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Xu MM, Li SS, Yang YR, Wu Y, Yang X, Duan ZP, Chen Y. [Epidemiological characteristics of inpatients with liver failure at the Beijing You'an Hospital from 2012 to 2021]. Zhonghua Gan Zang Bing Za Zhi 2024; 32:49-57. [PMID: 38320791 DOI: 10.3760/cma.j.cn501113-20220824-00433] [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: 02/15/2024]
Abstract
Objective: To elucidate the epidemiological characteristics and changing trends of liver failure in order to provide evidence-based strategies for prevention and treatment. Methods: The epidemiological information of inpatients with liver failure admitted and treated at Beijing You'an Hospital from 2012 to 2021 was retrospectively collected. The trend test was used to analyze age, gender, as well as the year-by-year changes in the underlying acute and chronic etiology of acute liver failure (ALF), sub-acute liver failure (SALF), acute-on-chronic liver failure (ACLF), and chronic liver failure (CLF). Results: During the study period, information on a total of 8512 inpatients, aged 51.3±13.5 years and mainly male (71.9%) with liver failure, was collected. The highest to lowest proportions of liver failure types were ACLF 4 023 (47.3%), CLF 3 571(42.0%), SALF 670 (7.9%), and ALF 248 (2.9%). The top five causes of liver failure in the overall population, accounting for 87.6% of the total, were hepatitis B 3 199 (37.58%), alcoholic liver disease 2 237 (26.28%), cryptogenic liver disease 906(10.61%), hepatitis B + alcoholic liver disease 603 (7.08%), drugs 488 (5.73%), The top three etiologies of patients with different types of liver failure were acute etiologies for acute liver failure (ALF), followed by drugs 107 (43.1%), hepatitis B 47(19.0%), and unknown etiology 36 (14.5%); sub-acute liver failure (SALF), followed by drugs 381(56.9%), unknown etiology 106 (15.8%), and sepsis 56 (8.4%); and acute-on-chronic liver failure (ACLF), followed by drugs 2 092(52.0%), alcoholic liver disease 813(20.2%), and cryptogenic liver disease 398(9.9%); and chronic etiologies for chronic liver failure (CLF), followed by alcoholic liver disease 1 410(39.5%), hepatitis B 1 028(28.8%), and cryptogenic liver disease 364(10.2%). Longitudinal analysis showed that the average age of patients with liver failure increased year by year, but the sex ratio trend did not change significantly, with male patients predominating throughout. The proportion of drug-induced liver failure in patients with ALF and SALF increased year by year, and the difference in the trend test was statistically significant (P < 0.05). The proportion of patients with chronic etiologies of ACLF and CLF decreased year by year among hepatitis B, while the proportion of alcoholic liver disease, autoimmune liver disease, and cryptogenic liver disease increased year by year (the difference was statistically significant, P < 0.05). Conclusion: The etiological spectrum of liver failure is changing in our country. Although hepatitis B is still the main cause of liver failure, its proportion shows a decreasing trend year by year, with the exception of ACLF, which is no longer the primary etiology of other types of liver failure, while drug-induced liver disease, alcoholic liver disease, autoimmune liver disease, and cryptogenic liver disease are increasing year by year and will become the focus of liver disease prevention and treatment in the future.
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Affiliation(s)
- M M Xu
- Fourth Department of Liver Disease, Beijing Youan Hospital, Capital Medical University, Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069, China
| | - S S Li
- Fourth Department of Liver Disease, Beijing Youan Hospital, Capital Medical University, Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069, China
| | - Y R Yang
- Fourth Department of Liver Disease, Beijing Youan Hospital, Capital Medical University, Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069, China
| | - Y Wu
- Fourth Department of Liver Disease, Beijing Youan Hospital, Capital Medical University, Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069, China
| | - X Yang
- Fourth Department of Liver Disease, Beijing Youan Hospital, Capital Medical University, Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069, China
| | - Z P Duan
- Fourth Department of Liver Disease, Beijing Youan Hospital, Capital Medical University, Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069, China
| | - Y Chen
- Fourth Department of Liver Disease, Beijing Youan Hospital, Capital Medical University, Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069, China
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Chen H, Xu MM, Sun YT, Yu S, Yang DQ. [Inhibitory effect of Streptococcus mutans antisense vicK RNA regulating the cariogenicity of oral streptococci multi-species biofilm]. Zhonghua Kou Qiang Yi Xue Za Zhi 2024; 59:64-70. [PMID: 38172063 DOI: 10.3760/cma.j.cn112144-20231031-00229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Objective: To investigate the regulative effects of Streptococcus mutans (Sm) antisense vicK RNA (ASvicK) on the multi-species biofilm formed by three common oral streptococci (Sm, Streptococcus sanguinis, and Streptococcus gordonii) (Sm+Ss+Sg). Methods: ASvicK over-expression strain was constructed by using a recombinant plasmid, and three-species biofilm UA159+Ss+Sg and ASvicK+Ss+Sg were cultured. The phenotypes of biofilms were detected by scanning electron microscopy (SEM). Crystal violet (CV) assay was used to detect biofilm biomass. Lactate kit and anthrone-sulfuric acid colorimetric assay were used to determine the abilities of lactic acid and exopolysaccharides production, respectively. The proportions of three-species and expression levels of the cariogenic-related genes in biofilms were detected by TaqMan fluorescence quantitative PCR and real-time fluorescence quantitative PCR. A biofilm demineralization model of human enamel slabs was further constructed, and the hardness of enamel surface was detected. Results: Compared to UA159+Ss+Sg, over-expression of ASvicK could inhibit biofilm formation and lactic acid production in ASvicK+Ss+Sg biofilm significantly decreased by 78.93% (P<0.001) and 62.23% (P<0.001), respectively. With ASvicK over-expression, the amounts of water-insoluble and-soluble glucoses in ASvicK+Ss+Sg biofilm were reduced respectively by 39.13% (P<0.001) and 68.00% (P<0.001). Compared to the UA159+Ss+Sg Group, the proportion of Sm, the cariogenic bacteria, showed 33.00% reduction (P<0.01) in Sm+Ss+Sg biofilm, and the gene expressions of cariogenic-relative genes vicK/X, gtfB/C/D, and ftf significantly decreased (P<0.05). The micro-hardness value of enamel slabs after demineralization by ASvicK+Ss+Sg biofilm was significantly increased to 183.84% (P<0.001). Conclusions: ASvicK over-expression could reduce the Sm proportion and weaken the cariogenicity of oral Streptococcus biofilm, thereby possibly slowing down the progression of caries.
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Affiliation(s)
- H Chen
- Department of Endodontics, Stomatological Hospital of Chongqing Medical University & Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences & Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - M M Xu
- Department of Endodontics, Stomatological Hospital of Chongqing Medical University & Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences & Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - Y T Sun
- Department of Endodontics, Stomatological Hospital of Chongqing Medical University & Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences & Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - S Yu
- Department of Endodontics, Stomatological Hospital of Chongqing Medical University & Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences & Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - D Q Yang
- Department of Endodontics, Stomatological Hospital of Chongqing Medical University & Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences & Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
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Xu QW, Du YY, Lyu KK, Xu MM, Gu CY, Kang HZ, Feng SL, Liu YJ, Wu DP, Han Y. [Follow-up analysis of sex hormone levels and prognosis in women after hematopoietic stem cell transplantation]. Zhonghua Nei Ke Za Zhi 2023; 62:1303-1310. [PMID: 37935496 DOI: 10.3760/cma.j.cn112138-20230526-00272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
Objective: To investigate the levels of sex hormone and fertility in female patients after hematopoietic stem cell transplantation (HSCT), as well as their correlation with conditioning regimens, and analyse the effect of hormone replacement therapy (HRT) in young women after HSCT. Methods: Retrospective case series study. The clinical data of 147 women who underwent HSCT in the First Affiliated Hospital of Soochow University from January 2010 to January 2021 were retrospectively analyzed. The sex hormone levels were measured and followed-up, and the survival, menstrual fertility and the use of HRT of the patients were also followed-up. The sex hormone levels were measured after transplantation, and the ovarian function was evaluated. Independent sample t test and χ2 test were used for comparison between the two groups. Results: The median age of the 147 patients was 26 (range, 10-45) years. Of them, 135 patients received allogeneic HSCT and 12 patients received autologous HSCT. Furthermore, 129 patients received myeloablative conditioning, and 18 patients received reduced conditioning dose. The median follow-up time was 50 months (range, 18-134 months). Five patients died of disease recurrence during follow-up. Of the 54 patients with subcutaneous injection of zoladex, three recovered menstruation spontaneously after transplantation, and all of them were myeloablative conditioning patients, one patient gave birth to twins through assisted reproductive technology. Ninety-three patients did not use zoladex before conditioning, two patients with aplastic anemia with non-myeloablative transplantation resumed menstruation spontaneously, and conceived naturally. The level of follicle stimulating hormone after transplantation in patients receiving myeloablative conditioning regimen was significantly higher than that in patients receiving reduced-dose conditioning regimen [(95.28±3.94) U/L vs. (71.85±10.72) U/L, P=0.039]. Among 147 patients, 122 patients developed premature ovarian failure, 83 patients received sex hormone replacement therapy after transplantation, and 76 patients recovered menstruation and improved endocrine function. Conclusions: The incidence of premature ovarian failure is high in female patients after HSCT, and patients have a chance at natural conception. Reducing the dose of conditioning regimen and the application of zoladex before transplantation can reduce ovarian of conditioning drugs. HRT after transplantation can partially improve the endocrine function of patients.
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Affiliation(s)
- Q W Xu
- Department of Hematology, the First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215006, China
| | - Y Y Du
- Department of Hematology, the First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215006, China
| | - K K Lyu
- Department of Hematology, the First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215006, China
| | - M M Xu
- Department of Hematology, the First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215006, China
| | - C Y Gu
- Department of Hematology, the First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215006, China
| | - H Z Kang
- Department of Hematology, the First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215006, China
| | - S L Feng
- Department of Hematology, the First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215006, China
| | - Y J Liu
- Department of Hematology, the First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215006, China
| | - D P Wu
- Department of Hematology, the First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215006, China
| | - Y Han
- Department of Hematology, the First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215006, China
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You M, Liu J, Li J, Ji C, Ni H, Guo W, Zhang J, Jia W, Wang Z, Zhang Y, Yao Y, Yu G, Ji H, Wang X, Han D, Du X, Xu MM, Yu S. Mettl3-m 6A-Creb1 forms an intrinsic regulatory axis in maintaining iNKT cell pool and functional differentiation. Cell Rep 2023; 42:112584. [PMID: 37267102 DOI: 10.1016/j.celrep.2023.112584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 03/07/2023] [Accepted: 05/15/2023] [Indexed: 06/04/2023] Open
Abstract
N6-methyladenosine (m6A) methyltransferase Mettl3 is involved in conventional T cell immunity; however, its role in innate immune cells remains largely unknown. Here, we show that Mettl3 intrinsically regulates invariant natural killer T (iNKT) cell development and function in an m6A-dependent manner. Conditional ablation of Mettl3 in CD4+CD8+ double-positive (DP) thymocytes impairs iNKT cell proliferation, differentiation, and cytokine secretion, which synergistically causes defects in B16F10 melanoma resistance. Transcriptomic and epi-transcriptomic analyses reveal that Mettl3 deficiency disturbs the expression of iNKT cell-related genes with altered m6A modification. Strikingly, Mettl3 modulates the stability of the Creb1 transcript, which in turn controls the protein and phosphorylation levels of Creb1. Furthermore, conditional targeting of Creb1 in DP thymocytes results in similar phenotypes of iNKT cells lacking Mettl3. Importantly, ectopic expression of Creb1 largely rectifies such developmental defects in Mettl3-deficient iNKT cells. These findings reveal that the Mettl3-m6A-Creb1 axis plays critical roles in regulating iNKT cells at the post-transcriptional layer.
