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Wang W, Liu C, He D, Shi G, Song P, Zhang B, Li T, Wei J, Jiang Y, Ma L. CircRNA CDR1as affects functional repair after spinal cord injury and regulates fibrosis through the SMAD pathway. Pharmacol Res 2024; 204:107189. [PMID: 38649124 DOI: 10.1016/j.phrs.2024.107189] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 04/16/2024] [Accepted: 04/18/2024] [Indexed: 04/25/2024]
Abstract
Spinal cord injury (SCI) is a complex problem in modern medicine. Fibroblast activation and fibroscarring after SCI impede nerve recovery. Non-coding RNA plays an important role in the progression of many diseases, but the study of its role in the progression of spinal fibrosis is still emerging. Here, we investigated the function of circular RNAs, specifically antisense to the cerebellar degeneration-related protein 1 (CDR1as), in spinal fibrosis and characterized its molecular mechanism and pathophysiology. The presence of CDR1as in the spinal cord was verified by sequencing and RNA expression assays. The effects of inhibition of CDR1as on scar formation, inflammation and nerve regeneration after spinal cord injury were investigated in vivo and in vitro. Further, gene expression of miR-7a-5p and protein expression of transforming Growth Factor Beta Receptor II (TGF-βR2) were measured to evaluate their predicted interactions with CDR1as. The regulatory effects and activation pathways were subsequently verified by miR-7a-5p inhibitor and siCDR1as. These results indicate that CDR1as/miR-7a-5p/TGF-βR2 interactions may exert scars and nerves functions and suggest potential therapeutic targets for treating spinal fibrotic diseases.
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Affiliation(s)
- Wenzhao Wang
- Department of Orthopedic, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China; Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Chang Liu
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Dong He
- Department of Neurosurgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China; Post-doctoral Scientific Research Workstation, Shandong Freda Biotech Co., Ltd, Jinan, Shandong, China; Department of Histology and Embryology, Cheeloo College of Medicine, School of Basic Medical Sciences Shandong University, Jinan, China
| | - Guidong Shi
- Department of Orthopedic, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Ping Song
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan, China; National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan, China
| | - Boqing Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan, China
| | - Tian Li
- School of Basic Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Jianlu Wei
- Department of Orthopedic, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.
| | - Yunpeng Jiang
- Department of Orthopedic, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.
| | - Liang Ma
- Department of Orthopedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China.
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Zhang Y, Wu J, Adili S, Wang S, Zhang H, Shi G, Zhao J. [Surveillance of echinococcosis in Bayingolin Mongol Autonomous Prefecture, Xinjiang Uygur Autonomous Region from 2017 to 2022]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2024; 36:79-82. [PMID: 38604689 DOI: 10.16250/j.32.1374.2023169] [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] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Abstract
OBJECTIVE To analyze the echinococcosis surveillance results in Bayingolin Mongol Autonomous Prefecture, Xinjiang Uygur Autonomous Region from 2017 to 2022, so as to provide insights into formulation of echinococcosis control measures in the prefecture. METHODS Villagers were randomly sampled using a multistage sampling method from class I and II echinococcosis endemic counties in Bayingolin Mongolian Autonomous Prefecture from 2017 to 2022 for detection of human echinococcosis, while all patients undergoing ultrasound examinations in medical institutions in class III endemic counties received active echinococcosis screening. In addition, livestock in centralized slaughterhouses or slaughtering sites were screened for echinococcosis using the palpation and necropsy method, and fresh domestic dog feces samples were collected from randomly selected dog owners in each administrative village for detection of Echinococcus copro-antigen in domestic dogs. The trends in detection of human and livestock echinococcosis, detection of newly diagnosed human echinococcosis cases and detection of Echinococcus coproantigen in domestic dogs were analyzed in Bayingolin Mongol Autonomous Prefecture from 2017 to 2022. RESULTS The mean detection rate of human echinococcosis was 0.13% (540/407 803) in Bayingolin Mongol Autonomous Prefecture from 2017 to 2022, which appeared a tendency towards a decline over years (χ2trend = 1 217.21, P < 0.001), and the highest detection of newly diagnosed echinococcosis cases was seen in Hejing County (0.28%, 191/67 865). The detection of livestock echinococcosis appeared a tendency towards a decline over years from 2017 to 2022 (χ2trend = 147.02, P < 0.001), with the highest detection rate seen in Hejing County (3.44%, 86/2 500), and the detection of Echinococcus copro-antigen in domestic dogs appeared a tendency towards a decline over years from 2017 to 2022 (χ2trend = 302.46, P < 0.001), with the highest detection rate in Qiemo County (2.74%, 118/4 313). CONCLUSIONS The detection of human and livestock echinococcosis and dog feces antigens Echinococcus copro-antigen in domestic dogs all appeared a tendency towards a decline in Bayingolin Mongol Autonomous Prefecture, Xinjiang Uygur Autonomous Region from 2017 to 2022; however, there is still a high echinococcosis transmission risk in local areas. Sustainable integrated echinococcosis control is required in Bayingolin Mongol Autonomous Prefecture.
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Affiliation(s)
- Y Zhang
- School of Public Health, Xinjiang Medical University, Urumqi, Xinjiang 830000, China
| | - J Wu
- School of Public Health, Xinjiang Medical University, Urumqi, Xinjiang 830000, China
| | - S Adili
- Xinjiang Uygur Autonomous Region Center for Disease Control and Prevention, Urumqi, Xinjiang 830000, China
| | - S Wang
- Xinjiang Uygur Autonomous Region Center for Disease Control and Prevention, Urumqi, Xinjiang 830000, China
| | - H Zhang
- Xinjiang Uygur Autonomous Region Center for Disease Control and Prevention, Urumqi, Xinjiang 830000, China
| | - G Shi
- Xinjiang Uygur Autonomous Region Center for Disease Control and Prevention, Urumqi, Xinjiang 830000, China
| | - J Zhao
- Xinjiang Uygur Autonomous Region Center for Disease Control and Prevention, Urumqi, Xinjiang 830000, China
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Shi G, Koichi N, Wan R, Wang Y, Reisdorf R, Wilson A, Huang TC, Amadio PC, Meves A, Zhao C, Moran SL. Pentamidine-loaded gelatin decreases adhesion formation of flexor tendon. J Orthop Translat 2024; 45:75-87. [PMID: 38511123 PMCID: PMC10950576 DOI: 10.1016/j.jot.2023.10.007] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 10/14/2023] [Accepted: 10/26/2023] [Indexed: 03/22/2024] Open
Abstract
Background Prevention of adhesion formation following flexor tendon repair is essential for restoration of normal finger function. Although many medications have been studied in the experimental setting to prevent adhesions, clinical application is limited due to the complexity of application and delivery in clinical translation. Methods In this study, optimal dosages of gelatin and pentamidine were validated by gelatin concentration test. Following cell viability, cell migration, live and dead cell, and cell adhesion assay of the Turkey tenocytes, a model of Turkey tendon repair was established to evaluate the effectiveness of the Pentamidine-Gelatin sheet. Results Pentamidine carried with gelatin, a Food and drug administration (FDA) approved material for drug delivery, showed good dynamic release, biocompatibility, and degradation. The optimal dose of pentamidine (25ug) was determined in the in vivo study using tenocyte viability, migration, and cell adhesion assays. Further biochemical analyses demonstrated that this positive effect may be due to pentamidine downregulating the Wnt signaling pathway without affecting collagen expression. Conclusions We tested a FDA-approved antibiotic, pentamidine, for reducing adhesion formation after flexor tendon repair in both in vitro and in vivo using a novel turkey animal model. Compared with the non-pentamidine treatment group, pentamidine treated turkeys had significantly reduced adhesions and improved digit function after six weeks of tendon healing. The translational potential of this article This study for the first time showed that a common clinical drug, pentamidine, has a potential for clinical application to reduce tendon adhesions and improve tendon gliding function without interfering with tendon healing.
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Affiliation(s)
- Guidong Shi
- Department of Orthopaedics, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | - Nakagawa Koichi
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | - Rou Wan
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | - Yicun Wang
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | - Ramona Reisdorf
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | - Abigayle Wilson
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | - Tony C.T. Huang
- Division of Plastic Surgery, Department of Surgery, Mayo Clinic, Rochester, MN, USA
| | - Peter C. Amadio
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | | | - Chunfeng Zhao
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | - Steven L. Moran
- Division of Plastic Surgery, Department of Surgery, Mayo Clinic, Rochester, MN, USA
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Wang Y, Shi G, Huang TCT, Li J, Long Z, Reisdorf R, Shin AY, Amadio P, Behfar A, Zhao C, Moran SL. Enhancing Functional Recovery after Segmental Nerve Defect Using Nerve Allograft Treated with Plasma-Derived Exosome. Plast Reconstr Surg 2023; 152:1247-1258. [PMID: 36912739 DOI: 10.1097/prs.0000000000010389] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 03/14/2023]
Abstract
BACKGROUND Nerve injuries can result in detrimental functional outcomes. Currently, autologous nerve graft offers the best outcome for segmental peripheral nerve injury. Allografts are alternatives, but do not have comparable results. This study evaluated whether plasma-derived exosome can improve nerve regeneration and functional recovery when combined with decellularized nerve allografts. METHODS The effect of exosomes on Schwann cell proliferation and migration were evaluated. A rat model of sciatic nerve repair was used to evaluate the effect on nerve regeneration and functional recovery. A fibrin sealant was used as the scaffold for exosome. Eighty-four Lewis rats were divided into autograft, allograft, and allograft with exosome groups. Gene expression of nerve regeneration factors was analyzed on postoperative day 7. At 12 and 16 weeks, rats were subjected to maximum isometric tetanic force and compound muscle action potential. Nerve specimens were then analyzed by means of histology and immunohistochemistry. RESULTS Exosomes were readily taken up by Schwann cells that resulted in improved Schwann cell viability and migration. The treated allograft group had functional recovery (compound muscle action potential, isometric tetanic force) comparable to that of the autograft group. Similar results were observed in gene expression analysis of nerve regenerating factors. Histologic analysis showed no statistically significant differences between treated allograft and autograft groups in terms of axonal density, fascicular area, and myelin sheath thickness. CONCLUSIONS Plasma-derived exosome treatment of decellularized nerve allograft may provide comparable clinical outcomes to that of an autograft. This can be a promising strategy in the future as an alternative for segmental peripheral nerve repair. CLINICAL RELEVANCE STATEMENT Off-the-shelf exosomes may improve recovery in nerve allografts.
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Affiliation(s)
- Yicun Wang
- From the Department of Orthopedics, Jinling Hospital, School of Medicine, Nanjing University
- Division of Plastic Surgery, Department of Surgery
- Department of Orthopedic Surgery
| | - Guidong Shi
- Department of Orthopedic Surgery
- Tianjin Medical University
| | | | - Jialun Li
- Division of Plastic Surgery, Department of Surgery
- Department of Plastic Surgery, Wuhan Union Hospital, Huazhong University of Science and Technology
| | | | | | | | | | - Atta Behfar
- Center for Regenerative Medicine
- Department of Cardiovascular Medicine, Mayo Clinic
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Lu G, Su Y, Jiang Y, Yang L, Wang Y, Shi G, Zhang F, Duan X, Hu H. Improving the visualisation of perforator arteries for anterolateral thigh flaps harvest in CT angiography via sublingual glyceryl trinitrate. Clin Radiol 2023; 78:e791-e797. [PMID: 37574403 DOI: 10.1016/j.crad.2023.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 07/05/2023] [Accepted: 07/08/2023] [Indexed: 08/15/2023]
Abstract
AIM To investigate the improvement of image quality and visualisation of the anterolateral thigh (ALT) flap perforators on computed tomography angiography (CTA) after administration of sublingual glyceryl trinitrate (GTN). MATERIALS AND METHODS Sixty patients with oral lesions received thigh CTA examinations were divided randomly into two groups after administration of sublingual GTN (GTN group) or without administration of sublingual GTN (non-GTN group). Two radiologists calculated the signal-to-noise ratio (SNR), contrast-to-noise ratio (CNR), and assessed the image quality of each vessel. Besides, the grade of thigh artery, the lumen diameter of deep femoral artery, lateral circumflex femoral artery (LCFA), the descending branch of LCFA and its proximal and distal perforators, and the number and type of visible perforators were evaluated quantitatively. RESULTS The SNR and CNR were not significantly different between the two groups (p>0.05). The image quality of CTA in the GTN group was significantly better than that in the non-GTN group (p<0.01). The lumen diameters of the deep femoral artery, LCFA, the descending branch of LCFA and its perforators were significantly larger in the GTN group than those in the non-GTN group (p<0.01). Compared with the non-GTN group, the number of visible perforators and the number of visible septocutaneous perforators were significantly more in the GTN group, and the qualitative grade of visible perforators was significantly higher (p<0.001). CONCLUSIONS The administration of sublingual GTN in preoperative thigh CTA can improve the image quality and visualisation of perforator vessels, thus could help surgeons to select the optimum ALT flaps.
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Affiliation(s)
- G Lu
- Department of Radiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangdong, China
| | - Y Su
- Department of Radiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangdong, China
| | - Y Jiang
- Department of Radiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangdong, China
| | - L Yang
- Department of Radiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangdong, China
| | - Y Wang
- Department of Radiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangdong, China
| | - G Shi
- Department of Radiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangdong, China; Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - F Zhang
- Department of Radiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangdong, China
| | - X Duan
- Department of Radiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangdong, China; Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.
| | - H Hu
- Department of Radiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangdong, China.
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Zhao R, Shao H, Shi G, Qiu Y, Tang T, Lin Y, Chen S, Huang C, Liao S, Chen J, Fu H, Liu J, Shen J, Liu T, Xu B, Zhang Y, Yang Y. The Role of Radiotherapy in Patients with Refractory Hodgkin Lymphoma after Brentuximab Vedotin and -/or Immune Checkpoint Inhibitors. Int J Radiat Oncol Biol Phys 2023; 117:e499. [PMID: 37785568 DOI: 10.1016/j.ijrobp.2023.06.1741] [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) Brentuximab vedotin (BV) and immune checkpoint inhibitors (ICIs) had important roles in the treatment of relapse or refractory (R/R) Hodgkin lymphoma (HL). Treatment of refractory disease after BV and -/or ICIs remains a challenge. This study was conducted to evaluate the efficacy and safety of radiotherapy for R/R HL after failure to BV or ICIs. MATERIALS/METHODS We retrospectively analyzed patients in two institutions with R/R HL who had failed after first-line therapy, and were refractory to BV or ICIs, and received radiotherapy (RT) thereafter. The overall response rate (ORR), duration of response (DOR), progression-free survival (PFS) and overall survival (OS) were analyzed. RESULTS A total of 19 patients were enrolled. First-line systemic therapy consisted of ABVD (84.2%), AVD + ICIs (10.5%) and BEACOPP (5.3%), respectively. After first-line therapy, 15 patients (78.9%) were refractory, and 4 patients (21.1%) relapsed. After diagnosis of R/R HL, 8 patients (42.1%) received BV, and 17 patients (89.5%) received ICIs. RT was delivered in all 19 patients who failed after BV or ICIs. In 16 efficacy-evaluable patients, the ORR and CR rate were 100% and 100%. The median DOR was 17.2 months (range, 7.9 to 46.7 months). 3 patients progressed at outside of the radiation field. The in-field-response rate was 100%. The 12-month PFS and OS were 84.4% and 100%, respectively. No patients were reported with sever adverse events. CONCLUSION This study concluded that radiotherapy was effective and safe for refractory HL after BV or ICIs. Further prospective studies were warranted.
