatic β cells, α cells and δ cells, respectively. These different types of cells grouped together, were spatially organised and functioned similarly to primary islets. Further mechanistic analysis revealed that forskolin in our recipe contributed to renewal and regeneration, whereas exendin-4 was essential for preserving islet cell identity. Our results provide a novel method for the in vitro expansion of islet clusters, which is an important step forward in developing future protocols and media used for islet tissue propagation in vitro. Such method is important for future regenerative diabetes therapies and personalised medicines using large amounts of pancreatic islets derived from the same person.
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Affiliation(s)
- Jing-Yu Lin
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Shandong University, 250012 Jinan, Shandong China
| | - Jie Cheng
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Shandong University, 250012 Jinan, Shandong China
| | - Ya-Qin Du
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, 100191 Beijing, China
| | - Wei Pan
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Shandong University, 250012 Jinan, Shandong China
| | - Zhong Zhang
- Key Laboratory for Developmental Genes and Human Disease of the Ministry of Education, School of Life Science and Technology, Southeast University, 210096 Nanjing, Jiangsu China
| | - Jin Wang
- Department of Pharmacology, School of Basic Medical Sciences, Shandong University, 250012 Jinan, Shandong China
| | - Jie An
- Department of Pharmacology, School of Basic Medical Sciences, Shandong University, 250012 Jinan, Shandong China
| | - Fan Yang
- Department of Pharmacology, School of Basic Medical Sciences, Shandong University, 250012 Jinan, Shandong China
| | - Yun-Fei Xu
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, Shandong University School of Medicine, 250012 Jinan, Shandong China
| | - Hui Lin
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Shandong University, 250012 Jinan, Shandong China
| | - Wen-Tao An
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Shandong University, 250012 Jinan, Shandong China
| | - Jia Wang
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shandong University, 250012 Jinan, Shandong China
| | - Zhao Yang
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shandong University, 250012 Jinan, Shandong China
| | - Ren-Jie Chai
- Key Laboratory for Developmental Genes and Human Disease of the Ministry of Education, School of Life Science and Technology, Southeast University, 210096 Nanjing, Jiangsu China
| | - Xue-Ying Sha
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, 100191 Beijing, China
| | - Hui-Li Hu
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Genetics, School of Basic Medical Sciences, Shandong University, 250012 Jinan, Shandong China
| | - Jin-Peng Sun
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, 100191 Beijing, China
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shandong University, 250012 Jinan, Shandong China
| | - Xiao Yu
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Shandong University, 250012 Jinan, Shandong China
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29
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Badrutdinov AO, Rees DG, Lin JY, Smorodin AV, Konstantinov D. Unidirectional Charge Transport via Ripplonic Polarons in a Three-Terminal Microchannel Device. Phys Rev Lett 2020; 124:126803. [PMID: 32281854 DOI: 10.1103/physrevlett.124.126803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 01/13/2020] [Accepted: 02/28/2020] [Indexed: 06/11/2023]
Abstract
We study the transport of surface electrons on superfluid helium through a microchannel structure in which the charge flow splits into two branches, one flowing straight and one turned at 90°. According to Ohm's law, an equal number of charges should flow into each branch. However, when the electrons are dressed by surface excitations (ripplons) to form polaronlike particles with sufficiently large effective mass, all the charge follows the straight path due to momentum conservation. This surface-wave induced transport is analogous to the motion of electrons coupled to surface acoustic waves in semiconductor 2DEGs.
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Affiliation(s)
- A O Badrutdinov
- Okinawa Institute of Science and Technology, Tancha 1919-1, Okinawa 904-0495, Japan
| | - D G Rees
- NCTU-RIKEN Joint Research Laboratory, Institute of Physics, National Chiao Tung University, Hsinchu 300, Taiwan
- RIKEN CEMS, Wako 351-0198, Japan
| | - J Y Lin
- Okinawa Institute of Science and Technology, Tancha 1919-1, Okinawa 904-0495, Japan
| | - A V Smorodin
- Okinawa Institute of Science and Technology, Tancha 1919-1, Okinawa 904-0495, Japan
| | - D Konstantinov
- Okinawa Institute of Science and Technology, Tancha 1919-1, Okinawa 904-0495, Japan
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30
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Li HQ, Lin JY, Zhao H. [Clinical and pathological study on IgG4-related ophthalmic disease involving the lacrimal gland]. Zhonghua Yan Ke Za Zhi 2019; 55:834-841. [PMID: 31715680 DOI: 10.3760/cma.j.issn.0412-4081.2019.11.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To summarize the clinical and pathological characteristics of IgG4-related ophthalmic disease (IgG4-ROD) involving the lacrimal gland. Methods: A retrospective case series study. Forty cases (56 eyes) of lacrimal gland lesions were collected in Tianjin Eye Hospital from January 2003 to January 2018 and confirmed by histopathology as lymphocyte and plasma cell infiltration with fibrosis of lacrimal gland tissue, excluding lymphoma, epithelial tumor, mesenchymal tumor and metastasis tumor. The clinical manifestations, serological and imaging examination of the patients were analyzed. Meanwhile, HE staining and immunohistochemical staining of IgG and IgG4 were performed on the pathological specimens. According to the diagnostic criteria, the cases were divided into the IgG4-ROD group and the non-IgG4-ROD group. The clinical and pathological characteristics of the two groups were statistically analyzed by Pearson chi-square and signed-rank test. Results: In the 40 cases (56 eyes), there were 15 cases (25 eyes) of IgG4-ROD and 25 cases (31 eyes) of non-IgG4-ROD. Statistically significant differences were observed between the two groups in the clinical and pathological characteristics (all P<0.05). About the distribution of eyes position, there were 10 binocular cases and 5 monocular cases in the IgG4-ROD group, and 6 binocular cases and 19 monocular cases in non-IgG4-ROD group (χ2=7.111).There were 21 eyes in the IgG4-ROD group and 5 eyes in the non-IgG4-ROD group about ptosis (χ2=25.631), 4 eyes in the IgG4-ROD group and 21 eyes in the non-IgG4-ROD group about ocular protrusion (χ2=14.992), 23 eyes in the IgG4-ROD group and 15 eyes in the non-IgG4-ROD group about the clear boundary of the tumor (χ2=12.069), 4 eyes in the IgG4-ROD group and 18 eyes in the non-IgG4-ROD group about the involvement of other orbital tissues (χ2=10.266) and 7 cases in the IgG4-ROD group and 3 cases in the non-IgG4-ROD group about the association with other systemic diseases (χ2=6.009). Compared with the non-IgG4-ROD group, the IgG4-ROD group had a heavier lymphocyte and plasma cell infiltration (+++,++,+; 10, 4, 1 vs. 6, 5, 12 eyes, Z=-3.153), and more lymphoid follicles (+++,++,+; 3, 6, 4 vs. 1, 2, 7 eyes, Z=-3.339), interstitial fibrosis was mostly striate (10 vs. 5 eyes, χ2=8.711), and there were a large number of IgG4+ plasma cells [96 (67, 135) vs. 4 (0, 12) cells per high power field, Z=-5.271] and ratio of IgG4+ plasma cells/IgG+ plasma cells [0.570 (0.500, 0.754) vs. 0.046 (0.000, 0.143), Z=-5.268, all P<0.05). Among the 10 cases of IgG4-ROD with serological examination, 9 cases showed elevated serum in IgG and IgG4. The ultrasonography and CT findings showed the lacrimal gland lesions in the IgG4-ROD group were mostly spindle or kidney shaped with clear boundaries, while the lesions in non-IgG4-ROD were mostly round or irregular with unclear boundaries. Conclusions: The lacrimal gland lesions of IgG4-ROD are characterized by bilaterally spindle or kidney shaped enlargement with clear boundaries. They are more associates with other systemic diseases. The pathological characteristics are a large number of IgG4+ plasma cells infiltration among the lacrimal gland tissue, interstitial striate fibrosis and a large number of lymphoid follicles. (Chin J Ophthalmol, 2019, 55: 834-841).