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Affiliation(s)
- Menghao You
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Jingjing Liu
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Jie Li
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, and China National Center for Bioinformation, Chinese Academy of Sciences, Beijing 100101, China; Department of Basic Medical Sciences, School of Medicine, Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, THU-PKU Center for Life Sciences, Tsinghua University, Beijing 100084, China
| | - Ce Ji
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Haochen Ni
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, and China National Center for Bioinformation, Chinese Academy of Sciences, Beijing 100101, China
| | - Wenhui Guo
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Jiarui Zhang
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Weiwei Jia
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Zhao Wang
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Yajiao Zhang
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Yingpeng Yao
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Guotao Yu
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Huanyu Ji
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Xiaohu Wang
- Institute for Immunology and School of Medicine, Tsinghua University, Beijing 100084, China
| | - Dali Han
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, and China National Center for Bioinformation, Chinese Academy of Sciences, Beijing 100101, China
| | - Xuguang Du
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China.
| | - Meng Michelle Xu
- Department of Basic Medical Sciences, School of Medicine, Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, THU-PKU Center for Life Sciences, Tsinghua University, Beijing 100084, China.
| | - Shuyang Yu
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China.
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Xu MM, Wu Y, Li SS, Geng N, Lu W, Duan BW, Duan ZP, Li GM, Li J, Chen Y. [Application of different prognostic scores in liver transplantation decision-making for acute-on-chronic liver failure]. Zhonghua Gan Zang Bing Za Zhi 2023; 31:574-581. [PMID: 37400380 DOI: 10.3760/cma.j.cn501113-20230202-00031] [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: 07/05/2023]
Abstract
Objective: To compare the impact of different prognostic scores in patients with acute-on-chronic liver failure (ACLF) in order to provide treatment guidance for liver transplantation. Methods: The information on inpatients with ACLF admitted at Beijing You'an Hospital Affiliated to Capital Medical University and the First Affiliated Hospital of Zhejiang University School of Medicine from January 2015 to October 2022 was collected retrospectively. ACLF patients were divided into liver transplantation and non-liver transplantation groups, and the two groups prognostic conditions were followed-up. Propensity score matching was carried out between the two groups on the basis of liver disease (non-cirrhosis, compensated cirrhosis, and decompensated cirrhosis), the model for end-stage liver disease incorporating serum sodium (MELD-Na), and ACLF classification as matching factors. The prognostic condition of the two groups after matching was compared. The difference in 1-year survival rate between the two groups was analyzed under different ACLF grades and MELD-Na scores. The independent sample t-test or rank sum test was used for inter-group comparison, and the χ (2) test was used for the comparison of count data between groups. Results: In total, 865 ACLF inpatients were collected over the study period. Of these, 291 had liver transplantation and 574 did not. The overall survival rates at 28, 90, and 360 days were 78%, 66%, and 62%, respectively. There were 270 cases of matched ACLF post-liver transplantation and 270 cases without ACLF, in accordance with a ratio of 1:1. At 28, 90, and 360 days, patients with non-liver transplantation had significantly lower survival rates (68%, 53%, and 49%) than patients with liver transplantation (87%, 87%, and 78%, respectively; P < 0.001). Patients were classified into four groups according to the ACLF classification criteria. Kaplan-Meier survival analysis showed that the survival rates of liver transplantation and non-liver transplantation patients in ACLF grade 0 were 77.2% and 69.4%, respectively, with no statistically significant difference (P = 0.168). The survival rate with an ACLF 1-3 grade was significantly higher in liver transplantation patients than that of non-liver transplantation patients (P < 0.05). Patients with ACLF grades 1, 2, and 3 had higher 1-year survival rates compared to non-liver transplant patients by 50.6%, 43.6%, and 61.7%, respectively. Patients were divided into four groups according to the MELD-Na score. Among the patients with a MELD-Na score of < 25, the 1-year survival rates for liver transplantation and non-liver transplantation were 78.2% and 74.0%, respectively, and the difference was not statistically significant (P = 0.149). However, among patients with MELD-Na scores of 25-30, 30-35, and≥35, the survival rate was significantly higher in liver transplantation than that of non-liver transplantation, and the 1-year survival rate increased by 36.4%, 54.9%, and 62.5%, respectively (P < 0.001). Further analysis of the prognosis of patients with different ACLF grades and MELD-Na scores showed that ACLF grades 0 or 1 and MELD-Na score of < 30 had no statistically significant difference in the 1-year survival rate between liver transplantation and non-liver transplantation (P > 0.05), but in patients with MELD-Na score≥30, the 1-year survival rate of liver transplantation was higher than that of non-liver transplantation patients (P < 0.05). In the ACLF grade 0 and MELD-Na score of≥30 group, the 1-year survival rates of liver transplantation and non-liver transplantation patients were 77.8% and 25.0% respectively (P < 0.05); while in the ACLF grade 1 and MELD-Na score of≥30 group, the 1-year survival rates of liver transplantation and non-liver transplantation patients were 100% and 20.0%, respectively (P < 0.01). Among patients with ACLF grade 2, the 1-year survival rate with MELD-Na score of < 25 in patients with liver transplantation was 73.9% and 61.6%, respectively, and the difference was not statistically significant (P > 0.05); while in the liver transplantation patients group with MELD-Na score of ≥25, the 1-year survival rate was 79.5%, 80.8%, and 75%, respectively, which was significantly higher than that of non-liver transplantation patients (36.6%, 27.6%, 15.0%) (P < 0.001). Among patients with ACLF grade 3, regardless of the MELD-Na score, the 1-year survival rate was significantly higher in liver transplantation patients than that of non-liver transplantation patients (P < 0.01). Additionally, among patients with non-liver transplantation with an ACLF grade 0~1 and a MELD-Na score of < 30 at admission, 99.4% survived 1 year and still had an ACLF grade 0-1 at discharge, while 70% of deaths progressed to ACLF grade 2-3. Conclusion: Both the MELD-Na score and the EASL-CLIF C ACLF classification are capable of guiding liver transplantation; however, no single model possesses a consistent and precise prediction ability. Therefore, the combined application of the two models is necessary for comprehensive and dynamic evaluation, but the clinical application is relatively complex. A simplified prognostic model and a risk assessment model will be required in the future to improve patient prognosis as well as the effectiveness and efficiency of liver transplantation.
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Affiliation(s)
- M M Xu
- Fourth Department of Liver Disease, Beijing Youan Hospital, Capital Medical University, Beijing 100069 Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069
| | - Y Wu
- Capital Medical University, Beijing 100069
| | - S S Li
- Fourth Department of Liver Disease, Beijing Youan Hospital, Capital Medical University, Beijing 100069 Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069
| | - N Geng
- Fourth Department of Liver Disease, Beijing Youan Hospital, Capital Medical University, Beijing 100069 Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069
| | - W Lu
- Fourth Department of Liver Disease, Beijing Youan Hospital, Capital Medical University, Beijing 100069 Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069
| | - B W Duan
- Department of General Surgery Center, Beijing Youan Hospital, Capital Medical University, Beijing 100069
| | - Z P Duan
- Fourth Department of Liver Disease, Beijing Youan Hospital, Capital Medical University, Beijing 100069 Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069
| | - G M Li
- Department of General Surgery Center, Beijing Youan Hospital, Capital Medical University, Beijing 100069
| | - J Li
- The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Y Chen
- Fourth Department of Liver Disease, Beijing Youan Hospital, Capital Medical University, Beijing 100069 Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069
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Xu MM, Chen LS, Peng YQ, Sheng XL, Liang L, Gong XX, Huang SL, Zhang B. [Asymptomatic pyriform sinus fistula misdiagnosed as thyroid cancer: report of 3 cases]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:492-495. [PMID: 37150997 DOI: 10.3760/cma.j.cn115330-20230111-00015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Affiliation(s)
- M M Xu
- Department of Otorhinolaryngology Head and Neck Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - L S Chen
- Department of Otorhinolaryngology Head and Neck Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Y Q Peng
- Department of Otorhinolaryngology Head and Neck Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - X L Sheng
- Department of Otorhinolaryngology Head and Neck Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - L Liang
- Department of Otorhinolaryngology, Guangzhou First People's Hospital, Guangzhou 510515, China
| | - X X Gong
- Department of Otorhinolaryngology Head and Neck Surgery, People's Hospital of Yuxi City, Yuxi 653100, China
| | - S L Huang
- Department of Otorhinolaryngology Head and Neck Surgery, Shenzhen Children's Hospital, Shenzhen 518038, China
| | - B Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, the University of Hong Kong-Shenzhen Hospital, Shenzhen 518053, China
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Abstract
Characterization of RNA modifications has identified their distribution features and molecular functions. Dynamic changes in RNA modification on various forms of RNA are essential for the development and function of the immune system. In this review, we discuss the value of innovative RNA modification profiling technologies to uncover the function of these diverse, dynamic RNA modifications in various immune cells within healthy and diseased contexts. Further, we explore our current understanding of the mechanisms whereby aberrant RNA modifications modulate the immune milieu of the tumor microenvironment and point out outstanding research questions.
