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Mubarik S, Luo L, Naeem S, Mubarak R, Iqbal M, Hak E, Yu C. Epidemiology and demographic patterns of cardiovascular diseases and neoplasms deaths in Western Europe: a 1990-2019 analysis. Public Health 2024; 231:187-197. [PMID: 38703493 DOI: 10.1016/j.puhe.2024.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/25/2024] [Accepted: 04/03/2024] [Indexed: 05/06/2024]
Abstract
OBJECTIVES Cardiovascular diseases (CVDs) and neoplasms have been considered as public health concerns worldwide. This study aimed to estimate the epidemiological patterns of death burden on CVDs and neoplasms and its attributable risk factors in Western Europe from 1990 to 2019 to discuss the potential causes of the disparities. STUDY DESIGN AND METHODS We collected data on CVDs and neoplasms deaths in 24 Western European countries from the Global Burden of Disease Study. We analyzed patterns by age, sex, country, and associated risk factors. The results include percentages of total deaths, age-standardized death rates per 100,000 population, and uncertainty intervals (UIs). Time trends were assessed using annual percent change. RESULTS In 2019, CVDs and neoplasms accounted for 33.54% and 30.15% of Western Europe's total deaths, with age-standardized death rates of 128.05 (95% UI: 135.37, 113.02) and 137.51 (95% UI: 142.54, 128.01) per 100,000. Over 1990-2019, CVDs rates decreased by 54.97%, and neoplasms rates decreased by 19.54%. Top CVDs subtypes were ischemic heart disease and stroke; top cancers for neoplasms were lung and colorectal. Highest CVD death burdens were in Finland, Greece, Austria; neoplasm burdens in Monaco, San Marino, Andorra. The major risk factors were metabolic (CVDs) and behavioral (neoplasms). Gender differences revealed higher CVDs death burden in males, while neoplasms burden varied by risk factors and age groups. CONCLUSION In 2019, CVDs and neoplasms posed significant health risks in Western Europe, with variations in death burdens and risk factors across genders, age groups, and countries. Future interventions should target vulnerable groups to lessen the impact of CVDs and neoplasms in the region.
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Affiliation(s)
- S Mubarik
- PharmacoTherapy, -Epidemiology and -Economics, Groningen Research Institute of Pharmacy, University of Groningen, Groningen, the Netherlands; Department of Epidemiology and Biostatistics, School of Public Health, Wuhan University, Wuhan 430071 China.
| | - L Luo
- Center for Evidence-Based and Translational Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China.
| | - S Naeem
- Department of Preventive Medicine, School of Public Health, Wuhan University, Wuhan, China.
| | - R Mubarak
- Department of Economics, PMAS, Arid Agriculture University, Rawalpindi, Pakistan.
| | - M Iqbal
- Department of Psychology, School of Philosophy, Wuhan University, Wuhan, China.
| | - E Hak
- PharmacoTherapy, -Epidemiology and -Economics, Groningen Research Institute of Pharmacy, University of Groningen, Groningen, the Netherlands.
| | - C Yu
- Department of Epidemiology and Biostatistics, School of Public Health, Wuhan University, Wuhan 430071 China.
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Luo L, Wang Z, Wang X, Gao J, Zheng A, Duan X. Fluorine-18 prostate-specific membrane antigen-1007-avid indeterminate bone lesions in prostate cancer: clinical and PET/CT features to predict outcomes and prognosis. Clin Radiol 2024; 79:346-353. [PMID: 38216370 DOI: 10.1016/j.crad.2023.12.008] [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: 09/05/2023] [Revised: 11/29/2023] [Accepted: 12/11/2023] [Indexed: 01/14/2024]
Abstract
AIM To determine clinical and fluorine-18 prostate-specific membrane antigen-1007 (18F-PSMA-1007) integrated positron-emission tomography (PET)/computed tomography (CT) features that could be used to interpret indeterminate bone lesions (IBLs) and assess the prognosis of prostate cancer (PCa) in patients with IBLs. MATERIALS AND METHODS Consecutive patients who underwent PSMA PET/CT were analysed retrospectively. IBLs were identified as benign or malignant based on follow-up imaging and clinical management. Lesion- and patient-based assessments were performed to define features predictive of bone lesion results and determine clinical risk. Patients' prognosis was analysed based on clinical characteristics, including prostate-specific antigen (PSA) and alkaline phosphatase (ALP), respectively. RESULTS A total of 105 patients (mean age ± SD, 72.1 ± 8 years) were evaluated and 158 IBLs were identified. Fifty-three (33.5%), 36 (22.8%), and 69 (43.7%) IBLs were benign, malignant, and equivocal, respectively. Variables including location, maximum standard uptake value (SUVmax), and lymph node metastases (LNM) were related to the benignancy or malignancy of IBLs (p=0.046, p<0.001 and p<0.001, respectively). Regression analysis indicated that LNM, SUVmax, and location of IBLs could be predictors of lesion interpretation (p<0.001, p=0.002 and p=0.035). Patients with benign IBLs experienced the most considerable decreases in PSA and ALP levels. CONCLUSIONS LNM, SUVmax, and location may contribute to IBL interpretation. A rapid decrease in PSA and ALP levels might suggest a better prognosis for patients with benign IBLs.
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Affiliation(s)
- L Luo
- PET/CT Center, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Z Wang
- PET/CT Center, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - X Wang
- PET/CT Center, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - J Gao
- PET/CT Center, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - A Zheng
- PET/CT Center, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - X Duan
- PET/CT Center, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
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Huang C, Luo L, Mootz M, Shang J, Man P, Su L, Perakis IE, Yao YX, Wu A, Wang J. Extreme terahertz magnon multiplication induced by resonant magnetic pulse pairs. Nat Commun 2024; 15:3214. [PMID: 38615025 PMCID: PMC11016094 DOI: 10.1038/s41467-024-47471-6] [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: 01/16/2024] [Accepted: 03/26/2024] [Indexed: 04/15/2024] Open
Abstract
Nonlinear interactions of spin-waves and their quanta, magnons, have emerged as prominent candidates for interference-based technology, ranging from quantum transduction to antiferromagnetic spintronics. Yet magnon multiplication in the terahertz (THz) spectral region represents a major challenge. Intense, resonant magnetic fields from THz pulse-pairs with controllable phases and amplitudes enable high order THz magnon multiplication, distinct from non-resonant nonlinearities such as the high harmonic generation by below-band gap electric fields. Here, we demonstrate exceptionally high-order THz nonlinear magnonics. It manifests as 7th-order spin-wave-mixing and 6th harmonic magnon generation in an antiferromagnetic orthoferrite. We use THz two-dimensional coherent spectroscopy to achieve high-sensitivity detection of nonlinear magnon interactions up to six-magnon quanta in strongly-driven many-magnon correlated states. The high-order magnon multiplication, supported by classical and quantum spin simulations, elucidates the significance of four-fold magnetic anisotropy and Dzyaloshinskii-Moriya symmetry breaking. Moreover, our results shed light on the potential quantum fluctuation properties inherent in nonlinear magnons.
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Affiliation(s)
- C Huang
- Ames National Laboratory, Ames, IA, 50011, USA
- Department of Physics and Astronomy, Iowa State University, Ames, IA, 50011, USA
| | - L Luo
- Ames National Laboratory, Ames, IA, 50011, USA
| | - M Mootz
- Ames National Laboratory, Ames, IA, 50011, USA
| | - J Shang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 201899, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - P Man
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 201899, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - L Su
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 201899, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - I E Perakis
- Department of Physics, University of Alabama at Birmingham, Birmingham, AL, 35294-1170, USA
| | - Y X Yao
- Ames National Laboratory, Ames, IA, 50011, USA
| | - A Wu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 201899, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - J Wang
- Ames National Laboratory, Ames, IA, 50011, USA.
- Department of Physics and Astronomy, Iowa State University, Ames, IA, 50011, USA.
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Dong XY, Zou YX, Lyu FF, Yang WH, Zhang HL, Niu YH, Wang HJ, Guo R, Wang X, Li L, Lin ZH, Luo L, Lu DL, Lu Q, Liu HM, Chen LN. [A multicenter study on respiratory pathogen detection with Mycoplasma pneumoniae pneumonia in children]. Zhonghua Er Ke Za Zhi 2024; 62:310-316. [PMID: 38527500 DOI: 10.3760/cma.j.cn112140-20240117-00054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
Objective: To analyze the status of respiratory pathogen detection and the clinical features in children with Mycoplasma pneumoniae pneumonia (MPP). Methods: A prospective, multicenter study was conducted to collect clinical data, including medical history, laboratory examinations and multiplex PCR tests of children diagnosed with MPP from 4 hospitals in China between November 15th and December 20th, 2023. The multiplex PCR results and clinical characteristics of MPP children in different regions were analyzed. The children were divided into severe and mild groups according to the severity of the disease. Patients in the severe group were further divided into Mycoplasma pneumoniae (MP) alone and Multi-pathogen co-detection groups based on whether other pathogens were detected besides MP, to analyze the influence of respiratory pathogen co-detection rate on the severity of the disease. Mann-Whitney rank sum test and Chi-square test were used to compare data between independent groups. Results: A total of 298 children, 136 males and 162 females, were enrolled in this study, including 204 children in the severe group with an onset age of 7.0 (6.0, 8.0) years, and 94 children in the mild group with an onset age of 6.5 (4.0, 7.8) years. The level of C-reactive protein, D-dimer, lactic dehydrogenase (LDH) were significantly higher (10.0 (5.0, 18.0) vs. 5.0 (5.0, 7.5) mg/L, 0.6 (0.4, 1.1) vs. 0.5 (0.3, 0.6) mg/L, 337 (286, 431) vs. 314 (271, 393) U/L, Z=2.02, 2.50, 3.05, all P<0.05), and the length of hospitalization was significantly longer in the severe group compared with those in mild group (6.0 (6.0, 7.0) vs. 5.0 (4.0, 6.0) d, Z=4.37, P<0.05). The time from onset to admission in severe MPP children was significantly shorter than that in mild MPP children (6.0 (5.0, 9.5) vs. 9.0 (7.0, 13.0) d, Z=2.23, P=0.026). All patients completed the multiplex PCR test, with 142 cases (47.7%) MPP children detected with 21 pathogens including adenovirus 25 cases (8.4%), human coronavirus 23 cases (7.7%), rhinovirus 21 cases (7.0%), Streptococcus pneumoniae 21 cases (7.0%), influenza A virus 18 cases (6.0%). The pathogens with the highest detection rates in Tianjin, Shanghai, Wenzhou and Chengdu were Staphylococcus aureus at 10.7% (8/75), adenovirus at 13.0% (10/77), adenovirus at 15.3% (9/59), and both rhinovirus and Haemophilus influenzae at 11.5% (10/87) each. The multi-pathogen co-detection rate in severe MPP children was significantly higher than that in mild MPP group (52.9% (108/204) vs. 36.2% (34/94), χ²=10.62,P=0.005). Among severe MPP children, there are 89 cases in the multi-pathogen co-detection group and 73 cases in the simple MPP group. The levels of LDH, D-dimer and neutrophil counts in the multi-pathogen co-detection group were significantly higher than those in the simple MPP group (348 (284, 422) vs. 307 (270, 358) U/L, 0.8 (0.5, 1.5) vs. 0.6 (0.4, 1.0) mg/L, 4.99 (3.66, 6.89)×109 vs. 4.06 (2.91, 5.65)×109/L, Z=5.17, 4.99, 6.11, all P<0.05). Conclusions: The co-detection rate of respiratory pathogens, LDH and D-dimer in children with severe MPP were higher than those with mild MPP. Among severe MPP children the stress response of children in co-detection group was more serious than that of children with simple MPP.
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Affiliation(s)
- X Y Dong
- Department of Pulmonology, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200062, China
| | - Y X Zou
- Department of Pulmonology, Tianjin Children's Hospital (Children's Hospital of Tianjin University), Machang District, Tianjin 300074, China
| | - F F Lyu
- Department of Pediatric Respiratory Medicine, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - W H Yang
- Department of Pediatric Pulmonology and Immunology, West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | - H L Zhang
- Department of Pediatric Respiratory Medicine, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - Y H Niu
- Department of Pulmonology, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200062, China
| | - H J Wang
- Department of Pulmonology, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200062, China
| | - R Guo
- Department of Pulmonology, Tianjin Children's Hospital (Children's Hospital of Tianjin University), Machang District, Tianjin 300074, China
| | - X Wang
- Department of Pulmonology, Tianjin Children's Hospital (Children's Hospital of Tianjin University), Machang District, Tianjin 300074, China
| | - L Li
- Department of Pulmonology, Tianjin Children's Hospital (Children's Hospital of Tianjin University), Machang District, Tianjin 300074, China
| | - Z H Lin
- Department of Pediatric Respiratory Medicine, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - L Luo
- Department of Pediatric Pulmonology, Yaan People's Hospital, Yaan 625000, China
| | - D L Lu
- Department of Pediatric Pulmonology and Immunology, West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | - Q Lu
- Department of Pulmonology, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200062, China
| | - H M Liu
- Department of Pediatric Pulmonology and Immunology, West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | - L N Chen
- Department of Pediatric Pulmonology and Immunology, West China Second University Hospital, Sichuan University, Chengdu 610041, China
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Feng Z, Liu S, Su M, Song C, Lin C, Zhao F, Li Y, Zeng X, Zhu Y, Hou Y, Ren C, Zhang H, Yi P, Ji Y, Wang C, Li H, Ma M, Luo L, Li L. TANGO6 regulates cell proliferation via COPI vesicle-mediated RPB2 nuclear entry. Nat Commun 2024; 15:2371. [PMID: 38490996 PMCID: PMC10943085 DOI: 10.1038/s41467-024-46720-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: 11/02/2022] [Accepted: 03/01/2024] [Indexed: 03/18/2024] Open
Abstract
Coat protein complex I (COPI) vesicles mediate the retrograde transfer of cargo between Golgi cisternae and from the Golgi to the endoplasmic reticulum (ER). However, their roles in the cell cycle and proliferation are unclear. This study shows that TANGO6 associates with COPI vesicles via two transmembrane domains. The TANGO6 N- and C-terminal cytoplasmic fragments capture RNA polymerase II subunit B (RPB) 2 in the cis-Golgi during the G1 phase. COPI-docked TANGO6 carries RPB2 to the ER and then to the nucleus. Functional disruption of TANGO6 hinders the nuclear entry of RPB2, which accumulates in the cytoplasm, causing cell cycle arrest in the G1 phase. The conditional depletion or overexpression of TANGO6 in mouse hematopoietic stem cells results in compromised or expanded hematopoiesis. Our study results demonstrate that COPI vesicle-associated TANGO6 plays a role in the regulation of cell cycle progression by directing the nuclear transfer of RPB2, making it a potential target for promoting or arresting cell expansion.
