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Wang F, Wang X, Li J, Lv P, Han M, Li L, Chen Z, Dong L, Wang N, Gu Y. CircNOL10 suppresses breast cancer progression by sponging miR-767-5p to regulate SOCS2/JAK/STAT signaling. J Biomed Sci 2021; 28:4. [PMID: 33397365 PMCID: PMC7780627 DOI: 10.1186/s12929-020-00697-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 11/26/2020] [Indexed: 12/20/2022] Open
Abstract
Background Circular RNAs (circRNAs) have caught increasing attentions and interests for their important involvement in cancer initiation and progression. This study aims to investigate the biological functions of circNOL10 and its potential molecular mechanisms in breast cancer (BC). Materials and methods qRT-PCR and western blot assays were performed to measure the expression of related genes. CCK-8, colony formation, flow cytomerty and transwell assays were used to assess cell proliferation, cell cycle, migration and invasion. RNA pull-down, luciferase reporter and RIP assays were applied to address the potential regulatory mechanism of circNOL10. Results CircNOL10 was down-regulated in BC tissues and cells. Low expression of circNOL10 was associated with larger tumor size, advanced TNM stage, lymph node metastasis and unfavorable prognosis. Overexpression of circNOL10 inhibited cell proliferation, migration, invasion and EMT in vitro and slowed xenograft tumor growth in vivo. Mechanistically, circNOL10 could act as a molecular sponge for miR-767-5p, leading to the up-regulation of suppressors of cytokine signaling 2 (SOCS2) and inactivation of JAK2/STAT5 pathway. Moreover, circNOL10-mediated suppression of malignant phenotypes was attenuated by miR-767-5p. Similar to circNOL10, enforced expression of SOCS2 also resulted in the suppression of cell proliferation and metastasis. Furthermore, knockdown of SOCS2 reversed the tumor-suppressive effect induced by circNOL10. Conclusions CircNOL10 repressed BC development via inactivation of JAK2/STAT5 signaling by regulating miR-767-5p/SOCS2 axis. Our findings offer the possibility of exploiting circNOL10 as a therapeutic and prognostic target for BC patients.
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Dong L, Li HM, Wang SN, Wang TL, Yu LH, Wang HR. Meishan neonatal piglets tend to have higher intestinal barrier function than crossbred neonatal piglets. Animal 2021; 15:100037. [PMID: 33516037 DOI: 10.1016/j.animal.2020.100037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 06/22/2020] [Accepted: 06/26/2020] [Indexed: 01/21/2023] Open
Abstract
Meishan pigs tend to have higher disease resistance than commercial breeds, although more studies are needed to confirm this difference. This study compared intestinal barrier function between Meishan and crossbred neonatal piglets to provide guidance for both the breeding and nutritional regulation of pigs. Six Meishan piglets and 6 Duroc × (Landrace × Yorkshire) crossbred neonatal piglets (all with normal birth weights) were obtained and allocated into the MEIS and CROSS groups, respectively. Intestinal morphology, goblet cell numbers, antioxidant enzyme activity, and cytokine gene and tight junction protein expression were assessed. The results showed that BW was lower in the MEIS group than in the CROSS group (P < 0.01). The relative lengths of the duodenum (P < 0.05), jejunum (P < 0.01) and ileum (P < 0.01) in the MEIS group were higher than those in the CROSS group. Compared with the CROSS group, the MEIS group exhibited shorter villus lengths in the duodenum and jejunum (P < 0.01), a shallower crypt depth in the ileum (P < 0.001) and denser and longer microvilli in the intestine. The numbers of GCs in the duodenum (P < 0.01) and jejunum (P < 0.001) and the activity levels of glutathione peroxidase (P < 0.05) in the jejunum and of catalase (P < 0.01) and superoxide dismutase (P < 0.01) in the ileum were higher in the MEIS group than in the CROSS group. Compared with the CROSS group, the MEIS group exhibited higher gene expression levels of interleukin (IL) 4 and interferon γ (IFNγ) in the jejunum (P < 0.05); IL2 (P < 0.05), IL4 (P < 0.01) and IFNγ (P < 0.001) in the ileum; and mucin 2 (P < 0.01) and occludin (P < 0.05) in the duodenum. In conclusion, Meishan neonatal piglets showed lower birth weights but higher intestinal barrier function than crossbred piglets.
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Wen S, Zhang T, Yu X, Dong W, Lan T, Fan J, Xue Y, Wang F, Dong L, Qin S, Huang H. Bone penetration of linezolid in osteoarticular tuberculosis patients of China. Int J Infect Dis 2020; 103:364-369. [PMID: 33278623 DOI: 10.1016/j.ijid.2020.11.203] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 11/21/2020] [Accepted: 11/26/2020] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Linezolid presents strong antimicrobial activity against multidrug-resistant (MDR) pulmonary tuberculosis (TB), but its application in osteoarticular tuberculosis treatment remains understudied. Our objective was to analyze the bone penetration efficiency of linezolid in osteoarticular TB patients. METHODS Osteoarticular TB patients, treated with 600 mg q 24 h linezolid-containing regimens and undergoing surgery, were prospectively and consecutively enrolled. One dose linezolid was administered before surgery. Blood and bone samples were collected simultaneously during operation, and their linezolid concentrations were then detected using high-performance liquid chromatography-tandem mass spectrometry. Pus samples were subjected to mycobacterial culture and GeneXpert MTB/RIF assay. The minimum inhibition concentrations (MICs) and drug susceptibility testing were performed with the recovered isolates. RESULTS A total of 36 eligible osteoarticular TB patients were enrolled, including five MDR/rifampicin-resistant cases. All the 12 recovered isolates had MICs ≤0.5 μg/mL for linezolid. Mean concentrations in plasma, collected 100-510 min after the preoperative dosing, were 10.43 ± 4.83 μg/mL (range 3.29-22.26 μg/mL), and median concentrations in bone were 3.93 μg/mL (range 0.61-16.34 μg/mL). The median bone/plasma penetration ratio was 0.42 (range 0.14-0.95 μg/mL). Linezolid concentration in bone had a linear correlation with the drug concentration in plasma (r = 0.7873, p < 0.0001), while plasma concentration could explain 61.98% of the variation of concentration in bone (R2 = 0.6198). Notably, stratification analysis by sampling time demonstrated that samples collected 200-510 min after dosing had very good linear relationships between their bone and plasma concentrations (r = 0.9323). CONCLUSIONS Linezolid penetrates from blood to bone efficiently, and the penetration further stabilizes ∼3 h after dosing.