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Affiliation(s)
- Dali Han
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, China
- China National Center for Bioinformation, Beijing, China
| | - Meng Michelle Xu
- Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, Tsinghua University, Beijing, China;
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Wang J, Wang HX, Xu MM, Wang N, Zhao WH, Yang D, Du NY, Zhao W, Zhang HB, Wang YX, Liu YP, Ding Y, Zhang LL, Wang X, Zhang ZM. [Clinical application of laparoscopic sentinel lymph node mapping in early staged cervical cancer]. Zhonghua Fu Chan Ke Za Zhi 2022; 57:821-829. [PMID: 36456478 DOI: 10.3760/cma.j.cn112141-20220723-00479] [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: 06/17/2023]
Abstract
Objective: To investigate the application of sentinel lymph node biopsy (SLNB) in early-staged cervical cancer by laparoscopy. Methods: It was a prospective, single-arm, single-center clinical study. Seventy-eight cases of cervical cancer patients were collected from July 2015 to December 2018 at the Fourth Hospital of Hebei Medical University. All the patients were injected with tracer into the disease-free block of cervical tissue after anesthesia by the same surgeon who learned sentinel lymph node (SLN) mapping technique in Memorial Sloan-Kettering Cancer Center, and underwent SLN mapping followed by complete pelvic lymphadenectomy. Moreover, all the dissected lymph nodes were stained with hematoxylin eosin staining (HE) pathological examination. Besides, the negative SLN on hematoxylin-eosin staining were detected by immunohistochemistry cytokeratin staining micro-metastasis. To analyze the distribution, detection rate, false negative rate the sensitivity and negative predictive value of the SLN in early-staged cervical cancer by laparoscopy, and explore the value of SLN mapping in predicting the lymph nodes metastasis in early-staged cervical cancer. Results: The overall detection rate of SLN in cervical cancer was 99% (77/78), bilateral detection rate was 87% (68/78). The average of 12.4 lymph node (LN) and 3.6 SLN were dissected for each patients each side. SLN of cervical cancer were mainly distributed in the obturator space (61.5%, 343/558), followed by external iliac (23.5%, 131/558), common iliac (7.3%, 41/558), para-uterine (3.8%, 21/558), internal iliac (2.2%, 12/558), para abdominal aorta (1.1%, 6/558), and anterior sacral lymphatic drainage area (0.7%, 4/558). Fourteen cases of LN metastasis were found among all 78 cases. There were a total of 38 positive LN, including 26 SLN metastasis and 12 none sentinel LN metastasis. Through immunohistochemical staining and pathological ultra-staging, 1 SLN was found to be isolated tumor cells (ITC), and 5 SLNs were found to be micro-metastases (MIC), accounting for 23% (6/26) of positive SLN. SLN mapping with pathological ultra-staging improved the prediction of LN metastasis in cervical cancer (2/14). Metastatic SLN mainly distributed in the obturator space (65%, 17/26), peri-uterine region (12%, 3/26), common iliac region (15%, 4/26), and external iliac region (8%, 2/26). The consistency of the diagnosis of lymph node metastasis by SLN biopsy and postoperative retroperitoneal lymph node metastasis showed that the Kappa value was 1.000 (P<0.001), indicated that the metastasis status of SLN and retroperitoneal lymph node were completely consistent. The sensitivity, specificity, accuracy, false-negative rate, and negative predictive value of SLN biopsy in the diagnosis of lymph node metastasis were 100%, 100%, 100%, 0, and 100%, respectively. Conclusions: SLN in early-staged cervical cancer patients were mainly distributed in the obturator and external iliac space, pathalogical ultra-staging of SLN could improve the prediction of LN metastasis. Intraoperative SLN mapping is safe, feasible and could predict the state of retroperitoneal LN metastasis in early-staged cervical cancer. SLNB may replace systemic pelvic lymphadenectomy.
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Affiliation(s)
- J Wang
- Department of Gynecology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - H X Wang
- Department of Gynecology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - M M Xu
- Department of Gynecology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - N Wang
- Department of Gynecology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - W H Zhao
- Department of Gynecology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - D Yang
- Department of Gynecology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - N Y Du
- Department of Gynecology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - W Zhao
- Department of Gynecology, Shijiazhuang People's Hospital, Shijiazhuang 050011, China
| | - H B Zhang
- Department of Gynecology, Shijiazhuang People's Hospital, Shijiazhuang 050011, China
| | - Y X Wang
- Department of Gynecology, Shijiazhuang People's Hospital, Shijiazhuang 050011, China
| | - Y P Liu
- Department of Pathology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - Y Ding
- Department of Pathology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - L L Zhang
- Department of Pathology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - X Wang
- Department of Pathology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - Z M Zhang
- Department of Gynecology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
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9
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Xu MM, Yu PF, Chen Y, Duan ZP. [American college of gastroenterology clinical guidelines for acute-on-chronic liver failure]. Zhonghua Gan Zang Bing Za Zhi 2022; 30:199-203. [PMID: 35359071 DOI: 10.3760/cma.j.cn501113-20220126-00047] [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] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- M M Xu
- Fourth Department of Liver Disease, Beijing Youan Hospital, Capital Medical University, Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069, China
| | - P F Yu
- Fourth Department of Liver Disease, Beijing Youan Hospital, Capital Medical University, Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069, China
| | - Y Chen
- Fourth Department of Liver Disease, Beijing Youan Hospital, Capital Medical University, Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069, China
| | - Z P Duan
- Fourth Department of Liver Disease, Beijing Youan Hospital, Capital Medical University, Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069, China
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10
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Zhang X, Cong T, Wei L, Zhong B, Wang X, Sun J, Wang S, Xu MM, Zhu P, Jiang H, Wang J. YTHDF3 modulates hematopoietic stem cells by recognizing RNA m6A modification on Ccnd1. Haematologica 2022; 107:2381-2394. [PMID: 35112553 PMCID: PMC9521252 DOI: 10.3324/haematol.2021.279739] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Indexed: 11/09/2022] Open
Abstract
Hematopoietic stem cells (HSCs) build up the blood system throughout lifespan. N6-methyladenosine (m6A), the most prevalent RNA modification, modulates gene expression via the processes of "writing" and "reading". Recent studies showed that m6A "writer" genes (Mettl3 and Mettl14) play an essential role in HSCs. However, which reader deciphers the m6A modification to modulate HSCs remains unknown. In this study, we observed that dysfunction of Ythdf3 and Ccnd1 severely impaired the reconstitution capacity of HSCs, which phenocopies Mettl3 deficient HSCs. Dysfunction of Ythdf3 and Mettl3 results in the translational defect of Ccnd1. Ythdf3 and Mettl3 regulates HSCs by transmitting m6A RNA methylation on the 5'UTR of Ccnd1. Enforced Ccnd1 completely rescues the defect of Ythdf3-/- HSCs and partially rescues Mettl3-compromised HSCs. Taken together, this study for the first time identified that Ccnd1 is the target of METTL3 and YTHDF3 to transmit m6A RNA methylation signal to regulate HSCs reconstitution capacity.
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Affiliation(s)
- Xiaofei Zhang
- School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084
| | - Tingting Cong
- School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084
| | - Lei Wei
- Ministry of Education Key Laboratory of Bioinformatics, Center for Synthetic and Systems Biology, Bioinformatics Division, BNRIST, Department of Automation, Tsinghua University, Beijing
| | - Bixi Zhong
- Ministry of Education Key Laboratory of Bioinformatics, Center for Synthetic and Systems Biology, Bioinformatics Division, BNRIST, Department of Automation, Tsinghua University, Beijing
| | - Xiaowo Wang
- Ministry of Education Key Laboratory of Bioinformatics, Center for Synthetic and Systems Biology, Bioinformatics Division, BNRIST, Department of Automation, Tsinghua University, Beijing
| | - Jin Sun
- Department of Geriatrics, The Second Medical Center and National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, 28 Fuxing Road, Beijing
| | - Shuxia Wang
- Department of Geriatrics, The Second Medical Center and National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, 28 Fuxing Road, Beijing
| | - Meng Michelle Xu
- Department of Basic Medical Sciences, School of Medicine, Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, THU-PKU Center for Life Sciences, Tsinghua University, Beijing
| | - Ping Zhu
- Department of Geriatrics, The Second Medical Center and National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, 28 Fuxing Road, Beijing.
| | - Hong Jiang
- Kidney Disease Center, the First Affiliated Hospital, College of Medicine, Zhejiang University 310003.
| | - Jianwei Wang
- School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084.
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11
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Akkari L, Finley SD, Ho PC, Jenkins M, Maier BB, McGranahan N, Mutebi M, Perera RM, Robles-Espinoza CD, Vardhana S, Wan L, Xu MM. Challenges and opportunities in 2021. Nat Cancer 2021; 2:1278-1283. [PMID: 35121916 DOI: 10.1038/s43018-021-00294-6] [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] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- Leila Akkari
- The Oncode Institute, The Netherlands Cancer Institute, Amsterdam, The Netherlands.
| | - Stacey D Finley
- Department of Biomedical Engineering, University of Southern California, Los Angeles, CA, USA.
| | - Ping-Chih Ho
- Department of Oncology, University of Lausanne, Lausanne, Switzerland.
- Ludwig Institute for Cancer Research, University of Lausanne, Lausanne, Switzerland.
| | - Misty Jenkins
- The Walter and Eliza Hall Institute of Medical Research (WEHI), Melbourne, Victoria, Australia.
| | - Barbara B Maier
- Research Center for Molecular Medicine of the Austrian Academy of Sciences (CeMM), Vienna, Austria.
| | - Nicholas McGranahan
- CRUK-UCL Lung Cancer Centre of Excellence, University College London, London, UK.
| | - Miriam Mutebi
- Aga Khan University, Nairobi, Kenya.
- VP East Africa, African Organization for Research and training in Cancer (AORTIC), Nairobi, Kenya.
| | - Rushika M Perera
- Department of Anatomy, Department of Pathology and the Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA, USA.
| | - Carla Daniela Robles-Espinoza
- International Laboratory for Human Genome Research, National Autonomous University of Mexico, Queretaro, Mexico.
- Cancer, Ageing and Somatic Mutation Programme, Wellcome Sanger Institute, Hinxton Cambridge, UK.
| | | | - Liling Wan
- University of Pennsylvania, Philadelphia, PA, USA.