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Affiliation(s)
- Zhi Feng
- Research center of Stem cells and Ageing, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, PR China
| | - Shengnan Liu
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University, Chongqing, 400715, PR China
| | - Ming Su
- Research center of Stem cells and Ageing, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, PR China
| | - Chunyu Song
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University, Chongqing, 400715, PR China
| | - Chenyu Lin
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University, Chongqing, 400715, PR China
| | - Fangying Zhao
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University, Chongqing, 400715, PR China
| | - Yang Li
- Research center of Stem cells and Ageing, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, PR China
| | - Xianyan Zeng
- Institute of Life Sciences, Laboratory of Developmental Biology, Department of Cell Biology and Genetics, Chongqing Medical University, Chongqing, 400016, PR China
| | - Yong Zhu
- Institute of Life Sciences, Laboratory of Developmental Biology, Department of Cell Biology and Genetics, Chongqing Medical University, Chongqing, 400016, PR China
| | - Yu Hou
- Institute of Life Sciences, Laboratory of Developmental Biology, Department of Cell Biology and Genetics, Chongqing Medical University, Chongqing, 400016, PR China
| | - Chunguang Ren
- Institute of Life Sciences, Laboratory of Developmental Biology, Department of Cell Biology and Genetics, Chongqing Medical University, Chongqing, 400016, PR China
| | - Huan Zhang
- Institute of Life Sciences, Laboratory of Developmental Biology, Department of Cell Biology and Genetics, Chongqing Medical University, Chongqing, 400016, PR China
| | - Ping Yi
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, 401120, PR China
| | - Yong Ji
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine; Key Laboratory of Targeted Intervention of Cardiovascular Disease; Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, 211166, PR China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), Harbin Medical University, Harbin, 150076, Heilongjiang, PR China
| | - Chao Wang
- MOE Key Laboratory for Membraneless Organelles & Cellular Dynamics, Hefei National Laboratory for Physical Sciences at the Microscale, School of Life Sciences, University of Science and Technology of China, Hefei, 230027, PR China
| | - Hongtao Li
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University, Chongqing, 400715, PR China
| | - Ming Ma
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University, Chongqing, 400715, PR China
| | - Lingfei Luo
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University, Chongqing, 400715, PR China.
| | - Li Li
- Research center of Stem cells and Ageing, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, PR China.
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Wu C, Zhang W, Luo Y, Cheng C, Wang X, Jiang Y, Li S, Luo L, Yang Y. Zebrafish ppp1r21 mutant as a model for the study of primary biliary cholangitis. J Genet Genomics 2023; 50:1004-1013. [PMID: 37271428 DOI: 10.1016/j.jgg.2023.05.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 05/05/2023] [Accepted: 05/22/2023] [Indexed: 06/06/2023]
Abstract
Primary biliary cholangitis (PBC) is an autoimmune cholestatic liver disease that progresses to fibrosis and cirrhosis, resulting from the gradual destruction of intrahepatic bile ducts. Exploring genetic variants associated with PBC is essential to understand the pathogenesis of PBC. Here we identify a zebrafish balloon dog (blg) mutant with intrahepatic bile duct branching defects, exhibiting several key pathological PBC-like features, including immunodominant autoantigen PDC-E2 production, cholangiocyte apoptosis, immune cell infiltration, inflammatory activation, and liver fibrosis. blg encodes the protein phosphatase 1 regulatory subunit 21 (Ppp1r21), which is enriched in the liver and its peripheral tissues and plays a vital role in the early intrahepatic bile duct formation stage. Further studies show an excessive activation of the PI3K/AKT/mTOR pathway in the hepatic tissues in the mutant, while treatment with the pathway inhibitor LY294002 and rapamycin partially rescues intrahepatic bile duct branching defects and alleviates the PBC-like symptoms. These findings implicate the potential role of the Ppp1r21-mediated PI3K/AKT/mTOR pathway in the pathophysiology of PBC.
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Affiliation(s)
- Chaoying Wu
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Wenfeng Zhang
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Yiyu Luo
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Chaoqing Cheng
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Xinjuan Wang
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Yan Jiang
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Shuang Li
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Lingfei Luo
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Yun Yang
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China.
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Chen T, Zheng B, Yang P, Zhang Z, Su Y, Chen Y, Luo L, Luo D, Lin Y, Xie R, Zeng L. The Incidence and Prognosis Value of Perineural Invasion in Rectal Carcinoma: From Meta-Analyses and Real-World Clinical Pathological Features. Clin Oncol (R Coll Radiol) 2023; 35:e611-e621. [PMID: 37263883 DOI: 10.1016/j.clon.2023.05.008] [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: 06/27/2022] [Revised: 04/13/2023] [Accepted: 05/16/2023] [Indexed: 06/03/2023]
Abstract
AIMS Perineural invasion (PNI) is a special type of metastasis of several cancers and has been reported as being a factor for poor prognosis in colorectal carcinoma. However, investigations of PNI in only rectal cancer and a comprehensive analysis combining meta-analyses with real-world case studies remain lacking. MATERIALS AND METHODS First, articles from 2000 to 2020 concerning the relationship between PNI and rectal cancer prognoses and clinical features were meta-analysed. Subsequently, we carried out a retrospective analysis of 312 rectal cancer cases that underwent radical surgery in the real world. The incidence of PNI and the relationship between PNI and prognosis, as well as clinicopathological factors, were investigated. RESULTS The incidence of PNI was 23.09% and 33.01% in the meta-analysis and clinical cases, respectively. PNI occurred as early as stage I (2.94%). Moreover, neoadjuvant therapy significantly reduced the PNI-positive rate (20.34% versus 26.54%). Both meta-analysis and real-world clinical case studies suggested that PNI-positive patients had poorer prognoses than PNI-negative patients. We established an effective risk model consisting of T stage, differentiation and lymphovascular invasion to predict PNI in rectal cancer. CONCLUSION PNI is a poor prognostic factor for rectal cancer and could occur even in stage I. Additionally, neoadjuvant therapy could sufficiently reduce the PNI-positive rate. T stage, lymphovascular invasion and differentiation grade were independent risk factors for PNI and the risk model that included these factors could predict the probability of PNI.
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Affiliation(s)
- T Chen
- Department of Abdominal Oncology, The Cancer Center of the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - B Zheng
- Department of Abdominal Oncology, The Cancer Center of the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - P Yang
- Department of Pathology, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Z Zhang
- Department of Radiology, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Y Su
- Department of General Surgery, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Y Chen
- Department of Abdominal Oncology, The Cancer Center of the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - L Luo
- Department of Abdominal Oncology, The Cancer Center of the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - D Luo
- Department of Abdominal Oncology, The Cancer Center of the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Y Lin
- Department of Pathology, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - R Xie
- Department of Abdominal Oncology, The Cancer Center of the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China.
| | - L Zeng
- Department of Abdominal Oncology, The Cancer Center of the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China.
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Cai P, Ni R, Lv M, Liu H, Zhao J, He J, Luo L. VEGF signaling governs the initiation of biliary-mediated liver regeneration through the PI3K-mTORC1 axis. Cell Rep 2023; 42:113028. [PMID: 37632748 DOI: 10.1016/j.celrep.2023.113028] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 07/12/2023] [Accepted: 08/10/2023] [Indexed: 08/28/2023] Open
Abstract
Biliary epithelial cells (BECs) are a potential source to repair the damaged liver when hepatocyte proliferation is compromised. Promotion of BEC-to-hepatocyte transdifferentiation could be beneficial to the clinical therapeutics of patients with end-stage liver diseases. However, mechanisms underlying the initiation of BEC transdifferentiation remain largely unknown. Here, we show that upon extreme hepatocyte injury, vegfaa and vegfr2/kdrl are notably induced in hepatic stellate cells and BECs, respectively. Pharmacological and genetic inactivation of vascular endothelial growth factor (VEGF) signaling would disrupt BEC dedifferentiation and proliferation, thus restraining hepatocyte regeneration. Mechanically, VEGF signaling regulates the activation of the PI3K-mammalian target of rapamycin complex 1 (mTORC1) axis, which is essential for BEC-to-hepatocyte transdifferentiation. In mice, VEGF signaling exerts conserved roles in oval cell activation and BEC-to-hepatocyte differentiation. Taken together, this study shows VEGF signaling as an initiator of biliary-mediated liver regeneration through activating the PI3K-mTORC1 axis. Modulation of VEGF signaling in BECs could be a therapeutic approach for patients with end-stage liver diseases.
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Affiliation(s)
- Pengcheng Cai
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Rui Ni
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Mengzhu Lv
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Huijuan Liu
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Jieqiong Zhao
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Jianbo He
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Lingfei Luo
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China; School of Life Sciences, Fudan University, Shanghai 200438, China.
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9
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Yang Y, Li S, Luo L. Responses of organ precursors to correct and incorrect inductive signals. Trends Cell Biol 2023:S0962-8924(23)00191-5. [PMID: 37739814 DOI: 10.1016/j.tcb.2023.08.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 08/14/2023] [Accepted: 08/31/2023] [Indexed: 09/24/2023]
Abstract
During embryonic development, the inductive molecules produced by local origins normally arrive at their target tissues in a nondirectional, diffusion manner. The target organ precursor cells must correctly interpret these inductive signals to ensure proper specification/differentiation, which is dependent on two prerequisites: (i) obtaining cell-intrinsic competence; and (ii) receiving correct inductive signals while resisting incorrect ones. Gain of intrinsic competence could avoid a large number of misinductions because the incompetent cells are nonresponsive to inductive signals. However, in cases of different precursor cells with similar competence and located in close proximity, resistance to incorrect inductive signals is essential for accurate determination of cell fate. Here we outline the mechanisms of how organ precursors respond to correct and incorrect inductive signals.
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Affiliation(s)
- Yun Yang
- Institute of Development Biology and Regenerative Medicine, Southwest University, Chongqing, China
| | - Shuang Li
- Institute of Development Biology and Regenerative Medicine, Southwest University, Chongqing, China
| | - Lingfei Luo
- Institute of Development Biology and Regenerative Medicine, Southwest University, Chongqing, China; School of Life Sciences, Fudan University, Shanghai, China.
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10
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Yang L, Luo L, Zhang YT, Shi DD, Ci ZG, Xiao BS, Yang SQ. [Clinical implications of thrombolytic therapy for patients with acute intermediate-high risk pulmonary embolism in Tibet plateau, China]. Zhonghua Jie He He Hu Xi Za Zhi 2023; 46:924-929. [PMID: 37670647 DOI: 10.3760/cma.j.cn112147-20230413-00172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 09/07/2023]
Abstract
At present, clinical studies and case reports of systemic thrombolytic therapy for patients with acute pulmonary embolism in Tibet Plateau are very rare. There is little understanding of the risk factors, clinical characteristics, and thrombolytic therapy for patients with acute pulmonary embolism at intermediate-high risk in Tibet Plateau. In this paper, we reported the data of 4 patients with acute intermediate-high risk pulmonary embolism treated with thrombolytic therapy in Lhasa People's Hospital. The demographic characteristics, clinical manifestations, treatment, and outcomes were analyzed. We summarized the clinical features and raised scientific issues. We aimed to provide basic data to improve the standardized diagnosis and treatment of acute pulmonary embolism in plateau, and to point out the direction of future clinical research in this field.
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Affiliation(s)
- L Yang
- Department of Respiratory and Critical Care Medicine, Lhasa People's Hospital, Lhasa Tibet, 850000, China
| | - L Luo
- Department of Respiratory and Critical Care Medicine, Lhasa People's Hospital, Lhasa Tibet, 850000, China
| | - Y T Zhang
- Department of Respiratory and Critical Care Medicine, Lhasa People's Hospital, Lhasa Tibet, 850000, China
| | - D D Shi
- Department of Respiratory and Critical Care Medicine, Lhasa People's Hospital, Lhasa Tibet, 850000, China
| | - Z G Ci
- Department of Respiratory and Critical Care Medicine, Lhasa People's Hospital, Lhasa Tibet, 850000, China
| | - B S Xiao
- Department of Respiratory and Critical Care Medicine, Lhasa People's Hospital, Lhasa Tibet, 850000, China
| | - S Q Yang
- Department of Pulmonary and Critical Care Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing Institute of Respiratory Medicine, Beijing 100020, China
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11
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Shui J, Luo L, Xiang YG, Shi GM, Wu JL, Pan JH. [Analysis of biofilm-forming ability and drug resistance for Hypervirulent Klebsiella pneumoniae]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:1452-1457. [PMID: 37743308 DOI: 10.3760/cma.j.cn112150-20220929-00938] [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: 09/26/2023]
Abstract
Investigate the biofilm-forming ability and drug resistance of Hypervirulent Klebsiella pneumoniae (HvKP) to provide scientific basis for the treatment of HvKP-infection. A total of 96 Klebsiella pneumoniae strains isolated from clinical infection specimens in Changsha Central Hospital from January to December in 2021 were retrospectively collected, and the clinical data of patients were collected. The string test preliminarily distinguished between HvKP and classic Klebsiella pneumoniae (CKP). The biofilm-forming ability of clinical strains of Klebsiella pneumoniae (KP) was determined by microplate method. The Vitek 2 Compact automatic microbial identification/drug sensitivity analysis system was used for bacterial identification and drug sensitivity test. The clinical data of patients, biofilm forming ability and drug resistance in the HvKP group and those in the CKP group were compared and analyzed. The results showed that a total of 20 strains of HvKP were isolated from 96 non-repetitive KP, and the detection rate was 20.8%. HvKP mainly come from respiratory specimens, up to 75.0%.The prevalence of hepatobiliary diseases and the infection rate of multiple sites in patients with HvKP infection were higher than those in patients with CKP infection, and the difference was statistically significant(χ2=5.184,7.488;P=0.023,0.006).There was no significant difference between the two groups in terms of gender, age, ICU admission, hypertension, diabetes, coronary heart disease, lung disease, urinary system disease, central nervous system disease and laboratory test indexes (all P>0.05).17 (85.0%) strains of HvKP can form biofilm, including 2 strains with weak biofilm-forming ability (10.0%), 10 strains with moderate biofilm-forming ability (50.0%) and 5 strains with strong biofilm-forming ability (25.0%). Among the 76 CKP, 71 (93.4%) could form biofilm, including 13 (17.1%) with weak biofilm-forming ability, 30(39.5%) with moderate biofilm-forming ability and 28 (36.8%) with strong biofilm-forming ability. There was no significant difference in biofilm-forming ability between HvKP and CKP (χ2=1.470,P=0.225).The overall resistance rate of HvKP was not high, but a multi-resistant HvKP resistant to carbapenems was found. The detection rate of multi-resistant HvKP (5.0%) was lower than that of multi-resistant CKP (28.9%), and the difference was statistically significant (χ2=4.984, P=0.026).The resistance rate of HvKP to piperacillin/tazobactam, aztreonam, ciprofloxacin, levofloxacin, ceftazidime, cefepime, tobramycin, minocycline, doxycycline, and compound sulfamethoxazole was lower than that of CKP, and the difference was statistically significant (all P<0.05). In conclusion, most of hypervirulent Klebsiella pneumoniae can form biofilm in this study, but the difference of biofilm-forming ability is not obvious compared with classic Klebsiella pneumoniae. HvKP maintains high sensitivity to commonly used antibacterial drugs, but the drug resistance monitoring of the bacteria cannot be ignored.