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Affiliation(s)
- R Zhao
- Department of Radiation Oncology, Fujian Medical University Union Hospital, Fujian Key Laboratory of Intelligent Imaging and Precision Radiotherapy for Tumors (Fujian Medical University), Fuzhou, China
| | - H Shao
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guang Zhou, China
| | - G Shi
- Department of Radiation Oncology, Fujian Medical University Union Hospital, Fujian Key Laboratory of Intelligent Imaging and Precision Radiotherapy for Tumors (Fujian Medical University), Fuzhou, China
| | - Y Qiu
- Department of Hematology, Fujian Medical University Union Hospital, Fujian Institute of Hematology, Fujian Provincial Key Laboratory on Hematology, Fuzhou, China
| | - T Tang
- Department of Radiation Oncology, Affiliated Union Hospital of Fujian Medical University, Fuzhou, China
| | - Y Lin
- Department of Radiation Oncology, Fujian Medical University Union Hospital, Fuzhou, China
| | - S Chen
- Department of Radiation Oncology, Fujian Medical University Union Hospital, Fujian Key Laboratory of Intelligent Imaging and Precision Radiotherapy for Tumors (Fujian Medical University), Fuzhou, China
| | - C Huang
- Department of Radiation Oncology, Fujian Medical University Union Hospital, Fujian Key Laboratory of Intelligent Imaging and Precision Radiotherapy for Tumors (Fujian Medical University), Fuzhou, China
| | - S Liao
- Department of PET/CT Center, Fujian Medical University Union Hospital, Fuzhou, China
| | - J Chen
- Follow-Up Center, Fujian Medical University Union Hospital, Fuzhou, China
| | - H Fu
- Department of Hematology, The Third Affiliated People's Hospital of Fujian University of Traditional Chinese Medicine, The Third People's Hospital of Fujian Province, Fuzhou, China
| | - J Liu
- Department of Otorhinolaryngology, Fujian Medical University Union Hospital, Fuzhou, China
| | - J Shen
- Department of Hematology, Fujian Medical University Union Hospital, Fujian Institute of Hematology, Fujian Provincial Key Laboratory on Hematology, Fuzhou, China
| | - T Liu
- Department of Hematology, Fujian Medical University Union Hospital, Fujian Institute of Hematology, Fujian Provincial Key Laboratory on Hematology, Fuzhou, China
| | - B Xu
- Fujian Key Laboratory of Intelligent Imaging and Precision Radiotherapy for Tumors (Fujian Medical University), Fuzhou, China
| | - Y Zhang
- Sun Yat Sen University Cancer Hospital, Guandzhou, Guangdong, China
| | - Y Yang
- Fujian Key Laboratory of Intelligent Imaging and Precision Radiotherapy for Tumors (Fujian Medical University), Fuzhou, China
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Feng H, Liu H, Wang Q, Song M, Yang T, Zheng L, Wu D, Shao X, Shi G. Breast cancer diagnosis and prognosis using a high b-value non-Gaussian continuous-time random-walk model. Clin Radiol 2023:S0009-9260(23)00227-1. [PMID: 37344324 DOI: 10.1016/j.crad.2023.05.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 05/11/2023] [Accepted: 05/19/2023] [Indexed: 06/23/2023]
Abstract
AIM To compare the diagnostic performance of mono-exponential model-derived apparent diffusion coefficient (ADC), continuous-time random-walk (CTRW) model-derived Dm, α, β and their combinations in discriminating malignancy of breast lesions, and investigate the association between model-derived parameters and prognosis-related immunohistochemical indices. MATERIALS AND METHODS A total of 85 patients with breast lesions (51 malignant, 34 benign) were analysed in this retrospective study. Clinical characteristics include oestrogen receptor (ER), progesterone receptor (PR), human epidermal receptor 2 (HER2), and Ki-67. The ADC was fitted using a mono-exponential model (b-values = 0, 800 s/mm2), while Dm, α, and β were fitted using a CTRW model. Independent Student's t-test and the Mann-Whitney U-test were used for the comparison of parameters. Discrimination performance was accomplished by receiver operating characteristic (ROC) analysis, and Spearman's correlation analysis was used to explore the association between immunohistochemical indices and diffusion parameters, the statistical significance level was p<0.05. RESULTS Dm and ADC demonstrated similar performance in differentiating malignant and benign lesions (AUC = 0.928 versus 0.930), while the combination of Dm, α, and β could improve the AUC to 0.969. The combined parameter generated by ADC, Dm, α, and β was effective in identifying the ER+/ER- and PR+/PR- patients. Temporal heterogeneity parameter α correlated significantly with the expression of PR. CONCLUSION Diffusion parameters derived from the CTRW model could effectively discriminate the malignancy of breast lesions. Meanwhile, the hormone receptor expression could be distinguished by combined diffusion parameters, and have the potential to reflect the prognosis.
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Affiliation(s)
- H Feng
- Department of Radiology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - H Liu
- Department of Radiology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Q Wang
- Department of Radiology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - M Song
- Department of Radiology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - T Yang
- Shenzhen United Imaging Research Institute of Innovative Medical Equipment, Shenzhen, China
| | - L Zheng
- Shenzhen United Imaging Research Institute of Innovative Medical Equipment, Shenzhen, China
| | - D Wu
- Shanghai Key Laboratory of Magnetic Resonance, School of Physics and Electronics Science, East China Normal University, Shanghai, China
| | - X Shao
- Department of Anesthesiology, The Fourth Hospital of Shijiazhuang, Shijiazhuang, China
| | - G Shi
- Department of Radiology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China.
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Maimaitijiang W, Zhai X, Ayixiamu K, Shi G, Wang S, Cheng X, Kaderya E, Zhao J. [Visceral leishmaniasis in Xinjiang Uygur Autonomous Region during the COVID-19 pandemic: a case report]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2023; 35:213-216. [PMID: 37253573 DOI: 10.16250/j.32.1374.2022209] [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] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
OBJECTIVE To perform an epidemiological investigation on a case of visceral leishmaniasis reported from Shule County, Kashi Prefecture, Xinjiang Uygur Autonomous Region in 2021, so as to provide insights into differential diagnosis of visceral leishmaniasis during the COVID-19 pandemic. METHODS The epidemiological history of this case was collected, and the case was diagnosed for Leishmania infection with the immunochromatographic (rK39) strip test, bone marrow smear microscopy and PCR assay. RESULTS The patient had typical clinical symptoms of leishmaniasis, including irregular fever, hepatosplenomeg- aly, low serum albumin and elevated globulin. Bone marrow smear microscopy identified L. donovani amastigotes, and both rK39 strip test and PCR assay were positive, while the case was tested negative for SARS-CoV-2. COVID-19 was therefore excluded and visceral leishmaniasis was diagnosed. Standard full-dose treatment with sodium stibogluconate was given, and no Leishmania was found on blood smears during the reexamination. No recurrence was found during the followup after discharge for hospital. CONCLUSIONS During the COVID-19 pandemic, it is recommended to increase the perception of differential diagnosis of visceral leishmaniasis among first-contact doctors, and reinforce the capability of differential diagnosis and health education of visceral leishmaniasis among medical and healthcare institutions at all levels, to prevent missed diagnosis and misdiagnosis of visceral leishmaniasis.
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Affiliation(s)
- W Maimaitijiang
- Xinjiang Uygur Autonomous Region Center for Disease Control and Pretention, Urumqi, Xinjiang 830002, China
| | - X Zhai
- Xinjiang Uygur Autonomous Region Center for Disease Control and Pretention, Urumqi, Xinjiang 830002, China
| | - K Ayixiamu
- Xinjiang Uygur Autonomous Region Center for Disease Control and Pretention, Urumqi, Xinjiang 830002, China
| | - G Shi
- Xinjiang Uygur Autonomous Region Center for Disease Control and Pretention, Urumqi, Xinjiang 830002, China
| | - S Wang
- Xinjiang Uygur Autonomous Region Center for Disease Control and Pretention, Urumqi, Xinjiang 830002, China
| | - X Cheng
- Xinjiang Uygur Autonomous Region Center for Disease Control and Pretention, Urumqi, Xinjiang 830002, China
| | - E Kaderya
- Xinjiang Uygur Autonomous Region Center for Disease Control and Pretention, Urumqi, Xinjiang 830002, China
| | - J Zhao
- Xinjiang Uygur Autonomous Region Center for Disease Control and Pretention, Urumqi, Xinjiang 830002, China
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Shi G, Cui Y, Zhao J, Liu J, Wang Y, Yang Y, Han J, Cheng X, Chen L, Yuan Y, Mi P. Identifying TOPK and Hypoxia Hallmarks in Esophageal Tumors for Photodynamic/Chemo/Immunotherapy and Liver Metastasis Inhibition with Nanocarriers. ACS Nano 2023; 17:6193-6207. [PMID: 36853935 DOI: 10.1021/acsnano.2c07488] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Although esophageal squamous cell carcinoma (ESCC) is one of the most lethal cancers, there are major bottlenecks in its therapeutic approaches, primarily the identification of clinically relevant targets and the lack of effective targeted therapeutics. Herein, we identified the hallmarks of ESCC, namely, high T-lymphokine-activated killer cell-originated protein kinase (TOPK) expression in human ESCC tumors and its correlation with poor patient prognosis and hypoxia in the tumor microenvironment. We developed hypoxia-sensitive nanoparticles encapsulating TOPK inhibitor OTS964 and photosensitizer chlorin e6 for the imaging-directed precision therapy of ESCC tumors. The sub-100 nm monodisperse nanoparticles efficiently delivered drugs into the human ESCC KYSE 150 cancer cells to kill the cells. The nanoparticles were selectively accumulated in the ESCC tumors after intravenous (i.v.) injection, thereby enabling the diagnosis and photoacoustic imaging-guided local laser irradiation of tumors. The combination of chemotherapy and photodynamic therapy effectively eradicated human ESCC KYSE 150 tumors and inhibited liver metastasis and recurrence by suppressing TOPK and inducing ESCC cell apoptosis. The nanoparticle-based therapies further stimulated high rates of natural killer cells in ESCC tumors, thereby exhibiting the potential of immunotherapy. This study identified important therapeutic targets of ESCC tumors and delineated an effective nanocarrier-based approach for tumor microenvironment and molecular targeted therapy.
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Affiliation(s)
- Guidong Shi
- Department of Radiology and Center for Medical Imaging, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, No.17 South Renmin Road, Chengdu, Sichuan 610041, China
- Department of Thoracic Surgery, West China Hospital, Sichuan University, No.17 South Renmin Road, Chengdu, Sichuan 610041, China
| | - Yongsheng Cui
- Department of Radiology and Center for Medical Imaging, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, No.17 South Renmin Road, Chengdu, Sichuan 610041, China
| | - Jinhua Zhao
- Department of Radiology and Center for Medical Imaging, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, No.17 South Renmin Road, Chengdu, Sichuan 610041, China
| | - Jing Liu
- Department of Radiology and Center for Medical Imaging, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, No.17 South Renmin Road, Chengdu, Sichuan 610041, China
| | - Yao Wang
- Department of Radiology and Center for Medical Imaging, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, No.17 South Renmin Road, Chengdu, Sichuan 610041, China
| | - Yushang Yang
- Department of Thoracic Surgery, West China Hospital, Sichuan University, No.17 South Renmin Road, Chengdu, Sichuan 610041, China
| | - Junhong Han
- Laboratory of Cancer Epigenetics and Genomics, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, No.17 South Renmin Road, Chengdu 610041, China
| | - Xueqing Cheng
- Department of Radiology and Center for Medical Imaging, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, No.17 South Renmin Road, Chengdu, Sichuan 610041, China
| | - Longqi Chen
- Department of Thoracic Surgery, West China Hospital, Sichuan University, No.17 South Renmin Road, Chengdu, Sichuan 610041, China
| | - Yong Yuan
- Department of Thoracic Surgery, West China Hospital, Sichuan University, No.17 South Renmin Road, Chengdu, Sichuan 610041, China
| | - Peng Mi
- Department of Radiology and Center for Medical Imaging, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, No.17 South Renmin Road, Chengdu, Sichuan 610041, China
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Lin Z, Shi G, Liao X, Liu W, Luo X, Zhan H, Cai X. Effect of pulmonary function on bone mineral density in the United States: results from the NHANES 2007-2010 study. Osteoporos Int 2023; 34:955-963. [PMID: 36952024 DOI: 10.1007/s00198-023-06727-5] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 03/16/2023] [Indexed: 03/24/2023]
Abstract
UNLABELLED The relationship between pulmonary function (PF) and bone mineral density (BMD) remains controversial. In the US population, we found a positive association between PF and BMD. Mixed variables such as age, gender, and race may influence this association. INTRODUCTION Based on the data from the National Health and Nutrition Examination Survey (NHANES) from 2007 to 2010, this study explored whether there is a correlation between PF (1st second forceful expiratory volume as a percentage of expected value (FEV1(% predicted)), (one-second rate (FEV1/FVC)), and bone mineral density. METHODS We evaluated the relationship between PF and BMD in 6327 NHANES subjects (mean age 44.51 ± 15.64 years) from 2007 to 2010. The bone mineral density of the whole femur was measured by dual-energy X-ray absorptiometry (DXA). After adjusting for a wide range of confounders, we examined the relationship between PF and total femur BMD using a multiple linear regression model. RESULTS Correction of race, age, alcohol consumption, body mass index (BMI), height, poor income ratio (PIR), total protein, serum calcium, serum uric acid, cholesterol, serum phosphorus, blood urea nitrogen, FEV1(% predicted), and femur BMD were positively correlated (β = 0.032, 95% CI: 0.010-0.054, P = 0.004). FEV1/FVC was positively correlated with spine BMD (β = 0.275 95%CI: 0.102-0.448, P = 0.002). CONCLUSIONS Our study shows that PF is positively associated with BMD in the US population. A variety of factors such as race and age influence this relationship. the relationship between PF and BMD needs to be further investigated, including specific regulatory mechanisms and confounding factors.