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Yoon S, Freedman G, Anamalayil S, Dong L, Hubley E, Kennedy C, Teo K, Taunk N, Metz J, Zou W, Li T. Daily Dosimetric Robustness of Prone-Position Whole Breast Radiotherapy (WBRT) Planned With Electronic Tissue Compensation (ECOMP) and 6MV Flattening Filter Free (6X-FFF) Beam Energy: Dose Variation and Predictive Factors. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Barsky A, Lin H, Mendes A, Wright C, Berman A, Levin W, Cengel K, Anderson N, Dong L, Metz J, Li T, Feigenberg S. Initial Clinical Experience Treating Patients with Lung Cancer on a 6MV Flattening Filter Free O-Ring Linear Accelerator. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Li L, Tang S, Yin J, Pang J, Bao H, Ge H, Liu Y, Wang J, Dong L, Mu D, Yuan S, Wu X, Wang X, Shao Y, Yu J, Yuan S. Molecular Biomarkers for Chemoradiotherapy Response in Unresectable Limited Stage Small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Yoon S, Lin H, Alonso-Basanta M, Anderson N, Apinorasethkul O, Cooper K, Dong L, Kempsey B, Marcel J, Metz J, Scheuermann R, Li T. Evaluation of the Auto-Segmentation Performance of a Novel Online Adaptive Radiotherapy System for Head and Neck Cancer Treatment. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Scheuermann R, Marcel J, Anderson N, Apinorasethkul O, Cooper K, Kempsey B, Yoon S, Alonso-Basanta M, Li T, Metz J, Dong L. Evaluation of Dosimetric Quality of Auto-Generated Plans by a Novel Online Adaptive System for Head and Neck Radiotherapy. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Wang J, Zhao W, Liu R, Huo F, Dong L, Xue Y, Wang Y, Xue Z, Ma L, Pang Y. Rapid Detection of Ethambutol-Resistant Mycobacterium tuberculosis from Sputum by High-Resolution Melting Analysis in Beijing, China. Infect Drug Resist 2020; 13:3707-3713. [PMID: 33116691 PMCID: PMC7586015 DOI: 10.2147/idr.s270542] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 08/29/2020] [Indexed: 11/23/2022] Open
Abstract
Objective We conducted a retrospective study to evaluate the performance of MeltPro assay for detecting ethambutol (EMB) susceptibility of Mycobacterium tuberculosis (MTB) isolates in sputum specimens in Beijing, China. Methods Smear-positive TB patients undergoing MeltPro assay in the Beijing Chest Hospital between January 2019 and December 2019 were included. Phenotypic drug susceptibility testing (DST) was used as the reference standard to calculate the diagnostic accuracy of MeltPro assay for EMB resistance. Sanger sequencing of embB gene was conducted to resolve the discrepancies between MeltPro assay and phenotypic DST. Results A total of 222 smear-positive patients were included in our analysis. The overall agreement rate between the two assays was 91.4%, with a kappa value of 0.78. Among 59 EMB-resistant TB cases diagnosed by DST, 49 were identified by MeltPro assay, demonstrating a sensitivity of 83.1%. In addition, 154 out of 163 EMB-susceptible patients diagnosed by DST were correctly detected with MeltPro assay, yielding a specificity of 93.9%. The probe frequency associated with the observed EMB-resistance was as follows: A (45/58), B (7/58), and D (6/58), and no EMB-resistance was associated with probe C. The presence of amino acid substitution was observed among all 9 cases with potentially “false-negative” results, including 7 with Met306Ile, 1 with Met306Val, 1 with Gly406Asp, respectively. Conclusion MeltPro assay is a promising diagnostic tool for the detection of EMB resistance in China. The specific amino acid substitution in embB gene is the major reason for discrepancies between MeltPro assay and phenotypic DST.