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Affiliation(s)
- J Shui
- Clinical Laboratory, Changsha Central Hospital, Changsha 410004, China
| | - L Luo
- Clinical Laboratory, Changsha Central Hospital, Changsha 410004, China
| | - Y G Xiang
- Clinical Laboratory, Changsha Central Hospital, Changsha 410004, China
| | - G M Shi
- Clinical Laboratory, Changsha Central Hospital, Changsha 410004, China
| | - J L Wu
- Clinical Laboratory, Changsha Central Hospital, Changsha 410004, China
| | - J H Pan
- Clinical Laboratory, Changsha Central Hospital, Changsha 410004, China
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12
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Wang X, Luo L, Wang Y, An Z. Effect of Platelet Function Testing Guidance on Clinical Outcomes for Patients with Intracranial Aneurysms Undergoing Endovascular Treatment. AJNR Am J Neuroradiol 2023; 44:928-933. [PMID: 37414457 PMCID: PMC10411848 DOI: 10.3174/ajnr.a7923] [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: 04/11/2023] [Accepted: 06/01/2023] [Indexed: 07/08/2023]
Abstract
BACKGROUND Platelet function testing has been proposed to better adjust individualized antiplatelet treatment for patients undergoing endovascular treatment for intracranial aneurysms. Its clinical significance needs to be comprehensively evaluated. PURPOSE Our aim was to evaluate the impact of platelet function testing-guided versus standard antiplatelet treatment in patients receiving endovascular treatment for intracranial aneurysms. DATA SOURCES PubMed, EMBASE, and the Cochrane Library of clinical trials were searched from inception until March 2023. STUDY SELECTION Eleven studies comprising 6199 patients were included. DATA ANALYSIS ORs with 95% CIs were calculated using random effects models. DATA SYNTHESIS The platelet function testing-guided group was associated with a decreased rate of symptomatic thromboembolic events (OR = 0.57; 95% CI, 0.42-0.76; I2 = 26%). No significant difference was found in asymptomatic thromboembolic events (OR = 1.07; 95% CI, 0.39-2.94; I2 = 48%), hemorrhagic events (OR = 0.71; 95% CI, 0.42-1.19; I2 = 34%), intracranial hemorrhagic events (OR = 0.61; 95% CI, 0.03-10.79; I2 = 62%), morbidity (OR = 0.53; 95% CI, 0.05-5.72; I2 = 86%), and mortality (OR = 1.96; 95% CI, 0.64-5.97; I2 = 0%) between the 2 groups. Subgroup analysis suggested that platelet function testing-guided therapy may contribute to fewer symptomatic thromboembolic events in patients who received stent-assisted coiling (OR = 0.43; 95% CI, 0.18-1.02; I2 = 43%) or a combination of stent-assisted and flow-diverter stent placement (OR = 0.61; 95% CI, 0.36-1.02; I2 = 0%) or who changed from clopidogrel to other thienopyridines (OR = 0.64; 95% CI, 0.40-1.02; I2 = 18%), though the difference did not reach statistical significance. LIMITATIONS Heterogeneous endovascular treatment methods and adjusted antiplatelet regimens were limitations. CONCLUSIONS Platelet function testing-guided antiplatelet strategy significantly reduced the incidence of symptomatic thromboembolic events without any increase in the hemorrhagic events for patients undergoing endovascular treatment for intracranial aneurysms.
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Affiliation(s)
- X Wang
- From the Departments of Pharmacy (X.W., Z.A.)
| | - L Luo
- Department of Pharmacy (L.L.), Beijing Huairou Hospital, Beijing, China
| | - Y Wang
- Neurosurgery (Y.W.), Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Z An
- From the Departments of Pharmacy (X.W., Z.A.)
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13
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Kuang TY, Yin SQ, Dai WH, Luo L, Chen T, Liang XH, Wang RX, Liang HP, Zhu JY. [Effects of enhancing the expression of aryl hydrocarbon receptor in post-traumatic mice macrophages on the inflammatory cytokine level and bactericidal ability]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2023; 39:633-640. [PMID: 37805692 DOI: 10.3760/cma.j.cn501225-20230210-00040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 10/09/2023]
Abstract
Objective: To explore the expression pattern of aryl hydrocarbon receptor (AhR) in mice peritoneal macrophages (PMs) after major trauma and analyze the effects of enhanced AhR expression on the inflammatory cytokine level and bactericidal ability after trauma. Methods: The experimental study method was used. Forty 6-8-week-old male C57BL/6J mice (the same mouse age, sex, and strain below) were divided into control group, post trauma hour (PTH) 2 group, PTH 6 group, and PTH 12 group according to the random number table (the same grouping method below), with 10 mice in each group. Mice in the latter 3 groups were constructed as severe trauma model with fracture+blood loss, while mice in control group were left untreated. The primary PMs (the same cells below) were extracted from the mice in control group, PTH 2 group, PTH 6 group, and PTH 12 group when uninjured or at PTH 2, 6, and 12, respectively. Then the protein and mRNA expressions of AhR were detected by Western blotting and real-time fluorescence quantitative reverse transcription polymerase chain reaction, respectively, and the gene expressions of AhR signaling pathway related molecules were analyzed by transcriptome sequencing. Twenty mice were divided into control group and PTH 6 group, with 10 mice in each group, and the PMs were extracted. The level of ubiquitin of AhR was detected by immunoprecipitation. Twelve mice were divided into dimethyl sulfoxide (DMSO) alone group, PTH 6+DMSO group, MG-132 alone group, and PTH 6+MG-132 group, with 3 mice in each group. After the corresponding treatment, PMs were extracted, and the protein expression of AhR was detected by Western blotting. Twenty mice were constructed as PTH 6 model. Then, the PMs were extracted and divided into empty negative control adenovirus (Ad-NC) group and AhR overexpression adenovirus (Ad-AhR) group. The protein expression of AhR was detected by Western blotting at 36 h after some PMs were transfected with the corresponding adenovirus. The rest cells in Ad-NC group were divided into Ad-NC alone group and Ad-NC+endotoxin/lipopolysaccharide (LPS) group, and the rest cells in Ad-AhR group were divided into Ad-AhR alone group and Ad-AhR+LPS group. The expressions of interleukin-6 (IL-6) and tumor necrosis factor α (TNF-α) in the cell supernatant were detected by enzyme-linked immunosorbent assay at 12 h after the corresponding treatment (n=6). Twenty mice were obtained to extract PMs. The cells were divided into control+Ad-NC group, PTH 6+Ad-NC group, control+Ad-AhR group, and PTH 6+Ad-AhR group, and the intracellular bacterial load was detected by plate spread method after the corresponding treatment (n=6). Data were statistically analyzed with one-way analysis of variance, least significant difference test, analysis of variance for factorial design, and independent sample t test. Results: Compared with 1.16±0.28 of control group, the protein expressions of AhR in PMs in PTH 2 group (0.59±0.14), PTH 6 group (0.72±0.16), and PTH 12 group (0.71±0.17) were all significantly decreased (P<0.05). The overall comparison of the difference of AhR mRNA expression in PMs among control group, PTH 2 group, PTH 6 group, and PTH 12 group showed no statistical significance (P>0.05). The AhR signaling pathway related molecules included AhR, AhR inhibitor, cytochrome P450 family member 1b1, cytochrome P450 family member 11a1, heat shock protein 90, aryl hydrocarbon receptor-interaction protein, and heat shock protein 70 interaction protein. The heat shock protein 90 expression of PMs in PTH 2 group was higher than that in control group, while the expressions of other molecules did not change significantly after trauma. Compared with that in control group, the level of ubiquitin of AhR in PMs in PTH 6 group was increased. Compared with that in DMSO alone group, the protein expression of AhR in PMs in PTH 6+DMSO group was decreased, while that in PMs in MG-132 alone group had no significant change. Compared with that in PTH 6+DMSO group, the protein expression of AhR in PMs in PTH 6+MG-132 group was up-regulated. At transfection hour 36, compared with that in Ad-NC group, the protein expression of AhR in PMs in Ad-AhR group was increased. At treatment hour 12, compared with those in Ad-NC+LPS group, the expressions of IL-6 and TNF-α in PM supernatant of Ad-AhR+LPS group were significantly decreased (with t values of 4.80 and 3.82, respectively, P<0.05). The number of intracellular bacteria of 1×106 PMs in control+Ad-NC group, PTH 6+Ad-NC group, control+Ad-AhR group, and PTH 6+Ad-AhR group was (3.0±1.8), (41.8±10.2), (1.8±1.2), and (24.2±6.3) colony forming unit, respectively. Compared with that in PTH 6+Ad-NC group, the number of intracellular bacteria of PMs in PTH 6+Ad-AhR group was significantly decreased (t=3.61, P<0.05). Conclusions: Ubiquitin degradation of AhR in PMs of mice after major trauma results in decreased protein expression of AhR. Increasing the expression of AhR in post-traumatic macrophages can reduce the expressions of LPS-induced inflammatory cytokines IL-6 and TNF-α, and improve the bactericidal ability of macrophages after trauma.
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Affiliation(s)
- T Y Kuang
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Wound Infection and Drug, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - S Q Yin
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Wound Infection and Drug, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - W H Dai
- Emergency Department of the Second Affiliated Hospital of Hainan Medical University, the Emergency and Critical Care Clinical Medicine Research Center of Hainan, Haikou 570216, China
| | - L Luo
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Wound Infection and Drug, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - T Chen
- The 17th Team of Cadet Brigade, College of Basic Medical Sciences, Army Medical University, Chongqing 400038, China
| | - X H Liang
- The 17th Team of Cadet Brigade, College of Basic Medical Sciences, Army Medical University, Chongqing 400038, China
| | - R X Wang
- Emergency Department of the Second Affiliated Hospital of Hainan Medical University, the Emergency and Critical Care Clinical Medicine Research Center of Hainan, Haikou 570216, China
| | - H P Liang
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Wound Infection and Drug, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - J Y Zhu
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Wound Infection and Drug, Daping Hospital, Army Medical University, Chongqing 400042, China
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14
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Ma J, Yang Z, Huang Z, Li L, Huang J, Chen J, Ni R, Luo L, He J. Rngtt governs biliary-derived liver regeneration initiation by transcriptional regulation of mTORC1 and Dnmt1 in zebrafish. Hepatology 2023; 78:167-178. [PMID: 36724876 DOI: 10.1097/hep.0000000000000186] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 11/23/2022] [Indexed: 02/03/2023]
Abstract
In cases of end-stage liver diseases, the proliferation of existing hepatocytes is compromised, a feature of human chronic liver disease, in which most hepatocytes are dysfunctional. So far, liver transplantation represents the only curative therapeutic solution for advanced liver diseases, and the shortage of donor organs leads to high morbidity and mortality worldwide. The promising treatment is to prompt the biliary epithelial cells (BECs) transdifferentiation. However, the critical factors governing the initiation of BEC-derived liver regeneration are largely unknown. The zebrafish has advantages in large-scale genetic screens to identify the critical factors involved in liver regeneration. Here, we combined N-ethyl-N-nitrosourea screen, positional cloning, transgenic lines, antibody staining, and in situ hybridization methods and identified a liver regeneration defect mutant ( lrd ) using the zebrafish extensive liver injury model. Through positional cloning and genomic sequencing, we mapped the mutation site to rngtt . Loss of rngtt leads to the defects of BEC dedifferentiation, bipotential progenitor cell activation, and cell proliferation in the initiation stage of liver regeneration. The transdifferentiation from BECs to hepatocytes did not occur even at the late stage of liver regeneration. Mechanically, Rngtt transcriptionally regulates the attachment of mRNA cap to mTOR complex 1 (mTORC1) components and dnmt1 to maintain the activation of mTORC1 and DNA methylation in BECs after severe liver injury and prompt BEC to hepatocyte conversion. Furthermore, rptor and dnmt1 mutants displayed the same liver regeneration defects as rngtt mutation. In conclusion, our results suggest Rngtt is a new factor that initiates BEC-derived liver regeneration.
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Affiliation(s)
- Jianlong Ma
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
| | - Zhuolin Yang
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
| | - Zhuofu Huang
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
| | - Linke Li
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
| | - Jingliang Huang
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
| | - Jingying Chen
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
- University of Chinese Academy of Sciences (Chongqing), Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Beibei, Chongqing, China
| | - Rui Ni
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
| | - Lingfei Luo
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
| | - Jianbo He
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
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15
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Wei X, Tan X, Chen Q, Jiang Y, Wu G, Ma X, Fu J, Li Y, Gang K, Yang Q, Ni R, He J, Luo L. Extensive jejunal injury is repaired by migration and transdifferentiation of ileal enterocytes in zebrafish. Cell Rep 2023; 42:112660. [PMID: 37342912 DOI: 10.1016/j.celrep.2023.112660] [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: 10/10/2022] [Revised: 04/07/2023] [Accepted: 06/01/2023] [Indexed: 06/23/2023] Open
Abstract
A major cause of intestinal failure (IF) is intestinal epithelium necrosis and massive loss of enterocytes, especially in the jejunum, the major intestinal segment in charge of nutrient absorption. However, mechanisms underlying jejunal epithelial regeneration after extensive loss of enterocytes remain elusive. Here, we apply a genetic ablation system to induce extensive damage to jejunal enterocytes in zebrafish, mimicking the jejunal epithelium necrosis that causes IF. In response to injury, proliferation and filopodia/lamellipodia drive anterior migration of the ileal enterocytes into the injured jejunum. The migrated fabp6+ ileal enterocytes transdifferentiate into fabp2+ jejunal enterocytes to fulfill the regeneration, consisting of dedifferentiation to precursor status followed by redifferentiation. The dedifferentiation is activated by the IL1β-NFκB axis, whose agonist promotes regeneration. Extensive jejunal epithelial damage is repaired by the migration and transdifferentiation of ileal enterocytes, revealing an intersegmental migration mechanism of intestinal regeneration and providing potential therapeutic targets for IF caused by jejunal epithelium necrosis.