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Affiliation(s)
- H Q Li
- Tianjin Eye Hospital, Clinical College of Ophthalmology of Tianjin Medical University, Tianjin Eye Institute, Tianjin Key Laboratory of Ophthalmology and Vision Science, Tianjin 300020, China
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Chen SY, Lin JY, Lin CY. Compositions of injectable poly-d,l-lactic acid and injectable poly-l-lactic acid. Clin Exp Dermatol 2019; 45:347-348. [PMID: 31469923 PMCID: PMC7154629 DOI: 10.1111/ced.14085] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/22/2019] [Indexed: 11/29/2022]
Affiliation(s)
- S Y Chen
- Department of Neurosurgery, Chung-Shan Medical University Hospital, Chung-Shan Medical University, Taichung, Taiwan.,School of Medicine, Chung-Shan Medical University, Taichung, Taiwan
| | - J Y Lin
- Tobeauty Aesthetic Clinic, Taipei, Taiwan
| | - C Y Lin
- Tobeauty Aesthetic Clinic, Taipei, Taiwan
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32
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Wang YC, Chen LX, Li J, Liu YC, Lin JY. [The clinicopathological features and HPV detection of conjunctival actinic keratosis]. Zhonghua Yan Ke Za Zhi 2019; 55:531-535. [PMID: 31288357 DOI: 10.3760/cma.j.issn.0412-4081.2019.07.010] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To describe the clinicopathological features of conjunctival actinic keratosis (AK) and relation to the infection of human papillomavirus (HPV). Method: Retrospective case series study. Eighteen cases (18 eyes) of conjunctival AK were obtained in Tianjin Eye Hospital and Institute (2005-2018). The clinical and histopathological features were studied. HPV was detected by a modified general primer HPV polymerase chain reaction (PCR) system in all formalin-fixed, paraffin-embedded specimens. Results: The male to female ratio was 5∶1. The mean age at diagnosis was 60 years (range: 43-79 years). Sixteen cases were located in the nasal interpalpebral region, and two cases were located in the temporal interpalpebral region. All cases were located in corneal limbus, and the mean distance of corneal invasion was 2 mm (range, 1-4 mm). The mean diameter was 4.6 mm (range, 2.0-8.0 mm). Clinically, most lesions (16 cases) appeared as a white or milky, flat plaque with clear borderline and conjunctival hyperemia; a few lesions (2 cases) showed a brown-black mass, partially white. Pathologically, conjunctival AK was a proliferation of epithelium with prominent parakeratosis or hyperkeratosis, stratum spinosm thickening and basal cell proliferation. Many AKs show solar elastosis and a mild inflammatory infiltrate of lymphocytes and plasma cells in the stroma. Most lesions (15 cases) were hypertrophic type, two cases were pigmented type, and one case was acantholytic type. HPV was negative in 18 cases. All case were removed by complete surgical excision. The rage of follow-up period was 1.0-10.4 years, ten cases were recorded, and no case recurred after surgical excision. Conclusions: Conjunctival AK is epithelial precancerous lesion that occurs in the keratoconjunctival margin. HPV infection might not be a causative factor in conjunctival AK. (Chin J Ophthalmol, 2019, 55: 531-535).
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Affiliation(s)
- Y C Wang
- Tianjin Eye Hospital and Institute, Clinical College of Ophthalmology of Tianjin Medical University, Tianjin Key Laboratory of Ophthalmology and Vision Science, Tianjin 300020, China
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Lin JY, Gong ZH, Zheng J, Hu GX. [Research advancement of long non-coding RNAs in liver fibrosis]. Zhonghua Gan Zang Bing Za Zhi 2019; 27:149-152. [PMID: 30818923 DOI: 10.3760/cma.j.issn.1007-3418.2019.02.016] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Hepatic fibrosis is a wound healing and scar repair reaction after liver injury, and is a common pathway for various chronic liver diseases. Activation and proliferation of hepatic stellate cells are the key links in the occurrence and development of hepatic fibrosis. Recent studies have shown that long non-coding RNAs are involved in regulating the activation, proliferation and apoptosis of hepatic stellate cells. Thus, probing its mechanism of action will provide a new strategy for the diagnosis, treatment and prognosis in liver fibrosis.
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Affiliation(s)
- J Y Lin
- Graduate Institute, Guangzhou Medical University, Guangzhou 511436, China; Infection Department, Peking University Shenzhen Hospital, Shenzhen 518036, China; Gastroenterology Department, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen 518033, China
| | - Z H Gong
- Infection Department, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - J Zheng
- Traditional Chinese Medicine Department, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - G X Hu
- Infection Department, Peking University Shenzhen Hospital, Shenzhen 518036, China
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34
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Su YA, Bousman C, Li Q, Li JT, Lin JY, Si TM. Genetic variations in the ADCK1 gene predict paliperidone palmitate efficacy in Han Chinese patients with schizophrenia. J Neural Transm (Vienna) 2018; 126:19-25. [PMID: 30426252 DOI: 10.1007/s00702-018-1953-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 11/04/2018] [Indexed: 02/04/2023]
Abstract
Genome-wide association study results have linked ADCK1 genetic variation with paliperidone efficacy in a European cohort. However, the generalizability of this locus to non-European populations is unknown. Han Chinese schizophrenia patients (n = 159) were treated with paliperidone palmitate and symptom severity was assessed over 3 months. Examination of 13 ADCK1 genetic variants revealed two single nucleotide polymorphisms (rs12590199, rs11159291) and one haplotype (rs2364747-rs12590199) associated with paliperidone palmitate response. Future work into ADCK1's function and its potential interaction with paliperidone is warranted.
