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Liu Y, Liu S, Jing R, Li C, Guo Y, Cai Z, Xi P, Dai P, Jia L, Zhu H, Zhang X. Identification of ASF1A and HJURP by global H3-H4 histone chaperone analysis as a prognostic two-gene model in hepatocellular carcinoma. Sci Rep 2024; 14:7666. [PMID: 38561384 PMCID: PMC10984954 DOI: 10.1038/s41598-024-58368-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 03/28/2024] [Indexed: 04/04/2024] Open
Abstract
Hepatocellular carcinoma (HCC) is a malignancy with poor prognosis. Abnormal expression of H3-H4 histone chaperones has been identified in many cancers and holds promise as a biomarker for diagnosis and prognosis. However, systemic analysis of H3-H4 histone chaperones in HCC is still lacking. Here, we investigated the expression of 19 known H3-H4 histone chaperones in HCC. Integrated analysis of multiple public databases indicated that these chaperones are highly expressed in HCC tumor tissues, which was further verified by immunohistochemistry (IHC) staining in offline samples. Additionally, survival analysis suggested that HCC patients with upregulated H3-H4 histone chaperones have poor prognosis. Using LASSO and Cox regression, we constructed a two-gene model (ASF1A, HJURP) that accurately predicts prognosis in ICGC-LIRI and GEO HCC data, which was further validated in HCC tissue microarrays with follow-up information. GSEA revealed that HCCs in the high-risk group were associated with enhanced cell cycle progression and DNA replication. Intriguingly, HCCs in the high-risk group exhibited increased immune infiltration and sensitivity to immune checkpoint therapy (ICT). In summary, H3-H4 histone chaperones play a critical role in HCC progression, and the two-gene (ASF1A, HJURP) risk model is effective for predicting survival outcomes and sensitivity to immunotherapy for HCC patients.
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Affiliation(s)
- Yongkang Liu
- National Engineering Research Center for Miniaturized Detection Systems, College of Life Science, Northwest University, Xi'an, 710069, Shaanxi, China
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Shihui Liu
- National Engineering Research Center for Miniaturized Detection Systems, College of Life Science, Northwest University, Xi'an, 710069, Shaanxi, China
| | - Rui Jing
- National Engineering Research Center for Miniaturized Detection Systems, College of Life Science, Northwest University, Xi'an, 710069, Shaanxi, China
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Congcong Li
- National Engineering Research Center for Miniaturized Detection Systems, College of Life Science, Northwest University, Xi'an, 710069, Shaanxi, China
| | - Yongqi Guo
- National Engineering Research Center for Miniaturized Detection Systems, College of Life Science, Northwest University, Xi'an, 710069, Shaanxi, China
| | - Zhiye Cai
- National Engineering Research Center for Miniaturized Detection Systems, College of Life Science, Northwest University, Xi'an, 710069, Shaanxi, China
| | - Pei Xi
- National Engineering Research Center for Miniaturized Detection Systems, College of Life Science, Northwest University, Xi'an, 710069, Shaanxi, China
| | - Penggao Dai
- National Engineering Research Center for Miniaturized Detection Systems, College of Life Science, Northwest University, Xi'an, 710069, Shaanxi, China
| | - Lintao Jia
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Hongli Zhu
- National Engineering Research Center for Miniaturized Detection Systems, College of Life Science, Northwest University, Xi'an, 710069, Shaanxi, China
| | - Xiang Zhang
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China.
- The Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China.
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Liang S, Zheng R, Zuo B, Li J, Wang Y, Han Y, Dong H, Zhao X, Zhang Y, Wang P, Meng R, Jia L, Yang A, Yan B. SMAD7 expression in CAR-T cells improves persistence and safety for solid tumors. Cell Mol Immunol 2024; 21:213-226. [PMID: 38177245 PMCID: PMC10901810 DOI: 10.1038/s41423-023-01120-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 12/03/2023] [Indexed: 01/06/2024] Open
Abstract
Despite the tremendous progress of chimeric antigen receptor T (CAR-T) cell therapy in hematological malignancies, their application in solid tumors has been limited largely due to T-cell exhaustion in the tumor microenvironment (TME) and systemic toxicity caused by excessive cytokine release. As a key regulator of the immunosuppressive TME, TGF-β promotes cytokine synthesis via the NF-κB pathway. Here, we coexpressed SMAD7, a suppressor of TGF-β signaling, with a HER2-targeted CAR in engineered T cells. These novel CAR-T cells displayed high cytolytic efficacy and were resistant to TGF-β-triggered exhaustion, which enabled sustained tumoricidal capacity after continuous antigen exposure. Moreover, SMAD7 substantially reduced the production of inflammatory cytokines by antigen-primed CAR-T cells. Mechanistically, SMAD7 downregulated TGF-β receptor I and abrogated the interplay between the TGF-β and NF-κB pathways in CAR-T cells. As a result, these CAR-T cells persistently inhibited tumor growth and promoted the survival of tumor-challenged mice regardless of the hostile tumor microenvironment caused by a high concentration of TGF-β. SMAD7 coexpression also enhanced CAR-T-cell infiltration and persistent activation in patient-derived tumor organoids. Therefore, our study demonstrated the feasibility of SMAD7 coexpression as a novel approach to improve the efficacy and safety of CAR-T-cell therapy for solid tumors.
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Affiliation(s)
- Sixin Liang
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
- School of Medicine Technology, Xinxiang Medical University, Xinxiang, Henan, 453003, China
| | - Rui Zheng
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Baile Zuo
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
- School of Medicine Technology, Xinxiang Medical University, Xinxiang, Henan, 453003, China
| | - Jia Li
- Department of Obstetrics and Gynecology, Xijing Hospital of Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Yiyi Wang
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Yujie Han
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
- School of Medicine Technology, Xinxiang Medical University, Xinxiang, Henan, 453003, China
| | - Hao Dong
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
- School of Medicine Technology, Xinxiang Medical University, Xinxiang, Henan, 453003, China
| | - Xiaojuan Zhao
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Yiting Zhang
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Pengju Wang
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Ruotong Meng
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
- College of Life Science, Yan'an University, Yan'an, Shaanxi, 716000, China
| | - Lintao Jia
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China.
| | - Angang Yang
- Department of Immunology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China.
| | - Bo Yan
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China.
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Jing R, Bai S, Zhang P, Ren H, Jia L, Li W, Zheng G. IDO-1 impairs antitumor immunity of natural killer cells in triple-negative breast cancer via up-regulation of HLA-G. Breast Cancer 2024; 31:135-147. [PMID: 37981615 PMCID: PMC10764509 DOI: 10.1007/s12282-023-01522-w] [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: 06/28/2023] [Accepted: 10/28/2023] [Indexed: 11/21/2023]
Abstract
BACKGROUND Triple-negative breast cancers (TNBC) are highly aggressive malignancies with poor prognosis. As an essential enzyme in the tryptophan-kynurenine metabolic pathway, indoleamine 2,3 dioxygenase-1 (IDO-1) has been reported to facilitate immune escape of various tumors. However, the mechanism underlying the immunosuppressive role of IDO-1 in TNBC remains largely uncharacterized. METHODS We examined the IDO-1 expression in 93 clinical TNBC tissues and paired adjacent normal tissues, and analyzed the regulation role of environmental cytokines like IFN-γ in IDO-1 expression. The effect of IDO-1 expression in TNBC cells on the function of NK cells were then evaluated and the underlying mechanisms were exploited. RESULTS IDO-1 expressed in 50 of 93 (54.1%) TNBC patients. TNBC patients with high IDO-1 expression tended to have more infiltrated immune cells including NK cells, which are less active than patients with low IDO-1 expression. NK cells could produce IFN-γ, which induced IDO-1 expression in TNBC cells, whereas IDO-1 impaired the cytotoxicity of co-cultured NK cells by upregulation of HLA-G. Blockade of HLA-G improved the antitumor activity of NK cells to TNBC in vivo. CONCLUSION TNBC cells induce dysfunction of NK cells through an IFN-γ/IDO-1/HLA-G pathway, which provide novel insights into the mechanisms of TNBC progression and demonstrate the applicability of IDO-1 and HLA-G targeting in the treatment of TNBC.
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Affiliation(s)
- Rui Jing
- College of Life Sciences, Northwest University, Xi'an, 710069, China
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers and Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, 710032, China
| | - Shukun Bai
- College of Life Sciences, Northwest University, Xi'an, 710069, China
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers and Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, 710032, China
| | - Peipei Zhang
- College of Life Sciences, Northwest University, Xi'an, 710069, China
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers and Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, 710032, China
| | - Hao Ren
- Department of Urology, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China
| | - Lintao Jia
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers and Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, 710032, China
| | - Weimiao Li
- Department of Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 Xiwu Road, Xi'an, 710004, China.
| | - Guoxu Zheng
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers and Department of Immunology, Fourth Military Medical University, 169 Changle West Road, Xi'an, 710032, China.
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Yu F, Fu J, Tan M, Xu R, Tian Y, Jia L, Zhang D, Wang Q, Gao Z. Norovirus outbreaks in hospitals in China: a systematic review. J Hosp Infect 2023; 142:32-38. [PMID: 37805116 DOI: 10.1016/j.jhin.2023.09.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/20/2023] [Accepted: 09/21/2023] [Indexed: 10/09/2023]
Abstract
BACKGROUND Norovirus outbreaks in hospitals can potentially impair patient care and result in significant financial expenses. There is currently limited information on hospital norovirus outbreaks in the Chinese mainland. AIM To systematically review the published literature to describe the characteristics of norovirus outbreaks in Chinese mainland hospitals to facilitate prompt identification and control of outbreaks. METHODS A systematic review was performed according to the Preferred Reporting Items for Systematic Review and Meta-Analysis standards. Databases including PubMed, Web of Science, and Chinese Journals Online databases (China National Knowledge Infrastructure (CNKI), Chinese Wan Fang digital database (WANFANG) were searched from inception to July 18th, 2022. FINDINGS A total of 41 norovirus Chinese hospital outbreaks occurring before July 18th, 2022 were reported in 32 articles. Most reported outbreaks were from Shanghai and Beijing, and occurred in December and January. Cases were mainly adults. The male:female ratio was 1.22:1. The majority of cases in norovirus outbreaks were hospitalized patients (56.82%); medical staff were affected in 15 outbreaks. Norovirus outbreaks occurred in both private and public hospitals, and in secondary and tertiary care centres, and occurred mainly in internal medicine and geriatric departments. Person-to-person transmission was the primary transmission mode and GII was more prevalent. CONCLUSION Norovirus outbreaks in hospitals can affect both patients and healthcare workers, sometimes causing serious financial losses. In order to have a more complete understanding of the disease burden caused by norovirus outbreaks, surveillance needs to be established in hospitals.
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Affiliation(s)
- F Yu
- The University of Hong Kong, School of Public Health, Hong Kong, China
| | - J Fu
- China Medical University, School of Public Health, Shenyang, China
| | - M Tan
- China Medical University, School of Public Health, Shenyang, China
| | - R Xu
- China Medical University, School of Public Health, Shenyang, China
| | - Y Tian
- China Medical University, School of Public Health, Shenyang, China
| | - L Jia
- Beijing Center for Disease Prevention and Control, Beijing, China
| | - D Zhang
- Beijing Center for Disease Prevention and Control, Beijing, China
| | - Q Wang
- Beijing Center for Disease Prevention and Control, Beijing, China
| | - Z Gao
- Beijing Center for Disease Prevention and Control, Beijing, China.
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Liu J, Zeng MH, Jia L, Ling SY, Ji Y, Wei XP, Xia CY, Niu CS. [C 2 pedicle screw insertion assisted by mobilization of the vertebral artery in cases with high-riding vertebral artery]. Zhonghua Wai Ke Za Zhi 2023; 61:693-699. [PMID: 37400213 DOI: 10.3760/cma.j.cn112139-20221021-00452] [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: 07/05/2023]
Abstract
Objective: To examine the feasibility, safety, and efficacy of mobilization of the vertebral artery for C2 pedicle screws in cases with high-riding vertebral artery (HRVA). Methods: The clinical data of 12 patients with basilar invagination and atlantoaxial dislocation underwent atlantoaxial reduction and fixation in the Department of Neurosurgery, the First Affiliated Hospital of University of Science and Technology of China between January 2020 and November 2021 were retrospectively analyzed. All patients had high-riding vertebral artery on at least one side that prohibited the insertion of C2 pedicle screws. There were 2 males and 10 females aged (48.0±12.8) years (range: 17 to 67 years). After correction of vertical dislocation during the operation, the C2 pedicle screw insertion and occipitocervical fixation and fusion were performed using the vertebral artery mobilization technique. Neurological function was assessed using the Japanese Orthopedic Association (JOA) scale. The preoperative and postoperative JOA score and the main radiological measurements, including the anterior atlantodental interval (ADI), the distance of the odontoid tip above the Chamberlain line, the clivus-canal angle, were collected and compared by paired t-test. Results: Mobilization of the high-riding vertebral artery was successfully completed, and C2 pedicle screws were then fulfilled after the vertebral artery was protected. There was no injury to the vertebral artery during the operation. Meanwhile, no severe surgical complications such as cerebral infarction or aggravated neurological dysfunction occurred during the perioperative period. Satisfactory C2 pedicle screw placement and reduction were achieved in all 12 patients. All patients achieved bone fusion 6 months after surgery. No looseness and shift in internal fixation or reduction loss was observed during the follow-up period. Compared to the preoperative, the postoperative ADI decreased from (6.1±1.9) mm to (2.0±1.2) mm (t=6.73, P<0.01), the distance of the odontoid tip above the Chamberlain line decreased from (10.4±2.5) mm to (5.5±2.3) mm (t=7.12, P<0.01), the clivus-canal angle increased from (123.4±11.1) ° to (134.7±9.6) ° (t=2.50, P=0.032), the JOA score increased from 13.3±2.1 to 15.6±1.2 (t=6.99, P<0.01). Conclusion: The C2 pedicle screw insertion assisted by mobilization of the vertebral artery is safe and considerably effective, providing a choice for internal fixation in cases with high-riding vertebral arteries.