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Affiliation(s)
- Xiangyong Wei
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Xinmiao Tan
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Qi Chen
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Yan Jiang
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Guozhen Wu
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Xue Ma
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Jialong Fu
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Yongyu Li
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Kai Gang
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Qifen Yang
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Rui Ni
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Jianbo He
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Lingfei Luo
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China.
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16
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Luo L, Luo LZ, Lu ZB, Xiao YB. [Efficacy of high-frequency electrotome combined with balloon dilatation and cryotherapy through electronic bronchoscope in the management of lumen occlusion type of tracheobronchial tuberculosis]. Zhonghua Jie He He Hu Xi Za Zhi 2023; 46:587-591. [PMID: 37278173 DOI: 10.3760/cma.j.cn112147-20220928-00786] [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: 06/07/2023]
Abstract
The lumen-occlusion type of tracheobronchial tuberculosis is the most severe type of tracheobronchial stenosis of tuberculosis, often leading to atelectasis or even lung damage in patients. Some patients require surgical resection of the diseased airways and lungs, which can seriously affect their quality of life and even be life-threatening. In order to improve the treatment ability of bronchoscopy physicians for lumen occlusion type of tracheobronchial tuberculosis, this article retrospectively analyzed 30 cases of tracheobronchial tuberculosis with lumen occlusion in Hunan Chest Hospital, and summarized the experience of achieving better results by high-frequency electrotome combined with balloon dilatation and cryotherapy.
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Affiliation(s)
- L Luo
- Endoscopy Center, Hunan Chest Hospital, Changsha 410013, China
| | - L Z Luo
- Endoscopy Center, Hunan Chest Hospital, Changsha 410013, China
| | - Z B Lu
- Endoscopy Center, Hunan Chest Hospital, Changsha 410013, China
| | - Y B Xiao
- Endoscopy Center, Hunan Chest Hospital, Changsha 410013, China
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17
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Luo L, Jiao Y, Yang P, Li Y, Huang WY, Ke XY, Zou DH, Jing HM. [Efficacy and prognostic factors of allogeneic hematopoietic stem cell transplantation treatment for T lymphoblastic leukemia/lymphoma]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:388-394. [PMID: 37550188 PMCID: PMC10440623 DOI: 10.3760/cma.j.issn.0253-2727.2023.05.006] [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] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Indexed: 08/09/2023]
Abstract
Objective: To analyze the efficacy and prognostic factors of allogeneic hematopoietic stem cell transplantation (allo-HSCT) for treating T lymphoblastic leukemia/lymphoma (T-ALL/LBL) . Methods: This study retrospectively evaluated 119 adolescent and adult patients with T-ALL/LBL from January 2006 to January 2020 at Peking University Third Hospital and Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences. Patients were divided into chemotherapy-only, chemotherapy followed by allo-HSCT, and chemotherapy followed by autologous hematopoietic stem cell transplantation (auto-HSCT) groups according to the consolidation regimen, and the 5-year overall survival (OS) and progression-free survival (PFS) rates of each group were compared. Results: Among 113 patients with effective follow-up, 96 (84.9%) patients achieved overall response (ORR), with 79 (69.9%) having complete response (CR) and 17 (15.0%) having partial response (PR), until July 2022. The analysis of the 96 ORR population revealed that patients without transplantation demonstrated poorer outcomes compared with the allo-HSCT group (5-year OS: 11.4% vs 55.6%, P=0.001; 5-year PFS: 8.9% vs 54.2%, P<0.001). No difference was found in 5-year OS and 5-year PFS between the allo-HSCT and auto-HSCT groups (P=0.271, P=0.197). The same results were achieved in the CR population. Allo-HSCT got better 5-year OS (37.5% vs 0) for the 17 PR cases (P=0.064). Different donor sources did not affect 5-year OS, with sibling of 61.1% vs hap-haploidentical of 63.6% vs unrelated donor of 50.0% (P>0.05). No significant difference was found in the treatment response in the early T-cell precursor acute lymphoblastic leukemia/lymphoma (ETP) and non-ETP populations. The ETP group demonstrated lower 5-year OS compared with the non-ETP group in the chemotherapy alone group (0 vs 12.6%, P=0.045), whereas no significant difference was found between the ETP and non-ETP groups in the allo-HSCT group (75.0% vs 62.9%, P=0.852). Multivariate analysis revealed that high serum lactate dehydrogenase level, without transplantation, and no CR after chemotherapy induction were independently associated with inferior outcomes (P<0.05) . Conclusion: Allo-HSCT could be an effective consolidation therapy for adult and adolescent patients with T-ALL/LBL. Different donor sources did not affect survival. Allo-HSCT may overcome the adverse influence of ETP-ALL/LBL on OS.
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Affiliation(s)
- L Luo
- Department of Hematology, Peking University Third Hospital, Beijing 100191, China
| | - Y Jiao
- Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences, National Clinical Research Center for Blood Diseases, State Key Laboratory of Experimental Hematology, Tianjin 300020, China
| | - P Yang
- Department of Hematology, Peking University Third Hospital, Beijing 100191, China
| | - Y Li
- Department of Hematology, Peking University Third Hospital, Beijing 100191, China
| | - W Y Huang
- Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences, National Clinical Research Center for Blood Diseases, State Key Laboratory of Experimental Hematology, Tianjin 300020, China
| | - X Y Ke
- Department of Hematology, Peking University Third Hospital, Beijing 100191, China
| | - D H Zou
- Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences, National Clinical Research Center for Blood Diseases, State Key Laboratory of Experimental Hematology, Tianjin 300020, China
| | - H M Jing
- Department of Hematology, Peking University Third Hospital, Beijing 100191, China
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18
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Chang H, Zhang X, Su H, Cai J, Liu X, Li J, Wang Y, Zhang Z, Zhu M, Zhao L, Zhang S, Mei K, Zhang L, Wang X, Yan H, Luo L, Xu Z, Zeng M. Epidemiological characteristics of pediatric Omicron infection during the outbreak of SARS-CoV-2 infection during March-May in 2022 in Shanghai, China. Epidemiol Infect 2023; 151:e81. [PMID: 37142552 DOI: 10.1017/s0950268823000663] [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: 05/06/2023] Open
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19
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Wang H, Li W, Wang Z, Chen L, Lai G, Jin F, Ke M, Sun J, Zhang J, Xie B, Zhang N, Li W, Zhou H, Wang X, Lin D, Zhou Y, Zhang H, Li D, Wang C, Song X, Wang J, Wu S, Yang J, Zhang L, Tao M, Zeng Y, Zou H, Li H, Song F, Sha Z, Tan Q, Cong M, Shi H, Wang Z, Han X, Luo L, Ma H, Wu G, Wang Z, Liu X, Wu W, Zhang L, Ye Y, Zhu G. Chinese expert consensus on interventional diagnosis and management of acquired digestive-respiratory tract fistulas (second edition). Clin Respir J 2023; 17:343-356. [PMID: 37094822 DOI: 10.1111/crj.13607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 10/15/2022] [Accepted: 03/23/2023] [Indexed: 04/26/2023]
Abstract
Acquired digestive-respiratory tract fistulas occur with abnormal communication between the respiratory tract and digestive tract caused by a variety of benign or malignant diseases, leading to the alimentary canal contents in the respiratory tract. Although various departments have been actively exploring advanced fistula closure techniques, including surgical methods and multimodal therapy, some of which have gotten good clinical effects, there are few large-scale evidence-based medical data to guide clinical diagnosis and treatment. The guidelines update the etiology, classification, pathogenesis, diagnosis, and management of acquired digestive-respiratory tract fistulas. It has been proved that the implantation of the respiratory and digestive stent is the most important and best treatment for acquired digestive-respiratory tract fistulas. The guidelines conduct an in-depth review of the current evidence and introduce in detail the selection of stents, implantation methods, postoperative management and efficacy evaluation.
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Affiliation(s)
- Hongwu Wang
- Center for Respiratory Disease, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Wen Li
- Department of Respiratory Medicine, PLA General Hospital, Beijing, China
| | - Zikai Wang
- Department of Respiratory Medicine, PLA General Hospital, Beijing, China
| | - Liangan Chen
- Department of Respiratory Medicine, PLA General Hospital, Beijing, China
| | - Guoxiang Lai
- Department of Respiratory Medicine, 900 Hospital of the Joint Logistics Support Force of the Chinese People's Liberation Army, Fuzhou, China
| | - Faguang Jin
- Department of Respiratory Medicine, Tangdu Hospital, Air Force Medical University, China
| | - Mingyao Ke
- Department of Respiratory Medicine, Xiamen Second Hospital, Xiamen, China
| | - Jiayuan Sun
- Department of Respiratory Medicine, Shanghai Chest Hospital, Shanghai, China
| | - Jie Zhang
- Department of Respiratory Medicine, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Baosong Xie
- Department of Respiratory Medicine, Fujian Provincial Hospital, Fuzhou, China
| | - Nan Zhang
- Department of Respiratory Medicine, Emergency General Hospital, Beijing, China
| | - Wangping Li
- Department of Respiratory Medicine, Tangdu Hospital, Air Force Medical University, China
| | - Hongmei Zhou
- Department of Respiratory Medicine, Tianyou Hospital Affiliated to Tongji University, Shanghai, China
| | - Xiaoping Wang
- Department of Respiratory Medicine, Shandong Provincial Chest Hospital, Jinan, China
| | - Dianjie Lin
- Department of Respiratory Medicine, Shandong Provincial Hospital, Jinan, China
| | - Yunzhi Zhou
- Department of Respiratory Medicine, Emergency General Hospital, Beijing, China
| | - Huaping Zhang
- Department of Respiratory Medicine, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Dongmei Li
- Department of Respiratory Medicine, Emergency General Hospital, Beijing, China
| | - Changhui Wang
- Department of Respiratory Medicine, Shanghai Tenth People's Hospital, Shanghai, China
| | - Xiaolian Song
- Department of Respiratory Medicine, Shanghai Tenth People's Hospital, Shanghai, China
| | - Juan Wang
- Department of Respiratory Medicine, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Shiman Wu
- Department of Respiratory Medicine, The First Affiliated Hospital of Shanxi Medical University, Taiyuan, China
| | - Junyong Yang
- Department of Respiratory Medicine, Xinjiang Chest Hospital, Wulumuqi, China
| | - Lei Zhang
- Department of Respiratory Medicine, 900 Hospital of the Joint Logistics Support Force of the Chinese People's Liberation Army, Fuzhou, China
| | - Meimei Tao
- Department of Respiratory Medicine, Emergency General Hospital, Beijing, China
| | - Yiming Zeng
- Department of Respiratory Medicine, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Heng Zou
- Center for Respiratory Disease, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Hui Li
- Department of Thoracic Surgery, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing, China
| | - Fujie Song
- Department of Thoracic Surgery, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Zhengbu Sha
- Department of Thoracic Surgery, The Third Affiliated Hospital of Xuzhou Medical University, China
| | - Qiang Tan
- Department of Thoracic Surgery, Shanghai Lung Hospital, Shanghai, China
| | - Minghua Cong
- Department of Oncology, Cancer Hospital of Chinese Academy of Medical Sciences, Beijing, China
| | - Hanping Shi
- Department of Oncology, Beijing Shijitan Hospital Affiliated to Capital Medical University, Beijing, China
| | - Zhina Wang
- Department of Oncology, Emergency General Hospital, Beijing, China
| | - Xinwei Han
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou Medical University, Zhengzhou, China
| | - Lingfei Luo
- Department of Interventional Radiology, Emergency General Hospital, Beijing, China
| | - Hongming Ma
- Department of Interventional Radiology, Emergency General Hospital, Beijing, China
| | - Gang Wu
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou Medical University, Zhengzhou, China
| | - Zhiqiang Wang
- Department of Gastroenterology, PLA General Hospital, Beijing, China
| | - Xiaochuan Liu
- Department of Gastroenterology, Emergency General Hospital, Beijing, China
| | - Weiping Wu
- Center for Respiratory Disease, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Lishan Zhang
- Center for Respiratory Disease, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Yongan Ye
- Department of Gastroenterology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Guangying Zhu
- Department of Radiology, Beijing Cancer Hospital Affiliated to Peking University, Beijing, China
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20
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Wang F, Zhang YT, Su F, Huang CP, Luo L. [Determination of methylmercury in urine by direct mercury analyzer]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2023; 41:304-306. [PMID: 37248187 DOI: 10.3760/cma.j.cn121094-20211110-00556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Objective: To develop asolvent extraction-direct mercury analyzer method for determination of methylmercury in urine. Methods: After the urinehydrolyzesd by hydrobromic acid, methylmercury was extracted by tolueneand reverse-extracted from L-cysteine solution, it was then detectedbydirect mercuryanalyzer. Results: The linear range was 0.2-50.0 μg/L, and the related coefficient was 0.9999. The relative standard deviations (RSD) within the group were 5.04%-6.64%, and the RSD between the group were 5.65%-8.11 %. The average recovery efficiencies were 85.4%-95.5%. The detection limitation was 0.0482 μg/L and the quantification concentrations was 0.1607 μg/L. Conclusion: The method, which has low detection limit, high sensitivity, easy to operate, is stability for the determination of methylmercury in urine.
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Affiliation(s)
- F Wang
- Department of Chemical Laboratory, Longhua District Center for Disease Control and Prevention, Shenzhen 518109, China
| | - Y T Zhang
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - F Su
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - C P Huang
- Department of Chemical Laboratory, Longhua District Center for Disease Control and Prevention, Shenzhen 518109, China
| | - L Luo
- Department of Chemical Laboratory, Longhua District Center for Disease Control and Prevention, Shenzhen 518109, China
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21
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Xiao C, Hou J, Wang F, Song Y, Zheng J, Luo L, Wang J, Ding W, Zhu X, Xiong JW. Endothelial Brg1 fine-tunes Notch signaling during zebrafish heart regeneration. NPJ Regen Med 2023; 8:21. [PMID: 37029137 PMCID: PMC10082087 DOI: 10.1038/s41536-023-00293-4] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 03/17/2023] [Indexed: 04/09/2023] Open
Abstract
Myocardial Brg1 is essential for heart regeneration in zebrafish, but it remains unknown whether and how endothelial Brg1 plays a role in heart regeneration. Here, we found that both brg1 mRNA and protein were induced in cardiac endothelial cells after ventricular resection and endothelium-specific overexpression of dominant-negative Xenopus Brg1 (dn-xbrg1) inhibited myocardial proliferation and heart regeneration and increased cardiac fibrosis. RNA-seq and ChIP-seq analysis revealed that endothelium-specific overexpression of dn-xbrg1 changed the levels of H3K4me3 modifications in the promoter regions of the zebrafish genome and induced abnormal activation of Notch family genes upon injury. Mechanistically, Brg1 interacted with lysine demethylase 7aa (Kdm7aa) to fine-tune the level of H3K4me3 within the promoter regions of Notch family genes and thus regulated notch gene transcription. Together, this work demonstrates that the Brg1-Kdm7aa-Notch axis in cardiac endothelial cells, including the endocardium, regulates myocardial proliferation and regeneration via modulating the H3K4me3 of the notch promoters in zebrafish.