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Li W, Wu Y, Zhao Y, Li Z, Chen H, Dong L, Liu H, Zhang M, Wu Y, Zhou J, Xiong J, Hu Y, Hua W, Zhang B, Qiu M, Zhang QL, Wei C, Wen M, Han J, Zhou X, Qiu W, Yan F, Huang H, Ying S, Choi AMK, Shen H, Chen Z. MTOR suppresses autophagy-mediated production of IL25 in allergic airway inflammation. Thorax 2020; 75:1047-1057. [PMID: 33077617 DOI: 10.1136/thoraxjnl-2019-213771] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 07/27/2020] [Accepted: 07/29/2020] [Indexed: 02/01/2023]
Abstract
INTRODUCTION Airway epithelial cells are recognised as an essential controller for the initiation and perpetuation of asthmatic inflammation, yet the detailed mechanisms remain largely unknown. This study aims to investigate the roles and mechanisms of the mechanistic target of rapamycin (MTOR)-autophagy axis in airway epithelial injury in asthma. METHODS We examined the MTOR-autophagy signalling in airway epithelium from asthmatic patients or allergic mice induced by ovalbumin or house dust mites, or in human bronchial epithelial (HBE) cells. Furthermore, mice with specific MTOR knockdown in airway epithelium and autophagy-related lc3b -/- mice were used for allergic models. RESULTS MTOR activity was decreased, while autophagy was elevated, in airway epithelium from asthmatic patients or allergic mice, or in HBE cells treated with IL33 or IL13. These changes were associated with upstream tuberous sclerosis protein 2 signalling. Specific MTOR knockdown in mouse bronchial epithelium augmented, while LC3B deletion diminished allergen-induced airway inflammation and mucus hyperproduction. The worsened inflammation caused by MTOR deficiency was also ameliorated in lc3b -/- mice. Mechanistically, autophagy was induced later than the emergence of allergen-initiated inflammation, particularly IL33 expression. MTOR deficiency increased, while knocking out of LC3B abolished the production of IL25 and the eventual airway inflammation on allergen challenge. Blocking IL25 markedly attenuated the exacerbated airway inflammation in MTOR-deficiency mice. CONCLUSION Collectively, these results demonstrate that allergen-initiated inflammation suppresses MTOR and induces autophagy in airway epithelial cells, which results in the production of certain proallergic cytokines such as IL25, further promoting the type 2 response and eventually perpetuating airway inflammation in asthma.
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Zhang YJ, Zhao H, Dong L, Zhen YF, Xing HY, Ma HJ, Song GY. Resveratrol ameliorates high-fat diet-induced insulin resistance and fatty acid oxidation via ATM-AMPK axis in skeletal muscle. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2020; 23:9117-9125. [PMID: 31696503 DOI: 10.26355/eurrev_201910_19315] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Resveratrol (RSV) is a polyphenolic phytoalexin that exhibits diverse pharmacological actions, including its effect on the insulin resistance. However, the mechanism through which RSV improves insulin resistance is not fully understood yet. The aim of this study was to determine the mechanism through which RSV ameliorates insulin resistance in skeletal muscle of high-fat diet (HFD)-induced mouse model, as well as palmitic acid (PA) treated L6 cells, with a specific focus on the response of RSV on fatty acid oxidation. MATERIALS AND METHODS Male C57BL6/J mice were randomly divided into three groups: normal diet-fed mice (ND), the high-fat diet-fed mice (HFD), HFD supplemented with RSV (100 mg/kg body weight [BW]/day orally; n = 10). Fasting plasma glucose, insulin, total cholesterol, triglyceride (TG), and free fatty acid levels were determined. The intraperitoneal glucose tolerance test was used to measure blood glucose and area under the curve. The quantitative insulin sensitivity index was calculated to assess insulin resistance. Skeletal muscles were collected for histology study and protein expression measurement. L6 cells were cultured with PA and the glucose concentration in the culture medium, and the intracellular TG levels were tested. RSV, chloroquine, palmitoyltransferase and Ku-55933 were administered to differentiate L6 cells. RESULTS The HFD fed mice showed increased BW, hyperglycemia, and hyperlipidemia. The expressions of ataxia telangiectasia mutated (ATM), 5' adenosine monophosphate-activated protein kinase (AMPK), carnitine palmitoyltransferase 1, cytochrome oxidase subunit IV protein were significantly decreased in the skeletal muscles of HFD fed mice and PA-treated L6 cells. All these effects induced by HFD and PA were reversed by RSV treatment. CONCLUSIONS ATM is a key factor to improve HFD-induced lipid metabolism and insulin resistance in skeletal muscles. The effects of RSV on ameliorating HFD-induced abnormal lipid metabolism and insulin resistance mediated through ATM-AMPK pathway may due to its improvement in fatty acid oxidation efficiency and sequential reduction in ROS production in skeletal muscle. These results provide important theoretical evidence for the application of RSV in the prevention and treatment of diabetes mellitus and related metabolic diseases.
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Li JX, Zhang ZF, Wang XB, Yang EQ, Dong L, Meng J. PLZF regulates apoptosis of leukemia cells by regulating AKT/Foxo3a pathway. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2020; 23:6411-6418. [PMID: 31378879 DOI: 10.26355/eurrev_201908_18522] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To explore the regulatory role of PLZF in the malignant phenotype of non-APL acute myeloid leukemia (AML) and its underlying mechanism. MATERIALS AND METHODS The expression level of PLZF in AML cell lines KG-1a, HL-60, OCI-AML3, THP-1 and K562 was detected by quantitative Polymerase Chain Reaction (qPCR) and Western blot, respectively. Subsequently, THP-1 cells were divided into mock group (no treatment), scramble group (transfection with scramble shRNA) and shPLZF group (transfection with shPLZF). THP-1 cell line stably expressing shPLZF was constructed, followed by determination of its transfection efficiency by qPCR and Western blot, respectively. The proliferation and colony formation of THP-1 cells were accessed using CCK-8 (cell counting kit-8) assay and colony formation assay, respectively. The apoptotic rate in THP-1 cells was determined using flow cytometry. Protein levels of apoptosis-related genes in THP-1 cells were detected by Western blot. Finally, protein levels of AKT, Foxo3a, pAKT and pFoxo3a were detected by Western blot as well. RESULTS Both mRNA and protein levels of PLZF were relatively high in THP-1 cells, and were selected for the following experiments. After construction of THP-1 cell line stably expressing shPLZF, proliferative rate and colony formation abilities increased in the shPLZF group compared with the mock group and the scramble group. We found a decreased apoptotic rate, downregulated Bax and upregulated Bcl-2 in the shPLZF group than those of the mock group and scramble group. Phosphorylation levels of AKT and Foxo3a increased after interference with PLZF, whereas no significant changes in total levels of AKT and Foxo3a were observed. CONCLUSIONS PLZF inhibits the malignant phenotype of AML by regulating the AKT/Foxo3a pathway.
