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Zheng DX, Chen YX, Sun J, Hu Y, Yang P, Zhang Y, Duan XZ, Zeng ZC. Stereotactic body radiation therapy in patients with centrally located hepatocellular carcinoma: A retrospective, single-arm, multi-center study. Clin Transl Radiat Oncol 2024; 46:100767. [PMID: 38576855 PMCID: PMC10992727 DOI: 10.1016/j.ctro.2024.100767] [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: 08/13/2023] [Revised: 02/17/2024] [Accepted: 03/23/2024] [Indexed: 04/06/2024] Open
Abstract
Centrally located hepatocellular carcinoma (HCC) is difficult to be radically resected due to its special location close to major hepatic vessels. Thus, we aimed to assess whether stereotactic body radiation therapy (SBRT) can be an effective and safe approach for centrally located HCC. This retrospective study included 172 patients with centrally located HCC who were treated with SBRT. Overall survival (OS) was analyzed as the primary endpoint. Rates of progression-free survival (PFS), local control, intrahepatic relapse, extrahepatic metastasis and toxicities were analyzed as secondary endpoints. The OS rates of 1-, 3-, and 5-year were 97.7%, 86.7%, and 76.3%, respectively. The PFS/local control rates of 1-, 3-, and 5-year were 94.1%/98.2%, 76.8%/94.9%, and 59.3%/92.3%, respectively. The cumulative incidence of intrahepatic relapse/extrahepatic metastases of 1-, 3-, and 5-year were 3.7%/2.9%, 25.0%/7.4%, and 33.3%/9.8%, respectively. Both univariate and multivariate analyses revealed that patients received BED10 at 100 Gy or more had better OS. Radiation-related adverse events were mild to moderate according to Common Terminology Criteria for Adverse Events, and no toxicities over grade 3 were observed. Patients with centrally located HCC in our cohort who received SBRT had similar OS and PFS rates compared to those reported in literatures who received surgery with neoadjuvant or adjuvant intensity-modulated radiation therapy. These results indicate that SBRT is an effective and well-tolerated method for patients with centrally located HCC, suggesting that it may serve as a reasonable alternative treatment for these kind of patients.
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Affiliation(s)
- Dan-Xue Zheng
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Cancer Center, Zhongshan Hospital Fudan University, Shanghai China
| | - Yi-Xing Chen
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Cancer Center, Zhongshan Hospital Fudan University, Shanghai China
| | - Jing Sun
- Department of Radiation Oncology, The Fifth Medical Center of PLA General Hospital (302 Military Hospital), Beijing 100039, China
| | - Yong Hu
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Cancer Center, Zhongshan Hospital Fudan University, Shanghai China
| | - Ping Yang
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Cancer Center, Zhongshan Hospital Fudan University, Shanghai China
| | - Yang Zhang
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Cancer Center, Zhongshan Hospital Fudan University, Shanghai China
| | - Xue-Zhang Duan
- Department of Radiation Oncology, The Fifth Medical Center of PLA General Hospital (302 Military Hospital), Beijing 100039, China
| | - Zhao-Chong Zeng
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Cancer Center, Zhongshan Hospital Fudan University, Shanghai China
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Treichel AM, Zheng DX, Ranasinghe GC, Zeft AS, Bergfeld WF, Bayart CB. Eosinophilic fasciitis in a young male auto mechanic exposed to organic solvents. Reumatismo 2023; 75. [PMID: 37721352 DOI: 10.4081/reumatismo.2023.1539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 07/08/2023] [Indexed: 09/19/2023] Open
Abstract
We report a case of eosinophilic fasciitis in a teenage auto mechanic who was most likely affected by occupational exposure to organic solvents, including the aromatic hydrocarbons benzene, trimethylbenzene, naphthalene, toluene, and xylene. The patient presented with an 8-month history of painful induration of his extremities and an abnormal gait. A deep excisional biopsy of the fascia was obtained, demonstrating subcutaneous fibrosis with perivascular and interstitial inflammation, with lymphocytes and plasma cells spilling into the sclerosed fascia, and focal fibrinoid necrosis. Treatment was begun with intravenous pulse doses of methylprednisolone, prednisone (20 mg daily), and subcutaneous methotrexate (25 mg weekly), and the patient's painful induration had resolved and gait had normalized at the 6-month follow-up. Our case suggests that exposure to organic solvents could be implicated in the pathogenesis of eosinophilic fasciitis and highlights the importance of a thorough occupational history to prevent repeat exposures to potentially causative agents.