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Affiliation(s)
- Z Lin
- Department of Orthopedics, Fifth Affiliated Hospital of Sun Yat-sen University, Guangdong Province, Zhuhai, China
| | - G Shi
- Department of Orthopedics, Fifth Affiliated Hospital of Sun Yat-sen University, Guangdong Province, Zhuhai, China
| | - X Liao
- Department of Orthopedics, Fifth Affiliated Hospital of Sun Yat-sen University, Guangdong Province, Zhuhai, China
| | - W Liu
- Department of Orthopedics, Fifth Affiliated Hospital of Sun Yat-sen University, Guangdong Province, Zhuhai, China
| | - X Luo
- Department of Orthopedics, Fifth Affiliated Hospital of Sun Yat-sen University, Guangdong Province, Zhuhai, China
| | - H Zhan
- Department of Rehabilitation, Fifth Affiliated Hospital of Sun Yat-sen University, Guangdong Province, Zhuhai, China
| | - X Cai
- Department of Orthopedics, Fifth Affiliated Hospital of Sun Yat-sen University, Guangdong Province, Zhuhai, China.
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Bai J, Li J, Wang L, Hao S, Guo Y, Liu Y, Zhang Z, Li H, Sun WQ, Shi G, Wan P, Fu X. Effect of antioxidant procyanidin b2 (pcb2) on ovine oocyte developmental potential in response to in vitro maturation (ivm) and vitrification stress. Cryo Letters 2023; 44:109-117. [PMID: 37883161] [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: 10/27/2023]
Abstract
BACKGROUND It was demonstrated that external stress, such as in vitro maturation (IVM) and vitrification process can induce significantly reduced development capacity in oocytes. Previous studies indicated that antioxidants play a pivotal part in the acquisition of adaptation in changed conditions. At present, the role of the natural potent antioxidant PCB2 in response to IVM and vitrification during ovine oocyte manipulation has not been explored. OBJECTIVE To investigate whether PCB2 treatment could improve the developmental potential of ovine oocytes under IVM and vitrification stimuli. MATERIALS AND METHODS The experiment was divided into two parts. Firstly, the effect of PCB2 on the development of oocytes during IVM was evaluated. Un-supplemented and 5 ug per mL PCB2-supplemented in the IVM solution were considered as control and experimental groups (C + 5 ug per mL PCB2). The polar body extrusion (PBE) rate, mitochondrial membrane potential (MMP), ATP, reactive oxygen species (ROS) levels and early apoptosis of oocytes were measured after IVM. Secondly, we further determine whether PCB2 could improve oocyte quality under vitrification stress. The survival rate, PBE rate and early apoptosis of oocytes were compared between fresh group, vitrified group and 5 ug per mL PCB2-supplemented in the IVM solution after vitrification (V + 5 ug per mL PCB2). RESULTS Compared to the control group, adding PCB2 significantly increased PBE rate (79.4% vs. 62.8%, P < 0.01) and MMP level (1.9 +/- 0.08 vs. 1.3 +/- 0.04, P < 0.01), and decreased ROS level (47.1 +/- 6.3 vs. 145.3 +/- 8.9, P < 0.01). However, there was no significant difference in ATP content and early apoptosis. Compared to the fresh group, vitrification significantly reduced oocytes viability (43.0% vs. 90.8%, P < 0.01) as well as PBE rate (24.2% vs. 60.6%, P < 0.05). However, 5 ug per mL PCB2-supplemention during maturation had no effect on survival, PBE or early apoptosis in vitrified oocytes. CONCLUSION PCB2 could effectively antagonise the oxidative stress during IVM and promote oocyte development. DOI: 10.54680/fr23210110412.
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Affiliation(s)
- J Bai
- Institute of Biothermal Science and Technology, School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - J Li
- Department of Reproductive Medicine, Reproductive Medical Center, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - L Wang
- National Engineering Laboratory for Animal Breeding, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - S Hao
- State Key Laboratory of Sheep Genetic Improvement and Healthy Breeding, Institute of Animal Husbandry and Veterinary Sciences, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, China
| | - Y Guo
- State Key Laboratory of Sheep Genetic Improvement and Healthy Breeding, Institute of Animal Husbandry and Veterinary Sciences, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, China
| | - Y Liu
- State Key Laboratory of Sheep Genetic Improvement and Healthy Breeding, Institute of Animal Husbandry and Veterinary Sciences, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, China
| | - Z Zhang
- State Key Laboratory of Sheep Genetic Improvement and Healthy Breeding, Institute of Animal Husbandry and Veterinary Sciences, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, China
| | - H Li
- State Key Laboratory of Sheep Genetic Improvement and Healthy Breeding, Institute of Animal Husbandry and Veterinary Sciences, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, China
| | - W Q Sun
- Institute of Biothermal Science and Technology, School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - G Shi
- State Key Laboratory of Sheep Genetic Improvement and Healthy Breeding, Institute of Animal Husbandry and Veterinary Sciences, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, China
| | - P Wan
- State Key Laboratory of Sheep Genetic Improvement and Healthy Breeding, Institute of Animal Husbandry and Veterinary Sciences, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, China.
| | - X Fu
- National Engineering Laboratory for Animal Breeding, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing; State Key Laboratory of Sheep Genetic Improvement and Healthy Breeding, Institute of Animal Husbandry and Veterinary Sciences, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, China.
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Yang L, Liu H, Han J, Xu S, Zhang G, Wang Q, Du Y, Yang F, Zhao X, Shi G. Ultra-low-dose CT lung screening with artificial intelligence iterative reconstruction: evaluation via automatic nodule-detection software. Clin Radiol 2023:S0009-9260(23)00031-4. [PMID: 36948944 DOI: 10.1016/j.crad.2023.01.006] [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] [Received: 07/05/2022] [Revised: 01/04/2023] [Accepted: 01/15/2023] [Indexed: 02/05/2023]
Abstract
AIM To test the feasibility of ultra-low-dose (ULD) computed tomography (CT) combined with an artificial intelligence iterative reconstruction (AIIR) algorithm for screening pulmonary nodules using computer-assisted diagnosis (CAD). MATERIALS AND METHODS A chest phantom with artificial pulmonary nodules was first scanned using the routine protocol and the ULD protocol (3.28 versus 0.18 mSv) to compare the image quality and to test the acceptability of the ULD CT protocol. Next, 147 lung-screening patients were enrolled prospectively, undergoing an additional ULD CT immediately after their routine CT examination for clinical validation. Images were reconstructed with filtered back-projection (FBP), hybrid iterative reconstruction (HIR), the AIIR, and were imported to the CAD software for preliminary nodule detection. Subjective image quality on the phantom was scored using a five-point scale and compared using the Mann-Whitney U-test. Nodule detection using CAD was evaluated for ULD HIR and AIIR images using the routine dose image as reference. RESULTS Higher image quality was scored for AIIR than for FBP and HIR at ULD (p<0.001). As reported by CAD, 107 patients were presented with more than five nodules on routine dose images and were chosen to represent the challenging cases at an early stage of pulmonary disease. Among such, the performance of nodule detection by CAD on ULD HIR and AIIR images was 75.2% and 92.2% of the routine dose image, respectively. CONCLUSION Combined with AIIR, it was feasible to use an ULD CT protocol with 95% dose reduction for CAD-based screening of pulmonary nodules.
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Affiliation(s)
- L Yang
- Department of Radiology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - H Liu
- Department of Radiology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - J Han
- United Imaging Healthcare, Shanghai, China
| | - S Xu
- United Imaging Healthcare, Shanghai, China
| | - G Zhang
- United Imaging Healthcare, Shanghai, China
| | - Q Wang
- Department of Radiology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Y Du
- Department of Radiology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - F Yang
- Department of Radiology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - X Zhao
- Department of Radiology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - G Shi
- Department of Radiology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China.
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Shi G, Quevedo Gonzalez FJ, Breighner RE, Carrino JA, Siewerdsen JH, Zbijewski W. Effects of non-stationary blur on texture biomarkers of bone using Ultra-High Resolution CT. Proc SPIE Int Soc Opt Eng 2023; 12468:1246813. [PMID: 38226358 PMCID: PMC10788132 DOI: 10.1117/12.2654304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2024]
Abstract
Purpose To advance the development of radiomic models of bone quality using the recently introduced Ultra-High Resolution CT (UHR CT), we investigate inter-scan reproducibility of trabecular bone texture features to spatially-variant azimuthal and radial blurs associated with focal spot elongation and gantry rotation. Methods The UHR CT system features 250×250 μm detector pixels and an x-ray source with a 0.4×0.5 mm focal spot. Visualization of details down to ~150 μm has been reported for this device. A cadaveric femur was imaged on UHR CT at three radial locations within the field-of-view: 0 cm (isocenter), 9 cm from the isocenter, and 18 cm from the isocenter; we expect the non-stationary blurs to worsen with increasing radial displacement. Gray level cooccurrence (GLCM) and gray level run length (GLRLM) texture features were extracted from 237 trabecular regions of interest (ROIs, 5 cm diameter) placed at corresponding locations in the femoral head in scans obtained at the different shifts. We evaluated concordance correlation coefficient (CCC) between texture features at 0 cm (reference) and at 9 cm and 18 cm. We also investigated whether the spatially-variant blurs affect K-means clustering of trabecular bone ROIs based on their texture features. Results The average CCCs (against the 0 cm reference) for GLCM and GLRM features were ~0.7 at 9 cm. At 18 cm, the average CCCs were reduced to ~0.17 for GLCM and ~0.26 for GLRM. The non-stationary blurs are incorporated in radiomic features of cancellous bone, leading to inconsistencies in clustering of trabecular ROIs between different radial locations: an intersection-over-union overlap of corresponding (most similar) clusters between 0 cm and 9 cm shift was >70%, but dropped to <60% for the majority of corresponding clusters between 0 cm and 18 cm shift. Conclusion Non-stationary CT system blurs reduce inter-scan reproducibility of texture features of trabecular bone in UHR CT, especially for locations >15 cm from the isocenter. Radiomic models of bone quality derived from UHR CT measurements at isocenter might need to be revised before application in peripheral body sites such as the hips.
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Affiliation(s)
- G Shi
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD USA 21205
| | - F J Quevedo Gonzalez
- Department of Biomechanics, Hospital for Special Surgery, New York, NY USA 10021
| | - R E Breighner
- Department of Biomechanics, Hospital for Special Surgery, New York, NY USA 10021
| | - J A Carrino
- Hospital for Special Surgery, Radiology & Imaging, New York, NY USA 10021
| | | | - W Zbijewski
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD USA 21205
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Shi G, Long Z, De la Vega RE, Behfar A, Moran SL, Evans C, Zhao C. Purified exosome product enhances chondrocyte survival and regeneration by modulating inflammation and promoting chondrogenesis. Regen Med 2023; 18:55-71. [PMID: 36255073 PMCID: PMC9732920 DOI: 10.2217/rme-2022-0132] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 09/28/2022] [Indexed: 12/15/2022] Open
Abstract
Aim: This study was to detect the effects of purified exosome product (PEP) on C28/I2 cells and chondrocytes derived from osteoarthritis patients. Materials & methods: Cell viability and apoptosis assays were used to detect the effect of PEP on cells. qRT-PCR and cell fluorescence assays were used to investigate the potential mechanism of PEP on cell chondrogenesis. Results: PEP was internalized by cells at a fast rate and enhanced cellular proliferation and migration while attenuating apoptosis. These findings reflect the fact that PEP can increase the expression of PCNA and reduce the expression of CASP3/7/9 and BAX. Conclusion: This study suggests an innovative strategy for chondrogenesis that could be applied to osteoarthritis repair in the future.
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Affiliation(s)
- Guidong Shi
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN 55901, USA
- Department of Orthopaedics, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Zeling Long
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN 55901, USA
| | - Rodolfo E De la Vega
- Musculoskeletal Gene Therapy Research Laboratory, Rehabilitation Medicine Research Center, Mayo Clinic, Rochester, MN 55901, USA
- Department cBITE, MERLN Institute, Maastricht University, Maastricht, 6221, The Netherlands
| | - Atta Behfar
- Department of Cardiovascular Diseases, Van Cleve Cardiac Regenerative Medicine Program, Center for Regenerative Medicine, Mayo Clinic, Rochester, MN 55901, USA
| | - Steven L Moran
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN 55901, USA
| | - Christopher Evans
- Musculoskeletal Gene Therapy Research Laboratory, Rehabilitation Medicine Research Center, Mayo Clinic, Rochester, MN 55901, USA
| | - Chunfeng Zhao
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN 55901, USA
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Gumus M, Sukalinskaya A, Andric Z, Cheshuk V, Ciuleanu TE, Sezgin Goksu S, Cil T, Cicin I, Bulat I, Ostapenko Y, Penkov K, Hart C, Lai M, Chaao B, Jimenez J, Sepahi A, Shi G, Trott S, Hooper E. 181P SELECT: A phase II randomized trial evaluating 2 doses of vopratelimab (V) + pimivalimab (P) vs P in TISvopra selected patients (pts). Immuno-Oncology and Technology 2022. [DOI: 10.1016/j.iotech.2022.100293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Shi G, Xu J, Xia C, Ding S, Luo P. 1702P Comutations in DNA damage repair pathway and its correlations with potential biomarkers for colorectal cancer immunotherapy in a Chinese cohort. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Guo Y, Bai J, Zhang Z, Liu Y, Lu S, Liu C, Ni J, Zhou P, Fu X, Sun WQ, Wan P, Shi G. Pregnancy of cryopreserved ovine embryos at different developmental stages. Cryo Letters 2022; 43:269-275. [PMID: 36626131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
BACKGROUND Developmental stage and cryopreservation method have significant impact on the pregnancy rate after transfer of embryos produced in vivo. OBJECTIVE To determine the pregnancy outcomes from ovine embryos cryopreserved at different developmental stages. MATERIALS AND METHODS Embryos at different developmental stages were obtained from donor ewes through simultaneous estrus treatment and laparoscopic artificial insemination. Embryos, either cryopreserved via vitrification or slow freezing method, were implanted into recipient ewes. The pregnancy rate was determined 35 days after transfer. RESULTS The pregnancy rate of developing embryos increases after transfer from the morula stage, early blastocyst to expanded blastocyst stages (64.9%, 73.9% and 81.3%, respectively). However, cryopreservation significantly decreases the pregnancy rate of embryos at all three developmental stages, and there is no significant difference among developmental stages (43.9%, 43.7%, 52.9%, respectively). There is also no significant difference in the pregnancy rate between slowly-frozen embryos and vitrified embryos. CONCLUSION The pregnancy outcomes of embryo transfer is better at the expanded blastocyst stage than at earlier stages. However, no difference is observed in the pregnancy rate of embryos at different developmental stage after cryopreservation, either by slow freezing and vitrification. Cryopreservation methods for ovine embryos, both slow freezing and vitrification, need further improvement. doi.org/10.54680/fr22510110512.