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Liu FF, Dong L, Yang X, Li DJ, Shen YY, Liu ZL. KLF5 silence attenuates proliferation and epithelial-mesenchymal transition induction in Hep-2 cells through NF-κB signaling pathway. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2020; 23:3867-3875. [PMID: 31115014 DOI: 10.26355/eurrev_201905_17814] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE This study aimed at exploring the role and mechanism of Krüppel-like factor 5 (KLF5) in the migration, invasion, epithelial-mesenchymal transition (EMT) induction and proliferation in laryngeal cancer human epithelial type 2 (Hep-2) cells, and to provide a new sight for the treatment of laryngeal carcinoma. MATERIALS AND METHODS Hep-2 cells were randomly divided into three groups: control group (Control), KLF5 siRNA group (siKLF5) and control-siRNA group (NC). The effects of KLF5 inhibition on cell proliferation and apoptosis were assessed by 3-(4,5-dimethyl thiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay and flow cytometer, respectively. Wound healing assay and transwell invasion experiments were used to determine cell migration and invasion. Quantitative Real Time-Polymerase Chain Reaction (qRT-PCR) and Western blot were used to compare the levels of KLF5, EMT-related genes E-cadherin, N-cadherin, Vimentin and Zinc finger transcription factors (Snail, Slug) expressions. The levels of nuclear transcription factor-κB (NF-κB-p65) and IκBα were also detected by Western blot. RESULTS Compared with the Control group, the proliferation rate of Hep-2 cells in the siKLF5 group was significantly decreased while the apoptosis rate was increased (p<0.05). Meanwhile, the migration and invasion ability of Hep-2 cells were markedly decreased (p<0.05). E-cadherin protein expression was up-regulated while Vimentin, N-cadherin, Snail, and Slug protein expression levels were downregulated in siKLF5 group (p<0.05). Silencing KLF5 could inhibit the expression of NF-κB phosphorylation at p65 and the IκBα degradation (p<0.05). CONCLUSIONS These results revealed that silencing KLF5 expression reduced the proliferation, migration and invasion and EMT abilities by inhibiting the NF-κB pathway in Hep-2 cells. Our results suggest that KLF5 may be a potential therapeutic target in laryngeal carcinoma.
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Wu Y, Wan S, Gu S, Mou Z, Dong L, Luo Z, Zhang J, Hua X. Gestational weight gain and adverse pregnancy outcomes: a prospective cohort study. BMJ Open 2020; 10:e038187. [PMID: 32878761 PMCID: PMC7470642 DOI: 10.1136/bmjopen-2020-038187] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVE To assess the associations of gestational weight gain (GWG) in early and late pregnancy with subsequent risks of adverse pregnancy outcomes in Chinese women. DESIGN Prospective cohort study. SETTING Shanghai, China. PARTICIPANTS We studied 2630 nulliparous singleton pregnant women with complete data on weight gain in early (≤17 weeks of gestation) and late (>17 weeks) pregnancy in the Shanghai Birth Cohort. METHODS GWG was standardised into z-scores by gestational age and categorised as low (z-score <-1), normal (-1 to +1) and high (>1). The adjusted relative risks (aRRs) and 95%CIs were estimated through log-binomial regression models. Interaction effects between GWG and some other adjustment factors were tested, further stratified analyses were performed separately where interaction terms were significant. OUTCOME MEASURES Adverse maternal and neonatal outcomes. RESULTS Independent from GWG in late pregnancy, higher GWG in early pregnancy was associated with higher risks of gestational diabetes mellitus (aRR: 1.66; 95% CI: 1.11 to 2.48), caesarean section (aRR: 1.21; 95% CI: 1.05 to 1.39) and prolonged hospitalisation (aRR: 1.56; 95% CI: 1.03 to 2.38). Higher GWG in late pregnancy was independently associated with higher risks of caesarean section (aRR: 1.24; 95% CI: 1.09 to 1.41), large for gestational age (aRR: 2.01; 95% CI: 1.50 to 2.7) and macrosomia (aRR: 1.90; 95% CI: 1.30 to 2.78). In addition, the risk of gestational hypertension increased significantly with increased total GWG (aRR: 1.78; 95% CI: 1.14 to 2.76). The effects of GWG in late pregnancy on maternal and neonatal outcomes were significantly different between the women bearing a female and the women bearing male fetus. CONCLUSION The GWG associations with adverse pregnancy outcomes differ at early and late pregnancy, and there may be effect modification by fetal sex in the association of GWG in late pregnancy with some pregnancy outcomes.