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Affiliation(s)
- Yun-Ai Su
- Peking University Sixth Hospital and Peking University Institute of Mental Health and Key Laboratory of Mental Health, Ministry of Health (Peking University) and National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, 100191, China
| | - Chad Bousman
- Departments of Medical Genetics, Psychiatry, and Physiology and Pharmacology, University of Calgary, Calgary, AB, T2N 4N1, Canada
| | - Qian Li
- Peking University Sixth Hospital and Peking University Institute of Mental Health and Key Laboratory of Mental Health, Ministry of Health (Peking University) and National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, 100191, China
| | - Ji-Tao Li
- Peking University Sixth Hospital and Peking University Institute of Mental Health and Key Laboratory of Mental Health, Ministry of Health (Peking University) and National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, 100191, China
| | - Jing-Yu Lin
- Peking University Sixth Hospital and Peking University Institute of Mental Health and Key Laboratory of Mental Health, Ministry of Health (Peking University) and National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, 100191, China
| | - Tian-Mei Si
- Peking University Sixth Hospital and Peking University Institute of Mental Health and Key Laboratory of Mental Health, Ministry of Health (Peking University) and National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, 100191, China.
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35
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Liu Y, Li F, Yang YT, Xu XD, Chen JS, Chen TL, Chen HJ, Zhu YB, Lin JY, Li Y, Xie XM, Sun XL, Ke YQ. IGFBP2 promotes vasculogenic mimicry formation via regulating CD144 and MMP2 expression in glioma. Oncogene 2018; 38:1815-1831. [PMID: 30368528 DOI: 10.1038/s41388-018-0525-4] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 07/21/2018] [Accepted: 09/10/2018] [Indexed: 01/03/2023]
Abstract
Vasculogenic mimicry (VM) refers to the fluid-conducting channels formed by aggressive tumor cells rather than endothelial cells (EC) with elevated expression of genes associated with vascularization. VM has been considered as one of the reasons that glioblastoma becomes resistant to anti-VEGF therapy. However, the molecular basis underlying VM formation remains unclear. Here we report that the insulin-like growth factor-binding protein 2 (IGFBP2) acts as a potent factor to enhance VM formation in glioma. Evidence showed that elevated IGFBP2 expression was positively related with VM formation in patients with glioma. Enforced expression of IGFBP2 increased network formation of glioma cells in vitro by activating CD144 and MMP2 (Matrix Metalloproteinase 2). U251 cells with stable knockdown of IGFBP2 led to decreased VM formation and tumor progression in orthotopic mouse model. Mechanistically, IGFBP2 interacts with integrin α5 and β1 subunits and augments CD144 expression in a FAK/ERK pathway-dependent manner. Luciferase reporter and ChIP assay suggested that IGFBP2 activated the transcription factor SP1, which could bind to CD144 promoter. Thus, IGFBP2 acts as a stimulator of VM formation in glioma cells via enhancing CD144 and MMP2 expression.
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Affiliation(s)
- Y Liu
- Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China.,The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China, Guangzhou, China.,Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Guangzhou, China
| | - F Li
- Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China.,The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China, Guangzhou, China.,Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Guangzhou, China
| | - Y T Yang
- Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China.,The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China, Guangzhou, China.,Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Guangzhou, China
| | - X D Xu
- Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China.,The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China, Guangzhou, China.,Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Guangzhou, China
| | - J S Chen
- Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China.,The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China, Guangzhou, China.,Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Guangzhou, China
| | - T L Chen
- Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China.,The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China, Guangzhou, China.,Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Guangzhou, China
| | - H J Chen
- Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China.,The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China, Guangzhou, China.,Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Guangzhou, China
| | - Y B Zhu
- Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China.,The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China, Guangzhou, China.,Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Guangzhou, China
| | - J Y Lin
- Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China.,The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China, Guangzhou, China.,Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Guangzhou, China
| | - Y Li
- Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China.,The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China, Guangzhou, China.,Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Guangzhou, China
| | - X M Xie
- Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China.,The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China, Guangzhou, China.,Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Guangzhou, China
| | - X L Sun
- Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China. .,The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China, Guangzhou, China. .,Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Guangzhou, China.
| | - Y Q Ke
- Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China. .,The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China, Guangzhou, China. .,Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Guangzhou, China.
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36
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Lin JY, Huang Y, Su YA, Yu X, Lyu XZ, Liu Q, Si TM. Association between Perceived Stressfulness of Stressful Life Events and the Suicidal Risk in Chinese Patients with Major Depressive Disorder. Chin Med J (Engl) 2018; 131:912-919. [PMID: 29664050 PMCID: PMC5912056 DOI: 10.4103/0366-6999.229898] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [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] [Indexed: 01/10/2023] Open
Abstract
Background Patients with major depressive disorder (MDD) usually have high risk of suicidality. Few studies have investigated the effects of stressful life events (SLEs) on the risk of suicide in Chinese patients who have developed MDD. This study aimed to investigate the impact of SLEs on suicidal risk in Chinese patients with MDD. Methods In total, 1029 patients with MDD were included from nine psychiatric hospitals to evaluate the impact of SLEs on suicidal risk. Patients fulfilling the Mini-International Neuropsychiatric Interview (MINI) criteria for MDD were included in the study. Patients were excluded if they had lifetime or current diagnoses of psychotic disorder, bipolar disorder, and alcohol or substance dependence. Depressive symptoms were assessed by the 17-item Hamilton Depression Scale (HAMD-17). The suicidal risk of MDD patients was determined by the suicide risk module of MINI. SLEs were assessed by the Life Events Scale. Results No gender difference was found for suicidal risk in MDD patients. Patients with suicidal risk had younger ages, lower education levels, more drinking behavior, and lower marriage rate, and fewer people had child and more severe depressive symptoms than nonsuicidal risk group. High-level perceived stressfulness (HPS) and number of SLEs that patients were exposed to were significantly greater in patients with suicidal risk than patients without. In multivariate logistic analysis, HPS of SLEs (odds ratio [OR] = 1.54, 95% confidence interval [CI]: 1.16-2.05, P = 0.003) and depressive symptoms (OR = 1.08, 95% CI: 1.05-1.11, P < 0.001) were associated with suicidal risk even after adjustment of gender, age, marriage, drinking behavior, and childless. Conclusions HPS of SLEs is associated with suicide risk in Chinese patients with MDD. Further suicide prevention programs targeting this risk factor are needed. Trial Registration ClinicalTrials.gov: NCT02023567; https://clinicaltrials.gov/ct2/show/NCT02023567?term=NCT02023567&rank=1.