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12
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Huang SL, Chen LS, Xu MM, Gong XX, Zhang B, Liang L, Sheng XL, Zhan JD, Luo XN, Lu ZM, Zhang SY. [A comparison between endoscopic CO 2 laser cauterization and open neck surgery in the treatment of congenital piriform fistula]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2021; 56:619-625. [PMID: 34256487 DOI: 10.3760/cma.j.cn115330-20200805-00647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare the efficacy, advantages and disadvantages of endoscopic CO2 laser cauterization (ECLC) and open neck surgery in the treatment of congenital pyriform sinus fistula (CPSF). Methods: From September 2014 to March 2017, 80 cases with confirmed diagnosis of CPSF received initial treatment at Guangdong Provincial People's Hospital were prospectively analyzed, including 34 males and 46 females, aged 18 to 672 (194.17±141.18) months. They were consecutively divided into endoscopic group and open-surgery group, with 40 cases in each group. Both groups of patients received surgical treatment under general anesthesia. The endoscopic group was treated by endoscopic CO2 laser cauterization, and the open-surgery group underwent the following surgery: first, we performed suspension laryngoscopy examination to confirm the presence of fistula in the bottom of the piriform fossa, then open-neck resection of congenital piriform sinus fistula with recurrent laryngeal nerve and/or lateral branch of superior laryngeal nerve anatomy plus partial thyroidectomy were performed. The data between the two groups were compared, including the operative time, intraoperative blood loss, postoperative pain, average length of stay, neck cosmetic scores, complications and cure rates. All patients were followed up in outpatient clinics. Statistical analysis was performed using SPSS 20.0 software. P<0.05 indicates that the difference is statistically significant. Results: All patients were successfully completed the operation. The operative time, intraoperative blood loss, postoperative pain and average length of hospital stay in the endoscopic group were significantly less than those in the open group [(27.4±5.5) min to (105.8±52.5) min, (0.6±0.5) ml to (33.6±41.5) ml, (1.7±0.9) points to (4.6±0.7) points, (5.9±2.9)d to(8.9±3.3)d, t values were-9.400, -5.031, -16.199, -4.293, P values were all<0.01]; The neck cosmetic score in the endoscopy group was significantly greater than that of the open group [(9.9±0.4) against (5.8±0.9) points, t=25.847, P<0.01]. Compared with the open group (15.0%, 6/40), the complication rate of the endoscopic group (7.5%, 3/40) was not statistically significant (χ²=0.50, P>0.05). Three months after the first treatment, the cure rate in the endoscopic group (82.5%, 33/40) was significantly lower than that in the open-neck group (100.0%, 40/40), χ²=5.64, P<0.05. The follow-up time was 12 months after the last treatment. Eighty cases were followed up and none was lost to follow-up. During the follow-up period, the cure rate of the endoscopy group (97.5%, 39/40) was compared with that of the open group (100.0%, 40/40), and the difference was not statistically significant. Conclusions: In the treatment of CPSF, the two-surgical method each has their advantages. Compared with open-neck surgery, ECLC is simpler, repeatable. ECLC has shorter time in operation and hospital stay, less complications, and less postoperative pain and more precise cosmetic results. It could be preferred for the initial treatment of CPSF and relapsed cases after cauterization. But subject to relatively low cure rate of one-time cauterization and uncertain long-term efficacy, it cannot completely replace the open-neck surgery at present.
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Affiliation(s)
- S L Huang
- Department of Otorhinolaryngology Head and Neck Surgery, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - L S Chen
- Department of Otorhinolaryngology Head and Neck Surgery, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - M M Xu
- Department of Otorhinolaryngology Head and Neck Surgery, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - X X Gong
- Department of Otorhinolaryngology Head and Neck Surgery, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - B Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, the University of Hong Kong-Shenzhen Hospital, Shenzhen 518053, China
| | - L Liang
- Department of Otorhinolaryngology, Nansha Hospital of Guangzhou First People's Hospital, Guangzhou 510515, China
| | - X L Sheng
- Department of Otorhinolaryngology Head and Neck Surgery, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - J D Zhan
- Department of Otorhinolaryngology Head and Neck Surgery, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - X N Luo
- Department of Otorhinolaryngology Head and Neck Surgery, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Z M Lu
- Department of Otorhinolaryngology Head and Neck Surgery, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - S Y Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
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13
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Dong L, Chen C, Zhang Y, Guo P, Wang Z, Li J, Liu Y, Liu J, Chang R, Li Y, Liang G, Lai W, Sun M, Dougherty U, Bissonnette MB, Wang H, Shen L, Xu MM, Han D. The loss of RNA N 6-adenosine methyltransferase Mettl14 in tumor-associated macrophages promotes CD8 + T cell dysfunction and tumor growth. Cancer Cell 2021; 39:945-957.e10. [PMID: 34019807 DOI: 10.1016/j.ccell.2021.04.016] [Citation(s) in RCA: 108] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 03/07/2021] [Accepted: 04/28/2021] [Indexed: 12/15/2022]
Abstract
Tumor-associated macrophages (TAMs) can dampen the antitumor activity of T cells, yet the underlying mechanism remains incompletely understood. Here, we show that C1q+ TAMs are regulated by an RNA N6-methyladenosine (m6A) program and modulate tumor-infiltrating CD8+ T cells by expressing multiple immunomodulatory ligands. Macrophage-specific knockout of an m6A methyltransferase Mettl14 drives CD8+ T cell differentiation along a dysfunctional trajectory, impairing CD8+ T cells to eliminate tumors. Mettl14-deficient C1q+ TAMs show a decreased m6A abundance on and a higher level of transcripts of Ebi3, a cytokine subunit. In addition, neutralization of EBI3 leads to reinvigoration of dysfunctional CD8+ T cells and overcomes immunosuppressive impact in mice. We show that the METTL14-m6A levels are negatively correlated with dysfunctional T cell levels in patients with colorectal cancer, supporting the clinical relevance of this regulatory pathway. Thus, our study demonstrates how an m6A methyltransferase in TAMs promotes CD8+ T cell dysfunction and tumor progression.
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Affiliation(s)
- Lihui Dong
- Department of Basic Medical Sciences, School of Medicine, Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, THU-PKU Center for Life Sciences, Tsinghua University, Beijing 100084, China
| | - Chuanyuan Chen
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, and China National Center for Bioinformation, Chinese Academy of Sciences, Beijing 100101, China; College of Future Technology, Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yawei Zhang
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, and China National Center for Bioinformation, Chinese Academy of Sciences, Beijing 100101, China; College of Future Technology, Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Peijin Guo
- Department of Basic Medical Sciences, School of Medicine, Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, THU-PKU Center for Life Sciences, Tsinghua University, Beijing 100084, China
| | - Zhenghang Wang
- Department of Gastrointestinal Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Jian Li
- Department of Gastrointestinal Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Yi Liu
- Department of Basic Medical Sciences, School of Medicine, Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, THU-PKU Center for Life Sciences, Tsinghua University, Beijing 100084, China
| | - Jun Liu
- School of Life Sciences, Peking University, Beijing 100871, China
| | - Renbao Chang
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, and China National Center for Bioinformation, Chinese Academy of Sciences, Beijing 100101, China; College of Future Technology, Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yilin Li
- Department of Basic Medical Sciences, School of Medicine, Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, THU-PKU Center for Life Sciences, Tsinghua University, Beijing 100084, China
| | - Guanghao Liang
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, and China National Center for Bioinformation, Chinese Academy of Sciences, Beijing 100101, China; College of Future Technology, Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Weiyi Lai
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Mengxue Sun
- Department of Basic Medical Sciences, School of Medicine, Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, THU-PKU Center for Life Sciences, Tsinghua University, Beijing 100084, China
| | - Urszula Dougherty
- Department of Medicine, The University of Chicago, Chicago, IL 60637, USA
| | - Marc B Bissonnette
- Department of Medicine, The University of Chicago, Chicago, IL 60637, USA
| | - Hailin Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Lin Shen
- Department of Gastrointestinal Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Meng Michelle Xu
- Department of Basic Medical Sciences, School of Medicine, Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, THU-PKU Center for Life Sciences, Tsinghua University, Beijing 100084, China.
| | - Dali Han
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, and China National Center for Bioinformation, Chinese Academy of Sciences, Beijing 100101, China; College of Future Technology, Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China; China National Center for Bioinformation, Beijing, 100101, China.
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14
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Liu Y, Liang G, Xu H, Dong W, Dong Z, Qiu Z, Zhang Z, Li F, Huang Y, Li Y, Wu J, Yin S, Zhang Y, Guo P, Liu J, Xi JJ, Jiang P, Han D, Yang CG, Xu MM. Tumors exploit FTO-mediated regulation of glycolytic metabolism to evade immune surveillance. Cell Metab 2021; 33:1221-1233.e11. [PMID: 33910046 DOI: 10.1016/j.cmet.2021.04.001] [Citation(s) in RCA: 124] [Impact Index Per Article: 41.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 01/24/2021] [Accepted: 04/05/2021] [Indexed: 12/19/2022]
Abstract
The ever-increasing understanding of the complexity of factors and regulatory layers that contribute to immune evasion facilitates the development of immunotherapies. However, the diversity of malignant tumors limits many known mechanisms in specific genetic and epigenetic contexts, manifesting the need to discover general driver genes. Here, we have identified the m6A demethylase FTO as an essential epitranscriptomic regulator utilized by tumors to escape immune surveillance through regulation of glycolytic metabolism. We show that FTO-mediated m6A demethylation in tumor cells elevates the transcription factors c-Jun, JunB, and C/EBPβ, which allows the rewiring of glycolytic metabolism. Fto knockdown impairs the glycolytic activity of tumor cells, which restores the function of CD8+ T cells, thereby inhibiting tumor growth. Furthermore, we developed a small-molecule compound, Dac51, that can inhibit the activity of FTO, block FTO-mediated immune evasion, and synergize with checkpoint blockade for better tumor control, suggesting reprogramming RNA epitranscriptome as a potential strategy for immunotherapy.
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Affiliation(s)
- Yi Liu
- Department of Basic Medical Sciences, School of Medicine, Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, THU-PKU Center for Life Sciences, Tsinghua University, Beijing 100084, China
| | - Guanghao Liang
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China; College of Future Technology, Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hongjiao Xu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wenxin Dong
- Department of Basic Medical Sciences, School of Medicine, Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, THU-PKU Center for Life Sciences, Tsinghua University, Beijing 100084, China
| | - Ze Dong
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhiwei Qiu
- Department of Basic Medical Sciences, School of Medicine, Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, THU-PKU Center for Life Sciences, Tsinghua University, Beijing 100084, China
| | - Zihao Zhang
- Department of Basic Medical Sciences, School of Medicine, Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, THU-PKU Center for Life Sciences, Tsinghua University, Beijing 100084, China
| | - Fangle Li
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China; College of Future Technology, Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yue Huang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China; School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - Yilin Li
- Department of Basic Medical Sciences, School of Medicine, Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, THU-PKU Center for Life Sciences, Tsinghua University, Beijing 100084, China
| | - Jun Wu
- Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Shenyi Yin
- State Key Laboratory of Natural and Biomimetic Drugs, Institute of Molecular Medicine, Department of Biomedical Engineering, College of Engineering, Peking University, Beijing 100871, China
| | - Yawei Zhang
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China; College of Future Technology, Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Peijin Guo
- Department of Basic Medical Sciences, School of Medicine, Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, THU-PKU Center for Life Sciences, Tsinghua University, Beijing 100084, China
| | - Jun Liu
- Department of Chemistry and Institute for Biophysical Dynamics, University of Chicago, Chicago, IL 60637, USA
| | - Jianzhong Jeff Xi
- State Key Laboratory of Natural and Biomimetic Drugs, Institute of Molecular Medicine, Department of Biomedical Engineering, College of Engineering, Peking University, Beijing 100871, China
| | - Peng Jiang
- Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Dali Han
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China; College of Future Technology, Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China; China National Center for Bioinformation, Beijing 100101, China.
| | - Cai-Guang Yang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China; School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China.
| | - Meng Michelle Xu
- Department of Basic Medical Sciences, School of Medicine, Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, THU-PKU Center for Life Sciences, Tsinghua University, Beijing 100084, China.