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Dong L, Sun R, Liu J, Xie L, Li X, Qu S, Sheng Y. PGI7 Cost-Effectiveness Analysis of Vonoprazan Versus Proton Pump Inhibitors in the Treatment of Reflux Esophagitis in China. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Huo F, Ma Y, Li S, Xue Y, Shang Y, Dong L, Li Y, Pang Y. Specific gyrA Gene Mutations Correlate with High Prevalence of Discordant Levofloxacin Resistance in Mycobacterium tuberculosis Isolates from Beijing, China. J Mol Diagn 2020; 22:1199-1204. [DOI: 10.1016/j.jmoldx.2020.06.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 05/25/2020] [Accepted: 06/18/2020] [Indexed: 11/26/2022] Open
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Zhou Z, Li C, Zhu R, Wang D, Liu T, Jia J, Wang F, Zhao L, Dong L, Yu X, Huang H. Combination of Percutaneous Lung Biopsy and Xpert MTB/RIF Ultra Enhances the Differential Diagnosis of Tuberculosis: A Prospective Cohort Study. Infect Dis Ther 2020; 9:797-806. [PMID: 32770473 PMCID: PMC7680488 DOI: 10.1007/s40121-020-00327-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Indexed: 12/17/2022] Open
Abstract
Introduction To evaluate the value of the combination of computed tomography (CT)-guided percutaneous lung biopsy and Xpert MTB/RIF Ultra (Xpert-Ultra) in enhancing the differential diagnosis of tuberculosis. Methods Patients with lesions in the lungs for whom the differential diagnosis was difficult were prospectively and consecutively enrolled. Specimens collected by percutaneous lung biopsy were subject to Xpert-Ultra and histopathologic examination, respectively. Results Biopsy was successfully performed for 147 patients who were eligible for analysis, including 65 TB, 55 lung cancer and 27 other chronic infection cases. The sensitivity, specificity, positive predictive value and negative predictive value of Xpert-Ultra for TB diagnosis were 75.38% (49/65) and 95.12% (78/82), 92.45% (49/53) and 82.98% (78/94), respectively. Among patients with strong evidence for TB diagnosis (categorized as confirmed or probable TB cases), the overall positive rate of the Xpert-Ultra assay was 83.63% (46/55), which was much higher than for any reported sample type with negative smear test outcomes to date. Five rifampicin (RIF)-resistant cases were identified using the biopsy tissues. However, “trace” positive did not seem reliable for TB diagnosis with lung biopsy specimens; a 25.61% (21/82) “trace”-positive rate was acquired in the non-TB group. Conclusion Percutaneous lung biopsy combined with Xpert-Ultra produced high sensitivity for culture-negative pulmonary TB patient diagnosis. “Trace” outcome might not be a reliable positive category for lung biopsy specimens. Trial registration ClinicalTrials.gov identifier, ChiCTR1900026412. Retrospectively registered on Oct 8th, 2019).
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Li HY, Chen B, Sun WM, Hu XG, Dong L, Zhang HL, Zheng YM. [Two cases of innominate artery compression syndrome in children]. ZHONGHUA ER KE ZA ZHI = CHINESE JOURNAL OF PEDIATRICS 2020; 58:679-681. [PMID: 32842390 DOI: 10.3760/cma.j.cn112140-20200110-00025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
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Wu Y, Liu C, Dong L, Zhang C, Chen Y, Liu J, Zhang C, Duan C, Zhang H, Mol BW, Dennis C, Yin T, Yang J, Huang H. Coronavirus disease 2019 among pregnant Chinese women: case series data on the safety of vaginal birth and breastfeeding. BJOG 2020; 127:1109-1115. [PMID: 32369656 PMCID: PMC7383704 DOI: 10.1111/1471-0528.16276] [Citation(s) in RCA: 129] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/20/2020] [Indexed: 01/08/2023]
Abstract
OBJECTIVE To assess whether vaginal secretions and breast milk of women with coronavirus disease 2019 (COVID-19) contain severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). DESIGN Single centre cohort study. SETTING Renmin Hospital of Wuhan University, Wuhan, Hubei province, China. POPULATION We studied 13 SARS-CoV-2-infected pregnant women diagnosed between 31 January and 9 March 2020. METHODS We collected clinical data, vaginal secretions, stool specimens and breast milk from SARS-CoV-2-infected women during different stages of pregnancy and collected neonatal throat and anal swabs. MAIN OUTCOMES AND MEASURES We assessed viral presence in different biosamples. RESULTS Of the 13 women with COVID-19, five were in their first trimester, three in their second trimester and five in their third trimester. Of the five women in their third trimester who gave birth, all delivered live newborns. Among these five deliveries, the primary adverse perinatal outcomes included premature delivery (n = 2) and neonatal pneumonia (n = 2). One of nine stool samples was positive; all 13 vaginal secretion samples, and five throat swabs and four anal swabs collected from neonates, were negative for the novel coronavirus. However, one of three samples of breast milk was positive by viral nucleic acid testing. CONCLUSIONS In this case series of 13 pregnant women with COVID-19, we observed negative viral test results in vaginal secretion specimens, suggesting that a vaginal delivery may be a safe delivery option. However, additional research is urgently needed to examine breast milk and the potential risk for viral contamination. TWEETABLE ABSTRACT New evidence for the safety of vaginal delivery and breastfeeding in pregnant women infected with SARS-CoV-2, positive viral result in a breast-milk sample.