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Affiliation(s)
- Y Guo
- State Key Laboratory of Sheep Genetic Improvement and Healthy Breeding, Institute of Animal Husbandry and Veterinary Sciences, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, Xinjiang, P.R. China
| | - J Bai
- State Key Laboratory of Sheep Genetic Improvement and Healthy Breeding, Institute of Animal Husbandry and Veterinary Sciences, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, Xinjiang; Institute of Biothermal Science and Technology, School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai; National Engineering Laboratory for Animal Breeding, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Z Zhang
- State Key Laboratory of Sheep Genetic Improvement and Healthy Breeding, Institute of Animal Husbandry and Veterinary Sciences, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, Xinjiang, P.R. China
| | - Y Liu
- State Key Laboratory of Sheep Genetic Improvement and Healthy Breeding, Institute of Animal Husbandry and Veterinary Sciences, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, Xinjiang, P.R. China
| | - S Lu
- State Key Laboratory of Sheep Genetic Improvement and Healthy Breeding, Institute of Animal Husbandry and Veterinary Sciences, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, Xinjiang, P.R. China
| | - C Liu
- State Key Laboratory of Sheep Genetic Improvement and Healthy Breeding, Institute of Animal Husbandry and Veterinary Sciences, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, Xinjiang, P.R. China
| | | | - P Zhou
- State Key Laboratory of Sheep Genetic Improvement and Healthy Breeding, Institute of Animal Husbandry and Veterinary Sciences, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, Xinjiang, P.R. China
| | - X Fu
- State Key Laboratory of Sheep Genetic Improvement and Healthy Breeding, Institute of Animal Husbandry and Veterinary Sciences, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, Xinjiang; National Engineering Laboratory for Animal Breeding, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - W Q Sun
- Institute of Biothermal Science and Technology, School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, P.R. China
| | - P Wan
- State Key Laboratory of Sheep Genetic Improvement and Healthy Breeding, Institute of Animal Husbandry and Veterinary Sciences, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, Xinjiang, China.
| | - G Shi
- State Key Laboratory of Sheep Genetic Improvement and Healthy Breeding, Institute of Animal Husbandry and Veterinary Sciences, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, Xinjiang, China.
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Huang W, Shang Q, Xiao X, Zhang H, Gu Y, Yang L, Shi G, Yang Y, Hu Y, Yuan Y, Ji A, Chen L. Raman spectroscopy and machine learning for the classification of esophageal squamous carcinoma. Spectrochim Acta A Mol Biomol Spectrosc 2022; 281:121654. [PMID: 35878494 DOI: 10.1016/j.saa.2022.121654] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 07/15/2022] [Accepted: 07/17/2022] [Indexed: 02/05/2023]
Abstract
Early diagnosis of esophageal squamous cell carcinoma (ESCC), a common malignant tumor with a low overall survival rate due to metastasis and recurrence, is critical for effective treatment and improved prognosis. Raman spectroscopy, an advanced detection technology for esophageal cancer, was developed to improve diagnosis sensitivity, specificity, and accuracy. This study proposed a novel, effective, and noninvasive Raman spectroscopy technique to differentiate and classify ESCC cell lines. Seven ESCC cell lines and tissues of an ESCC patient with staging of T3N1M0 and T3N2M0 at low and high differentiation levels were investigated through Raman spectroscopy. Raman spectral data analysis was performed with four machine learning algorithms, namely principal components analysis (PCA)- linear discriminant analysis (LDA), PCA-eXtreme gradient boosting (XGB), PCA- support vector machine (SVM), and PCA- (LDA, XGB, SVM)-stacked Gradient Boosting Machine (GBM). Four machine learning algorithms were able to classifiy ESCC cell subtypes from normal esophageal cells. The PCA-XGB model achieved an overall predictive accuracy of 85% for classifying ESCC and adjacent tissues. Moreover, an overall predictive accuracy of 90.3% was achieved in distinguishing low differentiation and high differentiation ESCC tissues with the same stage when PCA-LDA, XGM, and SVM models were combined. This study illustrated the Raman spectral traits of ESCC cell lines and esophageal tissues related to clinical pathological diagnosis. Future studies should investigate the role of Raman spectral features in ESCC pathogenesis.
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Affiliation(s)
- Wenhua Huang
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Qixin Shang
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xin Xiao
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Hanlu Zhang
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yimin Gu
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Lin Yang
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Guidong Shi
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yushang Yang
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yang Hu
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yong Yuan
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Aifang Ji
- Heping Hospital Affiliated to Changzhi Medical University, No. 161 Jiefang East Street, Changzhi 046000, China.
| | - Longqi Chen
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China.
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Murrell DF, Patsatsi A, Stavropoulos P, Baum S, Zeeli T, Kern JS, Sinclair R, Neale A, Arora P, Sugerman PB, Shi G, Werth VP, Caux F, Joly P. Phase 2 BELIEVE study part B: Efficacy and safety of rilzabrutinib for patients with pemphigus vulgaris. J Eur Acad Dermatol Venereol 2022; 36. [PMID: 35686647 DOI: 10.1111/jdv.18318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 05/30/2022] [Indexed: 11/30/2022]
Affiliation(s)
- D F Murrell
- Department of Dermatology, St George Hospital, University of New South Wales Faculty of Medicine, Sydney, Australia
| | - A Patsatsi
- 2nd Dermatology Department, Aristotle University Faculty of Medicine, Papageorgiou General Hospital, Thessaloniki, Greece
| | - P Stavropoulos
- 1st Department of Dermatology, National and Kapodistrian University, School of Medicine, Athens, Greece
| | - S Baum
- Department of Dermatology, Sheba Medical Center, Ramat Gan, Israel and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - T Zeeli
- Department of Dermatology, Tel Aviv Sourasky Medical Center and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - J S Kern
- Dermatology Department, The Royal Melbourne Hospital, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Victoria, Australia
| | - R Sinclair
- University of Melbourne and Sinclair Dermatology, Victoria, Australia
| | - A Neale
- Principia Biopharma Inc, a Sanofi Company, South San Francisco, California, United States
| | - P Arora
- Principia Biopharma Inc, a Sanofi Company, South San Francisco, California, United States
| | - P B Sugerman
- Global Medical Affairs, Sanofi Genzyme, Cambridge, Massachusetts, United States
| | - G Shi
- Biostatistics, Sanofi US Services Inc., Bridgewater, New Jersey, United States
| | - V P Werth
- University of Pennsylvania Perelman School of Medicine and Corporal Michael J. Crescenz VAMC, Philadelphia, Pennsylvania, United States
| | - F Caux
- Department of Dermatology, Groupe Hospitalier Paris Seine-Saint-Denis, AP-, HP, Bobigny, France
| | - P Joly
- Department of Dermatology, Rouen University Hospital, Centre de Référence des Maladies Bulleuses Autoimmunes, and INSERM U1234, Normandie University, Rouen, France
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Kay J, Zeng X, Chen L, Tang K, Shi G, Liu L, Wu L, Liu Y, Hu J, Liu S, Yi Z, Kim SH, Bae Y, Suh J, Rhee S, Lee S, Hwang C. AB0339 EFFICACY, PHARMACOKINETICS AND SAFETY BETWEEN CT-P13 AND CHINA-APPROVED INFLIXIMAB: 54 WEEK RESULT FROM A PHASE III RANDOMIZED CONTROLLED TRIAL IN CHINESE PATIENTS WITH ACTIVE RHEUMATOID ARTHRITIS. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.1677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundCT-P13 is an approved biosimilar to EU-approved and US-licensed Infliximab (INX) for the indications of rheumatoid arthritis (RA), adult and paediatric Crohn’s disease, adult and paediatric ulcerative colitis, ankylosing spondylitis, psoriatic arthritis and psoriasis.ObjectivesThe purpose of this study was to demonstrate equivalence of efficacy and compare PK and safety profiles of CT-P13 and China-approved INX.MethodsIn this randomized, double blinded, multicenter, parallel-group, phase III study, patients with active RA who had been responding inadequately to methotrexate for at least 3 months, were randomized to receive either CT-P13 or China-approved INX. Patients were treated with doses of 3 mg/kg at Weeks 0, 2, 6, then every 8 weeks up to Week 54. Prior to dosing at Week 30, patients randomized to China-approved INX underwent a second randomization either to continue China-approved INX or to switch to CT-P13 at Week 30. Results of patients who underwent transition to CT-P13 were included in the China-approved INX group. The primary efficacy endpoint was change in DAS28 (CRP) from baseline to Week 14, which was analyzed using an analysis of covariance. Equivalence was determined if the 90% CI for the estimate of treatment difference was entirely contained within the predefined equivalence margin of -0.6 to 0.6.Results270 patients were randomly assigned to 2 treatment groups in a 1:1 ratio (136 and 134 patients in the CT-P13 and China-approved INX groups, respectively) and 184 patients completed the study. The least square mean change (standard error) of DAS28 (CRP) from baseline to Week 14, -1.566 [0.1419] and -1.547 [0.1491], was similar between the CT-P13 and China-approved INX groups, respectively. The 90% CI for the estimate of treatment difference (-0.29, 0.25) was contained within the predefined equivalence margin, which demonstrated therapeutic equivalence between the groups. The mean actual values for DAS28 (CRP) decreased from baseline to Week 54 and were similar between the groups (Figure 1). Additional efficacy endpoints, including ACR responses (ACR20 at Week 14; 60.6%, 54.8% and at Week 54; 65.1%, 60.6% in the CT-P13 and China-approved INX groups, respectively), EULAR responses, CDAI, and SDAI, were similar between the groups, even after switching at Week 30. During the study, mean serum INX concentrations were similar between the groups. Between Weeks 14 and 22, mean (percent coefficient of variation) AUCτ were 11156333.615 (44.796) ng·h/mL and 11462884.280 (51.057) ng·h/mL, and Cmax,ss were 66577.2 (31.4) ng/mL and 66356.1 (21.0) ng/mL in the CT-P13 and China-approved INX groups, respectively, which were similar between the groups. Most treatment-emergent AEs were grade 1 or 2 in intensity. One malignancy was reported in the CT-P13 group and no deaths were reported. The proportions of patients with anti-drug antibodies were similar between the groups, even after switching at Week 30. The overall safety profile of CT-P13 was comparable to that of China-approved INX and no new safety issues were observed (Table 1).Table 1.Summary of Safety ResultsNumber of patients (%)CT-P13 (N=136)China-approved Infliximab (N=133)Treatment-emergent AEsTotal115 (84.6%)107 (80.5%)Related97 (71.3%)86 (64.7%)Treatment-emergent serious AEsTotal17 (12.5%)12 (9.0%)Related10 (7.4%)6 (4.5%)Infusion related reaction/ hypersensitivity/anaphylactic reactionsTotal(=Related)20 (14.7%)19 (14.3%)InfectionsTotal45 (33.1%)43 (32.3%)Related36 (26.5%)40 (30.1%)Note: Summary is presented for the safety population who received at least 1 dose (full or partial) of study drug.ConclusionThe study demonstrated that efficacy of CT-P13 is equivalent to that of China-approved INX. Also, the PK and safety profiles of CT-P13 were comparable to those of China-approved INX. No loss of efficacy or difference in safety or immunogenicity was observed after switching from China-approved INX to CT-P13 at Week 30.Disclosure of InterestsJonathan Kay Consultant of: Boehringer Ingelheim GmbH; Pfizer Inc.; Samsung Bioepis; Sandoz Inc., Grant/research support from: Pfizer Inc. (paid to UMass Chan Medical School), Xiaofeng Zeng Grant/research support from: Celltrion, Inc, Lin Chen Grant/research support from: Celltrion, Inc, Kaijiang Tang Grant/research support from: Celltrion, Inc, guixiu shi Grant/research support from: Celltrion, Inc, Lin Liu Grant/research support from: Celltrion, Inc, Lijun Wu Grant/research support from: Celltrion, Inc, Yi Liu Grant/research support from: Celltrion, Inc, Jiankang Hu Grant/research support from: Celltrion, Inc, Shengyun Liu Grant/research support from: Celltrion, Inc, Zheng Yi Grant/research support from: Celltrion, Inc, Sung Hyun Kim Employee of: Celltrion, Inc, YunJu Bae Employee of: Celltrion, Inc, JeeHye Suh Employee of: Celltrion, Inc, Seungjin Rhee Employee of: Celltrion, Inc, SeulGi Lee Employee of: Celltrion, Inc, Chankyoung Hwang Employee of: Celltrion, Inc
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Huang J, Wang Y, Zhang C, Hu X, Wang P, Shi G, Dong L, Zhang J, Kong W, Chen Y, Ye D, Xia D, Guo J, Xue W, Huang Y, He Z. Surgical management and oncologic outcomes for local recurrence of renal cell carcinoma after radical nephrectomy. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00460-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Shi G, Hao D, Zhang L, Qin J, Tian G, Ma B, Zhou X. Endocytosis-associated patterns in nerve regeneration after peripheral nerve injury. J Orthop Translat 2021; 31:10-19. [PMID: 34760620 PMCID: PMC8551787 DOI: 10.1016/j.jot.2021.09.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 05/18/2021] [Revised: 08/29/2021] [Accepted: 09/13/2021] [Indexed: 11/25/2022] Open
Abstract
Background Clearance of myelin debris and remyelination of myelin are necessary steps for peripheral nerve remodeling and regeneration. It has yet to be clarified which genes or proteins are involved in endocytosis or exocytosis in the removal of myelin debris during peripheral nerve repair. Methods For this project, a rat model of subacute stage of sciatic nerve injury was established first. Subsequently, normal Schwann cells (NSCs) and activated Schwann cells (ASCs) were harvest before and after peripheral nerve injury (PNI). Following methylated DNA immunoprecipitation sequencing (MeDIP-seq) and tandem mass tags (TMT) labeling analysis of NSCs and ASCs, what common biomarkers changes in peripheral nervous systems remain to be elucidated. Results A total of 14,770 different expression genes (DEGs) and 3249 different expression proteins (DEPs) were screened between ASCs and NSCs. For the exosomes, the diameter and particles concentration of exosomes were 141.7 nm and 2.97 × 107 particles/mL, respectively. The size distribution of exosomes was 50–200 nm. ASCs showed higher cellular uptake ability than the NSCs by cellular uptake test. Moreover, RAB7A, ARF6, ARF1, VPS45, RAB11A, DNM3, and NEDD4 were the core markers and may control the molecular mechanism of the Endocytosis pathway. Conclusion These biomarkers may play significant roles in the initiation phase of demyelination and axon regeneration. The translational potential of this article This study explores that the endocytosis-associated patterns of Schwann cells may be new therapeutic strategy for nerve tissue engineering and nerve regeneration.