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Affiliation(s)
- J Liu
- Department of Neurosurgery, the First Affiliated Hospital of University of Science and Technology of China (Anhui Provincial Hospital), Hefei 230036, China
| | - M H Zeng
- Department of Neurosurgery, the First Affiliated Hospital of University of Science and Technology of China (Anhui Provincial Hospital), Hefei 230036, China
| | - L Jia
- Department of Neurosurgery, the First Affiliated Hospital of University of Science and Technology of China (Anhui Provincial Hospital), Hefei 230036, China
| | - S Y Ling
- Department of Neurosurgery, the First Affiliated Hospital of University of Science and Technology of China (Anhui Provincial Hospital), Hefei 230036, China
| | - Y Ji
- Department of Neurosurgery, the First Affiliated Hospital of University of Science and Technology of China (Anhui Provincial Hospital), Hefei 230036, China
| | - X P Wei
- Department of Neurosurgery, the First Affiliated Hospital of University of Science and Technology of China (Anhui Provincial Hospital), Hefei 230036, China
| | - C Y Xia
- Department of Neurosurgery, the First Affiliated Hospital of University of Science and Technology of China (Anhui Provincial Hospital), Hefei 230036, China
| | - C S Niu
- Department of Neurosurgery, the First Affiliated Hospital of University of Science and Technology of China (Anhui Provincial Hospital), Hefei 230036, China
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Wu JY, Jiang K, Yan LJ, Yin LS, Huang XZ, Jia L, Sun Y. [Clinicopathological characteristics of gastric SMARCA4-deficient undifferentiated/rhabdoid carcinoma]. Zhonghua Bing Li Xue Za Zhi 2023; 52:447-453. [PMID: 37106285 DOI: 10.3760/cma.j.cn112151-20230206-00095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
Objective: To investigate the clinicopathological features and immunohistochemical phenotypes of gastric SMARCA4-deficient undifferentiated carcinoma, and to discuss the daily diagnostics of this entity and analyze its prognosis. Methods: The cases of gastric SMARCA4-deficient undifferentiated carcinoma diagnosed at the Department of Pathology, Peking University Cancer Hospital, China from January 2010 to August 2022 were collected. The histological sections were reviewed, the immunohistochemical results and clinicopathological features were analyzed, and relevant literature was reviewed. Results: Pure foci of undifferentiated carcinoma were seen in 7 cases, and 1 case was accompanied by a moderately differentiated tubular adenocarcinoma component. Undifferentiated carcinoma foci showed similar sheet-like or solid diffuse growth pattern, medium-sized tumor cells characterized by 1-2 nucleoli, and abundant cytoplasm and rhabdoid appearance. The average patient age was 65±8 years. Six patients were male and 2 were female. Immunohistochemical staining showed that undifferentiated carcinoma of all 8 tumors were negative for SMARCA4 (BRG1). Among 7 patients who underwent SMARCA2 (BRM) and SMARCB1 (INI1) staining, 4 cases showed loss of BRM expression, 2 cases showed weakly positive staining, and 1 case was diffusely positive, but all 7 cases were diffusely strong positive for INI1. The neuroendocrine marker, synaptophysin, was weakly positive in 5 cases, while CgA and CD56 were negative in 8 cases. Ki-67 index was more than 70%. Two cases were mismatch repair deficient and showed the loss of MLH1/PMS2 expression, while 1 case showed only MSH2 loss. PD-L1 staining showed that combined positive score (CPS)≥1 in 4 cases (CPS ranging from 1 to 55) and CPS<1 in the other 3 cases. Four patients had clinical stage Ⅳ disease. Two of them died within 3 months after diagnosis. Conclusions: Gastric SMARCA4-deficient undifferentiated carcinoma/rhabdoid carcinoma is a rare group of highly malignant tumors with a poor prognosis. Loss of the core subunit of SWI/SNF complex may be associated with the development of dedifferentiated histological pattern and aggressive tumor progression, which may be more frequently accompanied with mismatch repair deficiency.
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Affiliation(s)
- J Y Wu
- Department of Pathology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing 100142, China
| | - K Jiang
- Department of Pathology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing 100142, China
| | - L J Yan
- Department of Pathology, Zhongwei City People's Hospital, Zhongwei 755000, China
| | - L S Yin
- Department of Pathology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing 100142, China
| | - X Z Huang
- Department of Pathology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing 100142, China
| | - L Jia
- Department of Pathology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing 100142, China
| | - Y Sun
- Department of Pathology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing 100142, China
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Bai Q, Chen Y, Xiao X, Chang H, Xin B, Jia L, Li J, Wang Z, Yu C, Xiong H, Zhou X. 203P MET gene copy number heterogeneity in non-small cell lung cancer patients resistant to EGFR-TKIs. J Thorac Oncol 2023. [DOI: 10.1016/s1556-0864(23)00456-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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Wu SS, Sun Y, Dou XF, Ren ZY, Zhang JJ, Jia L, Yang P, Pang XH. [Analysis on infection sources and transmission chains of three outbreaks caused by 2019-nCoV Omicron variant in Beijing, China]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:373-378. [PMID: 36942330 DOI: 10.3760/cma.j.cn112338-20221112-00966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
Objective: To investigate the infection sources and the transmission chains of three outbreaks caused by 2019-nCoV Omicron variant possibly spread through cross-border logistics in Beijing. Methods: Epidemiological investigation and big data were used to identify the exposure points of the cases. Close contacts were traced from the exposure points, and the cases' and environmental samples were collected for nucleic acid tests. Positive samples were analyzed by gene sequencing. Results: The Omicron variant causing 3 outbreaks in Beijing from January to April, 2022 belonged to BA.1, BA.1.1 and BA.2. The outbreaks lasted for 8, 12 and 8 days respectively, and 6, 42 and 32 cases infected with 2019-nCoV were reported respectively. International mail might be the infection source for 1 outbreak, and imported clothes might be the infection sources for another 2 outbreaks. The interval between the shipment start time of the imported goods and the infection time of the index case was 3-4 days. The mean incubation period (Q1, Q3) was 3 (2,4) days and the mean serial interval (Q1, Q3) was 3 (2,4)days. Conclusions: The 3 outbreaks highlighted the risk of infection by Omicron variant from international logistics-related imported goods at normal temperature. Omicron variant has stronger transmissibility, indicating that rapid epidemiological investigation and strict management are needed.
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Affiliation(s)
- S S Wu
- Institute for Infectious Disease and Endemic Disease Control, Beijing Municipal Center for Disease Prevention and Control, Beijing 100013, China
| | - Y Sun
- Institute for Infectious Disease and Endemic Disease Control, Beijing Municipal Center for Disease Prevention and Control, Beijing 100013, China
| | - X F Dou
- Institute for Infectious Disease and Endemic Disease Control, Beijing Municipal Center for Disease Prevention and Control, Beijing 100013, China
| | - Z Y Ren
- Institute for Infectious Disease and Endemic Disease Control, Beijing Municipal Center for Disease Prevention and Control, Beijing 100013, China
| | - J J Zhang
- Institute for Infectious Disease and Endemic Disease Control, Beijing Municipal Center for Disease Prevention and Control, Beijing 100013, China
| | - L Jia
- Institute for Infectious Disease and Endemic Disease Control, Beijing Municipal Center for Disease Prevention and Control, Beijing 100013, China
| | - P Yang
- Central Office, Beijing Municipal Center for Disease Prevention and Control, Beijing 100013, China
| | - X H Pang
- Central Office, Beijing Municipal Center for Disease Prevention and Control, Beijing 100013, China
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Shi YF, Gao ZF, Li XH, Guo LG, Zheng QL, Long MP, Deng LJ, Du TT, Jia L, Zhao W, Song XX, Li M. [Investigation for pathological interpretation criteria and its prognostic value for P53 expression in Chinese diffuse large B-cell lymphoma]. Zhonghua Xue Ye Xue Za Zhi 2022; 43:1010-1015. [PMID: 36709106 PMCID: PMC9939333 DOI: 10.3760/cma.j.issn.0253-2727.2022.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Indexed: 01/30/2023]
Abstract
Objective: To explore the feasibility of predicting TP53 mutation risk by immunohistochemical staining (IHC) pattern of P53 in Chinese diffuse large B-cell lymphoma (DLBCL) and its correlation with a prognostic difference. Methods: Between January 2021 and December 2021, 51 DLBCL cases at Beijing Boren Hospital were gathered. These cases had both IHC and next-generation sequencing (NGS) results. IHC classified the P53 protein expression pattern into a loss (<1% ) , diffuse (>80% ) , and heterogeneous (1% -80% ) . The sensitivity and specificity of the predicting TP53 mutation by IHC were assessed by comparing the results of the NGS, and the TP53 high mutation risk group included both loss and diffuse expression of P53. From June 2016 to September 2019, Peking University Cancer Hospital collected 131 DLBCL cases with thorough clinicopathological and follow-up data. From their tumor blocks, tissue microarray blocks were made for IHC evaluation of P53 expression pattern, and prognosis effect of P53 studies. Results: Among 51 cases with both IHC and NGS results, 23 cases were classified as TP53 high mutation risk (7 cases loss and 16 cases diffuse) , 22/23 cases were proved with mutated TP53 by NGS. Only 1 of the 28 cases classified as TP53 low mutation risk was proved with mutated TP53 by NGS. IHC had a sensitivity and specificity of 95.7% and 96.4% for predicting TP53 mutation. NGS identified a total of 26 TP53 mutations with a mutation frequency of 61.57% (13.41% -86.25% ) . In the diffuse group, 16 missense mutations and 2 splice mutations were detected; 6 truncating mutations and 1 splice mutation were detected in the loss group; 1 truncating mutation was detected in the heterogeneous group. Multivariate analysis demonstrated that TP53 cases with high mutation risk have impartial adverse significance for the 131 patients included in survival analysis (HR=2.612, 95% CI 1.145-5.956, P=0.022) . Conclusion: IHC of P53 exhibiting loss (<1% ) or diffuse (>80% ) pattern indicated TP53 high mutation risk, IHC can predict TP53 mutation with high specificity and sensitivity. TP53 high mutation risk is an independent predictor for adverse survival.
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Affiliation(s)
- Y F Shi
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education) , Department of Pathology, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Z F Gao
- Department of Pathology, Peking University Third Hospital, Beijing 100191, China Department of Pathology, Beijing Boren Hospital, Beijing 100070, China
| | - X H Li
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education) , Department of Pathology, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - L G Guo
- Department of Pathology, Beijing Boren Hospital, Beijing 100070, China
| | - Q L Zheng
- Medical Laboratory of Molecular Diagnostic Laboratory, Beijing Boren Hospital Department, Beijing 100070, China
| | - M P Long
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education) , Department of Pathology, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - L J Deng
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing) , Department of Lymphoma, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - T T Du
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing) , Department of Lymphoma, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - L Jia
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education) , Department of Pathology, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - W Zhao
- Clinical Laboratory Center, Capital Medical University, Beijing 100069, China
| | - X X Song
- Department of Pathology, Hebei Eye Hospital, Shijiazhuang 054001, China
| | - M Li
- Department of Pathology, Peking University Third Hospital, Beijing 100191, China
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10
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Jiang T, He X, Zhao Z, Zhang X, Wang T, Jia L. RNA m6A reader IGF2BP3 promotes metastasis of triple-negative breast cancer via SLIT2 repression. FASEB J 2022; 36:e22618. [PMID: 36250924 DOI: 10.1096/fj.202200751rr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 10/02/2022] [Accepted: 10/07/2022] [Indexed: 11/11/2022]
Abstract
Triple-negative breast cancer (TNBC) is a group of fatal malignancies characterized by high metastatic capacity, the underlying mechanisms of which remain largely elusive. We have found here that insulin-like growth factor 2 mRNA binding protein 3 (IGF2BP3) is highly expressed in TNBC and correlates clinically with distant metastasis-free survival of TNBC patients. IGF2BP3 promotes the migration and invasion capabilities of TNBC cells dependent upon cellular RNA N6-methyladenosine (m6A) modification. Mechanistically, IGF2BP3 binds to and destabilizes m6A-methylated mRNA of the extracellular matrix glycoprotein, SLIT2, impairs its downstream signaling via the cognate receptor ROBO1, and consequently triggers the activation of canonical PI3K/AKT and MEK/ERK pathways. The IGF2BP3/SLIT2 axis is critically involved in the regulation of TNBC metastasis in vivo. These findings shed light into the regulatory network of distant metastasis of breast cancer and provide rationale for targeting the m6A machinery in the treatment of TNBC.
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Affiliation(s)
- Tongtong Jiang
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, China
| | - Xinyi He
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, China
| | - Zhining Zhao
- Department of Clinical Laboratory, Xijing 986 Hospital, Fourth Military Medical University, Xi'an, China
| | - Xiao Zhang
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, China
| | - Ting Wang
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, China
| | - Lintao Jia
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, China
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11
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Ge H, Cai J, Li D, Ding D, Jia L, Wei S, Liu Y. Half-Field Segmented VMAT Spares Organs at Risk from Postoperative Left Breast Cancer Radiotherapy. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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12
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Jia L, Buss E, Padilla O, Wang T. Prospectively Observed Histopathologic Predictors of Progression after Stereotactic Radiosurgery for Recurrent Atypical Meningioma. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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13
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Jia L, Cheng M. Correlation analysis between risk factors, BMD and serum osteocalcin, CatheK, PINP, β-crosslaps, TRAP, lipid metabolism and BMI in 128 patients with postmenopausal osteoporotic fractures. Eur Rev Med Pharmacol Sci 2022; 26:7955-7959. [PMID: 36394744 DOI: 10.26355/eurrev_202211_30147] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
OBJECTIVE Our aim is to investigate the correlation between risk factors of postmenopausal osteoporotic fracture, BMD and Bone turnover markers, lipid metabolism and BMI. SUBJECTS AND METHODS The Cox proportional hazard model was used to conduct univariate and multivariate analysis to screen the risk factors related to postmenopausal osteoporotic fractures. Blood samples were collected to detect biochemical markers of bone turnover, blood lipids content, and then measure the BMI of the survey subjects. BMD was measured and its correlation with biochemical markers of bone turnover, lipid metabolism and BMI was analyzed. RESULTS Cox univariate analysis indicated that average age, menopause, years since menopause, number of deliveries, and limb spasm are associated covariates of postmenopausal osteoporotic fractures. Where, BMD severity, history of hysterectomy or ovariectomy, and years since menopause are significant covariates for the incidence of postmenopausal osteoporotic fractures. The correlation study with lipid metabolism found that the smaller the BMI value, the greater the BMD loss; the smaller the TG value, the greater the BMD loss, exhibiting a downward trend. No difference was observed between HDL-C and LDL-C content, and the difference was not statistically significant (p>0.05). Femoral neck BMD was negatively correlated with CatheK, serum osteocalcin, PINP, β-crosslaps and TRAP, and lumbar spine BMD was also negatively correlated with CatheK, serum osteocalcin, PINP, β-crosslaps and TRAP. CONCLUSIONS Biochemical markers of bone turnover are highly expressed in postmenopausal women and increase with the decrease of bone density, which can be used as markers for disease prediction. Combined with BMI, triglyceride and other related indicators, and closely related factors such as the patient's age, the number of deliveries, it is possible to predict the incidence of PMOP fractures early.
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Affiliation(s)
- L Jia
- Jinniu District People's Hospital of Chengdu, Chengdu, China.
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14
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Wu SS, Ren ZY, Sun Y, Zhang JJ, Zhao H, Dou XF, Ma CN, Jia L, Yang P, Pang X. [Survey on infection source of a cold-chain product associated COVID-19 epidemic caused by 2019-nCoV Delta variant in Beijing]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:1230-1236. [PMID: 35981984 DOI: 10.3760/cma.j.cn112338-20220228-00157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To investigate the source and the transmission chain of a cold-chain product associated COVID-19 epidemic caused by 2019-nCoV Delta variant in Beijing. Methods: Epidemiological investigation were used to verify the exposure points of the cases. Close contacts were traced from the exposure points, and human and environmental samples were collected for nucleic acid tests. Positive samples were analyzed by gene sequencing. Results: A total of 112 cases of COVID-19 were reported in the epidemic from January 18 to February 6, 2022 in Beijing. Except for 1 case was uncertain, there were epidemiological links among 111 cases. The source of infection was the packages of imported cold-chain products from Southeast Asia, which were harvested and stored in a local cold-storage in January 2021, and packaged and sent to the cold-storage A in A district in June 2021, and then sold in batches in cold-storage B in B district from January 2022. The first case was infected in the handling of positive frozen products, and then 77 cases occurred due to working, eating and living together with the index case in the cold-storage B, cold-storage C and restaurant D. Besides the cold-storage B, C and the restaurant D, there were 16 sub-transmission chains, resulting in additional 35 cases. Conclusion: The epidemic indicated that the risk of 2019-nCoV infection from imported cold-chain products contaminated by package and highlighted the importance to strengthen the management of cold-chain industry in future.