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Fan Y, Dong L, OUYang BS, Xu HM, Zheng SF, Wang AR, Wang CF. [Clinicopathological features of de novo CD5-positive diffuse large B-cell lymphoma]. ZHONGHUA BING LI XUE ZA ZHI = CHINESE JOURNAL OF PATHOLOGY 2020; 49:448-453. [PMID: 32392928 DOI: 10.3760/cma.j.cn112151-20190820-00458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the relationship between the protein expression of C-MYC, bcl-2 and bcl-6 and the clinicopathological characteristics in patients with de novo CD5-positive diffuse large B cell lymphoma (CD5(+)DLBCL). Methods: Fifty seven cases of de novo CD5(+)DLBCL were collected at Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine from February 2013 to September 2018. The hematoxylin-eosin stained slides were reviewed, and immunohistochemical (IHC) staining and FISH were used to analyze the relationship between C-MYC, bcl-2, bcl-6 expression and the clinicopathologic characteristics of patients. Results: Among these 57 cases, 27 were male and 30 were female. The age of onset was 35-99 years old. The IHC expression rates of C-MYC, bcl-2 and bcl-6 were 50.9% (29/57), 84.2% (48/57), and 75.4% (43/57) respectively; and co-expression rate of C-MYC and bcl-2 proteins was 40.4 (23/57). There was no significant correlation between protein expression and patients' genders, clinical stage, the level of serum LDH,β2 microglobulin, IPI,B symptoms, bone marrow involvement and central nervous system recurrence (P>0.05). Univariate analysis showed that the median OS of C-MYC negative patients was significantly longer than C-MYC positive patients (P<0.05); and the median OS of patients without double expression was significantly longer than that of patients with positive expression (P<0.05), and bcl-6 positive patients had longer median OS than bcl-6 negative patients (P<0.05). There was no significant correlation between prognosis and bcl-2 protein expression (P>0.05) . Cox multivariate analysis showed C-MYC protein expression was an independent predictor of OS in de novo CD5(+)DLBCL (P<0.05). Conclusions: Bcl-2 protein expression has no effect on the prognosis in de novo CD5(+)DLBCL whereas bcl-6 expression is correlated with good prognosis. C-MYC protein expression could be used as an independent and effective index to predict the prognosis of patients with de novo CD5(+)DLBCL.However, the relationship between protein expression and gene rearrangement of C-MYC, bcl-2 and bcl-6 needs to be further explored.
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Huo F, Ma Y, Liu R, Ma L, Li S, Jiang G, Wang F, Shang Y, Dong L, Pang Y. Interpretation of Discordant Rifampicin Susceptibility Test Results Obtained Using GeneXpert vs Phenotypic Drug Susceptibility Testing. Open Forum Infect Dis 2020; 7:ofaa279. [PMID: 32766385 PMCID: PMC7397830 DOI: 10.1093/ofid/ofaa279] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Accepted: 07/01/2020] [Indexed: 12/11/2022] Open
Abstract
Background The 3-month difference in turnaround time between Xpert and conventional phenotypic drug susceptibility testing (pDST) causes patient treatment challenges when pDST rifampin (RIF) susceptibility results and earlier Xpert results disagree, resulting in unnecessary tuberculosis (TB) patient exposure to toxic second-line drugs. Here, the prevalence of discordant RIF susceptibility test results, specifically Xpert (resistant) vs pDST (susceptible) results, was determined. Methods Tuberculosis patients enrolled between January 2015 and June 2018 at Beijing Chest Hospital who consecutively tested positive for RIF resistance using Xpert then negative using pDST were studied. DNA sequences and minimal inhibitory concentration (MIC) results provided insights for understanding discordant results. Results Of 26 826 patients with suggestive TB symptoms undergoing Xpert MTB/RIF testing, 728 diagnosed as RIF-resistant were evaluated. Of these, 118 (16.2%) exhibiting Xpert RIF resistance and phenotypic RIF susceptibility yielded 104 successfully subcultured isolates; of these, 86 (82.7%) harbored rpoB gene RIF resistance–determining region mutations and 18 (17.3%) did not. The Leu511Pro (25.0%) and Leu533Pro (17.3%) mutations were most frequently associated with discordant RIF susceptibility test results. Of the 86 isolates with rpoB mutations, 42 (48.8%) with MICs ≤1.0 mg/L were assigned to the RIF-susceptible group, with Leu511Pro being the most common mutation observed. Isolates with a very low bacterial load were most frequently misdiagnosed as RIF-resistant by Xpert. Conclusions Approximately one-sixth of RIF-resistant TB isolates identified via Xpert yielded discordant pDST results due to questionable interpretation of specific “disputed” mutations. Thus, a diagnostic flowchart should be used to correctly interpret Xpert RIF resistance results to best guide patient treatment.