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Affiliation(s)
- Chenglu Xiao
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, College of Future Technology, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University, 100871, Beijing, China
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, 100193, Beijing, China
| | - Junjie Hou
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, College of Future Technology, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University, 100871, Beijing, China
| | - Fang Wang
- College of Pharmaceutical Science, Zhejiang University of Technology, 310014, Hangzhou, China
| | - Yabing Song
- School of Life Sciences, Tsinghua University, 100084, Beijing, China
| | - Jiyuan Zheng
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, College of Future Technology, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University, 100871, Beijing, China
| | - Lingfei Luo
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, 400715, Chongqing, China
| | - Jianbin Wang
- School of Life Sciences, Tsinghua University, 100084, Beijing, China
| | - Wanqiu Ding
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, College of Future Technology, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University, 100871, Beijing, China.
| | - Xiaojun Zhu
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, College of Future Technology, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University, 100871, Beijing, China.
| | - Jing-Wei Xiong
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, College of Future Technology, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University, 100871, Beijing, China.
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22
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Song J, Ma J, Liu X, Huang Z, Li L, Li L, Luo L, Ni R, He J. The MRN complex maintains the biliary-derived hepatocytes in liver regeneration through ATR-Chk1 pathway. NPJ Regen Med 2023; 8:20. [PMID: 37024481 PMCID: PMC10079969 DOI: 10.1038/s41536-023-00294-3] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Accepted: 03/23/2023] [Indexed: 04/08/2023] Open
Abstract
When the proliferation of residual hepatocytes is prohibited, biliary epithelial cells (BECs) transdifferentiate into nascent hepatocytes to accomplish liver regeneration. Despite significant interest in transdifferentiation, little is known about the maintenance of nascent hepatocytes in post-injured environments. Here, we perform an N-ethyl-N-nitrosourea (ENU) forward genetic screen and identify a mutant containing a nonsense mutation in the gene nibrin (nbn), which encodes a component of the Mre11-Rad50-Nbn (MRN) complex that activates DNA damage response (DDR). The regenerated hepatocytes cannot be maintained and exhibit apoptosis in the mutant. Mechanistically, the nbn mutation results in the abrogation of ATR-Chk1 signaling and accumulations of DNA damage in nascent hepatocytes, which eventually induces p53-mediated apoptosis. Furthermore, loss of rad50 or mre11a shows similar phenotypes. This study reveals that the activation of DDR by the MRN complex is essential for the survival of BEC-derived hepatocytes, addressing how to maintain nascent hepatocytes in the post-injured environments.
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Affiliation(s)
- Jingmei Song
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
| | - Jianlong Ma
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
| | - Xing Liu
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
| | - Zhuofu Huang
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
| | - Lianghui Li
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
| | - Linke Li
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
| | - Lingfei Luo
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
| | - Rui Ni
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China.
| | - Jianbo He
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China.
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23
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Luo L, Roy S, Li L, Ma M. Polycystic kidney disease: novel insights into polycystin function. Trends Mol Med 2023; 29:268-281. [PMID: 36805211 DOI: 10.1016/j.molmed.2023.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Revised: 01/18/2023] [Accepted: 01/24/2023] [Indexed: 02/17/2023]
Abstract
Autosomal dominant polycystic kidney disease (ADPKD) is a life-threatening monogenic disease caused by mutations in PKD1 and PKD2 that encode polycystin 1 (PC1) and polycystin 2 (PC2). PC1/2 localize to cilia of renal epithelial cells, and their function is believed to embody an inhibitory activity that suppresses the cilia-dependent cyst activation (CDCA) signal. Consequently, PC deficiency results in activation of CDCA and stimulates cyst growth. Recently, re-expression of PCs in established cysts has been shown to reverse PKD. Thus, the mode of action of PCs resembles a 'counterbalance in cruise control' to maintain lumen diameter within a designated range. Herein we review recent studies that point to novel arenas for future PC research with therapeutic potential for ADPKD.
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Affiliation(s)
- Lingfei Luo
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, 400715, China
| | - Sudipto Roy
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Proteos, 61 Biopolis Drive, Singapore, 138673, Singapore; Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, Singapore, 119288, Singapore; Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore, 117543, Singapore
| | - Li Li
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, 400715, China; Research Center of Stem cells and Ageing, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China
| | - Ming Ma
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, 400715, China.
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24
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Ge J, Guo X, Zhao W, Zhang R, Bian Q, Luo L, Linlin X, Yao X. EVALUATION OF PRE-ABLATION NLR AND LMR AS PREDICTORS OF DISTANT METASTASES IN PATIENTS WITH DIFFERENTIATED THYROID CANCER. Acta Endocrinol (Buchar) 2023; 19:215-220. [PMID: 37908873 PMCID: PMC10614579 DOI: 10.4183/aeb.2023.215] [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] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Objective This research aim was to evaluates the role of the pre-ablation neutrophil-to-lymphocyte ratio (NLR) and lymphocyte-to-monocyte ratio (LMR) as predictors of distant metastases in patients with differentiated thyroid cancer (DTC). Methods A retrospective analysis was given to 140 patients with DTC who received 131I remnant ablation after surgery. The patients were divided into two groups based on the existence of distant metastasis. Results The two groups showed no significant difference in age, gender, WBCs, neutrophils, monocytes, eosinophils, basophils and whether the tumor was multifocal. In the univariate analysis, significant differences were found in tumor size (p=0.021), lymphocyte (p=0.012), NLR (p=0.027), and LMR (p=0.007). According to the ROC curves, NLR had an AUC of 0.612 ± 0.097 with a cut-off value of 1.845, sensitivity of 60.0%, and specificity of 66.2% (p=0.027). LMR had an AUC of 0.638 ± 0.095 with a cut-off value of 4.630, sensitivity of 84.6%, and specificity of 35.4% (p=0.007). In the multivariate analysis, larger tumor size (OR=5.246, 95% CI 1.269-10.907, p=0.009) and higher NLR (OR=2.087, 95% CI 0.977-4.459, p=0.034) were statistically significant for distant metastases. Conclusion This research reveals that pre-ablation NLR and tumor size are significantly statistically correlated with distant metastases in patients with DTC.
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Affiliation(s)
- J. Ge
- The First Affiliated Hospital of USTC - Department of Nuclear Medicine, Hefei, Anhui, China
| | - X. Guo
- The First Affiliated Hospital of USTC - Department of Nuclear Medicine, Hefei, Anhui, China
| | - W. Zhao
- The First Affiliated Hospital of USTC - Department of Nuclear Medicine, Hefei, Anhui, China
| | - R. Zhang
- The First Affiliated Hospital of USTC - Department of Nuclear Medicine, Hefei, Anhui, China
| | - Q. Bian
- The First Affiliated Hospital of USTC - Department of Nuclear Medicine, Hefei, Anhui, China
| | - L. Luo
- The First Affiliated Hospital of USTC - Department of Nuclear Medicine, Hefei, Anhui, China
| | - X. Linlin
- The First Affiliated Hospital of USTC - Department of Nuclear Medicine, Hefei, Anhui, China
| | - X. Yao
- The First Affiliated Hospital of USTC - Department of Nuclear Medicine, Hefei, Anhui, China
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25
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Liu H, Yue Y, Xu Z, Guo L, Wu C, Zhang D, Luo L, Huang W, Chen H, Yang D. mTORC1 signaling pathway regulates tooth repair. Int J Oral Sci 2023; 15:14. [PMID: 36927863 PMCID: PMC10020452 DOI: 10.1038/s41368-023-00218-3] [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] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 01/12/2023] [Accepted: 01/26/2023] [Indexed: 03/18/2023] Open
Abstract
Tooth germ injury can lead to abnormal tooth development and even tooth loss, affecting various aspects of the stomatognathic system including form, function, and appearance. However, the research about tooth germ injury model on cellular and molecule mechanism of tooth germ repair is still very limited. Therefore, it is of great importance for the prevention and treatment of tooth germ injury to study the important mechanism of tooth germ repair by a tooth germ injury model. Here, we constructed a Tg(dlx2b:Dendra2-NTR) transgenic line that labeled tooth germ specifically. Taking advantage of the NTR/Mtz system, the dlx2b+ tooth germ cells were depleted by Mtz effectively. The process of tooth germ repair was evaluated by antibody staining, in situ hybridization, EdU staining and alizarin red staining. The severely injured tooth germ was repaired in several days after Mtz treatment was stopped. In the early stage of tooth germ repair, the expression of phosphorylated 4E-BP1 was increased, indicating that mTORC1 is activated. Inhibition of mTORC1 signaling in vitro or knockdown of mTORC1 signaling in vivo could inhibit the repair of injured tooth germ. Normally, mouse incisors were repaired after damage, but inhibition/promotion of mTORC1 signaling inhibited/promoted this repair progress. Overall, we are the first to construct a stable and repeatable repair model of severe tooth germ injury, and our results reveal that mTORC1 signaling plays a crucial role during tooth germ repair, providing a potential target for clinical treatment of tooth germ injury.
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Affiliation(s)
- Honghong Liu
- Department of Endodontics, Stomatological Hospital of Chongqing Medical University, Chongqing, China.,Stomatological Hospital of Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China.,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Yu Yue
- Department of Endodontics, Stomatological Hospital of Chongqing Medical University, Chongqing, China.,Stomatological Hospital of Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China.,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Zhiyun Xu
- Department of Endodontics, Stomatological Hospital of Chongqing Medical University, Chongqing, China.,Stomatological Hospital of Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China.,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Li Guo
- Department of Endodontics, Stomatological Hospital of Chongqing Medical University, Chongqing, China.,Stomatological Hospital of Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China.,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Chuan Wu
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Chongqing, China
| | - Da Zhang
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Chongqing, China
| | - Lingfei Luo
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Chongqing, China
| | - Wenming Huang
- Department of Endodontics, Stomatological Hospital of Chongqing Medical University, Chongqing, China.,Stomatological Hospital of Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China.,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Hong Chen
- Department of Endodontics, Stomatological Hospital of Chongqing Medical University, Chongqing, China.,Stomatological Hospital of Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China.,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Deqin Yang
- Department of Endodontics, Stomatological Hospital of Chongqing Medical University, Chongqing, China. .,Stomatological Hospital of Chongqing Medical University, Chongqing, China. .,Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China. .,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China.
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Yu J, Ma J, Li Y, Zhou Y, Luo L, Yang Y. Pax4-Ghrelin mediates the conversion of pancreatic ɛ-cells to β-cells after extreme β-cell loss in zebrafish. Development 2023; 150:297032. [PMID: 36897579 PMCID: PMC10112926 DOI: 10.1242/dev.201306] [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] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 02/25/2023] [Indexed: 03/11/2023]
Abstract
Pancreatic ɛ-cells producing ghrelin are one type of endocrine cell found in islets, which have been shown to influence other intra-islet cells, especially in regulating the function of β cells. However, the role of such cells during β-cell regeneration is heretofore unknown. Here, using a zebrafish nitroreductase (NTR)-mediated β-cells ablation model, we uncover that ghrelin-positive ɛ-cells in the pancreas act as contributors to neogenic β-cells after extreme β-cell loss. Further studies show the overexpression of ghrelin or the expansion of ɛ-cells potentiates β-cell regeneration. Lineage tracing confirms a proportion of embryonic ɛ-cells can transdifferentiate to β-cells, and the deletion of Pax4 enhances this transdifferentiation of ɛ-cells to β-cells. Mechanistically, Pax4 binds to the ghrelin regulatory region and represses its transcription. Thus deletion of Pax4 derepresses ghrelin expression and causes producing more ghrelin-positive cells, enhancing the transdifferentiation of ɛ-cells to β-cells and consequent potentiating β-cells regeneration. Our findings reveal a novel role of ɛ-cells during zebrafish β-cell regeneration, indicating Pax4 regulates ghrelin transcription and mediates the conversion of embryonic ɛ-cells to β-cells after extreme β-cell loss.
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Affiliation(s)
- Junqin Yu
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, 400715 Chongqing, China
| | - Jianlong Ma
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, 400715 Chongqing, China
| | - Yanfeng Li
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, 400715 Chongqing, China
| | - Yang Zhou
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, 400715 Chongqing, China
| | - Lingfei Luo
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, 400715 Chongqing, China
| | - Yun Yang
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, 400715 Chongqing, China
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Luo L, Yao XB, Zheng SJ, Yang WL. [A family study of the compound heterozygous mutation of the UGT1A1 gene causing Crigler-Najjar syndrome type II]. Zhonghua Gan Zang Bing Za Zhi 2023; 31:168-173. [PMID: 37137832 DOI: 10.3760/cma.j.cn501113-20211124-00580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Objective: To investigate the family gene features in Crigler-Najjar syndrome (CNS) type II. Methods: The UGT1A1 gene and related bilirubin metabolism genes were comprehensively analysed in a CNS-II family (3 CNS-II, 1 Gilbert syndrome, and 8 normal subjects). The genetics basis of CNS-II were investigated from the perspective of family analysis. Results: In three cases, compound heterozygous mutations at three sites of the UGT1A1 gene (c.-3279T > G, c.211G > A and c.1456T > G) caused CNS-II. Gilbert syndrome and CNS-II were not significantly associated with distribution or diversity loci. Conclusion: The compound heterozygous pathogenic mutations (c.-3279T > G, c.211G > A, and c.1456T > G) at three loci of the UGT1A1 gene may be the feature of the newly discovered CNS-II family genes based on the CNS-II family study.