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Affiliation(s)
- S S Wu
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - Z Y Ren
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - Y Sun
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - J J Zhang
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - H Zhao
- Institute for School Health, Beijing Center for Disease Prevention and Control,Beijing 100013, China
| | - X F Dou
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - C N Ma
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - L Jia
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - P Yang
- Central Office, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - Xinghuo Pang
- Central Office, Beijing Center for Disease Prevention and Control, Beijing 100013, China
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15
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Wang Y, Gao ZY, Jia L, Yang P, Wang QY, Lu QB, Cui FQ. [Progress in epidemiological research of norovirus infection]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:974-980. [PMID: 35725358 DOI: 10.3760/cma.j.cn112338-20211220-00999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
With characteristics of high infectivity, diverse transmission routes and high variation, norovirus is the main pathogen of sporadic cases and outbreaks of acute gastroenteritis, resulting in a serious disease burden. This paper summarizes the latest progress in epidemiological research of norovirus infection from aspects of disease burden caused by acute gastroenteritis, virus variation and predominant strains, prevention and control measures, and immunization and vaccine development.
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Affiliation(s)
- Y Wang
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - Z Y Gao
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - L Jia
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - P Yang
- Office of Beijing Center for Global Health, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - Q Y Wang
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - Q B Lu
- Department of Laboratorial Science and Technology/Vaccine Research Center, School of Public Health, Peking University, Beijing 100191, China
| | - F Q Cui
- Department of Laboratorial Science and Technology/Vaccine Research Center, School of Public Health, Peking University, Beijing 100191, China
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16
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Cui KY, Yin D, Feng L, Zhu CG, Song WH, Wang HJ, Jia L, Zhang D, Yuan S, Wu SY, He JN, Qiao Z, Dou KF. [Benefits and risks of prolonged dual antiplatelet therapy after percutaneous coronary intervention with drug-eluting stent in patients with stable coronary artery disease and diabetes]. Zhonghua Xin Xue Guan Bing Za Zhi 2022; 50:458-465. [PMID: 35589594 DOI: 10.3760/cma.j.cn112148-20220114-00034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To compare the efficacy and safety of prolonged dual antiplatelet therapy (DAPT>1 year) in patients with stable coronary artery disease (CAD) and diabetes who were event-free at 1 year after percutaneous coronary intervention (PCI) with drug-eluting stent (DES) in a large and contemporary PCI registry. Methods: A total of 1 661 eligible patients were selected from the Fuwai PCI Registry, of which 1 193 received DAPT>1 year and 468 received DAPT ≤1 year. The primary endpoint was major adverse cardiac and cerebrovascular event (MACCE) and Bleeding Academic Research Consortium (BARC) type 2, 3 or 5 bleeding, MACCE was defined as a composite of all-cause death, myocardial infarction or stroke. Multivariate Cox regression analysis and inverse probability of treatment weighting (IPTW) Cox regression analysis were performed. Results: After a median follow-up of 2.5 years, patients who received DAPT>1 year were associated with lower risks of MACCE (1.4% vs. 3.2%; hazard ratio (HR) 0.412, 95% confidence interval (CI) 0.205-0.827) compared with DAPT ≤1 year, which was primarily caused by the lower all-cause mortality (0.1% vs. 2.6%; HR 0.031, 95%CI 0.004-0.236). Risks of cardiac death (0.1% vs. 1.5%; HR 0.051, 95%CI 0.006-0.416) and definite/probable ST (0.3% vs. 1.1%; HR 0.218, 95%CI 0.052-0.917) were also lower in patients received DAPT>1 year than those received DAPT ≤ 1 year. No difference was found between the two groups in terms of BARC type 2, 3, or 5 bleeding (5.3% vs. 4.1%; HR 1.088, 95%CI 0.650-1.821). Conclusions: In patients with stable CAD and diabetes who were event-free at 1 year after PCI with DES, prolonged DAPT (>1 year) provides a substantial reduction in ischemic cardiovascular events, including MACCE, all-cause mortality, cardiac mortality, and definite/probable ST, without increasing the clinically relevant bleeding risk compared with ≤ 1-year DAPT. Further well-designed, large-scale randomized trials are needed to verify the beneficial effect of prolonged DAPT in this population.
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Affiliation(s)
- K Y Cui
- Cardiometabolic Medicine Center, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - D Yin
- Cardiometabolic Medicine Center, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - L Feng
- Cardiometabolic Medicine Center, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - C G Zhu
- Cardiometabolic Medicine Center, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - W H Song
- Cardiometabolic Medicine Center, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - H J Wang
- Cardiometabolic Medicine Center, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - L Jia
- Cardiometabolic Medicine Center, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - D Zhang
- Cardiometabolic Medicine Center, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - S Yuan
- Cardiometabolic Medicine Center, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - S Y Wu
- Cardiometabolic Medicine Center, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - J N He
- Cardiometabolic Medicine Center, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Z Qiao
- Cardiometabolic Medicine Center, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - K F Dou
- Cardiometabolic Medicine Center, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
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17
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Huang Y, Jia L, Tian Y, Lyu B, Qu M, Zhang X, Liu BW, Huo D, Wu XN, Yan HQ, Yang P. [Etiological and epidemiological characteristics of Vibrio cholerae in Beijing, 2015-2021]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:734-738. [PMID: 35589581 DOI: 10.3760/cma.j.cn112338-20220123-00064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To analyze the etiological and epidemiological characteristics of Vibrio cholerae in Beijing during 2015-2021 and provide evidence for the prevention and control of cholera. Methods: The V. cholerae strains isolated in Beijing during 2015-2021 were analyzed by serotyping and virulence genes detection. Pulsed field gel electrophoresis (PFGE) was performed for the molecular typing of the strains. Based on the collected epidemiological and clinical data of cholera cases,the epidemiological characteristics of cholera were analyzed by descriptive epidemiology method. Results: A total of 76 Vibrio cholerae O1 strains were isolated in Beijing during 2015-2021, including 61 strains from human, 10 strains from environment and 5 strains from seafood. The 76 strains consisted of 68 Ogawa strains and 8 Inaba strains. Six Ogawa strains isolated from sporadic cases carried ctxAB. After NotⅠ digestion, 76 strains were divided into 33 PFGE patterns. From 2015 to 2021, a total of 38 cholera epidemics were reported in Beijing, most of them were sporadic ones, accounting for 92.11% (35/38). A total of 45 cases were reported, and the cases occurred during June-September accounted for 97.78% (44/45). Cholera cases occurred in 9 districts of Beijing, and the cases reported in Chaoyang district accounted for 42.22% (19/45) and in Changping district accounted for 31.11% (14/45). The age of the cholera cases ranged from 19 to 63 years. Except for one case with unknown clinical symptoms, 44 cases had diarrhea symptoms with 84.09% (37/44) of the cases reporting diarrhea (3-9 times/day), followed by yellow watery stool (95.45%, 42/44), abdominal pain (68.18%, 30/44), nausea and vomiting (40.91%, 18/44) and fever (36.36%, 16/44). Conclusion: Vibrio cholerae strains isolated in Beijing during 2015-2021 were mainly O1 serotype Ogawa,most of which were non-toxigenic. The PFGE of the strains varied. Cholera epidemics occurred in 9 districts of Beijing, but most were sporadic ones with incidence peak during June-September.
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Affiliation(s)
- Y Huang
- Beijing Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - L Jia
- Beijing Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - Y Tian
- Beijing Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - B Lyu
- Beijing Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - M Qu
- Beijing Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - X Zhang
- Beijing Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - B W Liu
- Beijing Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - D Huo
- Beijing Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - X N Wu
- Beijing Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - H Q Yan
- Beijing Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - P Yang
- Beijing Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China
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18
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Dong SB, Wang XL, Zhao H, Wang Y, Liu BW, Liu YH, Pan Y, Jia L, Wang QY, Yang P. [Epidemiological characteristics of imported COVID-19 cases in Beijing]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:478-482. [PMID: 35443300 DOI: 10.3760/cma.j.cn112338-20211213-00975] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To analyze the epidemiological characteristics of imported COVID-19 cases and the effect of vaccination on virus load and disease severity of the cases in Beijing. Methods: The data of the imported COVID-19 cases in Beijing were collected from the National Notifiable Infectious Disease Reporting System of China Information for Disease Control and Prevention and Epidemiology investigation. The data were processed and analyzed by Excel 2010 and SPSS 22.0. Results: From June 1 to September 30, 2021, a total of 171 imported COVID-19 cases were reported in Beijing, of which 66.67% (114/171) were asymptomatic. The cases were mainly from the Philippines, the United Arab Emirates, the United Kingdom and the Russian Federation, accounting for 67.84% (116/171). The male to female ratio of the cases was 2∶1 (114∶57). The median age M (Q1, Q3) of the cases was 28 (23, 36) years. The cases of Chinese accounted for 80.12% (137/171). The sequencing of the whole genome of the virus in 47 imported COVID-19 cases showed that the proportion of Delta variant was 76.60% (36/47). The COVID-19 vaccination coverage rate in the cases was 60.82% (104/171), but the full vaccination coverage rate was 53.80% (92/171). In the imported COVID-19 cases, 13.53% (23/170) were screened to be SARS-CoV-2 nucleic acid positive on the day when they arrived in Beijing, and all the cases were positive for 2019-nCoV nucleic acid within 28 days. The severity of the disease was higher in the unvaccinated group than in the partially vaccinated group and fully vaccinated group (P<0.001). In the unvaccinated group, there were 1 severe case and 1 critical case. The median Ct values M (Q1, Q3) of N gene and ORFlab gene in unvaccinated group were 32.51 (23.23, 36.06) and 32.78 (24.00, 36.38), respectively. There was no significant difference in the median of double-gene Ct value between the partially vaccinated group and the fully vaccinated group. Conclusions: During the study period, most of the imported COVID-19 cases in Beijing were asymptomatic. No matter vaccinated or not, the viral loads in the COVID-19 cases were similar, but the vaccination could reduce the severity of the disease.
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Affiliation(s)
- S B Dong
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - X L Wang
- Office of Beijing Center for Global Health, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - H Zhao
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - Y Wang
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - B W Liu
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - Y H Liu
- Office of Beijing Center for Global Health, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - Y Pan
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - L Jia
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - Q Y Wang
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - P Yang
- Office of Beijing Center for Global Health, Beijing Center for Disease Prevention and Control, Beijing 100013, China
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Abstract
Human leukocyte antigen (HLA)-G is a nonclassical MHC Class I molecule, which was initially reported as a mediator of immune tolerance when expressed in extravillous trophoblast cells at the maternal-fetal interface. HLA-G is the only known ligand of killer cell immunoglobulin-like receptor 2DL4 (KIR2DL4), an atypical family molecule that is widely expressed on the surface of NK cells. Unlike other KIR receptors, KIR2DL4 contains both an arginine–tyrosine activation motif in its transmembrane region and an immunoreceptor tyrosine-based inhibitory motif (ITIM) in its cytoplasmic tail, suggesting that KIR2DL4 may function as an activating or inhibitory receptor. The immunosuppressive microenvironment exemplified by a rewired cytokine network and upregulated immune checkpoint proteins is a hallmark of advanced and therapy-refractory tumors. Accumulating evidence has shown that HLA-G is an immune checkpoint molecule with specific relevance in cancer immune escape, although the role of HLA-G/KIR2DL4 in antitumor immunity is still uncharacterized. Our previous study had shown that HLA-G was a pivotal mediator of breast cancer resistance to trastuzumab, and blockade of the HLA-G/KIR2DL4 interaction can resensitize breast cancer to trastuzumab treatment. In this review, we aim to summarize and discuss the role of HLA-G/KIR2DL4 in the immune microenvironment of breast cancer. A better understanding of HLA-G is beneficial to identifying novel biomarker(s) for breast cancer, which is important for precision diagnosis and prognostic assessment. In addition, it is also necessary to unravel the mechanisms underlying HLA-G/KIR2DL4 regulation of the immune microenvironment in breast cancer, hopefully providing a rationale for combined HLA-G and immune checkpoints targeting for the effective treatment of breast cancer.
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Affiliation(s)
- Guoxu Zheng
- State Key Laboratory of Cancer Biology, Department of Immunology, Fourth Military Medical University, Xi'an, China
| | - Lintao Jia
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, China
| | - An-Gang Yang
- State Key Laboratory of Cancer Biology, Department of Immunology, Fourth Military Medical University, Xi'an, China
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Dong SB, Wang XL, Huo D, Li RQ, Yang Y, Liang ZC, Wang QY, Jia L. [Epidemiological characteristics of hand, foot and mouth disease among people aged 6 and over in Beijing, 2011-2020]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:207-212. [PMID: 35184486 DOI: 10.3760/cma.j.cn112338-20210511-00387] [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: 06/14/2023]
Abstract
Objective: To analyze the epidemiological characteristics of hand, foot and mouth disease (HFMD) among people ≥6 years old in Beijing from 2011 to 2020. Methods: The incidence data of HFMD cases from 2011 to 2020 were collected from the National Notifiable Infectious Disease Reporting System of China Information for Disease Control and Prevention and the etiological surveillance of HFMD in 29 sentinel hospitals from 16 districts of Beijing. Descriptive epidemiological methods were used to analyze the distributions, pathogen constituents, and changes of HFMD cases in Beijing people ≥6 years old. Results: From 2011 to 2020, a total of 38 183 cases of HFMD were reported among people ≥6 years old in Beijing, of which 46 (0.12%) cases were severe. The average annual reported incidence was 19.04/100 000. The ratio of males to females were 1.37∶1(22 064∶16 119). The proportion of HFMD in people ≥6 years old increased from 7.56%(2 606/34 488) in 2011 to 24.54% (546/2 225) in 2020. The average incidence of HFMD was higher in Shunyi district, Yanqing district, and Tongzhou district than in other districts in Beijing. The positive rate of enterovirus in sentinel surveillance was 66.78% (1 976/2 959), the proportion of enterovirus group A 71 (EV-A71) was 45.29% (101/223) in 2014, no EV-A71 positive was detected in 2020, and the proportion of Coxsackievirus A 6 (CV-A6) increased from 15.11% (34/225) in 2016 to 81.08% (60/74) in 2020. Conclusions: From 2011 to 2020, the proportion of cases with HFMD in people ≥6 years old in Beijing increased yearly, and the proportion of EV-A71 positive patients decreased basically. Since 2016, CV-A6 has gradually become the dominant pathogen. More attention should be paid to the epidemic situation and dynamic pathogen changes of hand foot mouth disease in people ≥6 years old.