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Dong L, Yang L, Li Y, Yang J, An X, Yang L, Zhou N, Zhang Y, Du H, Lan J, Song Z, Miao X, Zhu J, Tao J. Efficacy of hydrogel patches in preventing facial skin damage caused by mask compression in fighting against coronavirus disease 2019: a short-term, self-controlled study. J Eur Acad Dermatol Venereol 2020; 34:e441-e443. [PMID: 32421878 PMCID: PMC7276886 DOI: 10.1111/jdv.16638] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Hu P, Ming B, Wu X, Dong L. AB0131 RESPIRATORY TRACT POLY(I:C) STIMULATION ACCELERATES SALIVARY GLAND IMMUNE DYSFUNCTION IN SPONTANEOUS SJOGREN’S SYNDROME ANIMAL MODEL. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.3433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Sjogren’s syndrome is one of the most common autoimmune diseases, with a prevalence of 0.33% to 0.77% in Chinese people, characterized by focal infiltration of lymphocytes in glands and the production of multiple autoantibodies. Studies have shown that virus infection may play a crucial role in the occurrence and development of this disease.Objectives:It has been shown that airway stimulation with poly(I:C) can mimic respiratory tract viral infection to some extent. Thus, this study was aimed to investigate the dynamic immune responses in salivary gland after respiratory tract poly(I:C) stimulation in NOD mice.Methods:The 5-week-old NOD mice were given respiratory tract poly(I:C) stimulation to mimic the respiratory virus infection once every other day for a total of 5 times (the total dose is 100μg), and the control group were given the same dose of sterile PBS. After 8 weeks, the mice were sacrificed to obtain and analyze the salivary gland tissues.Results:We found that the salivary gland flow rate was decreased and the blood glucose was influenced by the Viroid stimulation during the early stage in poly(I:C) stimulated group compared with that in PBS group. Accordingly, the pathological injury of salivary gland tissues in poly(I:C) stimulated group was more serious, including decreased volumes of the salivary glands, increased number of pathological focus score and the increased area of lymphocyte infiltration. Furthermore, we found that the expression of IL-33 in salivary glands of poly(I:C) stimulated NOD mice was increased, especially the expression of IL-33 in the acini and ducts. Moreover, the expression of IFN-I and IFN-II is up-regulated in salivary glands.Conclusion:The results of this study suggest that respiratory tract poly(I:C) stimulation accelerates salivary gland immune dysfunction in spontaneous sjogren’s syndrome NOD mice, which mechanisms need to be further investigated.References:[1] Pathogenetic mechanisms in the initiation and perpetuation of Sjogren’s syndrome. Nat Rev Rheumatol 2010; 6: 529-537.[2]Primary Sjögren’s Syndrome. N Engl J Med.2018 378(10):931-939.[3]Epidemiology of primary Sjögren’s syndrome: a systematic review and meta-analysis. Ann Rheum Dis 2015; 74: 1983-9.[4]Vitamin D insufficiency in a large MCTD population. Autoimmun Rev 10:317–324.[5]Epstein-Barr virus persistence and infection of autoreactive plasma cells in synovial lymphoid structures in rheumatoid arthritis. Ann Rheum Dis 72:1559–1568[6]Liew, F., Girard, J. & Turnquist, H. Interleukin-33 in health and disease. Nat Rev Immunol 16, 676–689 (2016) doi:10.1038/nri.2016.95[7]Interleukin-33 and the function of innate lymphoid cells. Trends in Immunology, August 2012, Vol. 33, No. 8[8]Increased Levels of Interleukin 33 in Sera and Synovial Fluid from Patients with Active Rheumatoid Arthritis YASUSHI MATSUYAMA et al The Journal of Rheumatology January 2010, 37 (1) 18-25[9]Potential involvement of the IL-33-ST2 axis in the pathogenesis of primary Sjogren’s syndrome, Ann Rheum Dis, 2014, 73(6): 1259-1263.[10]The Interleukin 33/ST2 axis in patients with primary Sjogren syndrome: expression in serum and salivary glands, and the clinical association, J Rheumatol, 2015, 42(2): 264-271.[11]Kok MR, Baum BJ, Tak PP, et al Use of localised gene transfer to develop new treatment strategies for the salivary component of Sjögren’s syndrome Annals of the Rheumatic Diseases 2003;62:1038-1046.Acknowledgments:NODisclosure of Interests:None declared
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Dong L, LI S, Wu Z, Wang F, Zhang S, LI Q, Yu Y, Shen L, Luo L, Ji P, Liu W, Wang T, Xiao H, Jia S, Jia Y, Xiao F, Wu L. SAT0250 CLINICAL CHARACTERISTICS AND THE DISEASE ACTIVITY OF BEHCET’S DISEASE IN CHINA: A STUDY BASED ON SMART SYSTEM OF DISEASE MANAGEMENT (SSDM). Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.1470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:Behcet´s disease (BD) is a systemic autoimmune disease that affects multiple organ systems with recurrent oral ulcers, genital ulcers and skin lesions. Behcet´s Disease Current Activity Form (BDCAF) and Electronic Medical Record-based Activity Index (EMRAI) are commonly used internationally to evaluate the disease activity of BD.Objectives:This study aimed to analyze the clinical characteristics, the level of disease activity, and the incidence of anxiety and depression for Chinese BD patients. Patients can perform self-management of disease with SSDM.Methods:SSDM is a series of doctor-patient interactive applications for self-management of patients with chronic diseases. Patients can perform self-assessment with SSDM and upload the data to their authorized doctors. The SSDM patients’ application system integrates the BDCAF and EMRAI into one scoring system. Patients could obtain scores of BDCAF and EMRAI by responding to one questionnaire through SSDM.Results:From Apr 2017 to Jan 2020, 719 BD patients from 166 hospitals used SSDM, with a mean age of 38.97±12.71 (14~81) years old, and median disease duration of 20.8 months. 