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Affiliation(s)
- A M Treichel
- Department of Dermatology, Cleveland Medical Center University Hospital, Case Western Reserve University, Cleveland, Ohio.
| | - D X Zheng
- Department of Dermatology, Cleveland Medical Center University Hospital, Case Western Reserve University, Cleveland, Ohio.
| | | | - A S Zeft
- Division of Pediatric Rheumatology, Department of Pediatrics, Cleveland Clinic, Ohio.
| | - W F Bergfeld
- Department of Dermatology, Cleveland Clinic, Ohio.
| | - C B Bayart
- Department of Pediatric Dermatology, Cincinnati Children's Hospital Medical Center, Ohio.
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3
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Du SS, Chen GW, Yang P, Chen YX, Hu Y, Zhao QQ, Zhang Y, Liu R, Zheng DX, Zhou J, Fan J, Zeng ZC. Radiation Therapy Promotes Hepatocellular Carcinoma Immune Cloaking via PD-L1 Upregulation Induced by cGAS-STING Activation. Int J Radiat Oncol Biol Phys 2022; 112:1243-1255. [PMID: 34986380 DOI: 10.1016/j.ijrobp.2021.12.162] [Citation(s) in RCA: 60] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 12/10/2021] [Accepted: 12/24/2021] [Indexed: 12/14/2022]
Abstract
PURPOSE Radiation therapy (RT) is one of the main treatments for patients with unresectable hepatocellular carcinoma (HCC). Emerging evidence indicates that the cyclic guanosine monophosphate-adenosine monophosphate synthase (cGAS) stimulator of interferon gene (STING) pathway is crucial in RT-induced antitumor immune responses. Here, we discovered that activation of the cancer cell-intrinsic cGAS-STING pathway mediated immune cloaking after RT-induced DNA damage. METHODS AND MATERIALS Key regulatory proteins in the cGAS-STING signaling pathway in human and murine HCC cell lines were knocked out or down using CRISPR and CRISPR-associated protein 9 or small interfering RNA. The underlying mechanism of immune cloaking and clinical significance of cGAS-STING-induced programmed cell death ligand 1 (PD-L1) expression were studied with both ex vivo analyses and in vitro experiments. RESULTS RT upregulated PD-L1 in patients with HCC, which correlated with poor survival. RT activated cGAS-STING, increasing immune-checkpoint PD-L1 expression in human and mouse liver cancer cells. Ionizing radiation activated the STING-TANK-binding kinase 1 (TBK1)-interferon regulatory factor 3 (IRF3) innate immune pathway, leading to PD-L1 upregulation in HCC cells and inhibiting cytotoxic T-lymphocyte activity and protecting tumor cells from immune-mediated eradication. Knockdown of cGAS, STING, TBK1, and IRF3 reversed the antitumor effect of cytotoxic T-lymphocyte-mediated cytotoxicity after ionizing radiation in vitro or in vivo. RT potentiated the antitumor effect of programmed cell death protein 1 and PD-L1 axis blockade and augmented cytotoxic T-cell (CTL) infiltration in HCC tumors in immunocompetent mice. CD8 depletion compromised the synergetic antitumor effect of combined RT and anti-PD-L1 blockade, demonstrating that CD8+ CTLs are required for antitumor immunity induced by combination therapy. CONCLUSIONS Our results identified an immune-cloaking mechanism for RT-activated, innate immune cGAS-STING and suggested that RT enhances HCC immunotherapy.
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Affiliation(s)
- Shi-Suo Du
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai, China.
| | - Gen-Wen Chen
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ping Yang
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yi-Xing Chen
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yong Hu
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Qian-Qian Zhao
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yang Zhang
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Rong Liu
- Interventional Department, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Dan-Xue Zheng
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jian Zhou
- and Department of Liver Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jia Fan
- and Department of Liver Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zhao-Chong Zeng
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai, China.