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Du YY, Lyu KK, Xu MM, Yao WQ, Kang HZ, Han Y, Tang XW, Ma X, Wu XJ, He XF, Wu DP, Liu YJ. [Clinical and prognostic values of TP53 mutation in patients with B-lineage acute lymphoblastic leukemia]. Zhonghua Xue Ye Xue Za Zhi 2021; 42:396-401. [PMID: 34218582 PMCID: PMC8292997 DOI: 10.3760/cma.j.issn.0253-2727.2021.05.008] [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] [MESH Headings] [Grants] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Indexed: 11/17/2022]
Abstract
Objective: To investigate the survival and prognosis of B-lineage acute lymphoblastic leukemia (B-ALL) patients with TP53 mutation. Methods: The clinical data of 479 newly diagnosed B-ALL patients treated in the First Affiliated Hospital of Soochow University from January 2016 to December 2019 were retrospectively analyzed. Results: Among 479 B-ALL patients, 34 cases (7.1%) were positive for TP53 gene mutation, and a total of 36 TP53 mutations were detected, including 10 frameshift gene mutations (27.8%) , 23 missense mutations (63.9%) and 3 nonsense mutations (8.3%) . A total of 34 (94.4%) mutations were located in the DNA binding domain (exons 5-8) .The average number of mutated genes in patients with TP53 gene mutation (2.3) and the group without TP53 gene mutation (1.1) were statistically different (P<0.001) . The proportion of Ph positive and Ph-like positive patients in the TP53 gene mutation negative group was significantly higher than that of the TP53 mutation positive group, and the difference was statistically significant (P<0.001) . The 3-year OS and EFS rates of the TP53 gene mutation negative group were significantly higher than those of the TP53 gene mutation positive group. The differences in OS and EFS rates between the two groups were statistically significant (χ(2)= 4.694, P = 0.030; χ(2)= 5.080, P= 0.024) . In the multivariate analysis, failure to achieve remission (CR) after one course of induction chemotherapy was an independent adverse prognostic factor affecting OS.Of the 34 patients with TP53 mutation, 16 underwent allogeneic hematopoietic stem cell transplantation (allo-HSCT) in the CR(1) state, and 2 patients with recurrence after transplantation obtained CR(2) after infusion of donor-derived anti-CD19 chimeric antigen receptor T (CAR-T) cells. Among the 11 patients with TP53 gene mutation who relapsed during consolidation chemotherapy, 6 received anti-CD19 CAR T cell therapy, 4 patients achieved remission and minimal residual disease (MRD) turned negative, followed by bridging allo-HSCT, and 2 of them sustained CR. Conclusion: Missense mutations are the most common in B-ALL patients with TP53 gene mutation, and the majority of mutations were located in the DNA binding domain. B-ALL patients with TP53 gene mutation should undergo allo-HSCT as soon as possible after CAR-T cell therapy has cleared the MRD after recurrence. B-ALL patients with TP53 gene mutation still have a higher recurrence rate after allo-HSCT, and the infusion of donor-derived CAR-T cells can achieve better sustained remission.
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Affiliation(s)
- Y Y Du
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215006, China
| | - K K Lyu
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215006, China
| | - M M Xu
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215006, China
| | - W Q Yao
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215006, China
| | - H Z Kang
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215006, China
| | - Y Han
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215006, China
| | - X W Tang
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215006, China
| | - X Ma
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215006, China
| | - X J Wu
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215006, China
| | - X F He
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215006, China
| | - D P Wu
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215006, China
| | - Y J Liu
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215006, China
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Xu MM, Su T, Liu YY, Zhao WN, Yu QL, Qi SX, Li JL, Li Q. [Analysis on influence and lag effects of meteorological factors on incidence of hand, foot and mouth disease in Shijiazhuang, 2017-2019]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:827-832. [PMID: 34814474 DOI: 10.3760/cma.j.cn112338-20200930-01213] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To understand the influence and lag effect of meteorological factors on the incidence of hand, foot and mouth disease (HFMD) in Shijiazhuang. Methods: The daily incidence data of HFMD in Shijiazhuang during 2017-2019 were collected from Chinese Information System for Disease Control and Prevention. The hourly meteorological data were collected form meteorological stations of Shijiazhuang of Chinese meteorological data network. The distributed lag nonlinear model was built for statistical analysis by software R 3.6.2. Results: When the daily average temperature was 15-26 ℃, the risk of incidence of HFMD increased at lag 3-6 days. However, the risk was highest when the temperature was 25 ℃ at lag 3 days (RR=1.03,95%CI:1.00-1.06). When the daily average relative humidity was more than 80%, the risk of incidence of HFMD increased at lag 5-18 days. However, the risk was highest at lag 9 days (RR=1.04, 95%CI: 1.02-1.06).When the daily average air pressure ranged from 999 hPa to 1 007 hPa, the risk of incidence of HFMD increased at lag 5-8 days. However, the risk was highest at lag 6 days (RR=1.01, 95%CI: 1.00-1.02).When the daily average precipitation ranged from 15 to 32 mm, the risk of incidence of HFMD increased at lag 3-18 days. However, the risk was highest at lag 6 days (RR=1.11, 95%CI: 1.02-1.19). Conclusions: Meteorological factors increased the risk of incidence of HFMD such as higher daily average temperature (15-26 ℃), higher daily average humidity (>80%), lower daily average air pressure (999-1 007 hPa) and higher daily average precipitation (15-32 mm) in Shijiazhuang during 2017-2019. They were all correlated with the incidence of HFMD with certain lag days. It is suggested to use these meteorological indicators for the early warning of HFMD.
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Affiliation(s)
- M M Xu
- School of Public Health, North China University of Science and Technology, Tangshan 063200, China
| | - T Su
- Institute for Viral Disease Control and Prevention, Hebei Provincial Center for Disease Control and Prevention, Shijiazhuang 050021, China
| | - Y Y Liu
- Institute for Viral Disease Control and Prevention, Hebei Provincial Center for Disease Control and Prevention, Shijiazhuang 050021, China
| | - W N Zhao
- Institute for Viral Disease Control and Prevention, Hebei Provincial Center for Disease Control and Prevention, Shijiazhuang 050021, China
| | - Q L Yu
- Institute for Viral Disease Control and Prevention, Hebei Provincial Center for Disease Control and Prevention, Shijiazhuang 050021, China
| | - S X Qi
- Institute for Viral Disease Control and Prevention, Hebei Provincial Center for Disease Control and Prevention, Shijiazhuang 050021, China
| | - J L Li
- School of Public Health, North China University of Science and Technology, Tangshan 063200, China
| | - Q Li
- Institute for Viral Disease Control and Prevention, Hebei Provincial Center for Disease Control and Prevention, Shijiazhuang 050021, China
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17
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Chen JF, Xu MM, Kang KL, Tang SG, He CQ, Qu XY, Guo SC. The effects and combinational effects of Bacillus subtilis and montmorillonite on the intestinal health status in laying hens. Poult Sci 2020; 99:1311-1319. [PMID: 32111307 PMCID: PMC7587652 DOI: 10.1016/j.psj.2019.11.016] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Revised: 10/31/2019] [Accepted: 11/03/2019] [Indexed: 01/25/2023] Open
Abstract
This study was conducted to evaluate the effects and combinational effects of Bacillus subtilis (BS) and montmorillonite (MMT) on laying performance, gut mucosal oxidation status, and intestinal immunological and physical barrier functions of laying hens. Three hundred sixty laying hens (29-week-old) were randomly assigned to a 2 × 2 factorial arrangement of treatments (n = 6) for 10 wk as follows: (1) basal diet; (2) the basal diet plus 5 × 108 cfu BS/kg; (3) the basal diet plus 0.5 g MMT/kg; and (4) the basal diet plus 5 × 108 cfu BS/kg and 0.5 g MMT/kg. Dietary supplementation with BS increased egg production and egg mass, the activities of catalase (CAT) and total superoxide dismutase in the intestinal mucosa, and villus height and villus height-to-crypt depth ratio of the jejunum (P < 0.05) but downregulated the mRNA expression levels of toll-like receptor 4 and myeloid differentiation factor 88 (MyD88) in the duodenum and jejunum, interleukin 1 beta in the duodenum, and nuclear factor kappa B P65 (NF-κB P65) and tumor necrosis factor alpha in the jejunum (P < 0.05). Dietary supplementation with MMT increased egg production and egg mass, the concentration of secretory immunoglobulin A in the duodenum, and the occludin mRNA expression level in the jejunum (P < 0.05) but reduced feed conversion ratio, malondialdehyde concentration in the duodenum and jejunum, and the mRNA expression level of MyD88 in the jejunum (P < 0.05). In addition, there was an interaction effect between BS and MMT supplementation on the CAT activity and the MyD88 mRNA expression level in the duodenum and the mRNA expression level of occludin in the jejunum (P < 0.05). In conclusion, dietary BS and MMT and their combination may improve the intestinal health status of laying hens, which may contribute to the increase in hens' laying performance.
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Affiliation(s)
- J F Chen
- Hunan Engineering Research Center of Poultry Production Safety, Hunan Co-Innovation Center of Animal Production Safety, College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, Hunan, P. R. China; College of Life Science and Resources and Environment, Yichun University, Yichun 336000, Jiangxi, P. R. China
| | - M M Xu
- Hunan Engineering Research Center of Poultry Production Safety, Hunan Co-Innovation Center of Animal Production Safety, College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, Hunan, P. R. China
| | - K L Kang
- Hunan Engineering Research Center of Poultry Production Safety, Hunan Co-Innovation Center of Animal Production Safety, College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, Hunan, P. R. China
| | - S G Tang
- Hunan Engineering Research Center of Poultry Production Safety, Hunan Co-Innovation Center of Animal Production Safety, College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, Hunan, P. R. China
| | - C Q He
- Hunan Engineering Research Center of Poultry Production Safety, Hunan Co-Innovation Center of Animal Production Safety, College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, Hunan, P. R. China
| | - X Y Qu
- Hunan Engineering Research Center of Poultry Production Safety, Hunan Co-Innovation Center of Animal Production Safety, College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, Hunan, P. R. China.
| | - S C Guo
- Hunan Engineering Research Center of Poultry Production Safety, Hunan Co-Innovation Center of Animal Production Safety, College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, Hunan, P. R. China.
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18
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Liu J, Dou X, Chen C, Chen C, Liu C, Xu MM, Zhao S, Shen B, Gao Y, Han D, He C. N 6-methyladenosine of chromosome-associated regulatory RNA regulates chromatin state and transcription. Science 2020; 367:580-586. [PMID: 31949099 DOI: 10.1126/science.aay6018] [Citation(s) in RCA: 349] [Impact Index Per Article: 87.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 11/20/2019] [Accepted: 12/30/2019] [Indexed: 12/13/2022]
Abstract
N 6-methyladenosine (m6A) regulates stability and translation of messenger RNA (mRNA) in various biological processes. In this work, we show that knockout of the m6A writer Mettl3 or the nuclear reader Ythdc1 in mouse embryonic stem cells increases chromatin accessibility and activates transcription in an m6A-dependent manner. We found that METTL3 deposits m6A modifications on chromosome-associated regulatory RNAs (carRNAs), including promoter-associated RNAs, enhancer RNAs, and repeat RNAs. YTHDC1 facilitates the decay of a subset of these m6A-modified RNAs, especially elements of the long interspersed element-1 family, through the nuclear exosome targeting-mediated nuclear degradation. Reducing m6A methylation by METTL3 depletion or site-specific m6A demethylation of selected carRNAs elevates the levels of carRNAs and promotes open chromatin state and downstream transcription. Collectively, our results reveal that m6A on carRNAs can globally tune chromatin state and transcription.