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Affiliation(s)
- S B Dong
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control/Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - X L Wang
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control/Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - D Huo
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control/Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - R Q Li
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control/Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - Y Yang
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control/Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - Z C Liang
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control/Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - Q Y Wang
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control/Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - L Jia
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control/Beijing Research Center for Preventive Medicine, Beijing 100013, China
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21
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Li G, Song Z, Wu C, Li X, Zhao L, Tong B, Guo Z, Sun M, Zhao J, Zhang H, Jia L, Li S, Wang L. Downregulation of NEDD4L by EGFR signaling promotes the development of lung adenocarcinoma. J Transl Med 2022; 20:47. [PMID: 35090513 PMCID: PMC8800232 DOI: 10.1186/s12967-022-03247-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 01/11/2022] [Indexed: 12/24/2022] Open
Abstract
Cumulative evidence indicates that the abnormal regulation of the NEDD4 family of E3-ubiquitin ligases participates in the tumorigenesis and development of cancer. However, their role in lung adenocarcinoma (LUAD) remains unclear. This study comprehensively analyzed the NEDD4 family in LUAD data sets from public databases and found only NEDD4L was associated with the overall survival of LUAD patients. Gene set enrichment analysis (GSEA) indicated that NEDD4L might be involved in the regulation of mTORC1 pathway. Both cytological and clinical assays showed that NEDD4L inhibited the activity of the mTOR signaling pathway. In vivo and in vitro experiments showed that NEDD4L could significantly inhibit the proliferation of LUAD cells. In addition, this study also found that the expression of NEDD4L was regulated by EGFR signaling. These findings firstly revealed that NEDD4L mediates an interplay between EGFR and mTOR pathways in LUAD, and suggest that NEDD4L held great potential as a novel biomarker and therapeutic target for LUAD.
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Affiliation(s)
- Guoyin Li
- College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou, China.,State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, 169 Changle West Road, Xi'an, 710032, China.,Academy of Medical Science, Zhengzhou University, Zhengzhou, China
| | - Zewen Song
- Department of Oncology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Changjing Wu
- College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou, China
| | - XiaoYan Li
- Department of Blood Transfusion, Shanxi Province People's Hospital, Taiyuan, China
| | - Liping Zhao
- Department of Pathology, Shanxi Province People's Hospital, Taiyuan, China
| | - Binghua Tong
- College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou, China
| | - Zhenni Guo
- College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou, China
| | - Meiqing Sun
- College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou, China
| | - Jin Zhao
- College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou, China
| | - Huina Zhang
- College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou, China
| | - Lintao Jia
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, 169 Changle West Road, Xi'an, 710032, China
| | - Shengqing Li
- Department of Pulmonary and Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai, 200040, China.
| | - Lei Wang
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, 169 Changle West Road, Xi'an, 710032, China. .,Clinical Medical College, Yangzhou University, Yangzhou, China.
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22
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Abstract
Periodontitis is characterized by periodontal pocket formation, loss of attachment, and alveolar bone resorption. Both innate and adaptive immunity are involved in the pathogenesis of this oral chronic inflammatory disease. Accumulating evidence indicates a critical role of leptin in periodontal diseases. However, the mechanism by which leptin promotes periodontitis pathogenesis remains unclear. In the present study, we observed an elevated expression of leptin in the serum of periodontitis mice compared to that in healthy controls. There was a higher extent of M1 phenotype macrophage infiltration in mice periodontitis samples than in healthy controls. A positive correlation was observed between the serum leptin levels and M1 macrophages. Treatment with leptin increased M1 macrophage polarization and decreased M2 macrophage polarization in RAW 264.7 cells. Moreover, leptin facilitated lipopolysaccharide (LPS)-induced M1 phenotype macrophage polarization in RAW 264.7 cells. In bone marrow-derived macrophages (BMDMs) generated from leptin-deficient obese (ob/ob) mice, M1 macrophage polarization was significantly attenuated after LPS stimulation compared to the healthy controls. With regards to the molecular mechanism, we found that leptin activated the NOD-like receptor family pyrin domain containing 3 (NLRP3) inflammasome and promoted M1 polarization via the NLRP3 inflammasome in vitro. In BMDMs generated from Nlrp3-/- mice, M1 macrophage polarization was significantly attenuated after synchronous stimulation with leptin and LPS compared with BMDMs produced by healthy controls. The NLRP3 inhibitor MCC950 also prevented leptin-mediated M1 macrophage polarization in RAW 264.7 cells. Nlrp3-/- periodontitis models indicated that leptin aggravates the periodontal response to the ligature by promoting M1 macrophage polarization via the NLRP3 inflammasome. Taken together, we show that leptin promotes the progression of periodontitis via proinflammatory M1 macrophage skewing, and targeting leptin/NLRP3 signaling may be a feasible approach for treating periodontitis.
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Affiliation(s)
- Y Han
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, China.,National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, China
| | - Y Huang
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, China.,National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, China
| | - P Gao
- Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education, School of Life Sciences, Peking University, Beijing, China Peking-Tsinghua Center for Life Sciences, Beijing, China
| | - Q Yang
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, China.,National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, China
| | - L Jia
- National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, China.,Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China.,Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, China
| | - Y Zheng
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, China.,National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, China
| | - W Li
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, China.,National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, China
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23
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Gao J, Jia L, Tan X, Yu H. Three-dimensional Quantification of Enamel Preservation in Tooth Preparation for Porcelain Laminate Veneers: A Fully Digital Workflow In Vitro Study. Oper Dent 2022; 47:183-189. [PMID: 35029681 DOI: 10.2341/20-286-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/26/2021] [Indexed: 11/23/2022]
Abstract
OBJECTIVE This in vitro study aimed to evaluate the preservation of enamel after tooth preparation for porcelain laminate veneers (PLVs) at different preparation depths based on a fully digital workflow. METHODS AND MATERIALS Sixty extracted human maxillary anterior teeth, including 20 maxillary central incisors (MCIs), 20 maxillary lateral incisors (MLIs), and 20 maxillary canines (MCs) underwent microcomputed tomography (CT) scanning, and were reconstructed as three-dimensional (3D) enamel and dentin models. Subsequently, the three-dimensional (3D) enamel models were imported into Materialise, where each enamel model underwent seven types of virtual preparation for PLVs at preparation depths at 0.1-mm increments from 0.1-0.3-0.5 mm (D1) to 0.7-0.9-1.1 mm (D7). The enamel surface was depicted by merging the virtual preparation and, respective, dentin models. The enamel area and prepared surface were measured to calculate the percentage of enamel (R%). The data were statistically analyzed using one-way analysis of variance (ANOVA) (α=0.05). RESULTS The group-wise mean (standard deviation) R values for the MCIs were as follows: D1-D3: 100.00 (0) each, and D4-D7: 74.70 (2.45), 51.40 (5.12), 24.40 (3.06), and 0.00 (0), respectively. The group-wise mean R values for the MLIs were 100.00 (0), 73.70 (3.40), 53.50 (3.44), 25.20 (3.79), and 0.90 (0.99) for the D1-D5 groups, respectively; and 0.00 (0) each for the D6-D7 groups. The group-wise mean (standard deviations) R values for the MCs were as follows: D1-D3: 100.00 (0) each, and D4-D7: 99.00 (1.34), 77.10 (3.28), 74.20 (3.61), and 52.20 (4.09), respectively. The one-way ANOVA revealed significant differences between the seven groups in the MCIs, MLIs, and MCs (p<0.05). CONCLUSIONS Our results recommended preparation depths of up to 0.3-0.5-0.7 mm (MCIs), 0.1-0.3-0.5 mm (MLIs), and 0.4-0.6-0.8 mm (MCs) to facilitate complete intraenamel preparation. Moreover, 50% enamel was preserved at preparation depths of 0.5-0.7-0.9 mm (MCIs), 0.3-0.5-0.7 mm (MLIs), and 0.7-0.9-1.1 mm (MCs).
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Affiliation(s)
- J Gao
- Jing Gao, DDS, MSc, PhD, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China
| | - L Jia
- Luming Jia, DDS, MSc, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China
| | - X Tan
- Xin Tan, DDS, MSc, PhD, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China
| | - H Yu
- *Haiyang Yu, DDS, MSc, PhD, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China
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24
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Li Y, Shi L, Jia L, Zhang H. [Effect of half-dose fluorescein sodium contrast agent on liver and kidney functions in patients with mild to moderate chronic kidney disease: a retrospective cohort study]. Nan Fang Yi Ke Da Xue Xue Bao 2021; 41:1436-1438. [PMID: 34658362 DOI: 10.12122/j.issn.1673-4254.2021.09.22] [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: 11/24/2022]
Abstract
OBJECTIVE To observe the effect of half-dose fluorescein sodium (FINa) contrast agent on liver and kidney functions in patients with mild to moderate (stage 1 to 3) chronic kidney disease (CKD) and the incidence of contrast-induced nephropathy (CIN). METHODS Seventy-seven patients (including 50 male and 27 female patients with an mean age of 53.5±9.6 years) with CKD with normal renal function or mild to moderate abnormalities underwent fundus fluorescein angiography (FFG) examination with half-dose FINa. Liver function, blood creatinine (Scr), blood urea nitrogen (BUN), urine β2 microglobulin (β2-MG), and glomerular filtration rate (eGFR) of the patients were measured within 3 days before intravenous injection of the contrast agent and at 1, 3, 7, and 30±1 days after the operation to analyze the effect of the contrast agent on renal function. RESULTS Among the 77 patients, CIN occurred only in one case with an incidence rate of 1.30%. BUN, urine β2- MG, or rapid microalbumin/creatinine did not vary significantly after FFA in these patients. Scr levels showed no significant increments at 1 day and 7 days after FFA, but increased significantly at 3 days (24.6±2.3; P < 0.01) and 30 days (16.0±21.7; P < 0.05). Urine NAG enzymes and urinary osmolality were significantly reduced at 1, 3, 7, and 30 days after FFA (P < 0.01). The eGFR decreased significantly to 10.23±0.62 at 3 days after FAG and became normal at 7 days. Urine albumin level decreased significantly at 1, 3, 7, and 30 days after FFA (P < 0.01). Blood β2-MGFAG level increased significantly at 3 days after FFA (0.314± 0.121; P < 0.01), but decreased to 0.134±0.143 at 7 days (P < 0.05). The level transaminase decreased significantly at 3 and 7 days after FFA (P < 0.01). CONCLUSION Half-dose of FINa has no significant effect on liver function and has only minimal effect on kidney function in patients with mild to moderate CKD, and FFA with half-dose FINa can therefore be safely performed in these patients.
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Affiliation(s)
- Y Li
- Senior Department of Ophthalmology, the Third Medical Center of PLA General Hospital, Beijing 100853, China
| | - L Shi
- Southern Medical Branch of PLA General Hospital, Beijing 100036, China
| | - L Jia
- Senior Department of Ophthalmology, the Third Medical Center of PLA General Hospital, Beijing 100853, China
| | - H Zhang
- Senior Department of Ophthalmology, the Third Medical Center of PLA General Hospital, Beijing 100853, China
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25
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Yang Z, Li G, Zhao Y, Zhang L, Yuan X, Meng L, Liu H, Han Y, Jia L, Zhang S. Molecular Insights into the Recruiting Between UCP2 and DDX5/UBAP2L in the Metabolic Plasticity of Non-Small-Cell Lung Cancer. J Chem Inf Model 2021; 61:3978-3987. [PMID: 34308648 DOI: 10.1021/acs.jcim.1c00138] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Mitochondrial uncoupling protein 2 (UCP2) is distributed in tumor cells with a link to the support of systemic metabolic deregulation, and the downregulation of UCP2 has been unveiled as a biomarker of oncogenesis and chemoresistance in non-small-cell lung cancer (NSCLC) cells. However, the underlying mechanism of how UCP2 cooperates with other proteins in this metabolic reprogramming remains largely unsolved. We employed a combined computational and experimental strategy to explore into the recruiting of DDX5 with other proteins, and we unraveled the underlying structural mechanisms. We found that recruiting by ATP-dependent RNA helicase DDX5 (DDX5)/ubiquitin-associated protein 2-like (UBAP2L) might help UCP2 to play the pathological roles in NSCLC cells. According to the view of thermodynamics in physics, UCP2 tends to recruit DDX5 rather than UBAP2L, as shown by the ensemble-based docking, molecular dynamics simulations and molecular mechanics generalized Born surface area (MM/GBSA) approach. Cellular immunofluorescence assays further demonstrated that UCP2 associate with DDX5, and the recruiting of DDX5 with UCP2 at least partially contribute to the metabolic plasticity of NSCLCs via the AKT/mTOR pathway. Our study proposed an efficient way for detecting the protein-protein association via the experimentally validated molecular simulation. Our results shed light on the functional annotation of UCP and DDX family proteins in dysregulated metabolism, and the identification of candidate therapeutic targets for NSCLC.
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Affiliation(s)
- Zhiwei Yang
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi'an Jiaotong University, Xi'an 710049, China.,MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, China.,School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Guoyin Li
- College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou 466000, China.,State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an 710032, China
| | - Yizhen Zhao
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi'an Jiaotong University, Xi'an 710049, China
| | - Lei Zhang
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi'an Jiaotong University, Xi'an 710049, China
| | - Xiaohui Yuan
- Institute of Biomedicine, Jinan University, Guangzhou 510632, China
| | - Lingjie Meng
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, China.,Instrumental Analysis Center, Xi'an Jiao Tong University, Xi'an 710049, China
| | - Huadong Liu
- School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yong Han
- Department of Thoracic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an 710038, China
| | - Lintao Jia
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an 710032, China
| | - Shengli Zhang
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi'an Jiaotong University, Xi'an 710049, China
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Qu M, Huang Y, Tian Y, Zhang X, Jia L, Lyu B, Wang QY. [Analysis on epidemiological characteristics of multidrug-resistant Salmonella Kentucky in Beijing, 2010-2020]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:1252-1259. [PMID: 34814540 DOI: 10.3760/cma.j.cn112338-20201206-01382] [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: 06/13/2023]
Abstract
Objective: To investigate the epidemiological, drug resistance and molecular characteristics of Salmonella (S.) Kentucky strains isolated from diarrheal patients in Beijing. Methods: The drug susceptibility of 22 S. Kentucky strains isolated in Beijing during 2010-2020 was tested by using the micro broth dilution method. The multilocus sequence typing (MLST), drug resistance genes and Salmonella genomic island (SGI) identifications of the strains were performed by whole-genome sequencing (WGS).The pulsed field gel electrophoresis (PFGE) was performed to analyze the molecular epidemiological characteristics of the isolates. Results: The 22 strains were highly resistant to 8-22 kinds of antibiotics, especially to ciprofloxacin, cephalosporins and azithromycin, etc., showing a super high level of multidrug resistance and 21 strains were positive for extended-spetrum beta-lactamase (ESBL). The WGS analysis revealed that all the isolates belonged to ST198, carrying SGI1-K. The drug resistance genes tetA, sul1 and qacE were identified in all strains and Quinolone resistance-determining regions (QRDRs) showed 2 mutations in gyrA (S83F, D87 N) and 3 mutations in the parC gene (T57S, S80I, T255S). The resistance genes associated with β-lactam antibiotics (blaCTX-M-55, blaCTX-M-14b, blaTEM-141, blaTEM-206, blaTEM-209, blaTEM-214, blaTEM-1B), resistance genes associated with aminoglycosides [aac(3)-Id, aac(3)-IId, aac(6')-Iaa, aadA7, aadA17, aph(3')-Ia, aph(3'')-Ib, aph(6)-Id,rmtB] as well as floR, dfrA14, mphA and qnrS1 had significant differences in the strains of different years, which were highly consistent with the drug-resistant phenotype. Furthermore, phylogenetic analysis showed that the similarity of the 22 strains was more than 85%, and the strains were highly homologous to CIP-resistant ST198-X1 circulating in the world. In the process of spread, the drug resistance and PFGE spectrums had changed, two clusters had formed. Conclusions: The S. Kentucky strains isolated in Beijing shared high homology with the multidrug-resistant strain ST198-X1-SGI-1K isolated in the world, which has maintained a low level of spread since 2016, causing sporadic infections and clusters of diarrhea, and has serious resistances to fluoroquinolones, ESBLs and azithromycin. The surveillance for multidrug-resistant S. Kentucky should be strengthened.