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Affiliation(s)
- Guidong Shi
- Department of Orthopaedics, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Shandong University Centre for Orthopaedics, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Dingyu Hao
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China
| | - Lei Zhang
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China
| | - Jia Qin
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China
| | - Guangyuan Tian
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China
| | - Boyuan Ma
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China
| | - Xianhu Zhou
- The Affiliated Hospital of Medical School, Ningbo University, 247 People Road, Jiangbei District, Ningbo, Zhejiang, China
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Shi G, Wang Y, Wang Z, Thoreson AR, Jacobson DS, Amadio PC, Behfar A, Moran SL, Zhao C. A novel engineered purified exosome product patch for tendon healing: An explant in an ex vivo model. J Orthop Res 2021; 39:1825-1837. [PMID: 32936480 PMCID: PMC9235100 DOI: 10.1002/jor.24859] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 09/04/2020] [Accepted: 09/14/2020] [Indexed: 02/04/2023]
Abstract
Reducing tendon failure after repair remains a challenge due to its poor intrinsic healing ability. The purpose of this study is to investigate the effect of a novel tissue-engineered purified exosome product (PEP) patch on tendon healing in a canine ex vivo model. Lacerated flexor digitorum profundus (FDP) tendons from three canines' paws underwent simulated repair with Tisseel patch alone or biopotentiated with PEP. For the ex vivo model, FDP tendons were randomly divided into three groups: FDP tendon repair alone group (Control), Tisseel patch alone group, and the Tisseel plus PEP (TEPEP) patch group. Following 4 weeks of tissue culture, the failure load, stiffness, histology, and gene expression of the healing tendon were evaluated. Transmission electron microscopy revealed that in exosomes of PEP the diameters ranged from 93.70 to 124.65 nm, and the patch release test showed this TEPEP patch could stably release the extracellular vesicle over 2 weeks. The failure strength of the tendon in the TEPEP patch group was significantly higher than that of the Control group and Tisseel alone group. The results of histology showed that the TEPEP patch group had the smallest healing gap and the largest number of fibroblasts on the surface of the injured tendon. Quantitative reverse transcription polymerase chain reaction showed that TEPEP patch increased the expression of collagen type III, matrix metallopeptidase 2 (MMP2), MMP3, MMP14, and reduced the expression of transforming growth factor β1, interleukin 6. This study shows that the TEPEP patch could promote tendon repair by reducing gap formation and inflammatory response, increasing the activity of endogenous cells, and formation of type III collagen.
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Affiliation(s)
- Guidong Shi
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA,Tianjin Medical University, Tianjin, China
| | - Yicun Wang
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | - Zhanwen Wang
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | | | | | - Peter C. Amadio
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | - Atta Behfar
- Van Cleve Cardiac Regenerative Medicine Program, Center for Regenerative Medicine, Department of Cardiovascular Diseases, Mayo Clinic, Rochester, MN, USA
| | - Steven L. Moran
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | - Chunfeng Zhao
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA,Correspondence: Chunfeng Zhao, M.D. Department of Orthopedic Surgery, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA, Phone: 507-538-1296 /
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Niu N, Wang H, Shi G, Liu X, Liu H, Liu Q, Yang M, Wang L, Zhang L. Genome scanning reveals novel candidate genes for vertebral and teat number in the Beijing Black Pig. Anim Genet 2021; 52:734-738. [PMID: 34192356 DOI: 10.1111/age.13111] [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] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/16/2021] [Indexed: 11/28/2022]
Abstract
Porcine vertebral and teat numbers are variable and important economic traits in pig production. However, the quantitative trait loci (QTL) and candidate genes for both of these traits in the Beijing Black Pig are not yet known. In the present study, number of vertebrae and number of teats were obtained for 891 individuals of the Beijing Black Pig and genotyped using the Illumina Porcine 50 K BeadChip. Genome scanning was performed to detect associated variants and candidate genes for both traits using a genome-wide association study by tassel software. For vertebral number, 15 significant SNPs were located on SSC7. According to linkage disequilibrium analysis on SSC7, a haplotype block of 221 kb from 97.4 to 97.6 Mb was shown to contain a good candidate gene ABCD4. Interestingly, on SSC12, we recorded a novel QTL containing three significant SNPs and 34 annotated genes from 24.0 to 25.7 Mb for vertebral number. Of the 34 genes, nine Hox family genes (HOXB 1-7, 9, and 13) were found to be good candidate genes. Using the 34 genes, a gene ontology analysis was performed to detect enrichment of anterior/posterior pattern specification. For teat number, a novel chromosome-wide significant QTL was identified on SSC10. In this QTL region, one significant SNP was identified. The nearest gene, NTRK2, was regarded as a candidate gene. The present results expanded the QTL for vertebral and teat numbers and provided useful molecular markers for breeding in the Beijing Black Pig population.
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Affiliation(s)
- N Niu
- Key Laboratory of Animal (Poultry) Genetics Breeding and Reproduction, Ministry of Agriculture, Department of Animal Genetics and Breeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - H Wang
- Beijing Heiliu Stockbreeding Technology Co. Ltd, Beijing, 102211, China
| | - G Shi
- Beijing Heiliu Stockbreeding Technology Co. Ltd, Beijing, 102211, China
| | - X Liu
- Beijing Heiliu Stockbreeding Technology Co. Ltd, Beijing, 102211, China
| | - H Liu
- Beijing Heiliu Stockbreeding Technology Co. Ltd, Beijing, 102211, China
| | - Q Liu
- Key Laboratory of Animal (Poultry) Genetics Breeding and Reproduction, Ministry of Agriculture, Department of Animal Genetics and Breeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - M Yang
- Key Laboratory of Animal (Poultry) Genetics Breeding and Reproduction, Ministry of Agriculture, Department of Animal Genetics and Breeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - L Wang
- Key Laboratory of Animal (Poultry) Genetics Breeding and Reproduction, Ministry of Agriculture, Department of Animal Genetics and Breeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - L Zhang
- Key Laboratory of Animal (Poultry) Genetics Breeding and Reproduction, Ministry of Agriculture, Department of Animal Genetics and Breeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
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Cheng L, Zhang SX, Song S, Zheng C, Sun X, Feng S, Kong T, Shi G, Li X, He PF, Yu Q. POS0458 IDENTIFICATION OF HUB GENES AND MOLECULAR PATHWAYS IN PATIENTS WITH RHEUMATOID ARTHRITIS BY BIOINFORMATICS ANALYSIS. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.1938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Rheumatoid arthritis (RA) is a chronic, inflammatory synovitis based systemic disease of unknown etiology1. The genes and pathways in the inflamed synovium of RA patients are poorly understood.Objectives:This study aims to identify differentially expressed genes (DEGs) associated with the progression of synovitis in RA using bioinformatics analysis and explore its pathogenesis2.Methods:RA expression profile microarray data GSE89408 were acquired from the public gene chip database (GEO), including 152 synovial tissue samples from RA and 28 healthy synovial tissue samples. The DEGs of RA synovial tissues were screened by adopting the R software. The Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis were performed. Protein-protein interaction (PPI) networks were assembled with Cytoscape software.Results:A total of 654 DEGs (268 up-regulated genes and 386 down-regulated genes) were obtained by the differential analysis. The GO enrichment results showed that the up-regulated genes were significantly enriched in the biological processes of myeloid leukocyte activation, cellular response to interferon-gamma and immune response-regulating signaling pathway, and the down-regulated genes were significantly enriched in the biological processes of extracellular matrix, retinoid metabolic process and regulation of lipid metabolic process. The KEGG annotation showed the up-regulated genes mainly participated in the staphylococcus aureus infection, chemokine signaling pathway, lysosome signaling pathway and the down-regulated genes mainly participated in the PPAR signaling pathway, AMPK signaling pathway, ECM-receptor interaction and so on. The 9 hub genes (PTPRC, TLR2, tyrobp, CTSS, CCL2, CCR5, B2M, fcgr1a and PPBP) were obtained based on the String database model by using the Cytoscape software and cytoHubba plugin3.Conclusion:The findings identified the molecular mechanisms and the key hub genes of pathogenesis and progression of RA.References:[1]Xiong Y, Mi BB, Liu MF, et al. Bioinformatics Analysis and Identification of Genes and Molecular Pathways Involved in Synovial Inflammation in Rheumatoid Arthritis. Med Sci Monit 2019;25:2246-56. doi: 10.12659/MSM.915451 [published Online First: 2019/03/28][2]Mun S, Lee J, Park A, et al. Proteomics Approach for the Discovery of Rheumatoid Arthritis Biomarkers Using Mass Spectrometry. Int J Mol Sci 2019;20(18) doi: 10.3390/ijms20184368 [published Online First: 2019/09/08][3]Zhu N, Hou J, Wu Y, et al. Identification of key genes in rheumatoid arthritis and osteoarthritis based on bioinformatics analysis. Medicine (Baltimore) 2018;97(22):e10997. doi: 10.1097/MD.0000000000010997 [published Online First: 2018/06/01]Acknowledgements:This project was supported by National Science Foundation of China (82001740), Open Fund from the Key Laboratory of Cellular Physiology (Shanxi Medical University) (KLCP2019) and Innovation Plan for Postgraduate Education in Shanxi Province (2020BY078).Disclosure of Interests:None declared
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Sun X, Zhang SX, Song S, Kong T, Zheng C, Cheng L, Feng S, Shi G, LI X, He PF, Yu Q. AB0005 IDENTIFICATION OF KEY GENES AND PATHWAYS FOR PSORIASIS BASED ON GEO DATABASES BY BIOINFORMATICS ANALYSIS. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.1773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Psoriasis is an immune-mediated, genetic disease manifesting in the skin or joints or both, and also has a strong genetic predisposition and autoimmune pathogenic traits1. The hallmark of psoriasis is sustained inflammation that leads to uncontrolled keratinocyte proliferation and dysfunctional differentiation. And it’s also a chronic relapsing disease, which often necessitates a long-term therapy2.Objectives:To investigate the molecular mechanisms of psoriasis and find the potential gene targets for diagnosis and treating psoriasis.Methods:Total 334 gene expression data of patients with psoriasis research (GSE13355 GSE14905 and GSE30999) were obtained from the Gene Expression Omnibus database. After data preprocessing and screening of differentially expressed genes (DEGs) by R software. Online toll Metascape3 was used to analyze Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis of DEGs. Interactions of proteins encoded by DEGs were discovered by Protein-protein interaction network (PPI) using STRING online software. Cytoscape software was utilized to visualize PPI and the degree of each DEGs was obtained by analyzing the topological structure of the PPI network.Results:A total of 611 DEGs were found to be differentially expressed in psoriasis. GO analysis revealed that up-regulated DEGs were mostly associated with defense and response to external stimulus while down-regulated DEGs were mostly associated with metabolism and synthesis of lipids. KEGG enrichment analysis suggested they were mainly enriched in IL-17 signaling, Toll-like receptor signaling and PPAR signaling pathways, Cytokine-cytokine receptor interaction and lipid metabolism. In addition, top 9 key genes (CXCL10, OASL, IFIT1, IFIT3, RSAD2, MX1, OAS1, IFI44 and OAS2) were identified through Cytoscape.Conclusion:DEGs of psoriasis may play an essential role in disease development and may be potential pathogeneses of psoriasis.References:[1]Boehncke WH, Schon MP. Psoriasis. Lancet 2015;386(9997):983-94. doi: 10.1016/S0140-6736(14)61909-7 [published Online First: 2015/05/31].[2]Zhang YJ, Sun YZ, Gao XH, et al. Integrated bioinformatic analysis of differentially expressed genes and signaling pathways in plaque psoriasis. Mol Med Rep 2019;20(1):225-35. doi: 10.3892/mmr.2019.10241 [published Online First: 2019/05/23].[3]Zhou Y, Zhou B, Pache L, et al. Metascape provides a biologist-oriented resource for the analysis of systems-level datasets. Nat Commun 2019;10(1):1523. doi: 10.1038/s41467-019-09234-6 [published Online First: 2019/04/05].Acknowledgements:This project was supported by National Science Foundation of China (82001740), Open Fund from the Key Laboratory of Cellular Physiology (Shanxi Medical University) (KLCP2019) and Innovation Plan for Postgraduate Education in Shanxi Province (2020BY078).Disclosure of Interests:None declared
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Kong T, Zhang SX, Song S, Sun X, Zheng C, Feng S, Cheng L, Shi G, Li X, He PF, Yu Q. POS0742 SCREENING AND BIOINFORMATICS ANALYSIS OF HUB GENES AND PATHWAYS FOR PRIMARY SJÖGREN’S SYNDROME BASED ON GEO DATABASE. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Primary Sjögren’s syndrome (pSS) is an autoimmune disease that featured as lymphoplasmacytic infiltration of the exocrine glands leading to sicca symptoms1. However, its underlying molecular mechanisms remain elusive.Objectives:This study aims to identify differentially expressed genes (DEGs) and pathways associated with the progression of pSS using bioinformatics analysis and explore its pathogenesis.Methods:The pSS-associated gene chip data set GSE66795 was obtained from the Gene Expression Omnibus (GEO) database, which included 131 cases of fully-phenotyped pSS patients’ whole blood samples and 29 cases of control samples. DEGs were screened Using R software. Online tool Metascape2 was used to make Gene Ontology (GO) and KEGG pathway enrichment. The PPI network was performed using String database. Hub genes were identified by Cytoscape.Results:A total of 108 DEGs were captured, including 101 up-regulated genes and 7 down-regulated genes. GO enrichment showed that these DEGs were primarily enriched in defense response to virus, response to interferon-gamma, regulation of innate immune response, response to interferon-beta, double-stranded RNA binding, response to interferon-alpha. KEGG pathway enrichment analysis showed these DEGs were principally enriched in Influenza A, RIG-I-like receptor signaling pathway, necroptosis, Staphylococcus aureus infection. Finally, 9 hub genes (STAT1, IRF7, OAS2, GBP1, OAS1, IFIT3, IFIH1, OAS3, DDX60) had highest degree value.Conclusion:The findings identified molecular mechanisms and the key hub genes that may involve in the occurrence and development of pSS.References:[1]Francois H, Mariette X. Renal involvement in primary Sjogren syndrome. Nat Rev Nephrol 2016;12(2):82-93. doi: 10.1038/nrneph.2015.174 [published Online First: 2015/11/17].[2]Zhou Y, Zhou B, Pache L, et al. Metascape provides a biologist-oriented resource for the analysis of systems-level datasets. Nat Commun 2019;10(1):1523. doi: 10.1038/s41467-019-09234-6 [published Online First: 2019/04/05].Acknowledgements:This project was supported by National Science Foundation of China (82001740), Open Fund from the Key Laboratory of Cellular Physiology (Shanxi Medical University) (KLCP2019) and Innovation Plan for Postgraduate Education in Shanxi Province (2020BY078).Disclosure of Interests:None declared
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Abstract