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Affiliation(s)
- Jun Liu
- Department of Chemistry and Institute for Biophysical Dynamics, University of Chicago, Chicago, IL 60637, USA.,Howard Hughes Medical Institute, University of Chicago, Chicago, IL 60637, USA
| | - Xiaoyang Dou
- Department of Chemistry and Institute for Biophysical Dynamics, University of Chicago, Chicago, IL 60637, USA.,Howard Hughes Medical Institute, University of Chicago, Chicago, IL 60637, USA
| | - Chuanyuan Chen
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China.,College of Future Technology, Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chuan Chen
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai 200120, China
| | - Chang Liu
- Department of Chemistry and Institute for Biophysical Dynamics, University of Chicago, Chicago, IL 60637, USA.,Howard Hughes Medical Institute, University of Chicago, Chicago, IL 60637, USA
| | - Meng Michelle Xu
- Department of Basic Medical Sciences, School of Medicine, Institute for Immunology, Beijing Key Laboratory for Immunological Research on Chronic Diseases, THU-PKU Center for Life Sciences, Tsinghua University, Beijing 100084. China
| | - Siqi Zhao
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China.,College of Future Technology, Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Bin Shen
- State Key Laboratory of Reproductive Medicine, Department of Histology and Embryology, Nanjing Medical University, Nanjing 211166, China
| | - Yawei Gao
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai 200120, China.
| | - Dali Han
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China. .,College of Future Technology, Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049, China.,China National Center for Bioinformation, Beijing 100101, China.,Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
| | - Chuan He
- Department of Chemistry and Institute for Biophysical Dynamics, University of Chicago, Chicago, IL 60637, USA. .,Howard Hughes Medical Institute, University of Chicago, Chicago, IL 60637, USA.,Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, IL 60637, USA
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19
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Ou LD, Zhang AJ, Li A, Tao SJ, Xu MM, Li Q, Jin PS. [Effect of human stromal vascular fraction gel on the treatment of patients with skin depressed scar and its mechanism]. Zhonghua Shao Shang Za Zhi 2020; 35:859-865. [PMID: 31877608 DOI: 10.3760/cma.j.issn.1009-2587.2019.12.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To observe content of cytokine in human stromal vascular fraction gel (SVF-GEL) and effect of SVF-GEL on biological behaviors of epidermal and dermal cells in vitro and clinical efficacy of SVF-GEL. Methods: (1) SVF-GEL was prepared using liposuction aspirates harvested from females who received abdomen liposuction in author's unit. SVF-GEL (1 mL) and high-glucose Dulbecco's modified eagle medium (DMEM, 1 mL) were respectively cultured for 24 h with high-glucose DMEM containing 10% fetal calf serum, 10 g/L penicillin, and 10 g/L streptomycin, denoted as SVF-GEL group and negative control group, with 6 samples in each group. Content of epidermal growth factor (EGF) and vascular endothelial growth factor (VEGF) in the supernatant was determined by enzyme-linked immunosorbent assay. (2) A number of 5×10(5) human skin fibroblasts (HSF) and HaCaT cells in logarithmic phase were inoculated and cultured in Transwell chambers for 12 h. All Transwell chambers containing cells were divided into SVF-GEL group (0.5 mL SVF-GEL was added for co-culture) and control group (0.5 mL high-glucose DMEM was added for co-culture), with 9 samples in each group for HSF and HaCaT cells. Scratch assay was performed after culture for 24 h, and residual scratch width was observed at post scratch hour (PSH) 0 (immediately), 24, and 48. Cell migration distance was measured at PSH 24 and 48. After culture for 24, 48, and 72 h, the number of living cell was counted using cell counter. (3) From June 2018 to June 2019, SVF-GEL was applied clinically to treat 15 patients with depressed scars on face, including 2 males and 13 females, aged 19 to 42 years. Survival condition of SVF-GEL and whether complications or not were observed 6 months after surgery. Before surgery and 6 months after surgery, depressed degree, color, and pliability of scar were compared. Vancouver Scar Scale (VSS) was employed to access color, vascularity, and pliability before surgery and 6 months after surgery, and total score was calculated. The number of patients with complete satisfaction or satisfaction was counted six months after surgery. Data were processed with analysis of variance of factorial design, paired samples t test, and Wilcoxon rank sum test. Results: (1) The content of EGF in SVF-GEL group and negative control group was (316.6±12.8) and (3.4±0.6) pg/mL, and the content of VEGF in SVF-GEL group and negative control group was (568.67±12.19) and (4.93±0.16) pg/mL, with statistically significant differences between the two groups (t=48.777, 92.485, P<0.01). (2) Residual scratch widths of HSF and HaCaT in SVF-GEL group and control group were decreased gradually along with time elapse, in which those in SVF-GEL group at PSH 24 and 48 were less than those in control group. At PSH 24 and 48, cell migration distances of HSF and HaCaT in SVF-GEL group were more than those in control group (t(HSF)=-20.304, -43.516, t(HaCaT)=-15.060, -8.684, P<0.01). After culture for 24, 48, and 72 h, the number of living cell of HSF and HaCaT in SVF-GEL group was significantly more than that in control group (t(HSF)=-3.374, -6.809, -18.036, t(HaCaT)=-4.793, -6.028, -8.141, P<0.05 or P<0.01). (3) Six months after surgery, SVF-GEL grafted into patients survived well without complications, and depressed degree of scar ameliorated obviously with lightened pigmentation and softer texture as compared with before surgery. Compared with those before surgery, VSS scores of color, vascularity, and pliability, and total score of 15 patients with depressed scars on face were obviously decreased 6 months after surgery (Z=-2.06, -2.07, -2.07, t=-15.811, P<0.05 or P<0.01). One patient was satisfied with the clinical outcome, and the rest 14 patients were completely satisfied with the clinical outcomes. Conclusions: SVF-GEL contains cytokines EGF and VEGF, which can enhance cell migration ability and proliferation ability of HSF and HaCaT cells and have obvious effects on depressed scars for clinical application.
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Affiliation(s)
- L D Ou
- Graduate School, Xuzhou Medical University, Xuzhou 221002, China
| | - A J Zhang
- Department of Plastic Surgery, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, China
| | - A Li
- Graduate School, Xuzhou Medical University, Xuzhou 221002, China
| | - S J Tao
- Graduate School, Xuzhou Medical University, Xuzhou 221002, China
| | - M M Xu
- Graduate School, Xuzhou Medical University, Xuzhou 221002, China
| | - Q Li
- Department of Plastic Surgery, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, China
| | - P S Jin
- Department of Plastic Surgery, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, China
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Han D, Liu J, Chen C, Dong L, Liu Y, Chang R, Huang X, Liu Y, Wang J, Dougherty U, Bissonnette MB, Shen B, Weichselbaum RR, Xu MM, He C. Anti-tumour immunity controlled through mRNA m 6A methylation and YTHDF1 in dendritic cells. Nature 2019; 566:270-274. [PMID: 30728504 PMCID: PMC6522227 DOI: 10.1038/s41586-019-0916-x] [Citation(s) in RCA: 599] [Impact Index Per Article: 119.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 01/10/2019] [Indexed: 12/30/2022]
Abstract
Emerging evidence revealed important roles of tumor neoantigens in generating spontaneous antitumor immune responses and predicting clinical responses to immunotherapies1,2. Despite the presence of numerous neoantigens, complete tumor elimination rarely occurs in many patients, due to failures in mounting a sufficient and lasting antitumor immune response3,4. Here, we show that durable neoantigen-specific immunity is regulated by messenger RNA (mRNA) N6-methyadenosine (m6A) methylation through the m6A-binding protein YTHDF15. In contrast to wild-type mice, Ythdf1-deficient (Ythdf1−/−) mice exhibit an elevated antigen-specific CD8+ T cell antitumor response. Loss of YTHDF1 in classical dendritic cells (cDCs) enhanced the cross-presentation of tumor antigen and the cross-priming of CD8+ T cells in vivo. Mechanistically, transcripts encoding lysosomal proteases are marked by m6A and recognized by YTHDF1. Binding of YTHDF1 to these transcripts elevates translation of lysosomal cathepsins in DCs, with the inhibition of cathepsins markedly enhancing cross-presentation of the wild-type DCs. Furthermore, the therapeutic efficacy of PD-L1 checkpoint blockade is enhanced in Ythdf1−/− mice, implicating YTHDF1 as a new potential therapeutic target in anticancer immunotherapy.
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Affiliation(s)
- Dali Han
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, China. .,Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China. .,College of Future Technology, Sino-Danish College, University of Chinese Academy of Sciences, Beijing, China.
| | - Jun Liu
- Department of Chemistry, The University of Chicago, Chicago, IL, USA.,Department of Biochemistry and Molecular Biology, The University of Chicago, Chicago, IL, USA.,Institute for Biophysical Dynamics, Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA
| | - Chuanyuan Chen
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, China.,Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China.,College of Future Technology, Sino-Danish College, University of Chinese Academy of Sciences, Beijing, China
| | - Lihui Dong
- Department of Basic Medical Sciences, School of Medicine, Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, THU-PKU Center for Life Sciences, Tsinghua University, Beijing, China
| | - Yi Liu
- Department of Basic Medical Sciences, School of Medicine, Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, THU-PKU Center for Life Sciences, Tsinghua University, Beijing, China
| | - Renbao Chang
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, China.,Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China
| | - Xiaona Huang
- Department of Radiation and Cellular Oncology, The Ludwig Center for Metastasis Research, University of Chicago, Chicago, IL, USA
| | - Yuanyuan Liu
- State Key Laboratory of Reproductive Medicine, Department of Histology and Embryology, Nanjing Medical University, Nanjing, China
| | - Jianying Wang
- State Key Laboratory of Reproductive Medicine, Department of Histology and Embryology, Nanjing Medical University, Nanjing, China
| | | | | | - Bin Shen
- State Key Laboratory of Reproductive Medicine, Department of Histology and Embryology, Nanjing Medical University, Nanjing, China
| | - Ralph R Weichselbaum
- Department of Radiation and Cellular Oncology, The Ludwig Center for Metastasis Research, University of Chicago, Chicago, IL, USA
| | - Meng Michelle Xu
- Department of Basic Medical Sciences, School of Medicine, Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, THU-PKU Center for Life Sciences, Tsinghua University, Beijing, China.
| | - Chuan He
- Department of Chemistry, The University of Chicago, Chicago, IL, USA. .,Department of Biochemistry and Molecular Biology, The University of Chicago, Chicago, IL, USA. .,Institute for Biophysical Dynamics, Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA.