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Zheng DX, Mulligan KM, Gallo Marin B, Cullison CR, Cwalina TB, Beveridge MG, Linos E, Scott JF. Online crowdfunding for medical expenses related to hidradenitis suppurativa. Clin Exp Dermatol 2021; 47:465-467. [PMID: 34614227 DOI: 10.1111/ced.14955] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 10/04/2021] [Indexed: 11/26/2022]
Affiliation(s)
- D X Zheng
- Department of Dermatology, University Hospitals Cleveland Medical Center, Case Western Reserve University, Cleveland, OH, USA
| | - K M Mulligan
- Department of Dermatology, University Hospitals Cleveland Medical Center, Case Western Reserve University, Cleveland, OH, USA
| | - B Gallo Marin
- Department of Dermatology, Warren Alpert Medical School, Brown University, Providence, RI, USA
| | - C R Cullison
- Department of Dermatology, University Hospitals Cleveland Medical Center, Case Western Reserve University, Cleveland, OH, USA
| | - T B Cwalina
- Department of Dermatology, University Hospitals Cleveland Medical Center, Case Western Reserve University, Cleveland, OH, USA
| | - M G Beveridge
- Department of Dermatology, University Hospitals Cleveland Medical Center, Case Western Reserve University, Cleveland, OH, USA
| | - E Linos
- Department of Dermatology and Epidemiology, Stanford University, Stanford, CA, USA
| | - J F Scott
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Mulligan KM, Zheng DX, Narang J, Eversman A, Kalra MK, Morgan F, Obi EE, Osei-Koomson W, Russell ER, Wei AH, Sharma TR. The effect of COVID-19-related changes on geographical outcomes in the 2021 dermatology residency match. Clin Exp Dermatol 2021; 47:445-447. [PMID: 34560815 PMCID: PMC8653266 DOI: 10.1111/ced.14946] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 09/20/2021] [Accepted: 09/23/2021] [Indexed: 11/30/2022]
Affiliation(s)
- K M Mulligan
- Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - D X Zheng
- Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - J Narang
- Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH, USA
| | - A Eversman
- Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - M K Kalra
- Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - F Morgan
- Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH, USA
| | - E E Obi
- Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - W Osei-Koomson
- Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH, USA
| | - E R Russell
- Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - A H Wei
- Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH, USA
| | - T R Sharma
- Case Western Reserve University School of Medicine, Cleveland, OH, USA.,Department of Dermatology, University Hospitals Cleveland Medical Center, Case Western Reserve University, Cleveland, OH, USA
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Zheng DX, Ning AY, Levoska MA, Xiang L, Wong C, Scott JF. TikTok™, teens and isotretinoin: recommendations for identifying trending acne-related content on the world's most popular social media platform. Clin Exp Dermatol 2021; 46:1129-1130. [PMID: 33811769 DOI: 10.1111/ced.14669] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 03/30/2021] [Indexed: 11/27/2022]
Affiliation(s)
- D X Zheng
- Department of Dermatology, University Hospitals Cleveland Medical Center, Case Western Reserve University, Cleveland, OH, USA
| | - A Y Ning
- Department of Dermatology, University Hospitals Cleveland Medical Center, Case Western Reserve University, Cleveland, OH, USA
| | - M A Levoska
- Department of Dermatology, University Hospitals Cleveland Medical Center, Case Western Reserve University, Cleveland, OH, USA
| | - L Xiang
- Department of Dermatology, University Hospitals Cleveland Medical Center, Case Western Reserve University, Cleveland, OH, USA
| | - C Wong
- Department of Dermatology, University Hospitals Cleveland Medical Center, Case Western Reserve University, Cleveland, OH, USA
| | - J F Scott
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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7
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Liu HL, Liu XG, Tian YM, Ni L, Zheng DX. [Clinical study on the accuracy of occlusal contacts on digital model]. Zhonghua Kou Qiang Yi Xue Za Zhi 2020; 55:737-742. [PMID: 33045784 DOI: 10.3760/cma.j.cn112144-20200506-00244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the accuracy of occlusal contacts on digital model made by intraoral scanner. Methods: Twenty healthy subjects [6 males, 14 females, (24.4±1.4) years old] with intact dentition were randomly recruited from postgraduate students in Capital Medical University School of Stomatology who volunteered to participate in this study. For each participant, the 2nd and 3rd quadrant of natural dentition was scanned. A diagnostic test design was performed. The occlusal contacts of the maximal intercuspal position (MIP) were extracted with the transillumination of silicone interocclusal records, and the extraction threshold was set as ≤50 μm. Intraoral scanning system was used to scan in MIP and generate occlusal contacts on digital model. Five groups were designed as test groups according to included tooth position: group 1 (buccal scanning ranged from tooth 21 to 23), group 2 (buccal scanning ranged from tooth 23 to 26), group 3 (buccal scanning ranged