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Affiliation(s)
- Jing-Yu Lin
- Clinical Psychopharmacology Division, Peking University Sixth Hospital, National Clinical Research Center for Mental Disorders and Key Laboratory of Mental Health, Ministry of Health (Peking University), Beijing 100191, China
| | - Yu Huang
- National Engineering Research Center for Software Engineering, Peking University, Beijing 100871, China
| | - Yun-Ai Su
- Clinical Psychopharmacology Division, Peking University Sixth Hospital, National Clinical Research Center for Mental Disorders and Key Laboratory of Mental Health, Ministry of Health (Peking University), Beijing 100191, China
| | - Xin Yu
- Clinical Psychopharmacology Division, Peking University Sixth Hospital, National Clinical Research Center for Mental Disorders and Key Laboratory of Mental Health, Ministry of Health (Peking University), Beijing 100191, China
| | - Xiao-Zhen Lyu
- Clinical Psychopharmacology Division, Peking University Sixth Hospital, National Clinical Research Center for Mental Disorders and Key Laboratory of Mental Health, Ministry of Health (Peking University), Beijing 100191, China
| | - Qi Liu
- Clinical Psychopharmacology Division, Peking University Sixth Hospital, National Clinical Research Center for Mental Disorders and Key Laboratory of Mental Health, Ministry of Health (Peking University), Beijing 100191, China
| | - Tian-Mei Si
- Clinical Psychopharmacology Division, Peking University Sixth Hospital, National Clinical Research Center for Mental Disorders and Key Laboratory of Mental Health, Ministry of Health (Peking University), Beijing 100191, China
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Simunovic MP, Shen W, Lin JY, Protti DA, Lisowski L, Gillies MC. Optogenetic approaches to vision restoration. Exp Eye Res 2018; 178:15-26. [PMID: 30218651 DOI: 10.1016/j.exer.2018.09.003] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 08/16/2018] [Accepted: 09/07/2018] [Indexed: 10/28/2022]
Abstract
Inherited retinal disease (IRD) affects about 1 in 3000 to 1 in 5000 individuals and is now believed to be the most common cause of blindness registration in developed countries. Until recently, the management of such conditions had been exclusively supportive. However, advances in molecular biology and medical engineering have now seen the rise of a variety of approaches to restore vision in patients with IRDs. Optogenetic approaches are primarily aimed at rendering secondary and tertiary neurons of the retina light-sensitive in order to replace degenerate or dysfunctional photoreceptors. Such approaches are attractive because they provide a "causative gene-independent" strategy, which may prove suitable for a variety of patients with IRD. We discuss theoretical and practical considerations in the selection of optogenetic molecules, vectors, surgical approaches and review previous trials of optogenetics for vision restoration. Optogenetic approaches to vision restoration have yielded promising results in pre-clinical trials and a phase I/II clinical trial is currently underway (ClinicalTrials.gov NCT02556736). Despite the significant inroads made in recent years, the ideal optogenetic molecule, vector and surgical approach have yet to be established.
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Affiliation(s)
- M P Simunovic
- Save Sight Institute, University of Sydney, 8 Macquarie St., Sydney, NSW, 2000, Australia; Retinal Unit, Sydney Eye Hospital, 8 Macquarie St., Sydney, NSW, 2000, Australia.
| | - W Shen
- Retinal Unit, Sydney Eye Hospital, 8 Macquarie St., Sydney, NSW, 2000, Australia
| | - J Y Lin
- Faculty of Health, University of Tasmania, Private Bag 23, Hobart, TAS, 7000, Australia
| | - D A Protti
- Discipline of Physiology, University of Sydney, NSW, 2006, Australia
| | - L Lisowski
- Children's Medical Research Institute, University of Sydney, NSW, 2006, Australia; Military Institute of Hygiene and Epidemiology, 24-100, Puławy, Poland
| | - M C Gillies
- Save Sight Institute, University of Sydney, 8 Macquarie St., Sydney, NSW, 2000, Australia; Retinal Unit, Sydney Eye Hospital, 8 Macquarie St., Sydney, NSW, 2000, Australia
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38
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Zhao Y, Li HQ, Zhao H, Lin JY. [Clinicopathological study on conjunctival osseous choristoma]. Zhonghua Yan Ke Za Zhi 2018; 54:661-664. [PMID: 30220180 DOI: 10.3760/cma.j.issn.0412-4081.2018.09.005] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To summarize the clinical pathologic characteristics of conjunctival osseous choristoma. Methods: Retrospective case series study. Six cases of conjunctival osseous choristoma between January 2009 and June 2016 from Tianjin Eye Hosptial were reviewed retrospectively. The clinical features, CT characteristics and histological characteristics were analyzed. Results: The 6 cases includes 3 male patients and 3 females. The age of the patients ranged from 4 to 20 years. Three cases involved with the right eye and the other 3 involved with the left eye. Major clinical feature of the patient is the flat uplift tumor in the superior temporal quadrant of the conjunctiva. CT features of conjunctival osseous choristoma revealed a oval calcium spot of eyeball surface. All the patients received surgery. Pathological examination showed that the tumor is composed of bone tissue which was surrounded by fibrous tissue, and Haversian canals are present in compact bone tissue. Five patients were followed for 23 months to 8 years. None of the patients relapsed after operation. Conclusions: The major feature of conjuncital osseous choristoma is a tumor in the superior temporal quadrant of conjunctiva. Imaging examination reveals a oval calcium spot of eyeball surface. Pathological examination reveals that the osseous tumor is composed of compact bone tissue which was surrounded by fibrous tissue.Haversian canals are present in compact bone tissue.Diagnosis is dependent on histopathological examination. It is not prone to relapse after complete resection surgery. (Chin J Ophthalmol, 2018, 54: 661-664).
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Affiliation(s)
- Y Zhao
- Tianjin Eye Hospital and Institute, Clinical College of Ophthalmology of Tianjin Medical University, Tianjin Key Laboratory of Ophthalmology and Vision Science, Tianjin 300020, China
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Wu MY, Wang CH, Ng CY, Kuo TT, Chang YC, Yang CH, Lin JY, Ho HC, Chung WH, Chen CB. Periorbital erythema and swelling as a presenting sign of lupus erythematosus in tertiary referral centers and literature review. Lupus 2018; 27:1828-1837. [PMID: 30134759 DOI: 10.1177/0961203318792358] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Background Cutaneous lupus erythematosus (CLE) includes a broad range of dermatologic manifestations. Periorbital involvement, however, is a relatively rare clinical presentation of CLE. Objectives This clinical study aimed to investigate the characteristics of this unique presentation of CLE in tertiary medical centers. Methods We enrolled patients with periorbital erythema and swelling as the presenting sign of lupus erythematosus, from January 2003 to November 2017, using the data of 553 pathologically proven CLE cases from the registration database of the Chang Gung Memorial Hospitals in Taiwan. Results We enrolled a total of 25 patients. The mean age was 46.7 years and 68% of the patients were female. Most of the patients (84.0%) presented with unilateral involvement, with the left orbit involved in 15 patients (60%); the upper eyelid was the most frequently involved (72%). Mean duration between the onset of clinical manifestations and the diagnosis of CLE was approximately 59 weeks. Nineteen patients had been previously misdiagnosed. All patients had features compatible with CLE on histopathological examination. In contrast, laboratory analysis of the autoimmune profile often revealed negative results, including those for antinuclear antibodies (25%). Notably, anti-SSA/SSB (45.5%) showed the highest positive rate. During follow-up, six patients developed systemic lupus erythematosus (SLE) and two patients developed Sjögren syndrome. Conclusions The diagnosis of CLE presenting as periorbital erythema and swelling is often delayed because of clinical mimicry and the high proportion of negative results on autoantibody tests. Increased clinical suspicion and prompt histopathological examination are crucial for early diagnosis. Moreover, one-fourth of the patients ultimately developed SLE, which highlights the importance of clinical awareness.