Background:Gastrointestinal microbiota, particularly gut microbiota is an indispensable environmental factor in the progression of Rheumatoid Arthritis (RA). Understanding the diversity and function of the intestinal flora in patients with RA is part and parcel to understand the relationship between microbiota and human health.Objectives:This study aimed to identify the diversity and function of the intestinal flora in patients with RA.Methods:A total of 166 participants were recruited in this study, comprising 93 RA patients and 73 age and sex-matched healthy controls (HCs). Microbial genome was extracted from approximately 250mg fresh fecal samples from all participants using QIAamp PowerFecal DNA Kit (Qiagen). The V3-V4 variable regions of bacterial 16S rRNA genes were sequenced with the Illumina Miseq PE300 system. Sequence data were compiled and processed using Qiime2. Sequences were grouped into operational taxonomic units (ASVs)1. Microbial diversity was estimated by the Simpson index. PICRUSt2 was used to predict KEGG functional pathway differences between RA and HC intestinal flora functions based on ASV Tables2. Linear Discriminant Analysis (LDA) Effect Size (LEfSe) analysis was performed using LEfSe software to discovery the different intestinal flora and functions between RA and healthy.Results:The alpha-diversity index of Simpson the microbiome in RA patients was lower than that of HCs (Figure 1a, P <0.05). Compared with HCs, bacterial Bacilli and Lactobacillales were more abundant in patients with RA (Figure 1b, P <0.05). In contrast, Marinifilaceae, Peptococcaceae, Peptococcales and Phascolarcto bacterium were less abundant in the RA group (Figure 1b, P <0.05). As shown in Figure 1c, propanoate metabolism, taurine and hypotaurine metabolism, ascorbate and aldarate metabolism, biosynthesis of siderophore group nonribosomal peptides and glutathione metabolism were the most significantly altered pathways in RA (P <0.05). Epithelial cell signaling in Helicobacter pylori infection, RNA transport, RNA degradation and plant-pathogen interaction were the most significantly altered pathways in HC (P <0.05). The different KEGG metabolic pathways were mainly concentrated in carbohydrate and amino acid metabolism.Conclusion:Gut dysbiosis in RA patients mainly characterized by reduced the diversity and impaired abundance of the intestinal flora, which severely influence the metabolism of gastrointestinal microbiota. The discovery of the associated intestinal microbiota of RA may provide a new idea for RA treatment.References:[1]Han L, Zhao K, Li Y, et al. A gut microbiota score predicting acute graft-versus-host disease following myeloablative allogeneic hematopoietic stem cell transplantation. Am J Transplant 2020;20(4):1014-27. doi: 10.1111/ajt.15654 [published Online First: 2019/10/13][2]Liss MA, White JR, Goros M, et al. Metabolic Biosynthesis Pathways Identified from Fecal Microbiome Associated with Prostate Cancer. Eur Urol 2018;74(5):575-82. doi: 10.1016/j.eururo.2018.06.033 [published Online First: 2018/07/17]Acknowledgements:This project was supported by National Science Foundation of China (82001740), Open Fund from the Key Laboratory of Cellular Physiology (Shanxi Medical University) (KLCP2019) and Innovation Plan for Postgraduate Education in Shanxi Province (2020BY078).Disclosure of Interests:None declared
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Lin Y, Cheng L, Liu Y, Wang Y, Wang Q, Wang HL, Shi G, Li JS, Wang QN, Yang QM, Chen S, Su XL, Yang Y, Jiang M, Hu X, Fan P, Fang C, Zhou ZG, Dai L, Deng HX. Intestinal epithelium-derived BATF3 promotes colitis-associated colon cancer through facilitating CXCL5-mediated neutrophils recruitment. Mucosal Immunol 2021; 14:187-198. [PMID: 32467604 DOI: 10.1038/s41385-020-0297-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 04/24/2020] [Accepted: 05/01/2020] [Indexed: 02/05/2023]
Abstract
Inflammation is a critical player in the development and progression of colon cancer. Basic leucine zipper transcription factor ATF-like 3 (BATF3) plays an important role in infection and tumor immunity through regulating the development of conventional type 1 dendritic cells (cDC1s). However, the function of BATF3 in colitis and colitis-associated colon cancer (CAC) remains unclear. Here, BATF3 wild-type and knockout mice were used to construct an AOM/DSS-induced CAC model. In addition, DSS-induced chronic colitis, bone marrow cross-transfusion (BMT), neutrophil knockout, and other animal models were used for in-depth research. We found that BATF3 deficiency in intestinal epithelial cells rather than in cDC1s inhibited CAC, which was depended on inflammatory stimulation. Mechanistically, BATF3 directly promoted transcription of CXCL5 by forming a heterodimer with JunD, and accelerated the recruitment of neutrophils through the CXCL5-CXCR2 axis, ultimately increasing the occurrence and development of CAC. Tissue microarray and TCGA data also indicated that high expression of BATF3 was positively correlated with poor prognosis of colorectal cancer and other inflammation-related tumors. In summary, our results demonstrate that intestinal epithelial-derived BATF3 relies on inflammatory stimulation to promote CAC, and BATF3 is expected to be a novel diagnostic indicator for colitis and CAC.
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Affiliation(s)
- Y Lin
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, Sichuan, China
| | - L Cheng
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, Sichuan, China
| | - Y Liu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, Sichuan, China
| | - Y Wang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, Sichuan, China
| | - Q Wang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, Sichuan, China
| | - H L Wang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, Sichuan, China
| | - G Shi
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, Sichuan, China
| | - J S Li
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, Sichuan, China
| | - Q N Wang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, Sichuan, China
| | - Q M Yang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, Sichuan, China
| | - S Chen
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, Sichuan, China
| | - X L Su
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, Sichuan, China
| | - Y Yang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, Sichuan, China
| | - M Jiang
- Department of Medical Oncology, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, Sichuan, China.
| | - X Hu
- West China Biobanks, Department of Clinical Research Management and West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - P Fan
- West China Biobanks, Department of Clinical Research Management and West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - C Fang
- Department of Gastrointestinal Surgery, West China Hospital and State Key Laboratory of Biotherapy, Sichuan University, Chengdu, Sichuan, China
| | - Z G Zhou
- Department of Gastrointestinal Surgery, West China Hospital and State Key Laboratory of Biotherapy, Sichuan University, Chengdu, Sichuan, China
| | - L Dai
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, Sichuan, China.
| | - H X Deng
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, Sichuan, China.
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Zuo S, Shi G, Fan J, Fan B, Zhang X, Liu S, Hao Y, Wei Z, Zhou X, Feng S. Identification of adhesion-associated DNA methylation patterns in the peripheral nervous system. Exp Ther Med 2020; 21:48. [PMID: 33273976 PMCID: PMC7706384 DOI: 10.3892/etm.2020.9479] [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: 04/24/2020] [Accepted: 08/26/2020] [Indexed: 11/06/2022] Open
Abstract
Schwann cells are unique glial cells in the peripheral nervous system. These cells provide a range of cytokines and nutritional factors to maintain axons and support axonal regeneration. However, little is known concerning adhesion-associated epigenetic changes that occur in Schwann cells after peripheral nerve injury (PNI). In the present study, adhesion-associated DNA methylation biomarkers were assessed between normal and injury peripheral nerve. Specifically, normal Schwann cells (NSCs) and activated Schwann cells (ASCs) were obtained from adult Wistar rats. After the Schwann cells were identified, proliferation and adhesion assays were used to assess differences between NSCs and ASCs. Methylated DNA immunoprecipitation-sequencing and bioinformatics analysis were used to identify and analyze the differentially methylated genes. Reverse transcription-quantitative PCR was performed to assess the expression levels of adhesion-associated genes. In the present study, the proliferation and adhesion assays demonstrated that ASCs had a more robust proliferative activity and adhesion compared with NSCs. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes enrichment analyses were performed to identify methylation-associated biological processes and signaling pathways. Protein-protein interaction network analysis revealed that Fyn, Efna1, Jak2, Vav3, Flt4, Epha7, Crk, Kitlg, Ctnnb1 and Ptpn11 were potential markers for Schwann cell adhesion. The expression levels of several adhesion-associated genes, such as vinculin, BCAR1 scaffold protein, collagen type XVIII α1 chain and integrin subunit β6, in ASCs were altered compared with those in NSCs. The current study analyzed adhesion-associated DNA methylation patterns of Schwann cells and identified candidate genes that may potentially regulate Schwann cell adhesion in Wistar rats before and after PNI.
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Affiliation(s)
- Shanhuai Zuo
- Department of Radiology, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China
| | - Guidong Shi
- Department of Orthopedics, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China.,International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Department of Orthopedics, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China
| | - Jianchao Fan
- Department of Orthopedics, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China.,International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Department of Orthopedics, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China
| | - Baoyou Fan
- Department of Orthopedics, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China.,International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Department of Orthopedics, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China
| | - Xiaolei Zhang
- Department of Orthopedics, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China.,International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Department of Orthopedics, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China
| | - Shen Liu
- Department of Orthopedics, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China.,International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Department of Orthopedics, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China
| | - Yan Hao
- Department of Orthopedics, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China.,International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Department of Orthopedics, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China
| | - Zhijian Wei
- Department of Orthopedics, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China.,International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Department of Orthopedics, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China
| | - Xianhu Zhou
- Department of Orthopedics, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China.,International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Department of Orthopedics, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China
| | - Shiqing Feng
- Department of Orthopedics, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China.,International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Department of Orthopedics, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China
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Du S, Chen Y, Chiang C, Shi G, Zhang W, Yang P, Hu Y, Chan A, Kong F, Zeng Z. Increased Serum Type I Interferon Level May Predict Outcome in Hepatocellular Carcinoma Patients Treated with Radiotherapy. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Zhou J, Fan J, Shi G, Huang X, Wu D, Yang G, Ge N, Hou Y, Sun H, Huang X, He Y, Qiu S, Yang X, Xu Y, Gao Q, Huang C, Lu J, Sun Q, Liang F. 56P Anti-PD1 antibody toripalimab, lenvatinib and gemox chemotherapy as first-line treatment of advanced and unresectable intrahepatic cholangiocarcinoma: A phase II clinical trial. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.034] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Shi G, Kaffenberger B, Semenov Y, Choi J, Williams K, Alhariri J, Kwatra S. 468 Clinical characteristics, etiology, and treatment of erythema multiforme at a tertiary care center. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.476] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Li MD, Yu Q, Fu JL, Li YR, Shi G. Tuberous sclerosis complex with multisystem manifestations. J BIOL REG HOMEOS AG 2020; 34:1045-1047. [PMID: 32660214 DOI: 10.23812/20-107-l-17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Affiliation(s)
- M D Li
- Department of Oncology and Hematology, The Second Hospital of Jilin University, Changchun, Jilin, People's Republic of China
| | - Q Yu
- Department of Oncology and Hematology, The Second Hospital of Jilin University, Changchun, Jilin, People's Republic of China
| | - J L Fu
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, Jilin, People's Republic of China
| | - Y R Li
- Department of Oncology and Hematology, The Second Hospital of Jilin University, Changchun, Jilin, People's Republic of China
| | - G Shi
- Department of Oncology and Hematology, The Second Hospital of Jilin University, Changchun, Jilin, People's Republic of China
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Shi G, Subramanian S, Cao Q, Demehri S, Siewerdsen JH, Zbijewski W. Application of a Novel Ultra-High Resolution Multi-Detector CT in Quantitative Imaging of Trabecular Microstructure. Proc SPIE Int Soc Opt Eng 2020; 11317:113171E. [PMID: 33597792 PMCID: PMC7885907 DOI: 10.1117/12.2552385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
PURPOSE To evaluate the performance of a novel ultra-high resolution multi-detector CT scanner (Canon Aquilion Precision UHR CT), capable of visualizing ~150 μm details, in quantitative assessment of bone microarchitecture. Compared to conventional CT, the spatial resolution of UHR CT begins to approach the size of the trabeculae. This might enable measurements of microstructural correlates of osteoporosis, osteoarthritis, and other bone disease. METHODS The UHR CT system features a 160-row x-ray detector with 250×250 μm pixels (measured at isocenter) and a custom-designed x-ray source with a 0.4×0.5 mm focal spot. Visualization of high contrast details down to ~150 μm has been achieved on this device, which is now commercially available for clinical use. To evaluate the performance of UHR CT in quantification of bone microstructure, we imaged a variety of human bone samples (including ulna, radius, and vertebrae) embedded in a ~16 cm diameter plastic cylinder and in an anthropomorphic thorax phantom (QRM-Thorax, QRM Gmbh). Helical UHR CT acquisitions (120 kVp tube voltage) were acquired at scan exposures of 375 mAs - 5 mAs. For comparison, the samples were also imaged using a Normal Resolution (NR) mode available on the scanner, involving 500 μm slice thickness, exposure of 50 mAs, and a focal spot of 0.6×1.3 mm. We obtained micro-CT (μCT) of the bone samples at ~28 μm voxel size as a gold-standard reference. Geometric measurements of bone microstructure were performed in 17 regions-of-interests (ROIs) distributed throughout the bones of the phantoms; image registration was used to place the ROIs at corresponding locations in the UHR CT and NR CT. Trabecular thickness Tb.Th, spacing Tb.Sp, and Bone Volume fraction BvTv were obtained. The UHR and NR imaging protocols were compared terms of correlations to μCT and error of trabecular measurements. The effect of dose on trabecular morphometry was also studied for the UHR CT. Furthermore, we evaluated the sensitivity of texture features of trabecular bone (recently proposed as an alternative to geometric indices of microstructure) to imaging protocol. Image texture evaluation was performed using ~150 regions of interest (ROIs) across all bone samples. Three-dimensional Gray Level Co-occurrence Matrix (GLCM) and Gray Level Run Length Matrix (GLRM) features were extracted for each ROI. We analyzed correlation and concordance correlation coefficient (CCC) of the mean ROI values of texture features obtained using the UHR and NR modes. RESULTS UHR CT reconstructions of bone samples clearly demonstrated improved visualization of the trabeculae compared to NR CT. UHR CT achieved substantially better correlations for all three metrics of bone microstructure, in particular for BvTv (correlation coefficient of 0.91 for UHR CT compared to 0.84 for NR CT) and TbSp (correlation of 0.74 for UHR CT and 0.047 for NR CT). The error obtained with UHR CT was generally smaller than that of NR CT. For TbSp, the mean deviation from μCT (averaged across all bone samples) was only ~0.07 for UHR CT, compared to 0.25 for NR CT. Analysis of reproducibility of texture features of trabecular bone between UHR CT and NR CT revealed fair correlations (>0.7) for the majority of GLCM features, but relatively poor CCC (e.g. 0.02 for Energy and 0.04 for Entropy). The magnitude of texture metrics is particularly affected by the enhanced spatial resolution of UHR CT. CONCLUSION The recently introduced UHR CT achieves improved correlation and reduced error in measurements of trabecular bone microstructure compared to conventional resolution CT. Future development of diagnostic strategies based on textural biomarkers derived from UHR CT will need to account for potential sensitivity of texture features to image resolution.