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21
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Deng ZH, Zhu WJ, Quan LJ, Xu MM. [An investigation of work-related musculoskeletal disorders among sonographers in a province of China and related influencing factors]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 36:277-280. [PMID: 29996250 DOI: 10.3760/cma.j.issn.1001-9391.2018.04.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the prevalence of work-related musculoskeletal disorders (WMSDs) among sonographers in a province of China and influencing factors for WMSDs, and to provide a practical basis for the prevention and treatment of WMSDs in sonographers. Methods: From November 2016 to February 2017, stratified cluster sampling was used to select 700 sonographers from 50 hospitals in this province. A self-designed questionnaire for WMSDs in sonographers was used to investigate general data and the prevalence of WMSDs, and the influencing factors for the prevalence of WMSDs were analyzed. Results: The prevalence rate of WMSDs among these sonographers was 80.22%, and the prevalence rates of WMSDs in the shoulder, the neck, the waist, the back, the wrist, the elbow, the hip, the knee, and the ankle were 74.55%, 68.87%, 63.44%, 57.26%, 53.16%, 45.22%, 37.88%, 30.44%, and 29.24%, respectively. There was a significant difference in the prevalence rate of WMSDs between the sonographers with different ages and working years, and the prevalence rate of WMSDs tended to increase with the increase in age and working years (χ(2)=20.86 and 18.52, P<0.01) . The multivariate logistic regression analysis showed that female sex (odds ratio [OR]=1.798) , working years >16 (OR=1.004) , weekly working hours >40 (OR=1.616) , poor physical conditions (OR=1.690) , and high work fatigue (OR=1.302) were risk factors for WMSDs in sonographers. Conclusion: There are high prevalence rates of WMSDs in the shoulder, the neck, the waist, the back, the wrist, and the elbow. Sonographers should strengthen self-protection awareness, and effective preventive measures should be adopted to reduce the prevalence rate of WMSDs.
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Affiliation(s)
- Z H Deng
- The first Hospital of Jiaxing city in Zhejiang Province, Jiaxing 314000, China
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22
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Shan LH, An XY, Xu MM, Fan SP, Zhong H, Ni P, Chi H. [Analysis on the trend of innovation and development in the field of ophthalmology]. Zhonghua Yan Ke Za Zhi 2018; 54:452-463. [PMID: 29895120 DOI: 10.3760/cma.j.issn.0412-4081.2018.06.012] [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 systematically analyze the innovation and development trend in the field of ophthalmology. Methods: The latest ophthalmology funding program from the National Eye Institute and National Natural Science Foundation of China, and funding project for 2012 to 2016 from the National Institutes of Health, National Natural Science Foundation of China and National key research and development plan of China was collected. Using the comparative analysis method, the major ophthalmology funding areas at home and abroad were analyzed. Papers published in 2012 to 2016 in the field of ophthalmology were collected from the Web of Science Core Collection, among which ESI highly cited papers and hot papers were particularly selected. Using bibliometric methods, the time trend of the number of papers and the citation frequency were analyzed. Using the co-occurrence cluster analysis method, the continued focuses and emerging concerns of ophthalmology papers was analyzed. Results: The funding plan of the National Eye Institute mainly covers nine major diseases in ophthalmology. NSFC focuses on retinal damage and repair mechanisms. The National Key Research and Development Program of China focuses on research on high-end ophthalmic implants. NIH continues to focus on the molecular mechanisms of blinding eye disease such as diabetic retinopathy, age-related macular degeneration, glaucoma, corneal disease and cataracts, basic research in genetics, and advanced diagnostic techniques such as imaging. Latest areas of interest involve gene editing techniques and the application of stem cell technology in ophthalmology. In China, research and application of stem cells in ophthalmic diseases, intraocular sustained-release drug carrier, and precision medicine research in ophthalmology are emerging areas of funding. In 2012 to 2016, research topics of 168 papers collected by ESI focused on macular degeneration, retinal diseases, glaucoma and other eye diseases. How to quickly promote new drugs and new technological achievements to the clinical application is a problem in the field of ophthalmology. How to change the ophthalmology clinic model, so as to provide patients with convenient and quality service, has become a research topic that needs to be given attention to. Conclusions: Based on the multidimensional analysis of innovation and development in the field of ophthalmology, cross application and integration of ophthalmology and high - tech fields such as advanced imaging technology, stem cell technology, gene editing technology, molecular targeting, and artificial intelligence will provide a strong basis for the enhancement of China's ophthalmology research innovation and international competitiveness. Research efforts for ophthalmic transformation should be strengthened, in order to realize the clinical application of the achievements as soon as possible. (Chin J Ophthalmol, 2018, 54: 452-463).
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Affiliation(s)
- L H Shan
- Institute of Medical Information, Chinese Academy of Medical Sciences, Beijing 100020, China
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24
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Gong XX, Xu MM, Chen LS, Huang SL, Zhang B, Liang L. [Reoccurrence of congenital piriform sinus fistula after the internal opening obliteration with CO(2) laser cauterization: one case report]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 53:61-63. [PMID: 29365385 DOI: 10.3760/cma.j.issn.1673-0860.2018.01.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- X X Gong
- Department of Otorhinolaryngology Head and Neck Surgery, Guangdong General Hospital, Guangdong Academy of Medical Science, Guangzhou 510080, China
| | - M M Xu
- Department of Otorhinolaryngology Head and Neck Surgery, Guangdong General Hospital, Guangdong Academy of Medical Science, Guangzhou 510080, China
| | - L S Chen
- Department of Otorhinolaryngology Head and Neck Surgery, Guangdong General Hospital, Guangdong Academy of Medical Science, Guangzhou 510080, China
| | - S L Huang
- Department of Otorhinolaryngology Head and Neck Surgery, Guangdong General Hospital, Guangdong Academy of Medical Science, Guangzhou 510080, China
| | - B Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, The University of Hong Kong-Shenzhen Hospital, 518053 Shenzhan, China
| | - L Liang
- Department of Otorhinolaryngology, Guangzhou First People's Hospital-Nansha Hospital, 510515 Guangzhou, China
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25
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Xu ZJ, Chen LS, Zhan JD, Xu MM, Zhang B, Huang SL, Lu ZM, Luo XN, Zhang SY. [Modified rhytidectomy incision and modified Blair incision contrast research in superficial parotid gland tumor resection]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 31:1684-1687. [PMID: 29798128 DOI: 10.13201/j.issn.1001-1781.2017.21.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 09/09/2017] [Indexed: 11/12/2022]
Abstract
Objective:Evaluate the application value of modified rhytidectomy incision in superficial parotid gland tumor resection.Method:Seventy-one patients with tumor in the superficial parotid were included in this study from January 2012 to January 2015. They all accepted superficial parotidectomy or subtotal superficial parotidectomy. Thirty-six cases used modified rhytidectomy incision and 35 cases used modified blair incision. The data of operative field exposure, operating time, bleeding, the rate of complication, score of patients's satisfaction were recorded and compared between the two groups.Result:There was no statistically significant difference between the two groups in the operative field exposure, operating time and bleeding (P > 0.05). No difference was found between the two groups in the rate of facioplegia, while the rate of insensible earlobe in the modified rhytidectomy incision group was significantly lower than the modified blair incision group (P < 0.05). The score of patient's satisfaction in the modified rhytidectomy incision group was significantly higher than the other group (P < 0.05).Conclusion:The modified rhytidectomy incision provides good exposure and has the advantage of less complication and better cosmetic outcome. It is worthy of wide clinical application.
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Affiliation(s)
- Z J Xu
- Department of Otolaryngology Head and Neck Surgery, Huizhou Municipal Central People's Hospital, Huizhou, 516001,China
| | - L S Chen
- Department of Otolaryngology Head and Neck Surgery, Guangdong General Hospital
| | - J D Zhan
- Department of Otolaryngology Head and Neck Surgery, Guangdong General Hospital
| | - M M Xu
- Department of Otolaryngology Head and Neck Surgery, Guangdong General Hospital
| | - B Zhang
- Department of Otolaryngology Head and Neck Surgery, Guangdong General Hospital
| | - S L Huang
- Department of Otolaryngology Head and Neck Surgery, Guangdong General Hospital
| | - Z M Lu
- Department of Otolaryngology Head and Neck Surgery, Guangdong General Hospital
| | - X N Luo
- Department of Otolaryngology Head and Neck Surgery, Guangdong General Hospital
| | - S Y Zhang
- Department of Otolaryngology Head and Neck Surgery, Guangdong General Hospital
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Xu MM, Pu Y, Han D, Shi Y, Cao X, Liang H, Chen X, Li XD, Deng L, Chen ZJ, Weichselbaum RR, Fu YX. Dendritic Cells but Not Macrophages Sense Tumor Mitochondrial DNA for Cross-priming through Signal Regulatory Protein α Signaling. Immunity 2017; 47:363-373.e5. [PMID: 28801234 DOI: 10.1016/j.immuni.2017.07.016] [Citation(s) in RCA: 191] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Revised: 05/09/2017] [Accepted: 07/21/2017] [Indexed: 02/06/2023]
Abstract
Inhibition of cytosolic DNA sensing represents a strategy that tumor cells use for immune evasion, but the underlying mechanisms are unclear. Here we have shown that CD47-signal regulatory protein α (SIRPα) axis dictates the fate of ingested DNA in DCs for immune evasion. Although macrophages were more potent in uptaking tumor DNA, increase of DNA sensing by blocking the interaction of SIRPα with CD47 preferentially occurred in dendritic cells (DCs) but not in macrophages. Mechanistically, CD47 blockade enabled the activation of NADPH oxidase NOX2 in DCs, which in turn inhibited phagosomal acidification and reduced the degradation of tumor mitochondrial DNA (mtDNA) in DCs. mtDNA was recognized by cyclic-GMP-AMP synthase (cGAS) in the DC cytosol, contributing to type I interferon (IFN) production and antitumor adaptive immunity. Thus, our findings have demonstrated how tumor cells inhibit innate sensing in DCs and suggested that the CD47-SIRPα axis is critical for DC-driven antitumor immunity.
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Affiliation(s)
- Meng Michelle Xu
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75235, USA; Department of Radiation and Cellular Oncology, The Ludwig Center for Metastasis Research, University of Chicago, Chicago, IL 60637, USA
| | - Yang Pu
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75235, USA
| | - Dali Han
- Department of Chemistry, Department of Biochemistry and Molecular Biology, and Institute for Biophysical Dynamics, Howard Hughes Medical Institute, University of Chicago, Chicago, IL 60637, USA
| | - Yaoyao Shi
- Department of Radiation and Cellular Oncology, The Ludwig Center for Metastasis Research, University of Chicago, Chicago, IL 60637, USA
| | - Xuezhi Cao
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75235, USA
| | - Hua Liang
- Department of Radiation and Cellular Oncology, The Ludwig Center for Metastasis Research, University of Chicago, Chicago, IL 60637, USA
| | - Xiang Chen
- Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Xiao-Dong Li
- Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Liufu Deng
- Shanghai Institute of Immunology, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Zhijian J Chen
- Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Ralph R Weichselbaum
- Department of Radiation and Cellular Oncology, The Ludwig Center for Metastasis Research, University of Chicago, Chicago, IL 60637, USA
| | - Yang-Xin Fu
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75235, USA.