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Affiliation(s)
- M Qu
- Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Beijing Research Center for Preventive Medicine, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - Y Huang
- Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Beijing Research Center for Preventive Medicine, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - Y Tian
- Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Beijing Research Center for Preventive Medicine, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - X Zhang
- Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Beijing Research Center for Preventive Medicine, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - L Jia
- Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Beijing Research Center for Preventive Medicine, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - B Lyu
- Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Beijing Research Center for Preventive Medicine, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - Q Y Wang
- Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Beijing Research Center for Preventive Medicine, Beijing Center for Disease Prevention and Control, Beijing 100013, China
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Yan ZW, Du P, Zhang W, Sun WC, Jia L, Jiang M, Liu Y, Guo HL. Expression of miR-182 in patients with fracture of tibial plateau and its regulative effects on the fracture healing. Eur Rev Med Pharmacol Sci 2021; 25:35-44. [PMID: 33506890 DOI: 10.26355/eurrev_202101_24343] [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: 11/12/2022]
Abstract
OBJECTIVE To investigate the expression of miR-182 in patients with fracture of tibial plateau (FTP) and its effects on osteoblasts and fracture healing. PATIENTS AND METHODS The patients with fracture of tibial plateau treated in our hospital and healthy subjects who received physical examination from January 2017 to January 2018 were collected. The expression of miR-182 in the serum was detected. The osteoblasts from SD rats were cultured and transfected with miR-182, anti-miR-182, miR-NC or anti-miR-NC using transfection reagent LipofectamineTM 2000. The proliferation, alkaline phosphatase (ALP) activity, calcification and osteogenic gene expression of osteoblasts were detected. The rat models with fracture of tibial plateau were divided into control group, fracture group, fracture+miR-182 group, and fracture+anti-miR-182 group. The levels of vascular endothelial growth factor (VEGF), epidermal growth factor (EGF) and transforming growth factor β (TGFβ) in serum were detected by enzyme-linked immunosorbent assay (ELISA). RESULTS Compared with the controls, the expression of miR-182 in serum was significantly elevated in patients with fracture of tibial plateau. Overexpression of miR-182 inhibited the proliferation of osteoblasts, while the knockdown of miR-182 increased the proliferation. MiR-182 could decrease the ALP activity of osteoblasts, while anti-miR-182 increased the ALP activity. Osteoblast calcification ability was significantly decreased by overexpression of miR-182. Knockdown of miR-182 increased the calcification ability of osteoblasts and the expression of osteogenic genes. MiR-182 could inhibit the expression of osteogenic genes. The levels of VEGF, EGF and TGFβ in the fracture group were higher than those in the control group, while the levels in the fracture+miR-182 group were higher than those in the fracture group. The levels of VEGF, EGF and TGFβ in the anti-miR-182 group were lower than those in the fracture group. CONCLUSIONS MiR-182 is elevated in patients with fracture of tibial plateau, which can inhibit the proliferation and differentiation of osteoblasts and affect the fracture healing. The knockdown of miR-182 might be a new method for treating fracture healing.
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Affiliation(s)
- Z-W Yan
- Department of Rehabilitation Medicine, The Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, Heilongjiang, P.R. China.
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28
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Zheng G, Guo Z, Li W, Xi W, Zuo B, Zhang R, Wen W, Yang AG, Jia L. Interaction between HLA-G and NK cell receptor KIR2DL4 orchestrates HER2-positive breast cancer resistance to trastuzumab. Signal Transduct Target Ther 2021; 6:236. [PMID: 34158475 PMCID: PMC8219715 DOI: 10.1038/s41392-021-00629-w] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 04/29/2021] [Accepted: 05/07/2021] [Indexed: 12/12/2022] Open
Abstract
Despite the successful use of the humanized monoclonal antibody trastuzumab (Herceptin) in the clinical treatment of human epidermal growth factor receptor 2 (HER2)-overexpressing breast cancer, the frequently occurring drug resistance remains to be overcome. The regulatory mechanisms of trastuzumab-elicited immune response in the tumor microenvironment remain largely uncharacterized. Here, we found that the nonclassical histocompatibility antigen HLA-G desensitizes breast cancer cells to trastuzumab by binding to the natural killer (NK) cell receptor KIR2DL4. Unless engaged by HLA-G, KIR2DL4 promotes antibody-dependent cell-mediated cytotoxicity and forms a regulatory circuit with the interferon-γ (IFN-γ) production pathway, in which IFN-γ upregulates KIR2DL4 via JAK2/STAT1 signaling, and then KIR2DL4 synergizes with the Fcγ receptor to increase IFN-γ secretion by NK cells. Trastuzumab treatment of neoplastic and NK cells leads to aberrant cytokine production characterized by excessive tumor growth factor-β (TGF-β) and IFN-γ, which subsequently reinforce HLA-G/KIR2DL4 signaling. In addition, TGF-β and IFN-γ impair the cytotoxicity of NK cells by upregulating PD-L1 on tumor cells and PD-1 on NK cells. Blockade of HLA-G/KIR2DL4 signaling improved the vulnerability of HER2-positive breast cancer to trastuzumab treatment in vivo. These findings provide novel insights into the mechanisms underlying trastuzumab resistance and demonstrate the applicability of combined HLA-G and PD-L1/PD-1 targeting in the treatment of trastuzumab-resistant breast cancer.
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Affiliation(s)
- Guoxu Zheng
- State Key Laboratory of Cancer Biology, Department of Immunology, Fourth Military Medical University, Xi'an, China
| | - Zhangyan Guo
- State Key Laboratory of Cancer Biology, Department of Immunology, Fourth Military Medical University, Xi'an, China
| | - Weimiao Li
- Department of Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Wenjin Xi
- State Key Laboratory of Cancer Biology, Department of Immunology, Fourth Military Medical University, Xi'an, China
| | - Baile Zuo
- State Key Laboratory of Cancer Biology, Department of Immunology, Fourth Military Medical University, Xi'an, China
| | - Rui Zhang
- State Key Laboratory of Cancer Biology, Department of Immunology, Fourth Military Medical University, Xi'an, China
| | - Weihong Wen
- State Key Laboratory of Cancer Biology, Department of Immunology, Fourth Military Medical University, Xi'an, China
| | - An-Gang Yang
- State Key Laboratory of Cancer Biology, Department of Immunology, Fourth Military Medical University, Xi'an, China.
| | - Lintao Jia
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, China.
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Zhang X, Yan X, Zhang R, Jia L, Zhao J. [A probe to the Empowerment and Efficiency Oriented teaching reform of molecular biology experiment]. Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi 2021; 37:569-574. [PMID: 34060452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Molecular biology theory and technology, as a frontier subject of life sciences, are developing rapidly. As the key link between theory and practice, molecular biology experimental courses play an important role in the cultivation of students' critical thinking and innovation abilities. This paper analyzed the critical issues in experimental teaching by collecting and reflecting on students' feedbacks. With a focus on the Empowerment and Efficiency Oriented Teaching, the study was aimed at improving students' hands-on and thinking ability, and raising the efficacy of education. A series of measures were taken in attempts to renew the setting of teaching content and reconstruct the classroom timing allotment. The reform of the teaching scheme not only significantly increases students' understanding and mastery of knowledge, and empowers students with stronger thinking and learning abilities, but also enhances the teaching efficacy of experimental courses and further improves students' scientific literacy.
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Affiliation(s)
- Xiao Zhang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Air Force Medical University, Xi'an 710032, China
| | - Xianchun Yan
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Air Force Medical University, Xi'an 710032, China
| | - Rui Zhang
- Department of Biochemistry and Molecular Biology, Department of Immunology, School of Basic Medical Sciences, Air Force Medical University, Xi'an 710032, China
| | - Lintao Jia
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Air Force Medical University, Xi'an 710032, China
| | - Jing Zhao
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Air Force Medical University, Xi'an 710032, China. *Corresponding author, E-mail:
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Wang H, Yi X, Guo S, Wang S, Ma J, Zhao T, Shi Q, Tian Y, Wang H, Jia L, Gao T, Li C, Guo W. The XBP1‒MARCH5‒MFN2 Axis Confers Endoplasmic Reticulum Stress Resistance by Coordinating Mitochondrial Fission and Mitophagy in Melanoma. J Invest Dermatol 2021; 141:2932-2943.e12. [PMID: 34048729 DOI: 10.1016/j.jid.2021.03.031] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 03/04/2021] [Accepted: 03/16/2021] [Indexed: 12/25/2022]
Abstract
Melanoma cells are relatively resistant to endoplasmic reticulum (ER) stress, which contributes to tumor progression under stressful conditions and renders tolerance to ER stress‒inducing therapeutic agents. Mitochondria are tightly interconnected with ER. However, whether mitochondria play a role in regulating ER stress resistance in melanoma remains elusive. In this study, we reported that the XBP1‒MARCH5‒MFN2 axis conferred ER stress resistance by coordinating mitochondrial fission and mitophagy in melanoma. Our integrative bioinformatics first revealed that the downregulation of mitochondrial genes was highly correlated with unfolded protein response activation in melanoma. Then we proved that mitochondrial fission and mitophagy were prominently induced to contribute to ER stress resistance both in vitro and in vivo by maintaining mitochondrial function. Mechanistically, the activation of IRE1α/ATF6-XBP1 branches of unfolded protein response promoted the transcription of E3 ligase MARCH5 to facilitate the ubiquitination and degradation of MFN2, which thereby triggered mitochondrial fission and mitophagy under ER stress. Together, our findings show a regulatory axis that links mitochondrial fission and mitophagy to the resistance to ER stress. Targeting mitochondrial quality control machinery can be exploited as an approach to reinforce the efficacy of ER stress‒inducing agents against cancer.
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Affiliation(s)
- Huina Wang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China; Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, China
| | - Xiuli Yi
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Sen Guo
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Sijia Wang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China; Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jinyuan Ma
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Tao Zhao
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Qiong Shi
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Yangzi Tian
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Hao Wang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Lintao Jia
- Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, China
| | - Tianwen Gao
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Chunying Li
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Weinan Guo
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China.
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Jia L, Wang S, Zhou H, Cao J, Hu Y, Zhang J. Corrigendum to "Caveolin-1 up-regulates CD147 glycosylation and the invasive capability of murine hepatocarcinoma cell lines" [Int. J. Biochem. Cell Biol. 38 (2006) 1584-1593]. Int J Biochem Cell Biol 2021; 136:105980. [PMID: 34001432 DOI: 10.1016/j.biocel.2021.105980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- L Jia
- Department of Biochemistry, Institute of Glycobiology, Dalian Medical University, 465 Zhongshan Road, Dalian, 116027, Liaoning Province, China
| | - S Wang
- Department of Biochemistry, Institute of Glycobiology, Dalian Medical University, 465 Zhongshan Road, Dalian, 116027, Liaoning Province, China
| | - H Zhou
- Department of Biochemistry, Institute of Glycobiology, Dalian Medical University, 465 Zhongshan Road, Dalian, 116027, Liaoning Province, China
| | - J Cao
- Department of Biochemistry, Institute of Glycobiology, Dalian Medical University, 465 Zhongshan Road, Dalian, 116027, Liaoning Province, China
| | - Y Hu
- Department of Biochemistry, Institute of Glycobiology, Dalian Medical University, 465 Zhongshan Road, Dalian, 116027, Liaoning Province, China
| | - J Zhang
- Department of Biochemistry, Institute of Glycobiology, Dalian Medical University, 465 Zhongshan Road, Dalian, 116027, Liaoning Province, China.
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Xiong Y, Feng Y, Zhao J, Lei J, Qiao T, Zhou Y, Lu Q, Jiang T, Jia L, Han Y. TFAP2A potentiates lung adenocarcinoma metastasis by a novel miR-16 family/TFAP2A/PSG9/TGF-β signaling pathway. Cell Death Dis 2021; 12:352. [PMID: 33824285 PMCID: PMC8024312 DOI: 10.1038/s41419-021-03606-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [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: 12/30/2020] [Revised: 03/09/2021] [Accepted: 03/10/2021] [Indexed: 12/14/2022]
Abstract
Transcription factor AP-2α (TFAP2A) was previously regarded as a critical regulator during embryonic development, and its mediation in carcinogenesis has received intensive attention recently. However, its role in lung adenocarcinoma (LUAD) has not been fully elucidated. Here, we tried to investigate TFAP2A expression profiling, clinical significance, biological function and molecular underpinnings in LUAD. We proved LUAD possessed universal TFAP2A high expression, indicating a pervasively poorer prognosis in multiple independent datasets. Then we found TFAP2A was not indispensable for LUAD proliferation, and exogenous overexpression even caused repression. However, we found TFAP2A could potently promote LUAD metastasis possibly by triggering epithelial–mesenchymal transition (EMT) in vitro and in vivo. Furthermore, we demonstrated TFAP2A could transactivate Pregnancy-specific glycoprotein 9 (PSG9) to enhance transforming growth factor β (TGF-β)-triggering EMT in LUAD. Meanwhile, we discovered suppressed post-transcriptional silencing of miR-16 family upon TFAP2A partly contributed to TFAP2A upregulation in LUAD. In clinical specimens, we also validated cancer-regulating effect of miR-16 family/TFAP2A/PSG9 axis, especially for lymph node metastasis of LUAD. In conclusion, we demonstrated that TFAP2A could pivotally facilitate LUAD progression, possibly through a novel pro-metastasis signaling pathway (miR-16 family/TFAP2A/PSG9/ TGF-β).
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Affiliation(s)
- Yanlu Xiong
- Department of Thoracic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Yangbo Feng
- Department of Thoracic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Jinbo Zhao
- Department of Thoracic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Jie Lei
- Department of Thoracic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Tianyun Qiao
- Department of Thoracic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Yongsheng Zhou
- Department of Thoracic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Qiang Lu
- Department of Thoracic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Tao Jiang
- Department of Thoracic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China.
| | - Lintao Jia
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, China.
| | - Yong Han
- Department of Thoracic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China. .,Department of Thoracic Surgery, Air Force Medical Center, PLA, Beijing, China.