from tooth 24 to 26), group 4 (buccal scanning ranged from tooth 25 to 26), group 5 (buccal scanning ranged from tooth 21 to 26). Five groups occlusal contacts on digital model were generated respectively. According to the relevant literature, the upper occlusal surface was divided into 28 partitions, and the accuracy of occlusal contacts on digital model was calculated with the transillumination of silicone interocclusal records as the reference standard. Subgroup analysis was performed according to anterior teeth area, premolars area and molars area. Results: The accuracy of occlusal contacts on digital models of the half dentition in five buccal scanning positions were: group 1 (86.8%), group 2 (92.0%), group 3 (90.7%), group 4 (91.1%), group 5 (90.4%), and the accuracy of occlusal contacts in group 1 was significantly lower than those in the other four groups (P<0.05). The accuracy of anterior teeth area were 85.6%-93.9%; the accuracy of premolar area were 92.5%-94.4%; the accuracy of molar area were 77.3%-93.6%, group 1 was significantly lower than those in the group 4 in molars area (P<0.05), the accuracy of anterior area was statistically less than premolars area and molars area in group 1 (P<0.05). There was no statistical difference in pairwise comparison between the three sections (P>0.05). Conclusions: The digital models scanned intraoral methods provide accurate, quantitative measures of occlusal contacts when transillumination contacts are the reference standard.
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Affiliation(s)
- H L Liu
- Department of Prosthodontics, Capital Medical University School of Stomatology, Beijing 100050, China
| | - X G Liu
- Department of Prosthodontics, Capital Medical University School of Stomatology, Beijing 100050, China
| | - Y M Tian
- Department of Prosthodontics, Capital Medical University School of Stomatology, Beijing 100050, China
| | - L Ni
- Medical Research & Biometrics Center, National Center for Cardiovascular Diseases, Beijing 100037, China
| | - D X Zheng
- Department of Prosthodontics, Capital Medical University School of Stomatology, Beijing 100050, China
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8
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Xie H, Chu L, Wu LQ, Fan XY, Wang P, Ma SY, Zheng DX, Li KL, Chen XZ, Yang XD. [Polarization of bone marrow-derived macrophages induced by recombinant Trichinella spiralis cysteine protease inhibitors in vitro]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2020; 32:181-186. [PMID: 32458608 DOI: 10.16250/j.32.1374.2019245] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To investigate the regulatory role of recombinant Trichinella spiralis cysteine protease inhibitors (rTs-Cys) in induction of polarization of bone marrow-derived macrophages (BMDMs) in vitro. METHODS BMDMs were captured and cultured in conditioned medium for 7 days. Then, mature BMDMs were harvested and assigned into four groups. Cells in Group A (negative control) were given 10 ng/mL IFN-γ combined with 100 ng/mL LPS, cells in Group B (positive control) were treated with IL-4 and IL-10 (at 10 ng/mL both), and cells in Group C (recombinant protein alone) were stimulated with 1 μg/mL rTs-Cys, while cells in Group D (protein co-culture) were simultaneously treated with 1 μg/mL rTs-Cys, 10 ng/mL IFN-γ and 100 ng/mL LPS. Cells and culture supernatant were collected 24 hour post-treatment, and the proportions of F4/80+, CD11b+, CD206+ and CD11c+ cells were detected by flow cytometry. The levels of interleukin IL-6 (IL-6), tumor necrosis factor-α (TNF-α), IL-10 and transforming growth factor-β (TGF-β) in the cell culture supernatant were measured by ELISA and the CD86+ and CD206+ phenotypes were identified by immunofluorescent staining. RESULTS Flow cytometry detected no significant difference in the proportion of F4/80+ CD11b+ CD11c+ cells among the four groups (F = 46.184, P < 0.001), and a lower proportion of F4/80+ CD11b+ CD11c+ cells was seen in groups C and D than in group A (all P values < 0.001). There was a significant difference in the proportion of F4/80+ CD11b+ CD206+ cells among the four groups (F = 11.032, P < 0.001), and a greater proportion of F4/80+ CD11b+ CD206+ cells was seen in groups C and D than in group A (all P values < 0.01). Immunofluorescent staining showed higher CD206+ expression and lower CD86+ expression in groups C and D than in Group A. There were significant differences in the IL-6 and (F = 3.950, P < 0.001) and TNF-α (F = 205.827, P < 0.001) levels in the cell culture supernatants among the four groups, and significantly lower IL-6 and TNF-α levels were measured in groups C and D than in Group A (both P < 0.05). There were significant differences in the IL-10 and (F = 8.274, P < 0.001) and TGF-β (F = 13.559, P < 0.01) levels in the cell culture supernatants among the four groups, and greater IL-10 and TGF-β levels were measured in Group C than in Group A (both P values < 0.01). In addition, the TGF-β level was significantly higher in Group D than in Group A (P < 0.05); however, there was no significant difference in the IL-10 level between groups D and A (P > 0.05). CONCLUSIONS rTs-Cys may induce the polarization of BMDMs to antiinflammatory M2 macrophages in vitro and inhibit the activation of M1 macrophages.