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Affiliation(s)
- M Y Wu
- 1 Department of Dermatology, Chang Gung Memorial Hospital, Taipei, Linkou, and Keelung, Taiwan.,2 College of Medicine, Chang Gung University, Kwei-Shan, Taoyuan, Taiwan
| | - C H Wang
- 1 Department of Dermatology, Chang Gung Memorial Hospital, Taipei, Linkou, and Keelung, Taiwan.,2 College of Medicine, Chang Gung University, Kwei-Shan, Taoyuan, Taiwan
| | - C Y Ng
- 1 Department of Dermatology, Chang Gung Memorial Hospital, Taipei, Linkou, and Keelung, Taiwan.,2 College of Medicine, Chang Gung University, Kwei-Shan, Taoyuan, Taiwan.,7 Department of Pathology, Chang Gung Memorial Hospital, Linkou, Taiwan
| | - T T Kuo
- 2 College of Medicine, Chang Gung University, Kwei-Shan, Taoyuan, Taiwan.,7 Department of Pathology, Chang Gung Memorial Hospital, Linkou, Taiwan
| | - Y C Chang
- 1 Department of Dermatology, Chang Gung Memorial Hospital, Taipei, Linkou, and Keelung, Taiwan.,2 College of Medicine, Chang Gung University, Kwei-Shan, Taoyuan, Taiwan
| | - C H Yang
- 1 Department of Dermatology, Chang Gung Memorial Hospital, Taipei, Linkou, and Keelung, Taiwan.,2 College of Medicine, Chang Gung University, Kwei-Shan, Taoyuan, Taiwan
| | - J Y Lin
- 1 Department of Dermatology, Chang Gung Memorial Hospital, Taipei, Linkou, and Keelung, Taiwan.,2 College of Medicine, Chang Gung University, Kwei-Shan, Taoyuan, Taiwan
| | - H C Ho
- 1 Department of Dermatology, Chang Gung Memorial Hospital, Taipei, Linkou, and Keelung, Taiwan.,2 College of Medicine, Chang Gung University, Kwei-Shan, Taoyuan, Taiwan
| | - W H Chung
- 1 Department of Dermatology, Chang Gung Memorial Hospital, Taipei, Linkou, and Keelung, Taiwan.,2 College of Medicine, Chang Gung University, Kwei-Shan, Taoyuan, Taiwan.,4 Whole-Genome Research Core Laboratory of Human Diseases, Chang Gung Memorial Hospital, Keelung, Taiwan.,5 Chang Gung Immunology Consortium, Chang Gung Memorial Hospital and Chang Gung University, Taoyuan, Taiwan.,6 Department of Dermatology, Chang Gung Memorial Hospital, Xiamen, China
| | - C B Chen
- 1 Department of Dermatology, Chang Gung Memorial Hospital, Taipei, Linkou, and Keelung, Taiwan.,2 College of Medicine, Chang Gung University, Kwei-Shan, Taoyuan, Taiwan.,3 Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan.,4 Whole-Genome Research Core Laboratory of Human Diseases, Chang Gung Memorial Hospital, Keelung, Taiwan.,5 Chang Gung Immunology Consortium, Chang Gung Memorial Hospital and Chang Gung University, Taoyuan, Taiwan.,6 Department of Dermatology, Chang Gung Memorial Hospital, Xiamen, China
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Zhou S, Lin JY, Wong SW, Deng F, Zhu L, Yang Y, He Y, Tu ZH. Spoof Surface Plasmon Polaritons Power Divider with large Isolation. Sci Rep 2018; 8:5947. [PMID: 29654254 PMCID: PMC5899121 DOI: 10.1038/s41598-018-24404-0] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 04/03/2018] [Indexed: 11/09/2022] Open
Abstract
Periodic corrugated metal structure is designed to support and propagate spoof surface plasmon polaritons (SSPPs) wave in the microwave frequencies. In this paper, firstly a plasmonic waveguide consisting of oval-ring shaped cells is proposed with the performance of high transmission efficiency in a wide frequency range. The coplanar waveguides (CPWs) with 50 Ω impedance are adopted to feed the energies or extract signals at both ends of the plasmonic waveguide. Then a well-isolated power divider is constructed based on the SSPPs waveguides aiming to equally split the energy of the SSPPs wave into two equal parts. The stepped-impedances are co-designed with the three input/output ports of the power divider to achieve the impedance-matching between the SSPPs waveguides and the coplanar waveguides. Besides, a single resistor is placed in the middle of two symmetrical half oval-rings to realize the isolation between the two output ports over the spectrum of 4.5-7.5 GHz. Finally, both plasmonic waveguide and the power divider are fabricated and tested to verify the predicted characteristics.
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Affiliation(s)
- Shiyan Zhou
- School of Electronic and Information Engineering, South China University of Technology, Guangzhou City, Guangdong Province, 510640, China
| | - Jing-Yu Lin
- School of Electronic and Information Engineering, South China University of Technology, Guangzhou City, Guangdong Province, 510640, China
| | - Sai-Wai Wong
- College of Information Engineering, Shenzhen University, Shenzhen, 518060, China.