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Zhang Y, Gao WJ, Wang Y, Wang XL, Cui SJ, Jia L, Wang QY, Li LM. [Epidemiological characteristics of COVID-19 cases in outbreak in Xinfadi market in Beijing]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:1336-1340. [PMID: 33745254 DOI: 10.3760/cma.j.cn112338-20201222-01428] [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 epidemiological characteristics of COVID-19 cases, including asymptomatic cases and symptomatic cases, in the outbreak in Xinfadi market in Beijing. Methods: Data and epidemiological survey reports of COVID-19 cases in Xinfadi market in Beijing were extracted from China's Infectious Disease Information System. Epidemiological characteristics of symptomatic cases and asymptomatic cases were analyzed and compared by using software SPSS 19.0. Results: From June 11 to July 10, 2020, a total of 368 laboratory-confirmed COVID-19 cases reported in the outbreak in Xinfadi market, in which, 335 (91.03%) were symptomatic and 33 (8.97%) were asymptomatic. The cases were distributed in 11 districts, and most cases (252/368, 68.48%) were reported in Fengtai district. The incidence curve of the cases showed a typical outbreak pattern, the case number peaked on 13 June. The median age of the cases were 43 years (QR: 31-51). The asymptomatic cases (M=32, QR: 29-46) were younger than the symptomatic cases (M=43, QR: 31-52), the difference was significant (Z=2.416, P=0.016). The ratio of male to female was 1.26∶1. Most cases (236/368, 64.13%) were engaged in catering service and public place service. About 73.91% of the cases (272/368) had direct exposures in Xinfadi market. About 54.08%(199/368) of cases were detected through nucleic acid testing and screening. Mild and moderate cases accounted for 99.10% (332/335) of the total cases, and no death occurred. Conclusion: The COVID-19 cases in the outbreak in Xinfadi market were mainly engaged in catering service and public place service. The asymptomatic cases were younger than the symptomatic cases.
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Affiliation(s)
- Y Zhang
- Institute for Infectious Disease and Endemic Disease Prevention and Control, Beijing Center for Disease Prevention and Control & Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - W J Gao
- Department of Epidemiology and Biostatistics, School of Public Heatlh, Peking University, Beijing 100191,China
| | - Y Wang
- Institute for Infectious Disease and Endemic Disease Prevention and Control, Beijing Center for Disease Prevention and Control & Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - X L Wang
- Institute for Infectious Disease and Endemic Disease Prevention and Control, Beijing Center for Disease Prevention and Control & Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - S J Cui
- Institute for Infectious Disease and Endemic Disease Prevention and Control, Beijing Center for Disease Prevention and Control & Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - L Jia
- Institute for Infectious Disease and Endemic Disease Prevention and Control, Beijing Center for Disease Prevention and Control & Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - Q Y Wang
- Institute for Infectious Disease and Endemic Disease Prevention and Control, Beijing Center for Disease Prevention and Control & Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - L M Li
- Department of Epidemiology and Biostatistics, School of Public Heatlh, Peking University, Beijing 100191,China
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Zhao J, Li H, Zhao S, Wang E, Zhu J, Feng D, Zhu Y, Dou W, Fan Q, Hu J, Jia L, Liu L. Epigenetic silencing of miR-144/451a cluster contributes to HCC progression via paracrine HGF/MIF-mediated TAM remodeling. Mol Cancer 2021; 20:46. [PMID: 33658044 PMCID: PMC7927270 DOI: 10.1186/s12943-021-01343-5] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 02/23/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND & AIMS Hepatocellular carcinoma (HCC) is among the malignancies with the highest mortality. The key regulators and their interactive network in HCC pathogenesis remain unclear. Along with genetic mutations, aberrant epigenetic paradigms, including deregulated microRNAs (miRNAs), exert profound impacts on hepatocyte transformation and tumor microenvironment remodeling; however, the underlying mechanisms are largely uncharacterized. METHODS We performed RNA sequencing on HCC specimens and bioinformatic analyses to identify tumor-associated miRNAs. The miRNA functional targets and their effects on tumor-infiltrating immune cells were investigated. The upstream events, particularly the epigenetic mechanisms responsible for miRNA deregulation in HCC, were explored. RESULTS The miR-144/miR-451a cluster was downregulated in HCC and predicted a better HCC patient prognosis. These miRNAs promoted macrophage M1 polarization and antitumor activity by targeting hepatocyte growth factor (HGF) and macrophage migration inhibitory factor (MIF). The miR-144/miR-451a cluster and EZH2, the catalytic subunit of polycomb repressive complex (PRC2), formed a feedback circuit in which miR-144 targeted EZH2 and PRC2 epigenetically repressed the miRNA genes via histone H3K27 methylation of the promoter. The miRNA cluster was coordinately silenced by distal enhancer hypermethylation, disrupting chromatin loop formation and enhancer-promoter interactions. Clinical examinations indicated that methylation of this chromatin region is a potential HCC biomarker. CONCLUSIONS Our study revealed novel mechanisms underlying miR-144/miR-451a cluster deregulation and the crosstalk between malignant cells and tumor-associated macrophages (TAMs) in HCC, providing new insights into HCC pathogenesis and diagnostic strategies.
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Affiliation(s)
- Junlong Zhao
- State Key Laboratory of Cancer Biology, Department of Medical Genetics and Development Biology, Fourth Military Medical University, Xi'an, 710032, China
| | - Huichen Li
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, School of Basic Medicine, Fourth Military Medical University, No.169 Changlexi Road, Xi'an, 710032, China
| | - Shoujie Zhao
- Department of General Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China
| | - Enxin Wang
- Department of Gastroenterology, Tangdu Hospital of the Fourth Military Medical University, No.569 Xinsi Road, Xi'an, 710038, China
| | - Jun Zhu
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, School of Basic Medicine, Fourth Military Medical University, No.169 Changlexi Road, Xi'an, 710032, China
| | - Dayun Feng
- Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China
| | - Yejing Zhu
- Department of General Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China
| | - Weijia Dou
- Department of Gastroenterology, Tangdu Hospital of the Fourth Military Medical University, No.569 Xinsi Road, Xi'an, 710038, China
| | - Qingling Fan
- Department of Gastroenterology, Tangdu Hospital of the Fourth Military Medical University, No.569 Xinsi Road, Xi'an, 710038, China
| | - Jie Hu
- Department of Gastroenterology, Tangdu Hospital of the Fourth Military Medical University, No.569 Xinsi Road, Xi'an, 710038, China
| | - Lintao Jia
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, School of Basic Medicine, Fourth Military Medical University, No.169 Changlexi Road, Xi'an, 710032, China.
| | - Lei Liu
- Department of Gastroenterology, Tangdu Hospital of the Fourth Military Medical University, No.569 Xinsi Road, Xi'an, 710038, China. .,Department of Cell Biology, Fourth Military Medical University, No.169 Changlexi Road, Xi'an, 710032, China.
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Chao M, Liu N, Sun Z, Jiang Y, Jiang T, Xv M, Jia L, Tu Y, Wang L. TGF-β Signaling Promotes Glioma Progression Through Stabilizing Sox9. Front Immunol 2021; 11:592080. [PMID: 33613515 PMCID: PMC7886799 DOI: 10.3389/fimmu.2020.592080] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 12/21/2020] [Indexed: 01/01/2023] Open
Abstract
Gliomas are brain and spinal cord malignancies characterized by high malignancy, high recurrence and poor prognosis, the underlying mechanisms of which remain largely elusive. Here, we found that the Sry-related high mobility group box (Sox) family transcription factor, Sox9, was upregulated and correlated with poor prognosis of clinical gliomas. Sox9 promotes migration and invasion of glioma cells and in vivo development of xenograft tumors from inoculated glioma cells. Sox9 functions downstream of the transforming growth factor-β (TGF-β) pathway, in which TGF-β signaling prevent proteasomal degradation of the Sox9 protein in glioma cells. These findings provide novel insight into the wide interplay between TGF-β signaling and oncogenic transcription factors, and have implications for targeted therapy and prognostic assessment of gliomas.
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Affiliation(s)
- Min Chao
- Departments of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Nan Liu
- Departments of Experimental Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Zhichuan Sun
- Departments of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Yongli Jiang
- Departments of Neurology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Tongtong Jiang
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, China
| | - Meng Xv
- Departments of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Lintao Jia
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, China
| | - Yanyang Tu
- Departments of Experimental Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Liang Wang
- Departments of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
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Zhu H, Li J, Li Y, Zheng Z, Guan H, Wang H, Tao K, Liu J, Wang Y, Zhang W, Li C, Li J, Jia L, Bai W, Hu D. Glucocorticoid counteracts cellular mechanoresponses by LINC01569-dependent glucocorticoid receptor-mediated mRNA decay. Sci Adv 2021; 7:7/9/eabd9923. [PMID: 33627425 PMCID: PMC7904261 DOI: 10.1126/sciadv.abd9923] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 01/08/2021] [Indexed: 05/05/2023]
Abstract
Mechanical stimuli on cells and mechanotransduction are essential in many biological and pathological processes. Glucocorticoid is an important hormone, roles, and mechanisms of which in cellular mechanotransduction remain unknown. Here, we report that glucocorticoid counteracted cellular mechanoresponses dependently on a novel long noncoding RNA (lncRNA), LINC01569 Further, LINC01569 mediated glucocorticoid effects on mechanotransduction by destabilizing messenger RNA (mRNA) of mechanosensors including early growth response protein 1 (EGR1), Cbp/P300-interacting transactivator 2 (CITED2), and bone morphogenic protein 7 (BMP7) in glucocorticoid receptor-mediated mRNA decay (GMD) manner. Mechanistically, LINC01569 directly bound to the GMD factor Y-box-binding protein 1 (YBX1). Then, the LINC01569-YBX1 complex was guided to the mRNAs of EGR1, CITED2, and BMP7 through specific LINC01569-mRNA interaction, thereby contributing to the successful assembly of GMD complex and triggering GMD. Our results uncovered roles of glucocorticoid in cellular mechanotransduction and novel lncRNA-dependent GMD machinery and provided potential strategy for early intervention in mechanical disorder-associated diseases.
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Affiliation(s)
- Huayu Zhu
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Jun Li
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Yize Li
- Department of Clinical Oncology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Zhao Zheng
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Hao Guan
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Hongtao Wang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Ke Tao
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Jiaqi Liu
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Yunchuan Wang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Wanfu Zhang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Chao Li
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Jie Li
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Lintao Jia
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, Shaanxi 710032, China.
| | - Wendong Bai
- Department of Endocrinology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China.
- Department of Clinical Laboratory Center, Xinjiang Command General Hospital of Chinese People's Liberation Army, Urumqi, Xinjiang 830000, China
| | - Dahai Hu
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China.
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Sun J, Xiong Y, Jiang K, Xin B, Jiang T, Wei R, Zou Y, Tan H, Jiang T, Yang A, Jia L, Wang L. Hypoxia-sensitive long noncoding RNA CASC15 promotes lung tumorigenesis by regulating the SOX4/β-catenin axis. J Exp Clin Cancer Res 2021; 40:12. [PMID: 33407675 PMCID: PMC7789733 DOI: 10.1186/s13046-020-01806-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 12/09/2020] [Indexed: 02/07/2023]
Abstract
Background Accumulating evidence has demonstrated that long non-coding RNAs (lncRNAs) are involved in the hypoxia-related cancer process and play pivotal roles in enabling malignant cells to survive under hypoxic stress. However, the molecular crosstalk between lncRNAs and hypoxia signaling cascades in non-small cell lung cancer (NSCLC) remains largely elusive. Methods Firstly, we identified differentially expressed lncRNA cancer susceptibility candidate 15 (CASC15) as associated with NSCLC based on bioinformatic data. The clinical significance of CASC15 in lung cancer was investigated by Kaplan-Meier survival analysis. Then, we modulated CASC15 expression in NSCLC cell lines by RNAi. CCK-8 and transwell assays were carried out to examine the effects of CASC15 on proliferation and migration of NSCLC cells. Upstream activator and downstream targets of CASC15 were validated by luciferase reporter assay, qRT-PCR, Western blotting, and chromatin immunoprecipitation (ChIP). Lastly, RNA in situ hybridization (RNA-ISH) and immunohistochemistry (IHC) were performed to confirm the genetic relationships between CASC15 and related genes in clinical samples. Results CASC15 was highly expressed in NSCLC tissues and closely associated with poor prognosis. Loss-of-function analysis demonstrated that CASC15 was essential for NSCLC cell migration and growth. Mechanistic study revealed that CASC15 was transcriptionally activated by hypoxia signaling in NSCLC cells. Further analysis showed that hypoxia-induced CASC15 transactivation was mainly dependent on hypoxia-inducible factor 1α (HIF-1α) and hypoxia response elements (HREs) located in CASC15 promoter. CASC15 promotes the expression of its chromosomally nearby gene, SOX4. Then SOX4 functions to stabilize β-catenin protein, thereby enhancing the proliferation and migration of NSCLC cells. HIF-1α/CASC15/SOX4/β-catenin pathway was activated in a substantial subset of NSCLC patients. Conclusions HIF-1α/CASC15/SOX4/β-catenin axis plays an essential role in the development and progression of NSCLC. The present work provides new evidence that lncRNA CASC15 holds great promise to be used as novel biomarkers for NSCLC. Blocking the HIF-1α/CASC15/SOX4/β-catenin axis can serve as a potential therapeutic strategy for treating NSCLC.
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Affiliation(s)
- Jianyong Sun
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China.,Department of Thoracic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, Shaanxi, China
| | - Yanlu Xiong
- Department of Thoracic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, Shaanxi, China
| | - Kuo Jiang
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, 710054, Shaanxi, China
| | - Bo Xin
- Department of Oncology, The 960th Hospital of PLA, Tai'an, 271000, Shandong, China
| | - Tongtong Jiang
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Renji Wei
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Yuankang Zou
- The Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Department of Occupational and Environmental Health, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Hong Tan
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Tao Jiang
- Department of Thoracic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, Shaanxi, China
| | - Angang Yang
- Department of Immunology, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Lintao Jia
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China.
| | - Lei Wang
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China.
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Yang Z, Zhao Y, Hao D, Wang H, Li S, Jia L, Yuan X, Zhang L, Meng L, Zhang S. Computational identification of potential chemoprophylactic agents according to dynamic behavior of peroxisome proliferator-activated receptor gamma. RSC Adv 2020; 11:147-159. [PMID: 35423024 PMCID: PMC8690233 DOI: 10.1039/d0ra09059j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 12/12/2020] [Indexed: 12/14/2022] Open
Abstract
Peroxisome proliferator-activated receptor gamma (PPARγ) is an attractive target for chemoprevention of lung carcinoma, however its highly dynamic nature has plagued drug development for decades, with difficulties in receptor modeling for structure-based design. In this work, an integrated receptor-based virtual screening (VS) strategy was applied to identify PPARγ agonists as chemoprophylactic agents by using extensive docking and conformational sampling methods. Our results showed that the conformational plasticity of PPARγ, especially the H2 & S245 loop, H2' & Ω loop and AF-2 surface, is markedly affected by binding of full/partial agonists. To fully take the dynamic behavior of PPARγ into account, the VS approach effectively sorts out five commercial agents with reported antineoplastic properties. Among them, ZINC03775146 (gusperimus) and ZINC14087743 (miltefosine) might be novel PPARγ agonists with the potential for chemoprophylaxis, that simultaneously take part in a flexible switch of the AF-2 surface and state change of the Ω loop. Furthermore, the dynamic structural coupling between the H2 & S245 and H2' & Ω loops offers enticing hope for PPARγ-targeted therapeutics, by blocking kinase accessibility to PPARγ. These results might aid the development of chemopreventive drugs, and the integrated VS strategy could be conducive to drug design for highly flexible biomacromolecules.