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Affiliation(s)
- G Shi
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD USA 21205
| | - S Subramanian
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD USA 21205
| | - Q Cao
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD USA 21205
| | - S Demehri
- Russell H. Morgan Department of Radiology, Johns Hopkins University, Baltimore, MD USA 21287
| | - J H Siewerdsen
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD USA 21205
- Russell H. Morgan Department of Radiology, Johns Hopkins University, Baltimore, MD USA 21287
| | - W Zbijewski
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD USA 21205
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Shi G, Zhou X, Wang X, Zhang X, Zhang P, Feng S. Signatures of altered DNA methylation gene expression after central and peripheral nerve injury. J Cell Physiol 2019; 235:5171-5181. [PMID: 31691285 DOI: 10.1002/jcp.29393] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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: 06/02/2019] [Accepted: 10/07/2019] [Indexed: 01/09/2023]
Abstract
Nerve damage can lead to movement and sensory dysfunction, with high morbidity and disability rates causing severe burdens on patients, families, and society. DNA methylation is a kind of epigenetics, and a great number of previous studies have demonstrated that DNA methylation plays an important role in the process of nerve regeneration and remodeling. However, compared with the central nervous system, the peripheral nervous system shows stronger recovery after injury, which is related to the complex microenvironment and epigenetic changes occurring at the site of injury. Therefore, what common epigenetic changes between the central and peripheral nervous systems remain to be elucidated. We first screened differential methylation genes after spinal cord injury and sciatic nerve injury using whole-genome bisulfite sequencing and methylated DNA immunoprecipitation sequencing, respectively. Subsequently, a total of 16 genes had the same epigenetic changes after spinal cord injury and sciatic nerve injury. The Gene Ontology analysis and Kyoto Encyclopedia of Genes and Genomes enrichment analysis were performed to identify the critical biological processes and pathways. Furthermore, a protein-protein interaction network analysis indicated that Dnm3, Ntrk3, Smurf1, Dpysl2, Kalrn, Shank1, Dlg2, Arsb, Reln, Bmp5, Numbl, Prickle2, Map6, and Htr7 were the core genes. These outcomes may provide novel insights into the molecular mechanism of the subacute phase of nerve injury. These verified genes can offer potential diagnostic and therapeutic targets for nerve injury.
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Affiliation(s)
- Guidong Shi
- Department of Anatomy and Histology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China.,Key Laboratory of Hormones and Development (Ministry of Health), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University, Tianjin, China.,Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China.,International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China
| | - Xianhu Zhou
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China.,International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China
| | - Xu Wang
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China.,International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China
| | - Xiaolei Zhang
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China.,International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China
| | - Ping Zhang
- Department of Anatomy and Histology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China.,Key Laboratory of Hormones and Development (Ministry of Health), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University, Tianjin, China
| | - Shiqing Feng
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China.,International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China
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Cai F, Shao C, Zhang Y, Bao Z, Li Z, Shi G, Bao M, Zhang J. Identification and characterisation of a novel FT orthologous gene in London plane with a distinct expression response to environmental stimuli compared to PaFT. Plant Biol (Stuttg) 2019; 21:1039-1051. [PMID: 31192516 DOI: 10.1111/plb.13019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Accepted: 06/06/2019] [Indexed: 05/26/2023]
Abstract
FLOWERING LOCUS T (FT) is a key integrator of environmental signals and internal cues, and codes for florigen-like activity which regulates the transition from vegetative to reproductive growth in flowering plants. Unlike annual plants, perennial tree species undergo several years of vegetative growth prior to the transition to the reproductive stage, as characterised by the ability to form flower buds. Thereafter, trees in temperate regions typically display an annual growth cycle involving distinct vegetative growth, flowering and dormancy stages. In London plane (Platanus acerifolia Willd.), a FT-like gene has previously been identified. Here, we report the isolation of a novel FT orthologous gene, PaFTL, and investigate the functions of PaFT and PaFTL through the analysis of expression profiles and transgenic phenotypes. PaFT displayed the highest levels of expression during tree dormancy, and similarly elevated expression levels were seen under conditions of low temperature and short days (LT/SD). In contrast, PaFTL transcripts were up-regulated during the floral transition phase, the early stages of inflorescence development and throughout the main flowering period, whereas expression levels were low and variable during dormancy and in response to LT/SD treatments. Ectopic expression of 35s::PaFTL in tobacco produced a phenotype similar to that with PaFT, namely, advanced floral initiation. Overall, the results suggest that PaFT and PaFTL have both conserved and diverse functions in floral initiation, floral development and dormancy regulation.
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Affiliation(s)
- F Cai
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, Hubei, China
| | - C Shao
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Y Zhang
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Z Bao
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Z Li
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, Hubei, China
- College of Landscape Architecture, Central South University of Forestry and Technology, Changsha, Hunan, China
| | - G Shi
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, Hubei, China
| | - M Bao
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, Hubei, China
| | - J Zhang
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, Hubei, China
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Wu B, Zhang Y, Tang H, Yang M, Long H, Shi G, Tang J, Shi X. A Novel SCN9A Mutation (F826Y) in Primary Erythromelalgia Alters the Excitability of Nav1.7. Curr Mol Med 2019; 17:450-457. [PMID: 28990532 DOI: 10.2174/1566524017666171009105029] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [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: 09/01/2017] [Revised: 09/22/2017] [Accepted: 10/03/2017] [Indexed: 11/22/2022]
Abstract
BACKGROUND Primary erythromelalgia (PE) is a dominant inherited disorder characterized by recurrent pain, redness, and warmth of the extremities that is caused by gain-of-function mutations in Nav1.7 encoding gene SCN9A. Most of the PE-causing mutations of Nav1.7 have been shown to be able to render Nav1.7-expressing cells hyperexcitable, however in most PE cases the symptoms are refractory to treatment with sodium channel blockers and the mechanism underlying the intractability has not been clearly clarified. OBJECTIVE To identify the mutation of SCN9A in a Chinese Han family with typical symptoms of PE and study the electrophysiological effect of the identified mutation. METHODS A Chinese Han family with typical symptoms of PE was collected and the proband's response to treatment was recorded. All the exons and flanking intronic sequences of SCN9A were amplified with PCR and sequenced. Several online programs were used to predict the damaging effect of variants. The functional effect of variants was studied by voltage-clamp analysis in CHO-K1 cells. RESULTS The PE symptoms of the proband are refractory to all kinds of reported medications. Sequence analysis of SCN9A showed that a novel c.2477T>A (p. F826Y) mutation co-segregated with the disease phenotype. Several online programs predicted that the F826Y mutation has a deleterious effect on the gene product. Voltage-clamp analysis showed that while compared with the wild-type channel, activation of the F826Y mutant channel was shifted by 7.7 mV in a hyperpolarizing direction, whereas steadystate inactivation was shifted by 4.3 mV in a depolarizing direction. CONCLUSION A novel disease-causing SCN9A Mutation (F826Y) was identified in a Chinese family with typical PE symptoms refractory to treatment. F826Y of Nav1.7 could render DRG neurons hyperexcitable, contributing to the pathogenesis of PE.
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Affiliation(s)
- B Wu
- Department of Medical Genetics, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China.,Department of Gastroenterology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - Y Zhang
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, China
| | - H Tang
- Department of Medical Genetics, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - M Yang
- Department of Medical Genetics, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - H Long
- Department of Dermatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - G Shi
- Department of Medical Genetics, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - J Tang
- Department of Medical Genetics, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China.,Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - X Shi
- Department of Medical Genetics, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
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Chen H, Shi G, Ruan J. Levonorgestrel-releasing intrauterine system as a therapy for repeated pelvic abscess combined with genital deformity: a case report. CLIN EXP OBSTET GYN 2019. [DOI: 10.12891/ceog4594.2019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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Zhao JW, Shi G, Ping JD, Ming L. [Study on the negative regulation of TIPE2 from peripheral blood mononuclear cells on tissue factor in patients with bronchial asthma]. Zhonghua Yi Xue Za Zhi 2019; 98:2889-2893. [PMID: 30293344 DOI: 10.3760/cma.j.issn.0376-2491.2018.36.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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 investigate the expression of tumor necrosis factor alpha-inducible protein 8 like-2 (TIPE2) and tissue factor (TF) in patients with bronchial asthma. And to explore the regulation of TIPE2 on TF. Methods: Sixty-five asthmatic patients and 40 healthy controls were selected from the First Affiliated Hospital of Zhengzhou University from July to November, 2017. The expression of TIPE2 and TF in peripheral blood mononuclear cells of asthmatic patients and healthy controls were detected by Western blot.The level of TF protein in plasma was detected by enzyme-linked immunosorbent assay. The changes of TIPE2 and TF mRNA expression in THP-1 cells stimulated by house dust mite extract were detected by real-time fluorescence quantitative PCR (RT-PCR). The recombinant adenovirus Adv-TIPE2 was constructed and transfected into THP-1 cells and the effect of over-expression TIPE2 on TF expression in THP-1 cells was detected by RT-PCR. Results: The relative level of TIPE2 protein in asthmatic patients and healthy controls was 0.025±0.010 and 0.087±0.070, while that of TF was 0.40±0.27 and 0.15±0.10, respectively. Compared with healthy controls, the levels of TIPE2 protein decreased and TF protein increased in asthmatic patients, the differences were statistically significant (t=-5.06, 9.04, P<0.05) . TIPE2 protein level was negatively correlated with TF protein level (r=-0.460 3, P<0.05). The house dust mite extract reduced the expression level of TIPE2 mRNA in THP-1 cells, but increased the level of TF mRNA expression. When the concentration was 1 μg/ml, the change of TIPE2 mRNA was the most obvious at 4 h (P<0.05). The recombinant adenovirus Adv-TIPE2 was successfully constructed. The level of TF mRNA expression in THP-1 cells over-expressing TIPE2 gene was reduced (P<0.05). Conclusion: TIPE2, a negative regulator of inflammation, has a negative control effect on TF, and may be involved in the hyper-coagulable state of bronchial asthma by regulating TF expression.
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Affiliation(s)
- J W Zhao
- Clinical Laboratory, the First Affiliated Hospital of Zhengzhou University, Key Clinical Laboratory of Henan Province, Zhengzhou 450052, China
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Rong ML, Zhang ZW, Luo Y, Shi G, Fan YM. Epidermal aquaporin-3 downexpression in symmetrical acrokeratoderma. J Eur Acad Dermatol Venereol 2019; 33:e208-e209. [PMID: 30739344 DOI: 10.1111/jdv.15476] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- M-L Rong
- Department of Dermatology, Affiliated Hospital of Guangdong Medical University, 57 Southern Renmin Avenue, Xiashan District, Zhanjiang, Guangdong, 524001, China
| | - Z-W Zhang
- Department of Dermatology, Affiliated Hospital of Guangdong Medical University, 57 Southern Renmin Avenue, Xiashan District, Zhanjiang, Guangdong, 524001, China
| | - Y Luo
- Department of Dermatology, Affiliated Hospital of Guangdong Medical University, 57 Southern Renmin Avenue, Xiashan District, Zhanjiang, Guangdong, 524001, China
| | - G Shi
- Department of Dermatology, Affiliated Hospital of Guangdong Medical University, 57 Southern Renmin Avenue, Xiashan District, Zhanjiang, Guangdong, 524001, China
| | - Y-M Fan
- Department of Dermatology, Affiliated Hospital of Guangdong Medical University, 57 Southern Renmin Avenue, Xiashan District, Zhanjiang, Guangdong, 524001, China
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Jiang Y, Zhan P, Al-Hatmi AMS, Shi G, Wei Y, van den Ende AHGG, Meis JF, Lu H, de Hoog GS. Extensive tinea capitis and corporis in a child caused by Trichophyton verrucosum. J Mycol Med 2019; 29:62-66. [PMID: 30799183 DOI: 10.1016/j.mycmed.2019.01.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2018] [Revised: 01/15/2019] [Accepted: 01/18/2019] [Indexed: 11/17/2022]
Abstract
A 3-year-old boy presented with multiple lesions of tinea corporis with dermatophytids, and subsequent inflammatory lesions with alopecia on the scalp. At the beginning, topical clobetasone butyrate was prescribed. The infection was diagnosed as dermatophytosis on the basis of positive direct microscopy and fungal culture. The etiological agent was isolated from all sampled sites and identified as Trichophyton verrucosum. Clonal nature of the infection was confirmed by random amplified polymorphic DNA (RAPD) analysis. The child lived in close vicinity of cattle. He was successfully treated with itraconazole.
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Affiliation(s)
- Y Jiang
- Department of Dermatology, The Affiliated Hospital, Guizhou Medical University, Guiyang, China; Westerdijk Fungal Biodiversity Institute, Utrecht, The Netherlands
| | - P Zhan
- Jiangxi Provincial People's Hospital, Nanchang, China.
| | - A M S Al-Hatmi
- Westerdijk Fungal Biodiversity Institute, Utrecht, The Netherlands; Directorate General of Health Services, Ibri Hospital, Ministry of Health, Muscat, Oman; Centre of Expertise in Mycology Radboud University Medical Centre/CWZ, Nijmegen, The Netherlands
| | - G Shi
- Department of Dermatology, Guizhou Provincial People's Hospital, Guiyang, China
| | - Y Wei
- Department of Dermatology, The Affiliated Hospital, Guizhou Medical University, Guiyang, China
| | | | - J F Meis
- Department of Medical Microbiology and Infectious Diseases, Canisius Wilhelmina Hospital, Nijmegen, The Netherlands; Centre of Expertise in Mycology Radboud University Medical Centre/CWZ, Nijmegen, The Netherlands
| | - H Lu
- Department of Dermatology, The Affiliated Hospital, Guizhou Medical University, Guiyang, China.
| | - G S de Hoog
- Westerdijk Fungal Biodiversity Institute, Utrecht, The Netherlands; Department of Dermatology, Guizhou Provincial People's Hospital, Guiyang, China; Centre of Expertise in Mycology Radboud University Medical Centre/CWZ, Nijmegen, The Netherlands
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Yao S, Guo J, Shi G, Zhu Y, Wang Y, Chu X, Jiang X, Jin L, Wang Z, Wang X. Association of BNP with Frailty in Elderly Population: Rugao Longevity and Ageing Study. J Nutr Health Aging 2019; 23:73-78. [PMID: 30569072 DOI: 10.1007/s12603-018-1112-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
OBJECTIVES To explore the associations of B-type natriuretic peptide (BNP) with physical frailty status as well as each domain of frailty in a general elderly population. DESIGN Cross-sectional analysis of prospective cohort study. SETTING All of 31 communities in Jiang'an township. PARTICIPANTS Overall 1338 participants (aged 70-89 years, mean 77.42±4.08 years) without a history of cardiovascular diseases in the third-wave of the aging arm of the Rugao Longevity and Aging Study (RuLAS). MEASUREMENTS Frailty was defined as the presence of ≥3 domains among five modified Fried's criteria (unintentional weight loss, low physical activity level, weakness (low grip strength), exhaustion, and slowness (slow gait speed)) and pre-frailty as the presence of 1-2 domains. RESULTS The prevalence of frailty and pre-frailty was 10.4% and 53.3%, respectively, in this elderly population. Elevated BNP (≥100 pg/mL) was significantly associated with pre-frailty (OR: 1.61, 95% CI: 1.13-2.29) and frailty (OR: 2.63, 95% CI: 1.61-4.32) after adjustment for covariates. In addition, elevated BNP was associated with low grip strength (OR: 2.00, 95% CI: 1.41-2.82) and low gait speed (OR: 1.62, 95% CI: 1.15-2.28) after adjustment for multiple covariates. Log BNP was inversely associated with grip strength (r= -0.265, p<0.001) and gait speed (r= -0.189, p<0.001). CONCLUSION Elevated plasma BNP was associated with increased risks of frailty, pre-frailty, and low levels of grip strength and gait speed in the elderly community people.