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Affiliation(s)
- H Xie
- Basic Medical College, Bengbu Medical College, Bengbu 233000, China.,Anhui Key Laboratory of Infection and Immunity, China
| | - L Chu
- The Second Affiliated Hospital of Bengbu Medical College, China
| | - L Q Wu
- Anhui Key Laboratory of Infection and Immunity, China.,The First Affiliated Hospital of Bengbu Medical College, China
| | - X Y Fan
- Anhui Key Laboratory of Infection and Immunity, China
| | - P Wang
- Anhui Key Laboratory of Infection and Immunity, China
| | - S Y Ma
- Anhui Key Laboratory of Infection and Immunity, China
| | - D X Zheng
- Anhui Key Laboratory of Infection and Immunity, China
| | - K L Li
- Anhui Key Laboratory of Infection and Immunity, China
| | - X Z Chen
- Basic Medical College, Bengbu Medical College, Bengbu 233000, China.,Anhui Key Laboratory of Infection and Immunity, China
| | - X D Yang
- Basic Medical College, Bengbu Medical College, Bengbu 233000, China.,Anhui Key Laboratory of Infection and Immunity, China
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Chen J, Zheng DX, Yu XJ, Sun HW, Xu YT, Zhang YJ, Xu J. Macrophages induce CD47 upregulation via IL-6 and correlate with poor survival in hepatocellular carcinoma patients. Oncoimmunology 2019; 8:e1652540. [PMID: 31646099 DOI: 10.1080/2162402x.2019.1652540] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 07/22/2019] [Accepted: 07/31/2019] [Indexed: 02/07/2023] Open
Abstract
CD47 is known to be involved in phagocyte-mediated tumor clearance; however, its expression, clinical significance, and regulatory mechanism in hepatocellular carcinoma (HCC) remain poorly understood. In the present study, we found that upregulation of CD47 expression on tumor cells was correlated with poor overall survival and recurrence-free survival in patients with HCC. Abundance of macrophages (Mϕs) infiltration was found in CD47+ tumor tissues. Mechanistic studies revealed that IL-6 derived from tumor-infiltrating Mϕs could upregulate CD47 expression on hepatoma cells through activation of the STAT3 pathway. Neutralization of CD47 or disruption of the IL-6-STAT3 axis reduced the ability of tumor cells to escape phagocytosis. Moreover, CD47 blockade could enhance Mϕ-mediated phagocytosis in the presence of chemotherapeutic drugs, and HCC patients with lower CD47 expression were more likely to benefit from adjuvant transcatheter arterial chemoembolization (TACE) treatment. These findings revealed that Mϕ-derived IL-6 was responsible for CD47 expression on hepatoma cells, which might be served as a potential prognostic marker and a predictor for patients who might benefit from adjuvant TACE treatment.