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Affiliation(s)
- L Luo
- Department of Infectious Diseases, the Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - X B Yao
- Department of Infectious Diseases, the Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - S J Zheng
- First Department of Hepatology Center, Beijing You'an Hospital, Capital Medical University, Beijing 100069, China
| | - W L Yang
- Department of Infectious Diseases, the Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
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28
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Zhou L, Luo L, Ying DM, Xiang JG, Xiong X, Gao CY, Sun QL, Chen ZQ. [Observation on the clinical outcomes of continued pregnancy following cesarean scar pregnancy in 55 women]. Zhonghua Fu Chan Ke Za Zhi 2023; 58:37-43. [PMID: 36720613 DOI: 10.3760/cma.j.cn112141-20220817-00515] [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: 02/02/2023]
Abstract
Objective: To observe the clinical outcomes of continued pregnancy in pregnant women with cesarean scar pregnancy (CSP). Methods: A retrospective analysis was performed on the pregnancy outcomes of 55 pregnant women who were diagnosed with CSP at the Second Affiliated Hospital of Army Medical University during the first trimester of pregnancy from August 1st, 2018 to October 31st, 2021 and strongly requested to continue the pregnancy. Results: Of the 55 pregnant women, 15 terminated the pregnancy in the first trimester, 1 underwent hysterotomy at 23 weeks of gestation due to cervical dilation, and 39 (71%, 39/55) continued pregnancy to the third trimester achieving live births via cesarean section. The gestational age of the 39 pregnant women delivered by cesarean section was 35+6 weeks (range: 28+5-39+2 weeks), of whom 7 cases at 28+5-33+6 weeks, 20 cases at 34-36+6 weeks, and 12 cases at 37-39+2 weeks. The results of pathological examination were normal placenta in 3 cases (8%, 3/39), placenta creta in 4 cases (10%, 4/39), placenta increta in 9 cases (23%, 9/39) and placenta percreta in 23 cases (59%, 23/39). Among the 36 pregnant women who were pathologically confirmed as placenta accreta spectrum disorders (PAS) after surgery, the last prenatal ultrasonography showed placenta previa in 27 cases (75%, 27/36) and not observed placenta previa in 9 cases. The median intraoperative blood loss, autologous blood transfusion, and allogeneic suspended red blood cell infusion of 39 pregnant women during cesarean section were 1 000 ml (300-3 500 ml), 300 ml (0-2 000 ml) and 400 ml (0-2 400 ml), respectively. The uterine preservation rate was 100% (39/39), and only 1 case received cystostomy due to intracystic hemorrhage. The birth weight of the newborn was 2 580 g (1 350-3 800 g), and 1 case of mild asphyxia. Conclusions: Pregnant women with CSP who continue pregnancy under close monitoring after adequate ultrasound evaluation and doctor-patient communication could achieve better maternal and infant outcomes, but pregnant women with CSP are highly likely to continue pregnancy and develop into PAS. Effective hemostasis means and multidisciplinary team cooperation are needed in perinatal period for ensuring maternal and fetal safety.
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Affiliation(s)
- L Zhou
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Army Medical University, Chongqing 400037, China
| | - L Luo
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Army Medical University, Chongqing 400037, China
| | - D M Ying
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Army Medical University, Chongqing 400037, China
| | - J G Xiang
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Army Medical University, Chongqing 400037, China
| | - X Xiong
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Army Medical University, Chongqing 400037, China
| | - C Y Gao
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Army Medical University, Chongqing 400037, China
| | - Q L Sun
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Army Medical University, Chongqing 400037, China
| | - Z Q Chen
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Army Medical University, Chongqing 400037, China
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He J, Zhao F, Chen B, Cui N, Li Z, Qin J, Luo L, Zhao C, Li L. Alterations in immune cell heterogeneities in the brain of aged zebrafish using single-cell resolution. Sci China Life Sci 2023:10.1007/s11427-021-2223-4. [PMID: 36607494 DOI: 10.1007/s11427-021-2223-4] [Citation(s) in RCA: 1] [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] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 08/25/2022] [Indexed: 01/07/2023]
Abstract
Immunocytes, including the microglia, are crucial in the neurodegenerative process in old people. However, the understanding of regarding microglia heterogeneity and other involved immunocytes remains elusive. We analyzed 26,456 immunocytes from 12-and 26-month-old zebrafish brains at single-cell resolution. Microglia and T lymphocytes were detected in the brain at both time points. Two types of microglia were annotated, namely, ac+ microglia and xr+ microglia, which were clustered into subsets 1, 2, 3, 4, 5, and subsets 6, 7, 8, 9, respectively. Diversified microglia predominated the adult brains and cooperated with T cells to perform the functions of immune response and neuronal nutrition. We validated the specific microglia markers. The novel transgenic lines, Tg(lgals3bpb:eGFP) and Tg(apoc1:eGFP), were created, which faithfully labeled ac+ microglia and served as valuable labeling tools. However, the microglia population reduced while T cells of six subtypes intriguingly increased to serve as the primary immune cells in aged brains. Unlike in 12-month-old brains, T cells, together with microglia, exhibited a coordinated signature of inflammation in the 26-month-old brains. Our findings revealed the immunocytes atlas in aged zebrafish brains. It implied the involvement of microglia and T cells in the progression of neurodegeneration in aging.
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Affiliation(s)
- Jiangyong He
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University, Chongqing, 400715, China.,Research Center of Stem cells and Aging, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China
| | - Fangying Zhao
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University, Chongqing, 400715, China
| | - Bingyue Chen
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University, Chongqing, 400715, China
| | - Nianfei Cui
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University, Chongqing, 400715, China
| | - Zhifan Li
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University, Chongqing, 400715, China
| | - Jie Qin
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University, Chongqing, 400715, China
| | - Lingfei Luo
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University, Chongqing, 400715, China
| | - Congjian Zhao
- Chongqing Engineering Research Center of Medical Electronics and Information Technology, School of Bioinformatics, Chongqing University of Posts and Telecommunications, Chongqing, 400065, China.
| | - Li Li
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University, Chongqing, 400715, China. .,Research Center of Stem cells and Aging, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China.
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30
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Ma J, Gu Y, Liu J, Song J, Zhou T, Jiang M, Wen Y, Guo X, Zhou Z, Sha J, He J, Hu Z, Luo L, Liu M. Functional screening of congenital heart disease risk loci identifies 5 genes essential for heart development in zebrafish. Cell Mol Life Sci 2022; 80:19. [PMID: 36574072 PMCID: PMC11073085 DOI: 10.1007/s00018-022-04669-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 07/02/2022] [Revised: 12/09/2022] [Accepted: 12/10/2022] [Indexed: 12/28/2022]
Abstract
Congenital heart disease (CHD) is the most common birth defect worldwide and a main cause of perinatal and infant mortality. Our previous genome-wide association study identified 53 SNPs that associated with CHD in the Han Chinese population. Here, we performed functional screening of 27 orthologous genes in zebrafish using injection of antisense morpholino oligos. From this screen, 5 genes were identified as essential for heart development, including iqgap2, ptprt, ptpn22, tbck and maml3. Presumptive roles of the novel CHD-related genes include heart chamber formation (iqgap2 and ptprt) and atrioventricular canal formation (ptpn22 and tbck). While deficiency of maml3 led to defective cardiac trabeculation and consequent heart failure in zebrafish embryos. Furthermore, we found that maml3 mutants showed decreased cardiomyocyte proliferation which caused a reduction in cardiac trabeculae due to inhibition of Notch signaling. Together, our study identifies 5 novel CHD-related genes that are essential for heart development in zebrafish and first demonstrates that maml3 is required for Notch signaling in vivo.
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Affiliation(s)
- Jianlong Ma
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Chongqing, 400715, China
| | - Yayun Gu
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211100, China
- Department of Epidemiology and Biostatistics, School of Public Health, Nanjing Medical University, Nanjing, 211100, China
| | - Juanjuan Liu
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211100, China
- Department of Histology and Embryology, Nanjing Medical University, Nanjing, 211100, China
| | - Jingmei Song
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Chongqing, 400715, China
| | - Tao Zhou
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211100, China
- Department of Histology and Embryology, Nanjing Medical University, Nanjing, 211100, China
| | - Min Jiang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211100, China
- Department of Histology and Embryology, Nanjing Medical University, Nanjing, 211100, China
| | - Yang Wen
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211100, China
- Department of Epidemiology and Biostatistics, School of Public Health, Nanjing Medical University, Nanjing, 211100, China
| | - Xuejiang Guo
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211100, China
- Department of Histology and Embryology, Nanjing Medical University, Nanjing, 211100, China
| | - Zuomin Zhou
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211100, China
- Department of Histology and Embryology, Nanjing Medical University, Nanjing, 211100, China
| | - Jiahao Sha
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211100, China
- Department of Histology and Embryology, Nanjing Medical University, Nanjing, 211100, China
| | - Jianbo He
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Chongqing, 400715, China
| | - Zhibin Hu
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211100, China
- Department of Epidemiology and Biostatistics, School of Public Health, Nanjing Medical University, Nanjing, 211100, China
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, 211100, China
| | - Lingfei Luo
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Chongqing, 400715, China.
| | - Mingxi Liu
- State Key Laboratory of Reproductive Medicine, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Taizhou School of Clinical Medicine, Nanjing Medical University, Nanjing, 211100, China.
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31
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Jiang Z, Huang L, Zhao J, Li Y, Ma J, Ni R, Yang Q, Luo L, Yang Y, Chen J. GoldenFish: a rapid and efficient system to customize constructs for zebrafish transgenesis. J Mol Cell Biol 2022; 14:6960678. [PMID: 36565719 PMCID: PMC10120350 DOI: 10.1093/jmcb/mjac075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 10/21/2022] [Accepted: 12/23/2022] [Indexed: 12/26/2022] Open
Affiliation(s)
- Zhanmei Jiang
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Chongqing 400715, China
| | - Lirong Huang
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Chongqing 400715, China
| | - Jieqiong Zhao
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Chongqing 400715, China
| | - Yanfeng Li
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Chongqing 400715, China
| | - Jianlong Ma
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Chongqing 400715, China
| | - Rui Ni
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Chongqing 400715, China
| | - Qifen Yang
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Chongqing 400715, China
| | - Lingfei Luo
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Chongqing 400715, China
| | - Yun Yang
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Chongqing 400715, China
| | - Jingying Chen
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Chongqing 400715, China.,University of Chinese Academy of Sciences (Chongqing), Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
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32
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Luo L, Pasquali L, Srivastava A, Pivarcsi A, Sonkoly E. 318 The long non-coding RNA LINC00958 is overexpressed in psoriasis epidermis and induces keratinocyte proliferation. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.09.331] [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: 11/19/2022]
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33
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Kim JH, Li L, Zhang Z, Hayer K, Xian L, Luo L, Cope L, Tikhonenko A, Resar L. OP04 High Mobility Group A1 (HMGA1) epigenetic regulators induce ETV5 networks in relapsed B-cell leukemia and provide novel therapeutic targets. ESMO Open 2022. [DOI: 10.1016/j.esmoop.2022.100680] [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: 12/31/2022] Open
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34
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Luo L, Srivastava A, Freisenhausen J, Saha P, Khera N, Prieux R, Monteiro A, Pivarcsi A, Sonkoly E. 346 MiR-149: a microRNA regulating keratinocyte immune responses in psoriasis. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.09.359] [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: 11/19/2022]
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35
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Freisenhausen J, Khera N, Gao C, Srivastava A, Luo L, Pivarcsi A, Sonkoly E. 375 miR-484: a microRNA with altered subcellular localization in psoriasis keratinocytes. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.09.388] [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: 11/19/2022]
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36
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Huang Y, Zheng ZW, Chen C, Li K, Chen SY, Chen YY, Jing QL, Ma Y, Luo L, Yang ZC, Zhang ZB. [Epidemiological characteristics of two local COVID-19 outbreaks caused by 2019-nCoV Omicron variant in Guangzhou, China]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:1705-1710. [PMID: 36444451 DOI: 10.3760/cma.j.cn112338-20220523-00450] [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: 06/16/2023]
Abstract
Objective: To understand the epidemiological characteristics of two local COVID-19 outbreaks caused by 2019-nCoV Omicron variant in Guangzhou, such as incubation period, serial interval, basic reproductive number (R0) and the influence of gathering places on R0, and provide evidence for the prevention and control of Omicron variant infection. Methods: The data of daily confirmed cases of Omicron variant infection from April 8 to May 8, 2022 in two COVID-19 outbreaks in Guangzhou were collected for model fitting. Weibull, Gamma and lognormal distribution were used to estimate incubation period and serial interval. Exponential growth method and the maximum likelihood estimation were used to estimate R0. Results: The median of incubation period was 2.94 (95%CI: 2.52-3.38) days and median of serial interval was 3.32 (95%CI: 2.89-3.81) days. The estimated R0 in small-size place was 4.40 (95%CI: 3.95-4.85), while the estimated R0 at airport was 11.35 (95%CI: 11.02-11.67). Conclusion: The incubation period of Omicron variant in two local COVID-19 outbreaks in Guangzhou is significantly shorter than that of delta variant. The higher the gathering degree in a place, the larger the R0. Due to its rapid transmission, COVID-19 epidemic is prone to occur. Therefore, the COVID-19 prevention and control strategy should be dynamically adjusted in time.
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Affiliation(s)
- Y Huang
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China Institute of Public Health, Guangzhou Medical University, Guangzhou 510440, China
| | - Z W Zheng
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China
| | - C Chen
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China
| | - K Li
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China
| | - S Y Chen
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Y Y Chen
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Q L Jing
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China Institute of Public Health, Guangzhou Medical University, Guangzhou 510440, China
| | - Y Ma
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China Institute of Public Health, Guangzhou Medical University, Guangzhou 510440, China
| | - L Luo
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China Institute of Public Health, Guangzhou Medical University, Guangzhou 510440, China
| | - Z C Yang
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Z B Zhang
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China Institute of Public Health, Guangzhou Medical University, Guangzhou 510440, China
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Crants S, Olson S, Li Y, Bejan C, Bick A, Luo L. Radiation Therapy and Subsequent Clonal Hematopoiesis: An Analysis of a Biorepository of 89,782 Patients. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1798] [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: 11/28/2022]
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38
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Li JM, Guan YH, Li JP, Luo L, Yang F, Chen XB. [Discussion on relevant issues of Technical Specifications for Occupational Health Surveillance (GBZ 188-2014)]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2022; 40:787-789. [PMID: 36348565 DOI: 10.3760/cma.j.cn121094-20211008-00483] [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] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Technical Specifications for Occupational Health Surveillance (GBZ 188-2014) is an important basis for judging suspected occupational diseases and occupational contraindications. There are crossing over or overlap between occupational contraindications and diagnostic criteria of poisoning damage. Occupational contraindications have different meanings with the degree and range of common diseases or symptoms and the frequency of physical examination during employment conflicts with the current standard. Based on the practice of occupational health examination in a large population, the present study analyzed relevant articles and put forward some suggestions for revision, in combination with clinical medicine, occupational health standards, and diagnostic standards of occupational diseases. The modification could provide a reference for the revision of Technical Specifications for Occupational Health Surveillance and the practice of occupational health examination.