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Affiliation(s)
- Zhiwei Yang
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi'an Jiaotong University Xi'an 710049 China +86-29-82660915 +86-29-82660915
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Chemistry, Xi'an Jiaotong University Xi'an 710049 China
- School of Life Science and Technology, Xi'an Jiaotong University Xi'an 710049 China
| | - Yizhen Zhao
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi'an Jiaotong University Xi'an 710049 China +86-29-82660915 +86-29-82660915
| | - Dongxiao Hao
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi'an Jiaotong University Xi'an 710049 China +86-29-82660915 +86-29-82660915
| | - He Wang
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi'an Jiaotong University Xi'an 710049 China +86-29-82660915 +86-29-82660915
| | - Shengqing Li
- Department of Pulmonary and Critical Care Medicine, Huashan Hospital, Fudan University Shanghai 200041 China
| | - Lintao Jia
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Air Force Medical University Xi'an 710032 China
| | - Xiaohui Yuan
- Institute of Biomedicine, Jinan University Guangzhou 510632 China
| | - Lei Zhang
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi'an Jiaotong University Xi'an 710049 China +86-29-82660915 +86-29-82660915
| | - Lingjie Meng
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Chemistry, Xi'an Jiaotong University Xi'an 710049 China
- Instrumental Analysis Center, Xi'an Jiao Tong University Xi'an 710049 China
| | - Shengli Zhang
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi'an Jiaotong University Xi'an 710049 China +86-29-82660915 +86-29-82660915
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Wang X, Li Z, Du Y, Jia L, Fan J, Guo R, Ma X, Nie S, Wei Y. Association of C1q/TNF-related protein-9 (CTRP9) level with obstructive sleep apnea in patients with coronary artery disease. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Obstructive sleep apnea (OSA) is closely related to the incidence and progression of coronary artery disease (CAD), but the mechanisms linking OSA and CAD are unclear. C1q/TNF-related protein-9 (CTRP9) is a novel adipokine that protects the heart against ischemic injury and ameliorates cardiac remodeling.
Purpose
We aimed to ascertain the clinical relevance of CTRP9 with OSA prevalence in patients with CAD.
Methods
From August 2016 to March 2019, consecutive eligible patients with CAD (n=154; angina pectoris, n=88; acute myocardial infarction [AMI], n=66) underwent cardiorespiratory polygraphy during hospitalization. OSA was defined as an apnea-hypopnea index (AHI) ≥15 events h–1. Plasma CTRP9 concentrations were measured by ELISA method.
Results
OSA was present in 89 patients (57.8%). CTRP9 levels were significantly decreased in the OSA group than in the non-OSA group (4.7 [4.1–5.2] ng/mL vs. 4.9 [4.4–6.0] ng/mL, P=0.003). The difference between groups was only observed in patients with AMI (3.0 [2.3–4.9] vs. 4.5 [3.2–7.9], P=0.009), but not in patients with AP (5.0 [4.7–5.3] ng/mL vs. 5.1 [4.7–5.9] ng/mL, P=0.571) (Figure 1). Correlation analysis showed that CTRP9 levels were negatively correlated with AHI (r=−0.238, P=0.003) and oxygen desaturation index (r=−0.234, P=0.004), and positively correlated with left ventricular ejection fraction (r=0.251, P=0.004) in all subjects. Multivariate analysis showed that male gender (OR 3.099, 95% CI 1.029–9.330, P=0.044), body mass index (OR 1.148, 95% CI 1.040–1.268, P=0.006), and CTRP9 levels (OR 0.726, 95% CI 0.592–0.890, P=0.002) were independently associated with the prevalence of OSA.
Conclusions
Plasma CTRP9 levels were independently related to the prevalence of OSA in patients with CAD, suggesting that CTRP9 might play a role in the pathogenesis of CAD exacerbated by OSA.
Figure 1. CTRP9 levels in OSA and non-OAS groups
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): National Natural Science Foundation of China
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Affiliation(s)
- X Wang
- Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Z Li
- Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Y Du
- Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - L Jia
- Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - J Fan
- Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - R Guo
- Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - X Ma
- Thomas Jefferson University, Philadelphia, United States of America
| | - S Nie
- Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Y Wei
- Beijing Anzhen Hospital, Capital Medical University, Beijing, China
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Liu Y, Li T, Deng Y, Liu S, Zhang D, Li H, Wang X, Jia L, Han J, Bei Z, Li L, Li J. Stability of SARS-CoV-2 on environmental surfaces and in human excreta. J Hosp Infect 2020; 107:105-107. [PMID: 33137445 PMCID: PMC7603996 DOI: 10.1016/j.jhin.2020.10.021] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 10/19/2020] [Accepted: 10/21/2020] [Indexed: 01/22/2023]
Affiliation(s)
- Y Liu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, People's Republic of China
| | - T Li
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, People's Republic of China
| | - Y Deng
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, People's Republic of China
| | - S Liu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, People's Republic of China
| | - D Zhang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, People's Republic of China
| | - H Li
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, People's Republic of China
| | - X Wang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, People's Republic of China
| | - L Jia
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, People's Republic of China
| | - J Han
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, People's Republic of China
| | - Z Bei
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, People's Republic of China
| | - L Li
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, People's Republic of China.
| | - J Li
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, People's Republic of China.
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Dent R, Cortes J, Pusztai L, McArthur H, Kuemmel S, Bergh J, Denkert C, Park Y, Hui R, Harbeck N, Takahashi M, Foukakis T, Fasching P, Cardoso F, Jia L, Jensen E, Karantza V, Aktan G, O'Shaughnessy J, Schmid P. 1O KEYNOTE-522 Asian subgroup: Phase III study of neoadjuvant pembrolizumab (pembro) vs placebo (pbo) + chemotherapy (chemo) followed by adjuvant pembro vs pbo for early triple-negative breast cancer (TNBC). Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Li J, Yang Y, Liang ZC, Gao ZY, Jia L, Liu BW, Chen LJ, Wang QY. [Analysis of pathogenic composition and clinical characteristics of viral acute gastroenteritis in children under five years old in Beijing]. Zhonghua Yu Fang Yi Xue Za Zhi 2020; 54:1104-1110. [PMID: 33115197 DOI: 10.3760/cma.j.cn112150-20191129-00892] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To understand the epidemiological characteristics and clinical features of rotavirus-, norovirus-, adenovirus-and astrovirus-associ ated acute gastroenteritis in children under 5 years old in Beijing from Octorber, 2015 to March, 2017. Methods: In the intestinal clinic of 6 hospitals in 6 districts of Beijing, information and stool samples of the first 30 patients with acute gastroenteritis who are under the age of 5 years are collected monthly.Rotavirus, norovirus, adenovirus and astrovirus are identified by PCR.Descriptive epidemiological method was used to describe the epidemiological characteristics of diarrhea caused by rotavirus, norovirus, adenovirus and astrovirus in Beijing. One-way analysis of variance was used to analyze the Vesikari clinical severity score of of acute gastroenteritis caused by each virus. Unconditional logistic regression analysis was used to analysis the associated factors of clinical features. Results: Of the 2 052 samples, 709 (34.6%) were non-mixed infections: the positive rate of rotavirus, norovirus, adenovirus and astrovirus were 20.0%, 7.5%, 4.2% and 2.9%, respectively. A total of 135 cases (6.6%) were mixed infection. The mean and standard deviation of Vesikari clinical severity score was 8.0±3.1 for rotavirus associated acute gastroenteritis, which was significantly higher than norovirus (6.4±2.4, P<0.001), adenovirus (6.2±2.1, P<0.001) and astrovirus (6.1±2.0, P<0.001). The comparison of clinical features showed that compared with astrovirus, the children under 5 years old infected with rotavirus were more likely to have a diarrhea ≥5 days (OR=3.334), have vomiting ≥3 times within one day (OR=8.788), have vomiting≥1 day (OR=3.963), have a Vesikari clinical severity score ≥11 severe cases (OR=13.194). Norovirus infected cases were prone to have vomiting≥3 times in 1 day (OR=5.710).Adenovirus infected cases were prone to have a diarrhea≥5 days (OR=2.616). When using rotavirus as a reference, children under 5 years of age were less likely to develop fever≥38.4 ℃ after infection with norovirus (OR=0.397) or adenovirus (OR=0.280). Conclusions: The results of this study showed that the characteristics of acute gastroenteritis caused by different viruses are different. The clinical symptoms caused by rotavirus are more serious. Children under 24 months of age are at high risk of rotavirus infection. Effective preventive measures such as vaccination should be taken as soon as possible.
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Affiliation(s)
- J Li
- Institute for HIV/AIDS and STD Prevention and Control, Beijing Center for Disease Prevention and Control, Research Center for Preventive Medicine of Beijing, Beijing 100013, China
| | - Y Yang
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Research Center for Preventive Medicine of Beijing, Beijing 100013, China
| | - Z C Liang
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Research Center for Preventive Medicine of Beijing, Beijing 100013, China
| | - Z Y Gao
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Research Center for Preventive Medicine of Beijing, Beijing 100013, China
| | - L Jia
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Research Center for Preventive Medicine of Beijing, Beijing 100013, China
| | - B W Liu
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Research Center for Preventive Medicine of Beijing, Beijing 100013, China
| | - L J Chen
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Research Center for Preventive Medicine of Beijing, Beijing 100013, China
| | - Q Y Wang
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Research Center for Preventive Medicine of Beijing, Beijing 100013, China
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Cao Y, Yang X, Lai YM, Jia L, Diao XT, Zhuang Q, Lin DM. Genetic investigation of nodal melanocytic nevi in cases of giant congenital melanocytic nevus. Histol Histopathol 2020; 35:1151-1157. [PMID: 32729623 DOI: 10.14670/hh-18-243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Nodal melanocytic nevi are common incidental findings in lymph nodes that have been removed during sentinel lymph node biopsy for melanoma. They can also occur in the local lymph nodes of the giant congenital nevus (GCN), but very little is known regarding nodal melanocytic nevi in the giant congenital nevus, especially at the genetic level. There are two theories that explain the possible pathogenesis of nodal melanocytic nevi, mechanical transport and arrested migration during embryogenesis. However, there have been few tests of these two theories at the molecular biology level until now. We used whole-exon sequencing to test these two theories at the gene level for the first time. In clonal evolution analysis of patient 1, whose tumor mutation burden (TMB) value was relatively stable, showed that the GCN and nodal nevus had the same initial origin and then diverged into two branches as a result of gene mutations. In contrast, analysis indicated that in the other patient, whose TMB value declined from 68.02/Mb in a GCN to 17.55/Mb in associated nodal nevi, these two samples were from different origins at the beginning, each with its own gene mutation. These results are consistent with the two respective theories at the molecular biological level. We provided the first tests of the two theories of pathogenesis of nodal melanocytic nevi at the gene level, and these findings may provide some clues for further study. In addition, not all nodal nevi should be treated as lymph node metastasis in clinical diagnosis, and we should make a comprehensive assessment and judgment of nodal melanocytic nevi based on morphology, immunological characteristics and fluorescence in situ hybridization (FISH) tests.
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Affiliation(s)
- Y Cao
- Department of Phatology, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, PR China
| | - X Yang
- Department of Pathology, Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing, China
| | - Y-M Lai
- Department of Pathology, Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing, China
| | - L Jia
- Department of Pathology, Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing, China
| | - X-T Diao
- Department of Pathology, Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing, China
| | - Q Zhuang
- Department of Pathology, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, PR China
| | - D-M Lin
- Department of Pathology, Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing, China.
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Cao Y, Li ZW, Yang X, Lai YM, Zhuang Q, Jia L, Lin DM. [Genetic changes and biological potential of proliferative nodule in congenital pigmented nevus]. Zhonghua Bing Li Xue Za Zhi 2020; 49:458-463. [PMID: 32392930 DOI: 10.3760/cma.j.cn112151-20190905-00485] [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 study the genetic changes and biological potential of proliferative nodule in congenital melanocytic nevus. Methods: Whole-exome sequencing was carried out using the technique of next-generation sequencing (NGS) in order to detect the genomic alterations of two cases of proliferative nodules (PN) in congenital melanocytic nevi (CMN). Twelve cases of CMN and ten cases of malignant melanoma were used as benign and malignant controls, respectively. Mutated genes that possessed statistically significant difference between benign and malignant controls were listed, according to what benign and malignant statuses were classified and clustered. The heatmaps of clustering analyses were depicted using heatmap package. Fluorescence in situ hybridization (FISH) was also used to validate the above results. Results: Eighty-six common somatic gene mutations were detected in two samples of PN. Compared with CMN, PN had 52 more mutated genes. Furthermore, 22 of these 52 mutated genes were also detected in malignant melanoma samples. Two cases of PN fell between benign CMN and malignant melanoma in germline mutation clustering. Both cases of PN were positive in the FISH tests. Conclusions: The genetic changes of PN partially overlap with those of CMN and malignant melanoma. Therefore, although most of the PN manifest as a benign lesion clinically, it may have certain malignant potential at the genetic level, and warrant long-term monitoring and follow-up.
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Affiliation(s)
- Y Cao
- Department of Pathology, Plastic Surgery Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100144, China
| | - Z W Li
- Department of Pathology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - X Yang
- Department of Pathology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Y M Lai
- Department of Pathology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Q Zhuang
- Department of Pathology, Plastic Surgery Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100144, China
| | - L Jia
- Department of Pathology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - D M Lin
- Department of Pathology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing 100142, China
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Wang S, Li H, Kou Z, Ren F, Jin Y, Yang L, Dong X, Yang M, Zhao J, Liu H, Dong N, Jia L, Chen X, Zhou Y, Qiu S, Hao R, Song H. Highly sensitive and specific detection of hepatitis B virus DNA and drug resistance mutations utilizing the PCR-based CRISPR-Cas13a system. Clin Microbiol Infect 2020; 27:443-450. [PMID: 32360447 DOI: 10.1016/j.cmi.2020.04.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 04/17/2020] [Accepted: 04/19/2020] [Indexed: 02/07/2023]
Abstract
OBJECTIVES Undetectable or low-level hepatitis B virus (HBV) DNA and drug resistance mutations in patients may increase the risk of HBV transmission or cause active viral replication and other clinical problems. Here, we established a highly sensitive and practical method for HBV and drug resistance detection using a polymerase chain reaction (PCR) -based CRISPR-Cas13a detection system (referred to as PCR-CRISPR) and evaluated its detection capability using clinical samples. METHODS Specific CRISPR RNAs (crRNAs) are designed for HBV DNA detection and YMDD (tyrosine-methionine-aspartate-aspartate) variant identification. The HBV DNA was detected in 312 serum samples for HBV diagnosis using quantification PCR (qPCR) and PCR-CRISPR. Additionally, 424 serum samples for YMDD testing were detected by qPCR, direct sequencing, and our assay. RESULTS Using PCR-CRISPR, one copy per test of HBV DNA was detected with HBV-1 crRNA in 15 min after PCR amplification. Consistent results with qPCR were observed for 302 samples, while the remaining 10 samples with low-level HBV DNA were detectable by PCR-CRISPR and droplet digital PCR but not by qPCR. PCR-CRISPR diagnosed all 412 drug-resistant samples detected by the YMDD detection qPCR kit and direct sequencing, as well as the other 12 drug-resistant samples with low-level HBV DNA undetectable by qPCR and direct sequencing. CONCLUSIONS We developed a novel PCR-CRISPR method for highly sensitive and specific detection of HBV DNA and drug resistance mutations. One copy per test for HBV DNA and YMDD drug resistance mutations could be detected. This method has wide application prospects for the early detection of HBV infection, drug resistance monitoring and treatment guidance.