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Affiliation(s)
- Jing Chen
- Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, State key Laboratory of Oncology in South China, Guangzhou, P. R. China
| | - Dan-Xue Zheng
- Shanghai Medical College, Fudan University, Shanghai, P. R. China
| | - Xing-Juan Yu
- Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, State key Laboratory of Oncology in South China, Guangzhou, P. R. China
| | - Hong-Wei Sun
- Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, State key Laboratory of Oncology in South China, Guangzhou, P. R. China
| | - Yi-Tuo Xu
- Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, State key Laboratory of Oncology in South China, Guangzhou, P. R. China
| | - Yao-Jun Zhang
- Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, State key Laboratory of Oncology in South China, Guangzhou, P. R. China.,Department of Hepatobiliary Surgery, Sun Yat-Sen University Cancer Center, Guangzhou, P. R. China
| | - Jing Xu
- Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, State key Laboratory of Oncology in South China, Guangzhou, P. R. China
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10
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Zheng DX, Wan F. [Probe of the compiling stylistic rules and layout of Youyou Xin Shu]. Zhonghua Yi Shi Za Zhi 2018; 48:300-303. [PMID: 30646669 DOI: 10.3760/cma.j.issn.0255-7053.2018.05.007] [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] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Youyou Xin Shu(The New Book on Juveniles)《》is a great book of pediatrics in the Southern Song Dynasty. The book quotes a lot of literature.This paper makes an overall arrangement of the citation, sums up the features of the books cited, corrects some wrong compilations from different texts in various existing versions. Therefore, we can infer the publishing ages and time of some literature related.
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Affiliation(s)
- D X Zheng
- China Institute for History of Medicine and Medical Literature, China Academy of Chinese Medical Sciences, 100700, China
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11
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Tian YM, Zhuge RS, Zhang ZT, Zheng DX, Ding N, Li YM. Effects of subpressure on the sealing ability of dental sealant in vitro. J Mech Behav Biomed Mater 2018; 85:117-123. [PMID: 29885602 DOI: 10.1016/j.jmbbm.2018.05.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 05/09/2018] [Accepted: 05/14/2018] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Pits and fissures sealing with flowable materials is a popular method for preventing caries in preventive dentistry while there is still microleakage existed. This in vitro study aimed to explore the effects of subpressure technique on the sealing ability of pit and fissure sealant. MATERIALS AND METHODS One hundred and forty-one extracted human premolars were collected in this study and treated with different pressure (atmosphere pressure as group C, -0.04 MPa as group S4 and -0.08 MPa as group S8). Thermocycling (×5000) was also performed. Penetration percentage, microleakage, cross-sectional microhardness (Knoop, KMH) and mineral loss were evaluated. Kappa tests, Friedman nonparametric and two-way ANOVA were used for data analysis. RESULTS Penetration percentages of group S4 and S8 were significant higher compared to that of group C. Microleakage of groups was similar before thermocycling, while subpressure groups showed lower scale of microleakage after thermocycling. Data of KMH and mineral loss showed significant differences between subpressure and thermocycling groups. SIGNIFICANCE Subpressure technique could increase the penetration of pit and fissure sealant, decrease microleakage and increase resistance of demineralization after thermocycling. This novel technique may have great potential for preventing from secondary caries.
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Affiliation(s)
- Y M Tian
- School of Stomatology, Capital Medical University, Beijing 100050, China
| | - R S Zhuge
- School of Stomatology, Capital Medical University, Beijing 100050, China
| | - Z T Zhang
- School of Stomatology, Capital Medical University, Beijing 100050, China.
| | - D X Zheng
- School of Stomatology, Capital Medical University, Beijing 100050, China.
| | - N Ding
- School of Stomatology, Capital Medical University, Beijing 100050, China
| | - Y M Li
- School of Stomatology, Capital Medical University, Beijing 100050, China
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Zheng DX. [The quality control based on the predictable performance]. Zhonghua Kou Qiang Yi Xue Za Zhi 2016; 51:513-516. [PMID: 27596338 DOI: 10.3760/cma.j.issn.1002-0098.2016.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The clinical performance can only be evaluated when it comes to the last step in the conventional way of prosthesis. However, it often causes the failure because of the unconformity between the expectation and final performance. Resulting from this kind of situation, quality control based on the predictable results has been suggested. It is a new idea based on the way of reverse thinking, and focuses on the need of patient and puts the final performance of the prosthesis to the first place. With the prosthodontically driven prodedure, dentists can complete the unification with the expectation and the final performance.