| | - Fei Deng
- School of Electronic and Information Engineering, South China University of Technology, Guangzhou City, Guangdong Province, 510640, China
| | - Lei Zhu
- Department of Electrical and Computer Engineering, Faculty of Science and Technology, University of Macau, Macau, SAR, 999078, China
| | - Yang Yang
- School of Electrical and Data Engineering, University of Technology Sydney, Ultimo, NSW 2007, Australia
| | - Yejun He
- College of Information Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Zhi-Hong Tu
- School of Electronic and Information Engineering, South China University of Technology, Guangzhou City, Guangdong Province, 510640, China
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41
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Lin JY, Mao X, Wu HJ, Xue AM. [Genes Expression in the Early Stage of Acute Renal Ischemia-reperfusion Injury in Rats]. Fa Yi Xue Za Zhi 2017; 32:401-405. [PMID: 29205962 DOI: 10.3969/j.issn.1004-5619.2016.06.001] [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] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Indexed: 11/18/2022]
Abstract
OBJECTIVES To study the differential genes expression in the early stage of acute renal ischemia-reperfusion injury and explore potential molecular mechanisms. METHODS The ischemia-reperfusion model was made via clamping renal artery of rat. The microarray detection and bioinformatics analyzing of the genes expression were performed. Differentially expressed genes were screened and related cellular activities and signaling pathways were analyzed in early stage of acute kidney injury. Meanwhile, molecules closely relative to acute kidney injury were explored by establishing a biological network of the differentially expressed genes, and the results were verified by real-time PCR. RESULTS A total of 151 genes showed differential expression in this study, including 132 up-regulated and 19 down-regulated genes. Cell proliferation, cytokines mediated signaling transduction and immune responses were greatly enriched by GO and KEGG analysis. The results of real-time PCR showed that compared with control groups, three selected genes (ANXA1, PHLDA1 and KLF6) which related to the acute kidney injury had an obvious differential expression in the early stage of disease. The multiple of increase was essentially the same as the multiple detected by microarray. CONCLUSIONS This study shows differential gene expression profile, related biological processes and signaling pathways involved in the early stage of acute kidney injury. ANXA1, PHLDA1 and KLF6 may play a role in the pathogenesis of acute kidney injury.
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Affiliation(s)
- J Y Lin
- Department of Forensic Medicine, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - X Mao
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - H J Wu
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - A M Xue
- Department of Forensic Medicine, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
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Chen YP, Zhu WF, Lin JY, He TM, Ma HM, Lu JP, Ye XA, Xu CW, Chen G. [Expression of PDGFRA and CMYC in extranodal NK/T-cell lymphoma and their prognostic implications]. Zhonghua Bing Li Xue Za Zhi 2016; 45:825-830. [PMID: 28056296 DOI: 10.3760/cma.j.issn.0529-5807.2016.12.003] [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 investigate the relationship between expression of PDGFRA/CMYC and clinicopathologic features of extranodal NK/T-cell lymphoma. Methods: Fifty-four cases of extranodal NK/T-cell lymphoma were included in the study.Immunohistochemistry was used to detect the expression of CD20, CD2, CD3, CD56, TIA1, GrB, Ki-67, PDGFRA and CMYC.In situ hybridization was performed to detect the presence of EBV encoded small RNA (EBER). Fifty cases of nasopharyngeal mucosal lymphoid tissue hyperplasia were used as normal control. Results: Among 54 cases of ENKTL, CD2, CD3, GrB, and TIA1 were expressed in all the tumors. CD56 was expressed in 47 cases (81.0%) and CD20 was not detectable in any cases. Ki-67 proliferative index expression of > 60% was found in 45 cases (83.3%). In situ hybridization for EBER was positive in all cases (100%). The positive expression rates of PDGFRA and CMYC in extranodal NK/T-cell lymphomas were 51.9%(28/54) and 53.7%(29/54), respectively, much higher than those in nasopharyngeal mucosal lymphoid tissue hyperplasia (0, P<0.05). There was a positive correlation between PDGFRA and CMYC (r=0.295, P<0.05). The expression of CMYC was correlated with clinical efficacy (P<0.05), but not with gender, age, Ann Arbor stage, B symptoms and therapeutic regimen (all P>0.05). The expression of PDGFRA was correlated with B symptoms (P<0.05), while not with gender, age, Ann Arbor stage, therapeutic regimen and clinical efficacy (all P>0.05). The co-expression of PDGFRA and CMYC was not correlated with gender, age, Ann Arbor stage, B symptoms, therapeutic regimen and clinical efficacy (P>0.05). Univariate analysis showed that the stage, clinical efficacy, CMYC protein and the co-expression of PDGFRA and CMYC were significantly correlated with the prognosis. The overall survival of the patients with CMYC positive expression was shorter than of that of the patients with negative expression (P<0.05). Multivariable Cox regression analysis further confirmed that clinical stage, CMYC protein expression, and the co-expression of PDGFRA and CMYC were independent prognostic factors in patients with extranodal NK/T-cell lymphoma. Conclusion: CMYC protein, and the co-expression of PDGFRA and CMYC can be as an independent prognostic factor in patients with extranodal NK/T-cell lymphoma and influence the prognosis of patients.
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Affiliation(s)
- Y P Chen
- Department of Pathology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, China
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43
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Cong CX, Lin JY, Wang LH. [Clinical and pathologic observation of uveal metastatic carcinoma]. Zhonghua Yan Ke Za Zhi 2016; 52:769-774. [PMID: 27760650 DOI: 10.3760/cma.j.issn.0412-4081.2016.10.010] [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 observe the clinical and pathological features of uveal metastatic carcinoma. Methods: It was a retrospective case series study. The clinical manifestation, growth pattern, tumor types and relative pathological features of 13 patients visiting from January 1980 to December 2014 with uveal metastatic carcinoma in Tianjin Eye Hospital were analyzed retrospectively. Results: There were 13 cases, 6 cases of male and 7 of female. Age was from 37.0 to 66.0 years old. The mean age was 52.1 years old. all cases were monocular. There were 5 cases with right eye and 8 cases with left eye. Among 13 cases, 10 tumors were in posterior choroid, one tumor was in anterior choroid and ciliary body, 2 tumors were in the iris. There were 5 patients with lung cancer, 4 patients with breast cancer, 1 patient with prostate cancer, 1 patient with thyroid cancer and 1 patient with esophageal cancer. The primary tumor wasn't found in 1 patient. The rapid decrease of visual acuity showed in 10 patients with posterior choroidal metastatic carcinoma, 8 of them accompanied with extensive retinal detachment and 6 of them had secondary glaucoma. The multiple gray-white nodule or pink cauliflower mass on the papillary margin of iris were showed respectively in 2 patients with iris metastatic carcinoma. The pathological examination found that posterior choroidal metastatic carcinoma mainly located in temporal or nasal side choroids in 10 cases, among them, local or diffuse flat choroidal masses showed in 6cases, extensive mass involving choroid and ciliary body showed in 1 case, large nodular or globular choroidal mass showed in 2 cases, choroidal mass surrounded the optic disc in 1 case, optic nerve invasion showed in 3 cases and extraocular or orbital invasion showed in 3 cases. The scleral and subconjunctival invasion showed in 1 case of anterior choroid and ciliary body metastatic carcinoma. Conclusions: Uveal metastatic carcinoma manifested various growth pattern, the rapid decrease of visual acuity, flat or nodular choroidal solid mass, secondary retinal detachment and glaucoma were common clinical features. Some cases might invade extraocular or orbital tissue. (Chin J Ophthalmol, 2016, 52: 769-774).