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Affiliation(s)
- J M Li
- The Department of Occupational Health Management, Changsha Centre for Disease Control and Prevention, Changsha 410003, China
| | - Y H Guan
- The Department of Occupational Health Management, Changsha Centre for Disease Control and Prevention, Changsha 410003, China
| | - J P Li
- The Department of Occupational Health Management, Changsha Centre for Disease Control and Prevention, Changsha 410003, China
| | - L Luo
- The Department of Occupational Health Management, Changsha Centre for Disease Control and Prevention, Changsha 410003, China
| | - F Yang
- The Department of Occupational Health Management, Changsha Centre for Disease Control and Prevention, Changsha 410003, China
| | - X B Chen
- The Department of Occupational Health Management, Changsha Centre for Disease Control and Prevention, Changsha 410003, China
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Jin B, Xie L, Zhan D, Zhou L, Feng Z, He J, Qin J, Zhao C, Luo L, Li L. Nrf2 dictates the neuronal survival and differentiation of embryonic zebrafish harboring compromised alanyl-tRNA synthetase. Development 2022; 149:276217. [DOI: 10.1242/dev.200342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 07/28/2022] [Indexed: 11/20/2022]
Abstract
ABSTRACT
tRNA synthetase deficiency leads to unfolded protein responses in neuronal disorders; however, its function in embryonic neurogenesis remains unclear. This study identified an aars1cq71/cq71 mutant zebrafish allele that showed increased neuronal apoptosis and compromised neurogenesis. aars1 transcripts were highly expressed in primary neural progenitor cells, and their aberration resulted in protein overloading and activated Perk. nfe2l2b, a paralog of mammalian Nfe2l2, which encodes Nrf2, is a pivotal executor of Perk signaling that regulates neuronal phenotypes in aars1cq71/cq71 mutants. Interference of nfe2l2b in nfe2l2bΔ1/Δ1 mutants did not affect global larval development. However, aars1cq71/cq71;nfe2l2bΔ1/Δ1 mutant embryos exhibited increased neuronal cell survival and neurogenesis compared with their aars1cq71/cq71 siblings. nfe2l2b was harnessed by Perk at two levels. Its transcript was regulated by Chop, an implementer of Perk. It was also phosphorylated by Perk. Both pathways synergistically assured the nuclear functions of nfe2l2b to control cell survival by targeting p53. Our study extends the understanding of tRNA synthetase in neurogenesis and implies that Nrf2 is a cue to mitigate neurodegenerative pathogenesis.
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Affiliation(s)
- Binbin Jin
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University 1 , Chongqing 400715 , China
| | - Liqin Xie
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University 1 , Chongqing 400715 , China
| | - Dan Zhan
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University 1 , Chongqing 400715 , China
| | - Luping Zhou
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University 1 , Chongqing 400715 , China
| | - Zhi Feng
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University 1 , Chongqing 400715 , China
| | - Jiangyong He
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University 1 , Chongqing 400715 , China
| | - Jie Qin
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University 1 , Chongqing 400715 , China
| | - Congjian Zhao
- Chongqing Engineering Research Center of Medical Electronics and Information Technology, School of Biomedical Engineering and informatics, Chongqing University of Posts and Telecommunications 2 , Chongqing 40065 , China
| | - Lingfei Luo
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University 1 , Chongqing 400715 , China
| | - Li Li
- Research Center of Stem Cells and Ageing, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences 3 , Chongqing 400714 , China
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Luo L, Tong J, Li L, Jin M. [Xenon post-conditioning protects against spinal cord ischemia-reperfusion injury in rats by downregulating mTOR pathway and inhibiting endoplasmic reticulum stress-induced neuronal apoptosis]. Nan Fang Yi Ke Da Xue Xue Bao 2022; 42:1256-1262. [PMID: 36073227 DOI: 10.12122/j.issn.1673-4254.2022.08.20] [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 The purpose of this study was to determine whether xenon post-conditioning affects mTOR signaling as well as endoplasmic reticulum stress (ERS)-apoptosis pathway in rats with spinal cord ischemia/reperfusion injury. METHODS Fifty male rats were randomized equally into sham-operated group (Sham group), I/R model group (I/R group), I/R model+ xenon post-conditioning group (Xe group), I/R model+rapamycin (a mTOR signaling pathway inhibitor) treatment group (I/R+ Rapa group), and I/R model + xenon post- conditioning with rapamycin treatment group (Xe + Rapa group).. In the latter 4 groups, SCIRI was induced by clamping the abdominal aorta for 85 min followed by reperfusion for 4 h. Rapamycin (or vehicle) was administered by daily intraperitoneal injection (4 mg/kg) for 3 days before SCIRI, and xenon post-conditioning by inhalation of 1∶1 mixture of xenon and oxygen for 1 h at 1 h after initiation of reperfusion; the rats without xenon post-conditioning were given inhalation of nitrogen and oxygen (1∶ 1). After the reperfusion, motor function and histopathologic changes in the rats were examined. Western blotting and real-time PCR were used to detect the protein and mRNA expressions of GRP78, ATF6, IRE1α, PERK, mTOR, p-mTOR, Bax, Bcl-2 and caspase-3 in the spinal cord. RESULTS The rats showed significantly lowered hind limb motor function following SCIRI (P < 0.01) with a decreased count of normal neurons, increased mRNA and protein expressions of GRP78, ATF6, IRE1α, PERK, and caspase-3, and elevated p-mTOR/mTOR ratio and Bax/Bcl-2 ratio (P < 0.01). Xenon post-conditioning significantly decreased the mRNA and protein levels of GRP78, ATF6, IRE1α, PERK and caspase-3 (P < 0.05 or 0.01) and reduced p-mTOR/mTOR and Bax/Bcl-2 ratios (P < 0.01) in rats with SCIRI; the mRNA contents and protein levels of GRP78 and ATF6 were significantly decreased in I/R+Rapa group (P < 0.01). Compared with those in Xe group, the rats in I/R+Rapa group and Xe+Rapa had significantly lowered BBB and Tarlov scores of the hind legs (P < 0.01), and caspase-3 protein level and Bax/Bcl-2 ratio were significantly lowered in Xe+Rapa group (P < 0.05 or 0.01). CONCLUSION By inhibiting ERS and neuronal apoptosis, xenon post- conditioning may have protective effects against SCIRI in rats. The mTOR signaling pathway is partially involved in this process.
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Affiliation(s)
- L Luo
- Department of Anesthesiology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - J Tong
- Department of Anesthesiology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - L Li
- Department of Anesthesiology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - M Jin
- Department of Anesthesiology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
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Chen J, He J, Luo L. Brain vascular damage-induced lymphatic ingrowth is directed by Cxcl12b/Cxcr4a. Development 2022; 149:275687. [PMID: 35694896 DOI: 10.1242/dev.200729] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 06/06/2022] [Indexed: 12/15/2022]
Abstract
After ischemic stroke, promotion of vascular regeneration without causing uncontrolled vessel growth appears to be the major challenge for pro-angiogenic therapies. The molecular mechanisms underlying how nascent blood vessels (BVs) are correctly guided into the post-ischemic infarction area remain unknown. Here, using a zebrafish cerebrovascular injury model, we show that chemokine signaling provides crucial guidance cues to determine the growing direction of ingrown lymphatic vessels (iLVs) and, in turn, that of nascent BVs. The chemokine receptor Cxcr4a is transcriptionally activated in the iLVs after injury, whereas its ligand Cxcl12b is expressed in the residual central BVs, the destinations of iLV ingrowth. Mutant and mosaic studies indicate that Cxcl12b/Cxcr4a-mediated chemotaxis is necessary and sufficient to determine the growing direction of iLVs and nascent BVs. This study provides a molecular basis for how the vessel directionality of cerebrovascular regeneration is properly determined, suggesting potential application of Cxcl12b/Cxcr4a in the development of post-ischemic pro-angiogenic therapies.
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Affiliation(s)
- Jingying Chen
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, 400715 Chongqing, China.,University of Chinese Academy of Sciences (Chongqing), Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Beibei, 400714 Chongqing, China
| | - Jianbo He
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, 400715 Chongqing, China
| | - Lingfei Luo
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, 400715 Chongqing, China.,University of Chinese Academy of Sciences (Chongqing), Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Beibei, 400714 Chongqing, China
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Xu Y, Luo L, Chen J. Sulfamethoxazole induces brain capillaries toxicity in zebrafish by up-regulation of VEGF and chemokine signalling. Ecotoxicol Environ Saf 2022; 238:113620. [PMID: 35561544 DOI: 10.1016/j.ecoenv.2022.113620] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 04/27/2022] [Accepted: 05/07/2022] [Indexed: 06/15/2023]
Abstract
Sulfamethoxazole (SMX) is a widespread broad-spectrum bacteriostatic antibiotic. Its residual is frequently detected in the water and may therefore bioaccumulate in the brain of aquatic organisms via blood circulation. Brain capillaries toxicity is very important for brain development. However, little information is available in the literature to show the toxicity of SMX to brain development. To study the SMX's brain toxic effects and the related mechanisms, we exposed zebrafish embryos to SMX at different concentrations (0 ppm, 1 ppm, 25 ppm, 100 ppm and 250 ppm) and found that high concentration (250 ppm) of SMX would not only caused an abnormal in malformation rate, hatching rate, body length and survival rate of zebrafish embryos, but also lead to brain oedema. In addition, SMX also induced cerebral ischaemia, aggravates oxidative stress, and changes genes related to oxidative stress (sod1, cat, gpx4, and nrf2). Furthermore, ischaemia caused by SMX could promote ectopic angiogenesis in brain via activating the angiogenesis-related genes (vegfab, cxcr4a, cxcl12b) from 24 h to 53 h. Inhibition of VEGF signalling by SU5416, or inhibition of chemokine downstream PI3K signalling by LY294002, could rescue the brain capillaries toxicity and brain oedema induced by SMX. Our results provide new evidence for the brain toxicity of SMX and its residual danger in the environment and aquatic organisms.
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Affiliation(s)
- Yuhang Xu
- University of Chinese Academy of Sciences (Chongqing), Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Beibei, 400714 Chongqing, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lingfei Luo
- University of Chinese Academy of Sciences (Chongqing), Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Beibei, 400714 Chongqing, China; Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, 400715 Chongqing, China
| | - Jingying Chen
- University of Chinese Academy of Sciences (Chongqing), Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Beibei, 400714 Chongqing, China.
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You W, Luo L, Li Q, Wang Y, Wang Y, Gong Q, Li F. Altered dynamic functional topology in first-episode untreated patients with schizophrenia can aid in early diagnosis. Eur Psychiatry 2022. [PMCID: PMC9564955 DOI: 10.1192/j.eurpsy.2022.321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction There is a growing consensus on brain networks that it is not immutable but rather a dynamic complex system for adapting environment. The neuroimaging research studying how brain regions work collaboratively with dynamic methods had demonstrated its effectiveness in revealing the neural mechanisms of schizophrenia. Objectives To investigate altered dynamic brain functional topology in first-episode untreated schizophrenia patients (SZs) and establish classification models to find objective brain imaging biomarkers. Methods Resting-state-functional magnetic resonance data for SZs and matched healthy controls were obtained(Table1). ![]()
Power-264-template was used to extract nodes and sliding-window approach was carried out to establish functional connectivity matrices. Functional topology was assessed by eigenvector centrality(EC) and node efficiency and its time-fluctuating was evaluated with coefficient of variation(CV). Group differences of dynamic topology and correlation analysis between Positive and Negative Syndrome Scale(PANSS) scores and topology indices showing group differences, which also were used in establishing classification models, was examed. Results The CV of node efficiency in angular and paracingulate gyrus was larger in SZs. There are 13 nodes assigned into several brain networks displaying altered CV of EC between groups(Figure1.A). Fluctuation of EC of the node in DMN, which was lower in SZs, showed negative correlation with PANSS total scores(Figure1.B). Dynamic functional topology of above nodes was used to train classification models and demonstrated 80% and 71% accuracy for support vector classification(SVC) and random forest(RF), respectively(Figure2). ![]()
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Conclusions Dynamic functional topology illustrated a capability in identifying SZs. Aberrated dynamics of DMN relevant to severity of patient’s symptoms could reveal the reason why it contributed to classification. Disclosure No significant relationships.
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Li Q, Luo L, You W, Wang Y, Wang Y, Gong Q, Li F. Brain controllability and clinical relevance in schizophrenia. Eur Psychiatry 2022. [PMCID: PMC9566872 DOI: 10.1192/j.eurpsy.2022.516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction
Apart from the psychiatric symptoms, cognitive deficits are also the core symptoms of schizophrenia. Brain network control theory provided information on the role of a specific brain region in the cognitive control process, helping understand the neural mechanism of cognitive impairment in schizophrenia.
Objectives
To characterize the control properties of functional brain network in first-episode untreated patients with schizophrenia and the relationships between controllability and psychiatric symptoms, as well as exploring the predictive value of controllability in differentiating patients from healthy controls (HCs).
Methods
Average and modal controllability of brain networks were calculated and compared between 133 first-episode untreated patients with schizophrenia and 135 HCs. The associations between controllability and clinical symptoms were evaluated using sparse canonical correlation analysis. Support vector machine (SVM) and SVM-recursive feature elimination combined with the controllability were performed to establish the individual prediction model.
Results
Compared to HCs, the patients with schizophrenia showed increased average controllability and decreased modal controllability in dorsal anterior cingulate cortex (dACC). Brain controllability predominantly in somatomotor, default mode, and visual networks was associated with the positive symptomatology of schizophrenia. The established model could identify patients with an accuracy of 0.68. Furthermore, the most discriminative features were located in dACC, medial prefrontal lobe, precuneus and superior temporal gyrus.
Conclusions
Altered controllability in dACC may play a critical role in the neuropathological mechanisms of cognitive deficit in schizophrenia, which could drive the brain function to different states to cope with varied cognitive tasks. As symptom-related biomarkers, controllability could be also beneficial to individual prediction in schizophrenia.
Disclosure
No significant relationships.