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Affiliation(s)
- D X Zheng
- Department of Prosthodontics, Capital Medical University School of Stomatology, Beijing 100050, China
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Liu JX, Zheng DX, Zhang ZS. [The CD2, CD4 and CD8 mRNA expression of T lymphocytes in patients with acromegaly and hyperprolactinemia]. Zhonghua Yi Xue Za Zhi 1994; 74:523-6, 581. [PMID: 7842346] [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: 01/27/2023]
Abstract
The CD2, CD4 and CD8 mRNA expression of human peripheral blood lymphocytes (HPBL) from 49 female patients with acromegaly and hyperprolactinemia and 15 healthy women were studied by dot blotting assay using corresponding CD2, CD4 and CD8 antisense RNA probes. It was found that CD2 mRNA expression increased in women with growth hormone over-expression and the ratio of CD4 and CD8 mRNA declined significantly in the women with prolactin over-expression. These suggested that the mRNA expression of these cluster differentiation antigens in peripheral T lymphocytes was affected by the pituitary hormones. The significance of these findings relevant to the study of the neuroendocrine and immune network was discussed.
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Affiliation(s)
- J X Liu
- Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Beijing
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Zheng DX, Dickens L, Liu TY, Nakhasi HL. Nucleotide sequence of the 24S subgenomic messenger RNA of a vaccine strain (HPV77) of rubella virus: comparison with a wild-type strain (M33). Gene X 1989; 82:343-9. [PMID: 2583526 DOI: 10.1016/0378-1119(89)90061-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
A full-length cDNA clone for the 24S subgenomic mRNA of the vaccine strain (HPV77) of rubella virus has been isolated from a cDNA library made from the RNAs of infected cells. Starting from the first Met start codon, the 24S mRNA codes for a precursor protein of 1063 amino acids (aa). This precursor encodes a capsid protein of 300 aa, and two envelope proteins, E1 (481 aa) and E2 (282 aa). Both the E1 and E2 proteins are preceded by a stretch of 21 hydrophobic aa, characteristic of a signal peptide, and each has three putative glycosylation sites in the polypeptide chains. Comparison between the structural proteins of the vaccine and the wild-type (wt; M33) strains of rubella virus, revealed that the E2 protein of the vaccine strain differs, in its apparent Mr, by approx. 3 kDa, from the wt strain. The difference could be due to decreased glycosylation of the vaccine strain E2 protein, as revealed by [3H]mannose incorporation studies. Five single-aa changes in the structural proteins occurred during the attenuation process, one each in the capsid and the E1 protein and three in the E2 protein. The change of Thr-412----Ile in the E2 protein results in the loss of a putative glycosylation site at Asn-410, which offers a plausible explanation for decreased glycosylation of the E2 protein from the vaccine strain of rubella virus.
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Affiliation(s)
- D X Zheng
- Division of Biochemistry and Biophysics, Food and Drug Administration, Bethesda, MD 20892
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Nakhasi HL, Thomas D, Zheng DX, Liu TY. Nucleotide sequence of capsid, E2 and E1 protein genes of Rubella virus vaccine strain RA27/3. Nucleic Acids Res 1989; 17:4393-4. [PMID: 2740235 PMCID: PMC317967 DOI: 10.1093/nar/17.11.4393] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
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Abstract
The effect of alpha and gamma interferon (IFN alpha, IFN gamma) and actinomycin D on the expression of wild type rubella virus in African green monkey kidney cells (Vero 76) was studied. Viral protein synthesis in the infected cells was significantly reduced upon treatment of the cells with IFN alpha or IFN gamma, which is accompanied by the reduction in the level of both the (+) stranded and the (-) stranded viral RNAs. The residual rubella viral RNA from interferon-treated cells, however, was structurally intact as judged by Northern blot analysis and in vitro translation. These results suggest that the effect of IFN alpha and IFN gamma on rubella viral protein synthesis is both at the transcriptional and the translational level. The effect of actinomycin D on rubella virus replication was found to be time-dependent. It is much more pronounced during the eclipse phase of the viral growth (first 4 h) than after 8 h at which time actinomycin D had lesser effect. A similar effect on rubella virus replication was observed when alpha-amanitin was used instead of actinomycin D. These results were taken to indicate that during the viral infection, host cell DNA directs the synthesis of a cellular factor(s) which is essential for the viral replication. When the synthesis of this cellular factor(s) is terminated at an early stage of viral infection by actinomycin D or by alpha-amanitin, viral replication is impaired.