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Affiliation(s)
- C X Cong
- Clinical College of Ophthalmology, Tianjin Medical University, Tianjin Eye Institute, Tianjin Key Lab of Ophthalmology and Visual Science, Tianjin Eye Hospital, Tianjin 300020, China
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Yan YF, Yang JY, Lin JY. Enzyme activity and morphological change in the spleens of crucian carp in the Yongcheng coal mine subsidence area, China. Genet Mol Res 2016; 15:gmr7782. [PMID: 27173263 DOI: 10.4238/gmr.15027782] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The goal of the current study was to investigate the effects of pollution on aquatic organisms in the Yongcheng coal mine subsidence area. Crucian carp (Carassius auratus) were collected from Yongcheng natural fishpond (experimental group) and Tianmu Lake (control group), and the spleens were isolated for analysis. Subsequently, histological changes, DNA damage, and antioxidant enzyme activity were assessed. The result showed that there were more vacuoles, widened blood sinus cavities, increased partial dot necrosis, and a larger number of brown-yellow nodules in splenic sections stained with hematoxylin and eosin in the experimental group than in the control group. Additionally, it was not easy to distinguish red pulp from white pulp in the experimental group. The antioxidant enzyme activity in the experimental group was significantly lower than that in the control group (P < 0.01). Comet assay results showed varying degrees of tailing and DNA chain breaks in the experimental group, and further analysis demonstrated that the tail length and tail moment were significantly increased compared to those in the control group (P < 0.01). These results suggest that the spleen antioxidant defense system was severely damaged in crucian carp from the Yongcheng coal mine subsidence area.
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Affiliation(s)
- Y F Yan
- School of Life Sciences, Shangqiu Normal University, Shangqiu, Henan, China
| | - J Y Yang
- School of Physical Education, Henan Normal University, Xinxiang, Henan, China
| | - J Y Lin
- School of Physical Education, Henan Normal University, Xinxiang, Henan, China
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Krishna Murthy J, Chandrasekhar KD, Wu HC, Yang HD, Lin JY, Venimadhav A. Antisite disorder driven spontaneous exchange bias effect in La(2-x)Sr(x) CoMnO₆ (0 ⩽ x ⩽ 1). J Phys Condens Matter 2016; 28:086003. [PMID: 26823459 DOI: 10.1088/0953-8984/28/8/086003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Doping at the rare-earth site by divalent alkaline-earth ions in perovskite lattice has witnessed a variety of magnetic and electronic orders with spatially correlated charge, spin and orbital degrees of freedom. Here, we report an antisite disorder driven spontaneous exchange bias effect as a result of hole carrier (Sr(2+)) doping in La(2-x)Sr(x)CoMnO6 (0 < x < 1) double perovskites. X-ray diffraction and Raman spectroscopy have evidenced an increase in disorder with the increase of Sr content up to x = 0.5 and thereby a decrease from x = 0.5 to 1. X-ray absorption spectroscopy has revealed that only Co is present in the mixed valence of Co(2+) and Co(3+) states with Sr doping to compensate the charge neutrality. Magnetotransport is strongly correlated with the increase of antisite disorder. The antisite disorder at the B-site interrupts the long-range ferromagnetic order by introducing various magnetic interactions and instigates reentrant glassy dynamics, phase separation and canted type antiferromagnetic behavior with the decrease of temperature. This leads to a novel magnetic microstructure with unidirectional anisotropy that causes a spontaneous exchange bias effect that can be tuned with the amount of antisite disorder.
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Affiliation(s)
- J Krishna Murthy
- Cryogenic Engineering Centre, Indian Institute of Technology, Kharagpur-721302, India
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Zheng HF, Bai ZY, Lin JY, Wang GL, Li JL. Characterization and functional analysis of a chitin synthase gene (HcCS1) identified from the freshwater pearlmussel Hyriopsis cumingii. Genet Mol Res 2015; 14:19264-74. [PMID: 26782579 DOI: 10.4238/2015.december.29.36] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The triangle sail mussel, Hyriopsis cumingii, is the most important freshwater pearl mussel in China. However, the mechanisms underlying its chitin-mediated shell and nacre formation remain largely unknown. Here, we characterized a chitin synthase (CS) gene (HcCS1) in H. cumingii, and analyzed its possible physiological function. The complete ORF sequence of HcCS1 contained 6903 bp, encoding a 2300-amino acid protein (theoretical molecular mass = 264 kDa; isoelectric point = 6.22), and no putative signal peptide was predicted. A myosin motor head domain, a CS domain, and 12 transmembrane domains were found. The predicted spatial structures of the myosin head and CS domains were similar to the electron microscopic structure of the heavy meromyosin subfragment of chicken smooth muscle myosin and the crystal structure of bacterial cellulose synthase, respectively. This structural similarity indicates that the functions of these two domains might be conserved. Quantitative reverse transcription PCR results showed that HcCS1 was present in all detected tissues, with the highest expression levels detected in the mantle. The HcCS1 transcripts in the mantle were upregulated following shell damage from 12 to 24 h post-damage, and they peaked (approximately 1.5-fold increase) at 12 h after shell damage. These findings suggest that HcCS1 was involved in shell regeneration, and that it might participate in shell and nacre formation in this species via chitin synthesis. HcCS1 might also dynamically regulate chitin deposition during the process of shell and nacre formation with the help of its conserved myosin head domain.
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Affiliation(s)
- H F Zheng
- Key Laboratory of Freshwater Aquatic Genetic Resources, Shanghai Ocean University, Ministry of Agriculture, Shanghai, China.,East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Key Laboratory of East China Sea and Oceanic Fishery Resources Exploitation, Ministry of Agriculture, Shanghai, China
| | - Z Y Bai
- Key Laboratory of Freshwater Aquatic Genetic Resources, Shanghai Ocean University, Ministry of Agriculture, Shanghai, China
| | - J Y Lin
- Key Laboratory of Freshwater Aquatic Genetic Resources, Shanghai Ocean University, Ministry of Agriculture, Shanghai, China
| | - G L Wang
- Key Laboratory of Freshwater Aquatic Genetic Resources, Shanghai Ocean University, Ministry of Agriculture, Shanghai, China
| | - J L Li
- Key Laboratory of Freshwater Aquatic Genetic Resources, Shanghai Ocean University, Ministry of Agriculture, Shanghai, China.,Aquaculture Division, E-Institute of Shanghai Universities, Shanghai Ocean University, Shanghai, China
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Tseng YT, Chen CH, Lin JY, Li BH, Lu YH, Lin CH, Chen HT, Weng TC, Sokaras D, Chen HY, Soo YL, Lu TT. To Transfer or Not to Transfer? Development of a Dinitrosyl Iron Complex as a Nitroxyl Donor for the Nitroxylation of an Fe(III) -Porphyrin Center. Chemistry 2015; 21:17570-3. [PMID: 26437878 DOI: 10.1002/chem.201503176] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Indexed: 12/16/2022]
Abstract
A positive myocardial inotropic effect achieved using HNO/NO(-) , compared with NO⋅, triggered attempts to explore novel nitroxyl donors for use in clinical applications in vascular and myocardial pharmacology. To develop M-NO complexes for nitroxyl chemistry and biology, modulation of direct nitroxyl-transfer reactivity of dinitrosyl iron complexes (DNICs) is investigated in this study using a Fe(III) -porphyrin complex and proteins as a specific probe. Stable dinuclear {Fe(NO)2 }(9) DNIC [Fe(μ-(Me) Pyr)(NO)2 ]2 was discovered as a potent nitroxyl donor for nitroxylation of Fe(III) -heme centers through an associative mechanism. Beyond the efficient nitroxyl transfer, transformation of DNICs into a chemical biology probe for nitroxyl and for pharmaceutical applications demands further efforts using in vitro/in vivo studies.