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Affiliation(s)
- S Wang
- Graduate School of the Academy of Military Medical Sciences, Academy of Military Sciences, Beijing, China; Chinese PLA Center for Disease Control and Prevention, Beijing, China
| | - H Li
- Graduate School of the Academy of Military Medical Sciences, Academy of Military Sciences, Beijing, China; State Key Laboratory of Pathogens and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Z Kou
- Graduate School of the Academy of Military Medical Sciences, Academy of Military Sciences, Beijing, China; State Key Laboratory of Pathogens and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - F Ren
- Beijing Artificial Liver Treatment and Training Centre, Beijing You An Hospital, Affiliated Hospital of Capital Medical University, Beijing, China
| | - Y Jin
- Beijing Artificial Liver Treatment and Training Centre, Beijing You An Hospital, Affiliated Hospital of Capital Medical University, Beijing, China
| | - L Yang
- Graduate School of the Academy of Military Medical Sciences, Academy of Military Sciences, Beijing, China; Chinese PLA Center for Disease Control and Prevention, Beijing, China
| | - X Dong
- Graduate School of the Academy of Military Medical Sciences, Academy of Military Sciences, Beijing, China; State Key Laboratory of Pathogens and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - M Yang
- Chinese PLA Center for Disease Control and Prevention, Beijing, China
| | - J Zhao
- Graduate School of the Academy of Military Medical Sciences, Academy of Military Sciences, Beijing, China; Chinese PLA Center for Disease Control and Prevention, Beijing, China
| | - H Liu
- Graduate School of the Academy of Military Medical Sciences, Academy of Military Sciences, Beijing, China; Chinese PLA Center for Disease Control and Prevention, Beijing, China
| | - N Dong
- Graduate School of the Academy of Military Medical Sciences, Academy of Military Sciences, Beijing, China; Chinese PLA Center for Disease Control and Prevention, Beijing, China
| | - L Jia
- Graduate School of the Academy of Military Medical Sciences, Academy of Military Sciences, Beijing, China; Chinese PLA Center for Disease Control and Prevention, Beijing, China
| | - X Chen
- Beijing Artificial Liver Treatment and Training Centre, Beijing You An Hospital, Affiliated Hospital of Capital Medical University, Beijing, China
| | - Y Zhou
- Graduate School of the Academy of Military Medical Sciences, Academy of Military Sciences, Beijing, China; State Key Laboratory of Pathogens and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - S Qiu
- Graduate School of the Academy of Military Medical Sciences, Academy of Military Sciences, Beijing, China; Chinese PLA Center for Disease Control and Prevention, Beijing, China.
| | - R Hao
- Graduate School of the Academy of Military Medical Sciences, Academy of Military Sciences, Beijing, China; Chinese PLA Center for Disease Control and Prevention, Beijing, China.
| | - H Song
- Graduate School of the Academy of Military Medical Sciences, Academy of Military Sciences, Beijing, China; Chinese PLA Center for Disease Control and Prevention, Beijing, China.
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46
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Long W, Wu J, Shen G, Zhang H, Liu H, Xu Y, Gu J, Jia L, Lin Y, Xia Q. Estrogen-related receptor participates in regulating glycolysis and influences embryonic development in silkworm Bombyx mori. Insect Mol Biol 2020; 29:160-169. [PMID: 31566836 DOI: 10.1111/imb.12619] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 08/04/2019] [Accepted: 09/03/2019] [Indexed: 06/10/2023]
Abstract
Estrogen-related receptors (ERRs) play indispensable roles in development, energy metabolism, and cancers and are metabolic switches in Drosophila. However, the mechanism underlying their metabolic role is unknown in insects. This study analysed the expression profiles of Bombyx mori ERR (BmERR), hexokinase (BmHK), pyruvate kinase (BmPK) and phosphofructokinase (BmPFK) during embryonic development. The expression of BmERR tended to be similar to that of the other genes. We observed a regulatory association between BmERR and glycolytic rate-limiting enzymes by BmERR overexpression, RNA interference (RNAi), and ERR inhibitors in B. mori embryo cells. Subsequently, ERR cis-regulation elements (ERREs) were predicted and identified in the BmPFK promoter. Transfection assays, electrophoretic mobility shift assays and chromatin immunoprecipitation showed that BmERR can bind to one of these elements to regulate the expression of BmPFK. ERREs were also predicted in the BmHK and BmPK promoters. In the eggs, the expression of glycolytic rate-limiting enzyme genes was suppressed when the expression of BmERR was interference by double-stranded BmERR, the glucose levels also was increased. Meanwhile, the development of silkworm embryos was delayed by about 1 day. These results indicate that BmERR can bind to the ERREs of glycolytic gene promoters and regulate the expression of glycolytic genes, ultimately affecting embryonic development in silkworms.
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Affiliation(s)
- W Long
- Biological Science Research Center Southwest University, Chongqing, China
- Chongqing Key Laboratory of Sericulture Science, Chongqing, China
| | - J Wu
- Biological Science Research Center Southwest University, Chongqing, China
- Chongqing Key Laboratory of Sericulture Science, Chongqing, China
| | - G Shen
- Biological Science Research Center Southwest University, Chongqing, China
- Chongqing Key Laboratory of Sericulture Science, Chongqing, China
- Chongqing Engineering and Technology Research Center for Novel Silk Materials, Chongqing, China
| | - H Zhang
- Biological Science Research Center Southwest University, Chongqing, China
- Chongqing Key Laboratory of Sericulture Science, Chongqing, China
| | - H Liu
- Biological Science Research Center Southwest University, Chongqing, China
- Chongqing Key Laboratory of Sericulture Science, Chongqing, China
| | - Y Xu
- Biological Science Research Center Southwest University, Chongqing, China
- Chongqing Key Laboratory of Sericulture Science, Chongqing, China
| | - J Gu
- Biological Science Research Center Southwest University, Chongqing, China
- Chongqing Key Laboratory of Sericulture Science, Chongqing, China
| | - L Jia
- Biological Science Research Center Southwest University, Chongqing, China
- Chongqing Key Laboratory of Sericulture Science, Chongqing, China
| | - Y Lin
- Biological Science Research Center Southwest University, Chongqing, China
- Chongqing Key Laboratory of Sericulture Science, Chongqing, China
- Chongqing Engineering and Technology Research Center for Novel Silk Materials, Chongqing, China
| | - Q Xia
- Biological Science Research Center Southwest University, Chongqing, China
- Chongqing Key Laboratory of Sericulture Science, Chongqing, China
- Chongqing Engineering and Technology Research Center for Novel Silk Materials, Chongqing, China
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47
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Wang XL, Wei HX, Jia L, Huo D, Wang HQ, Wang QY. [Summary of research in economic burden of hand, foot, and mouth disease in China]. Zhonghua Liu Xing Bing Xue Za Zhi 2020; 41:273-279. [PMID: 32164141 DOI: 10.3760/cma.j.issn.0254-6450.2020.02.023] [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
Since 2010, the incidence of hand, foot, and mouth disease (HFMD) has ranked top in notifiable infectious disease in China, causing economic losses to many families and the society of China. This paper summarizes the related methods, results and problems systematically in the research of economic burden of HFMD in China to provide reference for the better estimation of the economic burden caused by HFMD. Many studies showed that HFMD, especially severe and fatal cases, had posed heavy economic burden on the society. To mitigate the burden caused by HFMD, it is necessary to decrease the risk of severe and fatal cases, as well as to reduce the incidence of mild cases.
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Affiliation(s)
- X L Wang
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing Municipal Research Center for Preventive Medicine, Beijing 100013, China; Department of National Immunization Program, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - H X Wei
- School of Public Health, Capital Medical University, Beijing 100069, China
| | - L Jia
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing Municipal Research Center for Preventive Medicine, Beijing 100013, China
| | - D Huo
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing Municipal Research Center for Preventive Medicine, Beijing 100013, China
| | - H Q Wang
- Department of National Immunization Program, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Q Y Wang
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing Municipal Research Center for Preventive Medicine, Beijing 100013, China
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48
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Li G, Xie Q, Yang Z, Wang L, Zhang X, Zuo B, Zhang S, Yang A, Jia L. Sp1-mediated epigenetic dysregulation dictates HDAC inhibitor susceptibility of HER2-overexpressing breast cancer. Int J Cancer 2019; 145:3285-3298. [PMID: 31111958 DOI: 10.1002/ijc.32425] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [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: 12/19/2018] [Revised: 04/23/2019] [Accepted: 05/13/2019] [Indexed: 12/17/2023]
Abstract
Human epidermal growth factor receptor 2 (HER2/erbB2) is a key driver and therapeutic target for breast cancer. The treatment of HER2-positive breast cancer remains a clinical challenge largely due to the limited understanding of HER2-driving oncogenic signaling and the frequent resistance to simply HER2-targeted therapy. Here, we show that the histone deacetylase inhibitor, trichostatin A (TSA), suppresses HER2-overexpressing breast cancer via upregulation of miR-146a and the resultant repression of its oncogenic targets, interleukin-1 receptor-associated kinase 1 and the chemokine receptor CXCR4. Mechanistically, histone H3K56 acetylation and deacetylation on the MIR146A promoter are catalyzed respectively by the acetyltransferase p300 and histone deacetylase 1 (HDAC1), both of which are recruited to the genomic loci by the transcription factor specificity protein 1 (Sp1). HER2 signaling phosphorylates Sp1 and induces its predominant association with HDAC1, but not p300, leading to histone hypoacetylation and silencing of MIR146A. In addition, the death receptor Fas is similarly downregulated by the aforementioned epigenetic paradigm, indicating its wide involvement in impairing tumor suppressor gene expression. Consequently, TSA synergizes with lapatinib, a tyrosine kinase inhibitor of HER2, to suppress breast cancer in vitro and in rodent models. These findings demonstrate a novel mechanism of HER2-driven carcinogenesis and suggest the applicability of combined HER2 and HDAC targeting in breast cancer therapy.
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MESH Headings
- Animals
- Breast Neoplasms/drug therapy
- Breast Neoplasms/genetics
- Cell Line, Tumor
- Down-Regulation/drug effects
- Down-Regulation/genetics
- Epigenesis, Genetic/genetics
- Female
- Gene Expression Regulation, Neoplastic/drug effects
- Gene Expression Regulation, Neoplastic/genetics
- Histone Deacetylase 1/genetics
- Histone Deacetylase Inhibitors/pharmacology
- Histone Deacetylases/genetics
- Humans
- MCF-7 Cells
- Mice
- Mice, Inbred BALB C
- Mice, Nude
- Promoter Regions, Genetic/drug effects
- Promoter Regions, Genetic/genetics
- Receptor, ErbB-2/genetics
- Sp1 Transcription Factor/genetics
- Transcription, Genetic/drug effects
- Transcription, Genetic/genetics
- Transcriptional Activation/drug effects
- Transcriptional Activation/genetics
- Up-Regulation/drug effects
- Up-Regulation/genetics
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Affiliation(s)
- Guoyin Li
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, China
- College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou, China
| | - Qiaosheng Xie
- Department of Immunology, Fourth Military Medical University, Xi'an, China
- Department of Radiation Oncology, China-Japan Friendship Hospital, Beijing, China
| | - Zhiwei Yang
- Department of Applied Physics, School of Science, Xi'an Jiaotong University, Xi'an, China
| | - Lei Wang
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, China
| | - Xiang Zhang
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, China
| | - Baile Zuo
- Department of Immunology, Fourth Military Medical University, Xi'an, China
| | - Shengli Zhang
- Department of Applied Physics, School of Science, Xi'an Jiaotong University, Xi'an, China
| | - Angang Yang
- Department of Immunology, Fourth Military Medical University, Xi'an, China
| | - Lintao Jia
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, China
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49
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Cardoso F, Bardia A, André F, Cescon D, McArthur H, Telli M, Loi S, Cortes J, Schmid P, Harbeck N, Denkert C, Jackisch C, Jia L, Hirshfield K, Karantza V. KEYNOTE-756: A randomized, double-blind, phase III study of pembrolizumab or placebo with neoadjuvant chemotherapy and adjuvant endocrine therapy for high-risk, early-stage, ER+/HER2−breast cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz416.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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50
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Wei YF, Yin P, Liu L, Wu SS, Jia L, Sun S. Effects of APELIN-13 on the expression of IL-6, TNF-α, and IFN-γ in rats with experimental autoimmune neuritis. J BIOL REG HOMEOS AG 2019; 33:1369-1376. [PMID: 31637897 DOI: 10.23812/19-161-a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The objective of this paper was to study the effects of PYR-ARG-PRO-ARG-LEU-SER-HIS-YSGLY-PRO-MET-PRO-PHE-OH (APELIN-13) on the expression of inflammatory factors interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), and interferon-γ (IFN-γ) in rats with experimental autoimmune neuritis (EAN). A total of 30 rats were divided into a control group, an EAN group, and an APELIN-13 group. Enzyme-linked immunosorbent assay (ELISA) was used to detect the levels of IL-6, TNF-α, and IFN-γ in rat plasma. Real-time quantitative Polymerase Chain Reaction (PCR) and Western blot were used to detect the protein and mRNA expression of IL-6, TNF-α, and IFN-γ in rat lymph nodes. In the EAN group, the infiltration of various types of inflammatory cells and focal demyelination were observed near the nerve fascicles of sciatic nerves. Compared with the EAN group, the infiltration of inflammatory cells and demyelination in the APELIN-13 group decreased significantly. The levels of plasma IL-6, TNF-α, and IFN-γ in the EAN group were significantly higher than those in the control group (P < 0.05) but significantly lower than those in the APELIN-13 group (P < 0.05). Compared with the control group, the mRNA and protein expression of IL-6, TNF-α, and IFN-γ increased significantly (P < 0.05) in the EAN group but decreased significantly in the APELIN-13 group (P < 0.05). In conclusion, APELIN-13 exerted a protective effect against EAN in rats.
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Affiliation(s)
- Y F Wei
- Department of Neurology, Heilongjiang Provincial Hospital, Harbin, Heilongjiang, China
| | - P Yin
- Department of Neurology, Heilongjiang Provincial Hospital, Harbin, Heilongjiang, China
| | - L Liu
- Department of Neurology, Heilongjiang Provincial Hospital, Harbin, Heilongjiang, China
| | - S S Wu
- Department of Neurology, Heilongjiang Provincial Hospital, Harbin, Heilongjiang, China
| | - L Jia
- Department of Nursing, Heilongjiang Provincial Hospital, Harbin, Heilongjiang, China
| | - S Sun
- Department of Geriatric Neurology, Heilongjiang Provincial Hospital, Harbin, Heilongjiang, China
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