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Affiliation(s)
- H L Nakhasi
- Division of Biochemistry and Biophysics, Food and Drug Administration, Bethesda, MD
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Liu SL, Yang HJ, Zheng DX. Mitogenic effect of polyclonal anti-porcine lymphocyte E-receptor antiserum IgG. Immunol Invest 1987; 16:363-70. [PMID: 2891615 DOI: 10.3109/08820138709087091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
In the present paper we report the mitogenic effect of the sheep anti-porcine lymphocyte E-receptor antiserum IgG(APERIgG) on porcine peripheral T-lymphocytes in vitro. The effect was apparently dose-dependent and not seen in the B-lymphocyte cultures. Kinetic study showed that the maximal 3H-thymidine incorporation, similar to that induced by Con A, occurred on the third day of incubation. Neither F(ab')2 nor Fab fragment of APERIgG was able to induce cell proliferation, indicating that the integrity of IgG molecule was essential for cell response. It was very interesting to note that though there is cross antigenicity between porcine and human E-receptors, no similar effect could be produced by APERIgG in human peripheral lymphocyte cultures under the same experimental conditions, suggesting the existence of minor difference in structure between the porcine and human E-receptors.
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Affiliation(s)
- S L Liu
- Department of Biochemistry and Molecular Biology, Peking Union Medical College, China
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Yang HZ, Liu SL, Gong YH, Zheng DX. [Observations of the regeneration and expression of E-receptor in porcine lymphocytes by immunoelectron microscopy]. Shi Yan Sheng Wu Xue Bao 1987; 20:179-85. [PMID: 2958973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Xu CS, Tao K, Zheng DX, Zheng CX, Liu SL. Isolation and purification of a small peptide with activity of increasing E-receptor expression from calf thymus. Immunol Invest 1985; 14:355-65. [PMID: 3877684 DOI: 10.3109/08820138509022671] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A small peptide of molecular mass lower than 1,000 daltons was isolated and purified from a crude extract of calf thymus. It has been demonstrated to have the activity of increasing E-rosette formation and E-receptor expression of human and porcine T-lymphocytes with three different in vitro assays. Amino acid composition analysis showed that this peptide consists of glutamic acid, aspartic acid and glycine residues at a molecular ratio of 3:3:2. A hypothesis of a multi-factoral and multi-staged mechanism of regulation of thymocyte differentiation and maturation in the thymus is proposed.
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Cui LX, Zheng DX, Liu SL. [Studies on E-receptors II. Purification of E-receptors with affinity chromatography]. Zhongguo Yi Xue Ke Xue Yuan Xue Bao 1984; 6:318-20. [PMID: 6241079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Zheng DX, Liu SL. Isolation, purification and biochemical characterization of E-receptors on surfaces of porcine peripheral lymphocytes. Sci Sin B 1983; 26:151-61. [PMID: 6857231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A report on the study of isolation, purification and biochemical characterization of two glycoproteins, designated as Gp1 and Gp2, with E-receptor activity from the surfaces of porcine peripheral lymphocytes is presented. The molecular weights of Gp1 and Gp2 have been found to be 58,000 and 29,000 Daltons, and the isoelectric points 6.8 and 5.5 respectively. N-terminal amino acid residues of Gp1 are glycine and alanine, and that of Gp2 is glycine. Monospecific rabbit anti-Gp1 antiserum shown to inhibit E-rosette formation of porcine lymphocytes has been obtained. The present paper gives for the first time the evidence that the E-receptor of porcine lymphocytes, Gp1 appears to have cross antigenicity with that of human lymphocytes. Further studies of Gp2 in detail and its relationship to Gp1 will be published elsewhere.
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Liu SL, Cui LX, Xu CS, Tao K, Zheng DX, Yang GZ, Zhang JC, Zhang SH, Zheng CX. [Studies on thymic peptide factors. I. Isolation, purification and in vitro E-rosette augmentation activity of calf thymic peptide factors]. Zhongguo Yi Xue Ke Xue Yuan Xue Bao 1982; 4:202-5. [PMID: 6217906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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