719 patients performed BDCAF and EMRAI self-assessment 1321 times, 252 patients repeat assessments for 855 times. The mean score of BDCAF and EMRAI are 3.57±2.17 and 3.44±1.90, respectively. The matching degree of the two score was 0.8747.The most common clinical characteristics were oral ulcers (83.73%), ocular symptoms (62.03%), joint pain (50.07%). The comparative study between males and females revealed significant difference in the aspects of epididymitis (10.94% vs 0, p<0.001), genital ulcer (35.09% vs 44.93%, p=0.01), headache (24.15% vs 33.92%, p=0.01) and superficial thrombophlebitis (24.15% vs 33.92%, p=0.01). Table 1.Table 1.Clinical Characteristics of different systems in Chinese BD patients.Presence of clinical characteristicsTotalMalesFemalesP valueOral ulcer83.73% (602)86.42% (229)82.16% (373)0.14Genital ulcer41.31% (297)35.09% (93)44.93% (204)0.01*Epididymitis4.03% (29)10.94% (29)0 (0)<0.001**Erythema29.49% (212)29.43% (78)29.52% (134)0.98Skin lesions26.84% (193)28.68% (76)25.77% (117)0.4Superficial thrombophlebitis30.32% (218)24.15% (64)33.92% (154)0.01*Headache30.32% (218)24.15% (64)33.92% (154)0.01*Joint pain50.07% (360)51.32% (136)49.34% (224)0.61Arthritis14.60% (105)14.72% (39)14.54% (66)0.95Gastrointestinal involvement24.90% (179)27.92% (74)23.13% (105)0.15Ocular symptoms62.03% (446)62.64% (166)61.67% (180)0.79Nervous involvement23.78% (171)25.66% (68)22.69% (103)0.37Vascular involvement15.72% (113)18.11% (48)14.32% (65)0.18*P values are for the comparison between the males and females.Conclusion:Chinese BD patients can effectively perform BDCAF and EMRAI self-assessment with SSDM. The results of the assessment conducted by the two scoring systems are similar. The clinical characteristics of Chinese BD were different depending on gender.Acknowledgments: :Smart system of disease management (SSDM) was developed by Shanghai Gothic Internet Technology Co., Ltd.Disclosure of Interests:None declared
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Wu X, Ming B, Dong L. SAT0294 IL33 ACTIVATES FIBROBLASTS AND INDUCES SKIN FIBROSIS IN SYSTEMIC SCLEROSIS. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.4329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Systemic sclerosis (SSc) is a chronic immune-mediated autoimmune disease that is characterized by fibrotic changes of the skin and internal organs, which in turn leads to distortion of tissue structure and gradual loss of organ function. So far, there is still no treatment allows full recovery from this severe disorder. Therefore, it is of great social significance to study the pathogenesis of this disease and find new targets for treatment. Interleukin 33 (IL-33), which is a potent inducer of type 2 immune response, has been confirmed to be involved in the development and progression of multiple fibrotic diseases. However, the role and mechanism of IL-33 in SSc-related fibrosis remains unclear.Objectives:To clarify the role of interleukin 33 (IL-33) and its receptor Suppression of tumorigenicity 2 (ST2) in the skin fibrosis of SSc, so to provides a new target for the treatment of fibrosis in patients with SSc.Methods:The levels of IL-33 and ST2 was analysed in human samples, murine models of SSc and in cultured fibroblasts by immunohistochemistry and immunofluorescence. The functional role of IL-33 was evaluated by detecting changes in proliferation, migration, and activation of fibroblasts stimulated with recombinant IL-33 protein. MAPK and NF-κB signallings of fibroblasts were assessed by western blotting and analyses of target genes. The role of IL-33 in skin fibrosis was analysed in IL-33 deficient mice (il33−/−) and wild-type controls injected with bleomycin or NaCl.Results:The expression of IL-33 and its receptor ST2 were up-regulated in skin lesions of SSc patients (Fig 1 A-C) and bleomycin-treated mice(Fig1 D-F). Compared to the healthy skin, the skin from SSc patients expressed more ST2 on fibroblasts membrane(Fig 1 B-C). IL33 induces MAPK and IκBα activation in human dermal fibroblast(Fig 2 A), and promote proliferation, migration and production of collagen of human dermal fibroblasts, but not the release of inflammatory factors(IL-6, MCP-1)(Fig2 B-G). Mice deficient for IL33 are protected from bleomycin-induced dermal fibrosis (Fig3).Fig 1.Increased expression of IL33, ST2 in SSc patients and bleomycin-treated mice.Fig 2.IL33 induces MAPK and IκBα activation in human dermal fibroblast, and and promote proliferation, migration and production of collagen of human dermal fibroblasts.Fig 3.Mice deficient for IL33 are protected from bleomycin-induced dermal fibrosis.Conclusion:IL33 promotes skin fibrosis by activating fibroblasts, and IL33/ST2 may be an important target for the treatment of fibrosis in patients with SSc.References:[1]Ingegnoli F, Ughi N, Mihai C. Update on the epidemiology, risk factors, and disease outcomes of systemic sclerosis. Best practice & research. Clinical rheumatology. 2018;32(2):223-240.[2]Schmitz J, Owyang A, Oldham E, et al. IL-33, an interleukin-1-like cytokine that signals via the IL-1 receptor-related protein ST2 and induces T helper type 2-associated cytokines. Immunity. 2005;23(5):479-490.[3]Molofsky AB, Savage AK, Locksley RM. Interleukin-33 in Tissue Homeostasis, Injury, and Inflammation.Immunity.2015;42(6):1005-1019.Disclosure of Interests:None declared
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