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27
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Fei Y, Xu MM, Huang B, Xie KY, Ni HD, Zhang L, Zhang HP, Yao M. [Assessment of the radial and ulnar arteries hemodynamic changes by ultrasound in patients with primary palmar hyperhidrosis after thoracic sympathetic block]. Zhonghua Yi Xue Za Zhi 2017; 97:1729-1733. [PMID: 28606283 DOI: 10.3760/cma.j.issn.0376-2491.2017.22.011] [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 evaluate the value of radial and ulnar arteries hemodynamic changes by ultrasound in patients with primary palmar hyperhidrosis after thoracic sympathetic block. Methods: This was a prospective study, from January 2016 to September 2016, 23 patients with primary palmar hyperhidrosis were admitted to the First Hospital of Jiaxing City, Zhejiang Province, 92 arteries of these patients who underwent thoracic sympathetic block were enrolled into this study. Diameters, peak systolic velocity (PSV), end diastolic velocity (EDV) and resistive index (RI) of the radial and ulnar arteries were examined one day before and after the operation by color Doppler ultrasound. Spectral waveforms of these arteries were observed, and palms temperature (T), oxygen saturation (SpO(2)), perfusion index (PI) were also measured. Diameters, PSV, EDV, RI, T, SpO(2) and PI of the patients with PH were compared before and after the surgery. The effect of operation was also evaluated. Results: Before surgery, diameters and EDV of the radial and ulnar arteries of the patients with PH were(2.12±0.36) mm, (1.50±0.32) mm, (4.90±1.84) cm/s, (4.71±1.65) cm/s, respectively, after surgery, the diameter of the RA, UA and EDV were (2.45±0.54) mm, (1.87±0.44) mm, (9.37±1.69) cm/s and (9.12±1.54) cm/s, which were significantly increased.Before surgery, RI of the RA and UA of the patients were (0.85±0.05), (0.97±0.07) , respectively, after surgery, RI of the RA and UA were (0.57±0.04), (0.64±0.09), respectively, which were significantly decreased after surgery. The difference was statistically significant (t=-5.23, -2.33, -19.80, -14.68, 3.31, 3.48, all P<0.01). Before surgery, PSV of the RA and UA of the patients were (46.38±15.12) cm/s, (45.60±14.88) cm/s , respectively, after surgery, PSV of the RA and UA were (46.93±16.02) cm/s, (46.19±15.30) cm/s , respectively. The difference was not statistically significant (t=-0.23, -1.39, all P>0.05). Before surgery, T, SpO(2) and PI of the patients were(29.7±1.04) ℃, (93.24±2.23) %, (1.11±0.13) % , respectively, after surgery, T, SpO(2) and PI of the patients were (35.09±1.21) ℃, (98.10±1.34) %, (4.77±1.22)% , respectively. The difference was statistically significant (t=-20.174, -1.140, -23.601, all P<0.05). The symptoms of hyperhidrosis of the patients were disappeared immediately after the surgery in both hands. All of the patients were cured within 3 months and there was no severe complications. Conclusion: Thoracic sympathetic block increase Diameters and EDV but decrease RI of the radial and ulnar arteries of the patients with PH and increase the palms temperature. Artery diameters, EDV, and RI measured by ultrasound can be used as parameters to evaluate the effect of thoracic sympathetic block in patients with PH. It's objective, non-invasive and convenient.
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Affiliation(s)
- Y Fei
- Department of Anesthesiology and Pain Medicine, the First Hospital of Jiaxing City, Zhejiang Province, Jiaxing 314001, China
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Han D, Lu X, Shih AH, Nie J, You Q, Xu MM, Melnick AM, Levine RL, He C. A Highly Sensitive and Robust Method for Genome-wide 5hmC Profiling of Rare Cell Populations. Mol Cell 2016; 63:711-719. [PMID: 27477909 DOI: 10.1016/j.molcel.2016.06.028] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 05/24/2016] [Accepted: 06/20/2016] [Indexed: 11/30/2022]
Abstract
We present a highly sensitive and selective chemical labeling and capture approach for genome-wide profiling of 5-hydroxylmethylcytosine (5hmC) using DNA isolated from ∼1,000 cells (nano-hmC-Seal). Using this technology, we assessed 5hmC occupancy and dynamics across different stages of hematopoietic differentiation. Nano-hmC-Seal profiling of purified Tet2-mutant acute myeloid leukemia (AML) murine stem cells allowed us to identify leukemia-specific, differentially hydroxymethylated regions that harbor known and candidate disease-specific target genes with differential 5hmC peaks compared to normal stem cells. The change of 5hmC patterns in AML strongly correlates with differential gene expression, demonstrating the importance of dynamic alterations of 5hmC in regulating transcription in AML. Together, covalent 5hmC labeling offers an effective approach to study and detect DNA methylation dynamics in in vivo disease models and in limited clinical samples.
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Affiliation(s)
- Dali Han
- Department of Chemistry, Department of Biochemistry and Molecular Biology, and Institute for Biophysical Dynamics, Howard Hughes Medical Institute, University of Chicago, 929 East 57th Street, Chicago, IL 60637, USA
| | - Xingyu Lu
- Department of Chemistry, Department of Biochemistry and Molecular Biology, and Institute for Biophysical Dynamics, Howard Hughes Medical Institute, University of Chicago, 929 East 57th Street, Chicago, IL 60637, USA
| | - Alan H Shih
- Leukemia Service, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Human Oncology and Pathogenesis Program and Center for Epigenetics Research, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Ji Nie
- Department of Chemistry, Department of Biochemistry and Molecular Biology, and Institute for Biophysical Dynamics, Howard Hughes Medical Institute, University of Chicago, 929 East 57th Street, Chicago, IL 60637, USA; Beijing National Laboratory for Molecular Sciences (BNLMS), MOE Key Laboratory of Bioorganic Chemistry and Molecular Engineering, College of Chemistry, Peking University, Beijing 100871, China
| | - Qiancheng You
- Department of Chemistry, Department of Biochemistry and Molecular Biology, and Institute for Biophysical Dynamics, Howard Hughes Medical Institute, University of Chicago, 929 East 57th Street, Chicago, IL 60637, USA
| | - Meng Michelle Xu
- Department of Radiation and Cellular Oncology, University of Chicago, Chicago, IL 60637, USA
| | - Ari M Melnick
- Department of Medicine/Hematology-Oncology and Department of Pharmacology, Weill Cornell Medical College, New York, NY 10065, USA; Weill Cornell Medical College, Cornell University, 413 East 69th Street, BB-1462, New York, NY 10021, USA
| | - Ross L Levine
- Leukemia Service, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Human Oncology and Pathogenesis Program and Center for Epigenetics Research, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.
| | - Chuan He
- Department of Chemistry, Department of Biochemistry and Molecular Biology, and Institute for Biophysical Dynamics, Howard Hughes Medical Institute, University of Chicago, 929 East 57th Street, Chicago, IL 60637, USA.
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Abstract
Previous studies examining the association between interleukin-6 (IL-6) -174G/C polymorphism and psoriasis risk have produced inconsistent results. The aim of this study was to offer a comprehensive review of the association between IL-6 -174G/C polymorphism and psoriasis risk through a meta-analysis. Literature search of PubMed and Embase databases was conducted to identify all eligible studies published before October 29, 2015. Four case-control studies involving 651 psoriasis cases and 552 controls were included in this meta-analysis. Data were extracted, and pooled odds ratios (ORs) with 95% confidence intervals (CIs) were calculated to assess the associations. Combined analysis revealed a significant association between this polymorphism and psoriasis risk under the recessive model (OR = 1.69, 95%CI = 1.12-2.55, P = 0.013 for GG vs GC + CC), and the heterozygous comparison model (OR = 1.70, 95%CI = 1.29-2.23, P < 0.001 for GG vs GC). However, no significant association was observed under the allelic model (OR = 1.37, 95%CI = 0.99-1.89, P = 0.060 for G vs C), the dominant model (OR = 1.25, 95%CI = 0.92-1.71, P = 0.152 for GG + GC vs CC), and the homozygote comparison model (OR = 1.62, 95%CI = 0.79-3.32, P = 0.186 for GG vs CC). We conclude that the IL-6 -174G/C polymorphism contributes to psoriasis risk. However, further studies should be performed to validate our results.
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Affiliation(s)
| | - C L Xie
- Department of Dermatology, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Huangshi, China
| | - Y J Cao
- Department of Dermatology, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Huangshi, China
| | - M M Xu
- Department of Dermatology, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Huangshi, China
| | - X Shi
- Department of Dermatology, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Huangshi, China
| | - A L Zou
- Department of Dermatology, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Huangshi, China
| | - J H Qi
- Department of Hubei Key Laboratory of Kidney Disease Pathogenesis and Intervention, Huangshi Central Hospital
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Xu MM, Pu Y, Zhang Y, Fu YX. The Role of Adaptive Immunity in the Efficacy of Targeted Cancer Therapies. Trends Immunol 2016; 37:141-153. [PMID: 26778079 DOI: 10.1016/j.it.2015.12.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2015] [Revised: 12/10/2015] [Accepted: 12/13/2015] [Indexed: 01/22/2023]
Abstract
Accumulating evidence indicates that the efficacy of tumor-targeted therapies relies on the host immune response, including targeted small-molecule and antibody approaches that were not previously thought to have an immune component. Here, we review the current understanding of how targeted therapies on tumor cells could have a major impact on the immune response, and how this relates to the therapeutic efficacy of these approaches. In this context, we evaluate different strategies that combine targeted therapies with immunotherapy approaches, and discuss past and ongoing clinical trials. We highlight gaps in knowledge, and argue that significant progress for combined therapies will require a better understanding of the complex interactions between immune cells, the tumor, and the tumor microenvironment (TME) in different cancer settings.
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Affiliation(s)
- Meng Michelle Xu
- Department of Pathology and Committee on Immunology, University of Chicago, Chicago, IL 60637, USA
| | - Yang Pu
- Department of Pathology and Committee on Immunology, University of Chicago, Chicago, IL 60637, USA
| | - Yuan Zhang
- Department of Pathology and Committee on Immunology, University of Chicago, Chicago, IL 60637, USA
| | - Yang-Xin Fu
- Department of Pathology and Committee on Immunology, University of Chicago, Chicago, IL 60637, USA; Department of Pathology and Immunology, University of Texas Southwestern Medical Center, Dallas, TX 75235, USA.
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