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Liu X, Wang W, Tang Y, Wang YK, Luo L, Song L. [Comparison of the long-term outcomes of focused ultrasound ablation surgery for uterine fibroids and myomectomy]. Zhonghua Fu Chan Ke Za Zhi 2022; 57:244-252. [PMID: 35484655 DOI: 10.3760/cma.j.cn112141-20210830-00476] [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 compare the long-term outcomes after focused ultrasound ablation surgery (FUAS) versus myomectomy for uterine fibroids. Methods: A retrospective study was conducted on women who were treated by FUAS or myomectomy for uterine fibroids at First Medical Center of Chinese PLA General Hospital from January 2007 to January 2015. Regular follow-up was conducted to evaluate the symptoms relief, symptoms recurrence, the need for re-interventions and complications of the two groups. Results: The effective rates were 95.7% (730/763) and 95.5% (1 151/1 205) in women who were treated by FUAS and myomectomy, no statistical difference was seen between the two groups (χ²=0.027, P=0.869). The cumulative rates of symptoms recurrence at 1 year, 3 years, 5 years, 8 years and 10 years of follow-up in FUAS group were 1.8%, 6.8%, 11.9%, 15.2% and 15.9%, respectively; and the cumulative re-intervention rates were 0.7%, 4.1%, 6.8%, 9.9% and 11.0%, respectively. The cumulative rates of symptoms recurrence at 1 year, 3 years, 5 years, 8 years and 10 years of follow-up in myomectomy group were 1.8%, 5.9%, 10.6%, 14.2% and 14.9%, respectively; and the cumulative re-intervention rates were 0.9%, 4.5%, 7.8%, 10.3% and 11.4%, respectively. No statistical differences were seen between the two groups (all P>0.05). There were no significant differences in the effective rate, symptoms recurrence rate and re-intervention rate between the two groups in patients with intermural fibroids; but the effective rate of FUAS (95.9%, 235/245) was higher than that of myomectomy (89.1%, 115/129), the symptoms recurrence rate (11.9%, 28/235) was lower than that of myomectomy (27.8%, 32/115), and the re-intervention rate (7.7%, 18/235) was lower than that of myomectomy (17.4%, 20/115) in patients with submucosal fibroids, there were significant different (all P<0.05). The effective rate of FUAS (91.0%, 132/145) was lower than that of myomectomy (97.0%, 322/332), the symptoms recurrence rate (32.6%, 43/132) was higher than that of myomectomy (9.9%, 32/322), and the re-intervention rate (22.0%, 29/132) was higher than that of myomectomy group (6.2%, 20/132) in patients with subserosal fibroids, there were significant different (all P<0.01). The incidences of total [1.8% (14/763) vs 21.9% (264/1 205)], minor and moderate adverse events were lower in FUAS group than myomectomy group (all P<0.001). Conclusion: Satisfaction with long-term outcomes after FUAS treatment or myomectomy for uterine fibroids is comparable.
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Affiliation(s)
- X Liu
- Department of Ultrasound, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - W Wang
- Department of Ultrasound, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Y Tang
- Department of Ultrasound, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Y K Wang
- Department of Ultrasound, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - L Luo
- Department of Ultrasound, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Lei Song
- Department of Obstetrics and Gynecology, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
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Liu S, Bu X, Kan A, Luo L, Xu Y, Chen H, Lin X, Lai Z, Wen D, Huang L, Shi M. SP1-induced lncRNA DUBR promotes stemness and oxaliplatin resistance of hepatocellular carcinoma via E2F1-CIP2A feedback. Cancer Lett 2022; 528:16-30. [PMID: 34958891 DOI: 10.1016/j.canlet.2021.12.026] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [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: 09/16/2021] [Revised: 12/20/2021] [Accepted: 12/21/2021] [Indexed: 12/20/2022]
Abstract
Oxaliplatin-based chemotherapy is widely used to treat advanced hepatocellular carcinoma (HCC), but many patients develop drug resistance that leads to tumor recurrence. Cancer stem cells (CSCs) are known to contribute to chemoresistance, the underlying mechanism, however, remains largely unknown. In this study, we discovered a specificity protein 1 (SP1)-induced long noncoding RNA--DPPA2 upstream binding RNA (DUBR) and its high expression in HCC tissues and liver CSCs. DUBR was associated with HCC progression and poor chemotherapy response. Moreover, DUBR facilitated the stemness and oxaliplatin resistance of HCC in vitro and in vivo. Mechanistically, DUBR upregulated cancerous inhibitor of protein phosphatase 2A (CIP2A) expression through E2F1-mediated transcription regulation. DUBR also exerted function by binding microRNA (miR)-520d-5p as a competing endogenous RNA to upregulate CIP2A at mRNA level. CIP2A, in turn, stabilized E2F1 protein and activated the Notch1 signaling pathway, thereby increasing the stemness feature of HCC and leading to chemoresistance. In conclusion, we identified SP1/DUBR/E2F1-CIP2A as a critical axis to activate the Notch1 signaling pathway and promote stemness and chemoresistance of HCC. Therefore, DUBR could be a potential target in HCC treatment.
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Affiliation(s)
- S Liu
- Department of Hepatobiliary Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China; State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Xy Bu
- Department of Hepatobiliary Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China; State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Anna Kan
- Department of Hepatobiliary Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China; State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - L Luo
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Yj Xu
- Department of Hepatobiliary Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China; State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Hl Chen
- Department of Hepatobiliary Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China; State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Xj Lin
- Department of Hepatobiliary Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China; State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Zc Lai
- Department of Hepatobiliary Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China; State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Ds Wen
- Department of Hepatobiliary Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China; State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Lc Huang
- Department of Hepatobiliary Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China; State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - M Shi
- Department of Hepatobiliary Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China; State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China.
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TANG J, Liao Z, Luo L, Deng S, Hu X, Li X. POS-400 CD16+ MONOCYTES RECRUITED BY GLOMERULAR ENDOTHELIAL CELLS VIA THE CX3CL1-CX3CR1 AXIS CONTROBUTE TO RENAL DAMAGE IN MPO-AAV. Kidney Int Rep 2022. [DOI: 10.1016/j.ekir.2022.01.422] [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: 10/19/2022] Open
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Zhang W, Wu C, Ni R, Yang Q, Luo L, He J. Formimidoyltransferase cyclodeaminase prevents the starvation-induced liver hepatomegaly and dysfunction through downregulating mTORC1. PLoS Genet 2021; 17:e1009980. [PMID: 34941873 PMCID: PMC8741050 DOI: 10.1371/journal.pgen.1009980] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 01/07/2022] [Accepted: 12/06/2021] [Indexed: 11/18/2022] Open
Abstract
The liver is a crucial center in the regulation of energy homeostasis under starvation. Although downregulation of mammalian target of rapamycin complex 1 (mTORC1) has been reported to play pivotal roles in the starvation responses, the underpinning mechanisms in particular upstream factors that downregulate mTORC1 remain largely unknown. To identify genetic variants that cause liver energy disorders during starvation, we conduct a zebrafish forward genetic screen. We identify a liver hulk (lvh) mutant with normal liver under feeding, but exhibiting liver hypertrophy under fasting. The hepatomegaly in lvh is caused by enlarged hepatocyte size and leads to liver dysfunction as well as limited tolerance to starvation. Positional cloning reveals that lvh phenotypes are caused by mutation in the ftcd gene, which encodes the formimidoyltransferase cyclodeaminase (FTCD). Further studies show that in response to starvation, the phosphorylated ribosomal S6 protein (p-RS6), a downstream effector of mTORC1, becomes downregulated in the wild-type liver, but remains at high level in lvh. Inhibition of mTORC1 by rapamycin rescues the hepatomegaly and liver dysfunction of lvh. Thus, we characterize the roles of FTCD in starvation response, which acts as an important upstream factor to downregulate mTORC1, thus preventing liver hypertrophy and dysfunction. Under starvation, the liver initiates a series of metabolic adaptations to maintain energy homeostasis that is critical for survival. During this process, mTORC1 pathway is downregulated to reduce anabolism and promote catabolism, ensuring adequate usage of limited resources. However, mechanisms underlying the downregulation of mTORC1 remain incompletely understood. In a zebrafish genetic screen aiming to characterize factors important for starvation response in the liver, we identify an ftcd mutation that causes liver hypertrophy and dysfunction under fasting. FTCD acts upstream to inactivate mTORC1 in response to starvation. Our work reveals previously unappreciated roles of FTCD in the responses to energy stress through modulating mTORC1 activities, moreover implicates a potential liver disorder risk of FTCD deficiency under the circumstances of starvation.
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Affiliation(s)
- Wenfeng Zhang
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Yubei, Chongqing, China
| | - Chaoying Wu
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
| | - Rui Ni
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
| | - Qifen Yang
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
| | - Lingfei Luo
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
- * E-mail: (LL); (JH)
| | - Jianbo He
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
- * E-mail: (LL); (JH)
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Xiao YS, Zhu FY, Luo L, Xing XY, Li YH, Zhang XW, Shen DH. [Clinical and immunological characteristics of 88 cases of overlap myositis]. Beijing Da Xue Xue Bao Yi Xue Ban 2021. [PMID: 34916687 DOI: 10.19723/j.issn.1671-167x.2021.06.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
OBJECTIVE To investigate the clinical and immunological characteristics of overlap myositis (OM) patients. METHODS The data of 368 patients with idiopathic inflammatory myopathies (IIMs) admitted to Peking University People's Hospital from January 2004 to August 2020 were analyzed retrospectively, including demographic characteristics, clinical characteristics (including fever, Gottron' s sign/papules, Heliotrope rash, V-sign, Shawl sign, Mechanic' s hands, skin ulceration, periungual erythema, subcutaneous calcinosis, dysphagia, myalgia, myasthenia, arthritis, Raynaud' s phenomenon, interstitial lung disease, pulmonary hypertension and myocardial involvement), laboratory characteristics, immunological characteristics [including antinuclear antibodies, rheumatoid factors, myositis-associated autoantibodies (MAAs) and myositis-specific autoantibodies (MSAs)] and survival. The clinical and immunological characteristics and prognostic differences of OM and non-OM were compared. The Kaplan-Meier and Log Rank methods were used to analyze the survival. RESULTS A total of 368 patients were included. 23.9% (88/368) of IIMs patients were OM patients. Among the 88 OM patients, 85.2% (75/88) of them were female, and the median interval between disease onset and diagnosis was 13.5 months. The incidence of overlapped connective tissue diseases in the OM patients was dermatomyositis (DM) in 60.2%, polymyositis (PM) in 3.4%, immune-mediated necrotizing myopathy (IMNM) in 2.3% and anti-synthetase syndrome (ASS) in 34.1%. Compared with the non-OM patients, the proportion of the females in the OM patients was higher (85.2% vs. 72.1%, P=0.016), the OM patients had longer disease duration [13.5(4.5, 48.0) months vs. 4.0(2.0, 12.0) months, P < 0.001]. As for clinical characteristics, compared with the non-OM patients, the incidence of V-sign (25.0% vs. 44.6%, P=0.001) and periungual erythema (8.0% vs. 19.6%, P=0.013) were lower; the incidence of Raynaud's phenomenon (14.8% vs. 1.8%, P < 0.001), interstitial pneumonia (88.6% vs. 72.1%, P=0.001), pulmonary hypertension (22.7% vs. 7.5%, P < 0.001) and myocardial involvement (18.2% vs. 9.3%, P=0.033) were higher. As for immunological characteristics, compared with the non-OM patients, the incidence of elevated aspartate aminotransferase (AST) (31.8% vs. 45.0%, P=0.035) was lower and elevated C-reactive protein (CRP) (58.0% vs. 44.6%, P=0.037) was higher; the positive rates of antinuclear antibodies (ANA) (85.1% vs. 63.4%, P=0.001) and rheumatoid factors (RF) (40.2% vs. 17.8%, P < 0.001) and anti-Ro-52 (71.6% vs. 56.1%, P=0.038) in serum were higher. There was no significant difference in the survival between the OM patients and non-OM patients. CONCLUSION Pulmonary hypertension and myocardial involvement were frequently observed in OM.
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Affiliation(s)
- Y S Xiao
- Department of Pathology, Peking University People's Hospital, Beijing 100044, China
| | - F Y Zhu
- Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing 100044, China
| | - L Luo
- Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing 100044, China
| | - X Y Xing
- Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing 100044, China
| | - Y H Li
- Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing 100044, China
| | - X W Zhang
- Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing 100044, China
| | - D H Shen
- Department of Pathology, Peking University People's Hospital, Beijing 100044, China
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Luo L, Yang JX, Luo T, Liu D, Wu GH, He JM. A study on the mechanism of PP2A in the recovery of SCI in rats through downregulation of MMP-9 via MAPK signaling pathway. Eur Rev Med Pharmacol Sci 2021; 25:7195-7203. [PMID: 34919217 DOI: 10.26355/eurrev_202112_27411] [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 The aim of this study was to investigate the mechanism of action of protein phosphatase 2A (PP2A) in the recovery of spinal cord injury (SCI) in rats by downregulating matrix metalloproteinase 9 (MMP-9) via the mitogen-activated protein kinase (MAPK) signaling pathway. MATERIALS AND METHODS A model of SCI was first successfully established in rats. A total of three groups were set, including: sham operation group (A group), SCI group (B group) and PP2A group (C group). The Basso, Beattie and Bresnahan (BBB) motor function score and inclined plane test were adopted to evaluate the motor ability and limb muscle strength of rats in each group. The water content in spinal cord tissues was detected as well. Quantitative Polymerase Chain Reaction (qPCR) assay was performed to analyze the messenger ribonucleic acid (mRNA) expression levels of MAPK, MMP-2, and MMP-9 in spinal cord tissues. The expressions of inflammatory factors tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β) and IL-6 in each group of rats were determined via enzyme-linked immunosorbent assay (ELISA). Western blotting (WB) was employed to measure the protein expression levels of MAPK, MMP-2 and MMP-9 in each group of rats. Additionally, the apoptosis of nerve cells in spinal cord tissues was analyzed through terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) assay. RESULTS The BBB score was 8.8 points in C group at 5 d after operation, which was significantly different from that in B group (p<0.05). The slope in B and C groups was clearly lower than that in A group at each time point (p<0.001). Meanwhile, it was significantly higher in C group than that in B group at 5, 7 and 9 d (p<0.05). The edema rate rose notably in B group compared with A group (p<0.001). However, spinal cord edema was remarkably relieved after treatment with FRY720 (p<0.01), suggesting that PP2A agonist could treat SCI in rats. The levels of cytokines TNF-α, IL-1β and IL-6 were markedly higher in B group than those in A group (p<0.01). However, they were significantly reduced after treatment with PP2A agonist (p<0.01). In comparison with A group, B group exhibited remarkably decreased mRNA expression of MAPK and elevated mRNA expressions of MMP-2 and MMP-9 (p<0.01). However, C group exhibited an upregulated mRNA expression of MAPK (p<0.05), a downregulated mRNA expression of MMP-9 (p<0.01), and an undifferentiated mRNA expression of MMP-2 (p>0.05). Compared with B group, the protein expression level of MAPK significantly increased (p<0.05), while that of MMP-9 evidently decreased in C group (p<0.05). Besides, no statistically significant difference was observed in the protein expression level of MMP-2 between C group and B group (p>0.05). Compared with that in A group, the apoptosis rate significantly increased in B group (p<0.001). In addition, the apoptosis rate was significantly lower in C group than that in B group, showing a statistically significant difference (p<0.01). CONCLUSIONS PP2A downregulates MMP-9 through the MAPK signaling pathway, thereby conducing to the recovery of SCI in rats.
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Affiliation(s)
- L Luo
- Department of Orthopaedic Hand Surgery, The Affiliated Hospital of Traditional Chinese Medicine of Southwest Medical University, Luzhou, China.
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