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Affiliation(s)
- Yu-Ting Tseng
- Department of Chemistry, Chung Yuan Christian University No. 200, Chung Pei Rd. Taoyuan, 32023 (Taiwan)
| | - Chien-Hong Chen
- School of Medical Applied Chemistry, Chung Shan Medical University, No. 110, Section 1, Jianguo North Rd. Taichung, 40201 (Taiwan)
| | - Jing-Yu Lin
- Department of Chemistry, Chung Yuan Christian University No. 200, Chung Pei Rd. Taoyuan, 32023 (Taiwan)
| | - Bing-Han Li
- Department of Chemistry, Chung Yuan Christian University No. 200, Chung Pei Rd. Taoyuan, 32023 (Taiwan)
| | - Yu-Huan Lu
- Department of Chemistry, Chung Yuan Christian University No. 200, Chung Pei Rd. Taoyuan, 32023 (Taiwan)
| | - Chia-Her Lin
- Department of Chemistry, Chung Yuan Christian University No. 200, Chung Pei Rd. Taoyuan, 32023 (Taiwan)
| | - Hsin-Tsung Chen
- Department of Chemistry, Chung Yuan Christian University No. 200, Chung Pei Rd. Taoyuan, 32023 (Taiwan)
| | - Tsu-Chien Weng
- SLAC National Accelerator Laboratory 2575 Sand Hill Rd. Menlo Park, CA 94025 (USA)
| | - Dimosthenes Sokaras
- SLAC National Accelerator Laboratory 2575 Sand Hill Rd. Menlo Park, CA 94025 (USA)
| | - Huang-Yeh Chen
- National Synchrotron Radiation Research Center No. 101, Xin'an Rd., Hsinchu, 30076 (Taiwan)
| | - Yun-Liang Soo
- National Synchrotron Radiation Research Center No. 101, Xin'an Rd., Hsinchu, 30076 (Taiwan).,Department of Physics, National Tsing Hua University No. 101, Section 2, Guangfu Rd., Hsinchu, 30013 (Taiwan)
| | - Tsai-Te Lu
- Department of Chemistry, Chung Yuan Christian University No. 200, Chung Pei Rd. Taoyuan, 32023 (Taiwan).
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Abstract
Since their inception, micro-size light emitting diode (µLED) arrays based on III-nitride semiconductors have emerged as a promising technology for a range of applications. This paper provides an overview on a decade progresses on realizing III-nitride µLED based high voltage single-chip AC/DC-LEDs without power converters to address the key compatibility issue between LEDs and AC power grid infrastructure; and high-resolution solid-state self-emissive microdisplays operating in an active driving scheme to address the need of high brightness, efficiency and robustness of microdisplays. These devices utilize the photonic integration approach by integrating µLED arrays on-chip. Other applications of nitride µLED arrays are also discussed.
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Shu GW, Lin JY, Jian HT, Shen JL, Wang SC, Chou CL, Chou WC, Wu CH, Chiu CH, Kuo HC. Optical coupling from InGaAs subcell to InGaP subcell in InGaP/InGaAs/Ge multi-junction solar cells. Opt Express 2013; 21 Suppl 1:A123-A130. [PMID: 23389263 DOI: 10.1364/oe.21.00a123] [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] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Spatially-resolved electroluminescence (EL) images in the triple-junction InGaP/InGaAs/Ge solar cell have been investigated to demonstrate the subcell coupling effect. Upon irradiating the infrared light with an energy below bandgap of the active layer in the top subcell, but above that in the middle subcell, the EL of the top subcell quenches. By analysis of EL intensity as a function of irradiation level, it is found that the coupled p-n junction structure and the photovoltaic effect are responsible for the observed EL quenching. With optical coupling and photoswitching effects in the multi-junction diode, a concept of infrared image sensors is proposed.
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Affiliation(s)
- G W Shu
- Department of Physics, Chung Yuan Christian University, Chung-Li 32023, Taiwan
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Ni F, Lin JY, Guo D, Zhou CQ, Yao X, Ye HZ, Wu GW. Observation on effects of aconitine via acupoint injection in rabbits. Chin J Integr Med 2012; 19:36-41. [PMID: 23275014 DOI: 10.1007/s11655-013-1324-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Indexed: 10/27/2022]
Abstract
OBJECTIVE To investigate the ability of the pericardium meridian (PM) to mitigate or enhance the cardiotoxic effects of aconitine injected at specific acupoint and non-acupoint sites in rabbits. METHODS This study consisted of 3 experiments that were designed to test the effects of injection of 30 μg/kg of aconitine at acupoints on the PM (Test 1), at non-acupoint sites on the PM (Test 2), and at acupoints on other meridians and non-meridian sites (Test 3). In Test 1, 24 rabbits were randomly assigned to receive injections at Quze (PC3), Tianquan (PC2), or intramuscularly. In Test 2, 24 rabbits were randomly assigned to receive injections of aconitine at non-acupoint I, non-acupoint II, or intramuscularly. In Test 3, 48 rabbits were randomly assigned to receive injections at Neiguan (PC6), Sanyinjiao (SP6), Yangjiao (GB35), a non-meridian and non-acupoint site (NMNA), intravenously, and intramuscularly. Electrocardiographs of the rabbits were performed before, during and after injection to determine the incidence of arrhythmia, latency of ventricular rhythm, and recovery rate after aconitine injection. The recovery time index and extent of arrhythmia scores were calculated. RESULTS In all groups the incidence of arrhythmia was 100%, and the latency of ventricular rhythm was less than 30 min. In Tests 1 and 2, the recovery rates of the Quze and non-acupoint II groups were significantly higher than those of the muscular group (P < 0.05). In Test 3, the recovery time index and extent of arrhythmia scores of the Neiguan group were low. There were no significant differences between the other acupoint groups, or the NMNA group, when compared with the group receiving aconitine intramuscularly. CONCLUSIONS Acupoints or non-acupoints along the PM could reduce the severity of the arrhythmia induced by aconitine in healthy rabbits. Meridians play an important role in protecting body functions.
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Affiliation(s)
- Feng Ni
- Department of Pharmacy, Fujian Health College, Fuzhou, 350101, China.
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