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Affiliation(s)
- S Yao
- Xiaofeng Wang, Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences and National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, 200433, China, ; Zhengdong Wang, Rugao People's Hospital, Rugao 226500, Jiangsu, China,
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Shi G, Lv C, Yang Z, Qin T, Sun L, Pan P, Wang D. TRIM31 promotes proliferation, invasion and migration of glioma cells through Akt signaling pathway. Neoplasma 2019; 66:727-735. [DOI: 10.4149/neo_2019_190106n21] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Accepted: 03/20/2019] [Indexed: 11/08/2022]
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Abstract
Spinal cord injury (SCI), for which there currently is no cure, is a heavy burden on
patient physiology and psychology. The microenvironment of the injured spinal cord is
complicated. According to our previous work and the advancements in SCI research,
‘microenvironment imbalance’ is the main cause of the poor regeneration and recovery of
SCI. Microenvironment imbalance is defined as an increase in inhibitory factors and
decrease in promoting factors for tissues, cells and molecules at different times and
spaces. There are imbalance of hemorrhage and ischemia, glial scar formation,
demyelination and re-myelination at the tissue’s level. The cellular level imbalance
involves an imbalance in the differentiation of endogenous stem cells and the
transformation phenotypes of microglia and macrophages. The molecular level includes an
imbalance of neurotrophic factors and their pro-peptides, cytokines, and chemokines. The
imbalanced microenvironment of the spinal cord impairs regeneration and functional
recovery. This review will aid in the understanding of the pathological processes involved
in and the development of comprehensive treatments for SCI.
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Affiliation(s)
- Baoyou Fan
- 1 National Spinal Cord Injury International Cooperation Base, Department of Orthopaedics, Tianjin Medical University General Hospital, Tianjin, China
| | - Zhijian Wei
- 1 National Spinal Cord Injury International Cooperation Base, Department of Orthopaedics, Tianjin Medical University General Hospital, Tianjin, China
| | - Xue Yao
- 1 National Spinal Cord Injury International Cooperation Base, Department of Orthopaedics, Tianjin Medical University General Hospital, Tianjin, China
| | - Guidong Shi
- 1 National Spinal Cord Injury International Cooperation Base, Department of Orthopaedics, Tianjin Medical University General Hospital, Tianjin, China
| | - Xin Cheng
- 1 National Spinal Cord Injury International Cooperation Base, Department of Orthopaedics, Tianjin Medical University General Hospital, Tianjin, China
| | - Xianhu Zhou
- 1 National Spinal Cord Injury International Cooperation Base, Department of Orthopaedics, Tianjin Medical University General Hospital, Tianjin, China
| | - Hengxing Zhou
- 1 National Spinal Cord Injury International Cooperation Base, Department of Orthopaedics, Tianjin Medical University General Hospital, Tianjin, China
| | - Guangzhi Ning
- 1 National Spinal Cord Injury International Cooperation Base, Department of Orthopaedics, Tianjin Medical University General Hospital, Tianjin, China
| | - Xiaohong Kong
- 2 Laboratory of Medical Molecular Virology, School of Medicine, Nankai University, Tianjin, China
| | - Shiqing Feng
- 1 National Spinal Cord Injury International Cooperation Base, Department of Orthopaedics, Tianjin Medical University General Hospital, Tianjin, China
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Shi G, Hu CM, Yu Q, Yang N, Xue ZS, Zhao B, Guo M, Zheng Y. Pure red cell aplasia with t-cell large granular lymphocytic leukemia. J BIOL REG HOMEOS AG 2018; 32:589-597. [PMID: 29921385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Pure red cell aplasia (PRCA) develops as a result of erythroid precursors failing to reach maturity in the bone marrow, which eventually leads to anemia. Here we present a case of a 64-year-old Asian male with a medical history of colorectal adenocarcinoma who had been treated with 6 cycles of oxaliplatin and capecitabine four years ago. The patient was diagnosed with PRCA and T-cell large granular lymphocyte leukemia.
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Affiliation(s)
- G Shi
- Department of Hematology and Oncology, The Second Hospital of Jilin University
| | - C M Hu
- Department of Hematology and Oncology, The Second Hospital of Jilin University
| | - Q Yu
- Department of Hematology and Oncology, The Second Hospital of Jilin University
| | - N Yang
- Department of Hematology and Oncology, The Second Hospital of Jilin University
| | - Z S Xue
- Department of Hematology and Oncology, The Second Hospital of Jilin University
| | - B Zhao
- Department of Hematology and Oncology, The Second Hospital of Jilin University
| | - M Guo
- Department of Hematology and Oncology, The Second Hospital of Jilin University
| | - Y Zheng
- Department of Anesthesia, China-Japan Union Hospital of Jilin University
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47
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Liang X, Xie Q, Tan D, Ning Q, Niu J, Bai X, Chen S, Cheng J, Yu Y, Wang H, Xu M, Shi G, Wan M, Chen X, Tang H, Sheng J, Dou X, Shi J, Ren H, Wang M, Zhang H, Gao Z, Chen C, Ma H, Chen Y, Fan R, Sun J, Jia J, Hou J. Interpretation of liver stiffness measurement-based approach for the monitoring of hepatitis B patients with antiviral therapy: A 2-year prospective study. J Viral Hepat 2018; 25:296-305. [PMID: 29080299 DOI: 10.1111/jvh.12814] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 09/25/2017] [Indexed: 02/05/2023]
Abstract
Liver biopsy is not routinely performed in treated chronic hepatitis B. Liver stiffness measurement has been validated for noninvasive liver fibrosis assessment in pretreatment chronic hepatitis B but has not been assessed for fibrosis monitoring during antiviral therapy. Liver stiffness was systemically monitored by Fibroscan® every 6 months in a cohort of patients with hepatitis B receiving antiviral therapy and compared with liver biopsies at baseline and week 104. A total of 534 hepatitis B e antigen-positive treatment-naive patients receiving telbivudine-based therapy with qualified liver stiffness measurement at baseline and week 104 were analyzed, 164 of which had adequate paired liver biopsies. Liver stiffness decreased rapidly (-2.2 kPa/24 weeks) in parallel with alanine aminotransferase (ALT) from 8.6 (2.6-49.5) kPa at baseline to 6.1 (2.2-37.4) kPa at week 24. Interestingly, liver stiffness decreased slowly (-0.3 kPa/24 weeks) but continually from week 24 to week 104 (6.1 vs 5.3 kPa, P < .001) while ALT levels remained stable within the normal range. More importantly, liver stiffness declined significantly irrespective of baseline ALT levels and liver necroinflammation grades. From baseline to week 104, the proportion of patients with no or mild fibrosis (Ishak, 0-2) increased from 74.4% (122/164) to 93.9% (154/164). Multivariate analysis revealed that percentage decline of 52-week liver stiffness from baseline was independently associated with 104-week liver fibrosis regression (odds ratio, 3.742; P = .016). Early decline of 52-week liver stiffness from baseline may reflect the remission of both liver inflammation and fibrosis and was predictive of 104-week fibrosis regression in treated patients with chronic hepatitis B.
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Affiliation(s)
- X Liang
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases and Hepatology Unit, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Q Xie
- Department of Infectious Diseases, Ruijin Hospital, Jiaotong University School of Medicine, Shanghai, China
| | - D Tan
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha, China
| | - Q Ning
- Department and Institute of Infectious Disease, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - J Niu
- Department of Hepatology, The First Hospital, Jilin University, Changchun, China
| | - X Bai
- Department of Infectious Diseases, Tangdu Hospital, Xi'an, China
| | - S Chen
- Ji'nan Infectious Diseases Hospital, Ji'nan, China
| | - J Cheng
- Beijing Ditan Hospital, Beijing, China
| | - Y Yu
- Department of Infectious Diseases, First Hospital of Peking University, Beijing, China
| | - H Wang
- Hepatology Unit, Peking University People's Hospital, Beijing, China
| | - M Xu
- 8th People's Hospital, Guangzhou, China
| | - G Shi
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - M Wan
- Department of Infectious Diseases, Changhai Hospital, Shanghai, China
| | - X Chen
- Beijing Youan Hospital, Beijing, China
| | - H Tang
- Department of Infectious Diseases, West China Hospital, Chengdu, China
| | - J Sheng
- Department of Infectious Diseases, Zhejiang University 1st Affiliated Hospital, Hangzhou, China
| | - X Dou
- Department of Infectious Diseases, Shengjing Hospital of China Medical University, Shenyang, China
| | - J Shi
- 6th People's Hospital, Hangzhou, China
| | - H Ren
- Department of Infectious Diseases, The second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - M Wang
- Department of Infectious Diseases, 81st PLA Hospital, Nanjing, China
| | - H Zhang
- 302nd PLA Hospital, Beijing, China
| | - Z Gao
- Department of Infectious Diseases, Sun Yat-Sen University 3rd Affiliated Hospital, Guangzhou, China
| | - C Chen
- Department of Infectious Diseases, 85th PLA Hospital, Shanghai, China
| | - H Ma
- Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Y Chen
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases and Hepatology Unit, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - R Fan
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases and Hepatology Unit, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - J Sun
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases and Hepatology Unit, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Guangdong Provincial Research Center for Liver Fibrosis, Guangzhou, China
| | - J Jia
- Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - J Hou
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases and Hepatology Unit, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Guangdong Provincial Research Center for Liver Fibrosis, Guangzhou, China
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Meng FX, Li M, Song MZ, Yuan LX, Gong YF, Qian YX, Shi G, Wang RX. Di-2-ethylhexyl phthalate (DEHP) exposure disturbs lipid metabolism in juvenile yellow catfish Tachysurus fulvidraco. J Fish Biol 2018; 92:85-93. [PMID: 29139118 DOI: 10.1111/jfb.13493] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Accepted: 09/27/2017] [Indexed: 06/07/2023]
Abstract
This study was conducted to determine the mechanism by which di-2-ethylhexyl phthalate (DEHP) exposure influences lipid metabolism of juvenile yellow catfish Tachysurus fulvidraco. Fish were exposed to three DEHP concentrations (0, 0·1 and 0·5 mg l-1 DEHP) for 8 weeks. Fatty acid synthase (FAS) activity significantly decreased with increasing DEHP concentrations, the highest value was in the Tween control group, whereas the lowest activities of carnitine palmitoyltransferase (CPT) and lipoprotein lipase (LPL) were in this group. The messenger (m)RNA levels of 6-phospho-gluconate dehydrogenase (6PGD), FAS and acetyl-CoA carboxylase a (ACCa) significantly increased with increasing DEHP concentration, the highest values were in the 0·5 mg l-1 DEHP group. The mRNA level of peroxisome proliferator-activated receptor γ (PPARγ) was lower in Tween control than in fish exposed to 0·1 and 0·5 mg l-1 DEHP. The highest mRNA level of ACCb was in the 0·1 mg l-1 DEHP group. These results indicate that DEHP exposure can disturb lipid metabolism at the enzymatic and mRNA levels in Pelteobagrus fulvidraco.
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Affiliation(s)
- F X Meng
- School of Marine Sciences, Ningbo University, Ningbo, 315211, China
| | - M Li
- School of Marine Sciences, Ningbo University, Ningbo, 315211, China
| | - M Z Song
- College of Marine Science, Zhejiang Ocean University, Zhoushan, 316000, China
| | - L X Yuan
- School of Marine Sciences, Ningbo University, Ningbo, 315211, China
| | - Y F Gong
- School of Marine Sciences, Ningbo University, Ningbo, 315211, China
| | - Y X Qian
- School of Marine Sciences, Ningbo University, Ningbo, 315211, China
| | - G Shi
- College of Marine Science, Zhejiang Ocean University, Zhoushan, 316000, China
| | - R X Wang
- School of Marine Sciences, Ningbo University, Ningbo, 315211, China
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Abstract
A novel antioxidant, butylated caffeic acid (BCA) was rationally designed by adding a tert-butyl group to caffeic acid, which was synthesized at a high yield (36.2%) from 2-methoxy-4-methylphenol by a four-step reaction including Friedel-Crafts alkylation, bromine oxidation, ether bond hydrolysis and Knoevenagel condensation. Its antioxidant capacity was much stronger than common commercial antioxidant tert-butyl hydroquinone (TBHQ) and its mother compound, caffeic acid, in both rancimat and deep frying tests. When investigated via the DPPH method, the antioxidant capacity of BCA was almost equal to TBHQ, but lower than caffeic acid. BCA could be a potentially strong antioxidant, especially for food processing at high temperatures such as deep frying and baking.
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50
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Anyu Z, Shi G, Xie A, Aksoy D, Dudley S. Regulation of transcription factor MEF2C by RNA binding protein HuR: PS021. Porto Biomed J 2017; 2:210. [PMID: 32258696 DOI: 10.1016/j.pbj.2017.07.084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Z Anyu
- Cardiovascular Research Center, The Warren Albert Medical School of Brown University, Providence Rhode Island, United States
| | - G Shi
- Cardiovascular Research Center, The Warren Albert Medical School of Brown University, Providence Rhode Island, United States
| | - A Xie
- Cardiovascular Research Center, The Warren Albert Medical School of Brown University, Providence Rhode Island, United States
| | - D Aksoy
- Marmara University School of Medicine, Istanbul, Turkey
| | - S Dudley
- Cardiovascular Research Center, The Warren Albert Medical School of Brown University, Providence Rhode Island, United States
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