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Zhu H, Ding J, Chong X, Ji C, Zhang C, Teng F, Gu Y, Qian X, Yang Z, Shen L, Gao J. 2P Molecular imaging evaluation of a novel Claudin18.2 specific monoclonal antibody labeled with radionuclide. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.01.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Niu X, Zhou Z, Yu Y, Shen L, Liu K, Bai J, Yang A, Wu L, Lu S. JICC01.12 Molecular Landscape of Primary and Acquired Resistance to Immune Checkpoint Inhibitors in Chinese Advanced Non-Small Cell Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Niu X, Zhou Z, Yu Y, Shen L, Liu K, Bai J, Yang A, Wu L, Lu S. FP12.05 Molecular Landscape of Primary and Acquired Resistance to Immune Checkpoint Inhibitors in Chinese Advanced Non-Small Cell Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.131] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Niu X, Zhou Z, Chen Z, Yu Y, Shen L, Li Z, Liu K, Bai J, Yang A, Wu L, Lu S. FP12.13 Therapeutic Index Predicts Clinical Outcome of both Treated and Treatment-Naïve NSCLC Patients Receiving Targeted- and Immune-Therapy. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Zhang Z, Wang Z, Jin L, Tan X, Wang Z, Shen L, Wei G, He D. [Effect of piRNA NU13 in regulating biological behaviors of human Wilms tumor cells in vitro]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2021; 41:184-192. [PMID: 33624590 DOI: 10.12122/j.issn.1673-4254.2021.02.04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To investigate the role of the differential piRNA NU13 derived from piwil2-induced cancer stem-like cells (piwil2-iCSCs) in regulating biological behaviors of Wilms tumor cells (G401). OBJECTIVE The expressions of piRNA NU13 and NOP56 were detected in Wilms tumor cell line G401 using RT-qPCR. G401 cells were transfected with piRNA NU13 mimics and inhibitor for its over-expression and inhibition, and the transfection efficiency was verified with RT-qPCR. The changes in proliferation of G401 cells after transfection were detected using CCK8 assay, and cell apoptosis was analyzed using flow cytometry. Wound healing assay and Transwell assay were performed to examine the changes in migration and invasion abilities of the transfected cells. The binding of NOP56 and piRNA NU13 was detected using dual luciferase experiment. The protein expressions of MMP2, MMP9, BAX, Bcl2, and NOP56 in the cells were detected with Western blotting. OBJECTIVE RTqPCR showed that the expression of piRNA NU13 decreased significantly in human Wilms tumor G401 cells as compared with that in renal tubular epithelial cell line HK2 (P < 0.05), and NOP56 was highly expressed in G401 cells and Wilms tumor tissues (P < 0.05). Over-expression of piRNA NU13 significantly suppressed the proliferation, migration and invasion of G401 cells, promoted cell apoptosis (P < 0.05), inhibited the expression of MMP2, MMP9 and Bcl2, and enhanced the expression of BAX (P < 0.05). The results of dual luciferase experiment showed that piRNA NU13 did not bind to NOP56 directly but regulated the expression of NOP56 in an indirect manner. OBJECTIVE piRNA NU13 is down-regulated and NOP56 is highly expressed in Wilms tumor. piNU13 may regulate the expression of NOP56 indirectly to inhibit the proliferation, migration and invasion and promote apoptosis of Wilms tumor cells in vitro.
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Uz Z, Ince C, Shen L, Ergin B, van Gulik TM. Real-time observation of microcirculatory leukocytes in patients undergoing major liver resection. Sci Rep 2021; 11:4563. [PMID: 33633168 PMCID: PMC7907405 DOI: 10.1038/s41598-021-83677-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 02/01/2021] [Indexed: 12/12/2022] Open
Abstract
Ischemia/reperfusion injury and inflammation are associated with microcirculatory dysfunction, endothelial injury and glycocalyx degradation. This study aimed to assess microcirculation in the sublingual, intestinal and the (remnant) liver in patients undergoing major liver resection, to define microcirculatory leukocyte activation and its association with glycocalyx degradation. In this prospective observational study, the microcirculation was assessed at the beginning of surgery (T0), end of surgery (T1) and 24 h after surgery (T2) using Incident Dark Field imaging. Changes in vessel density, blood flow and leukocyte behaviour were monitored, as well as clinical parameters. Syndecan-1 levels as a parameter of glycocalyx degradation were analysed. 19 patients were included. Sublingual microcirculation showed a significant increase in the number of rolling leukocytes between T0 and T1 (1.5 [0.7-1.8] vs. 3.7 [1.7-5.4] Ls/C-PCV/4 s respectively, p = 0.001), and remained high at T2 when compared to T0 (3.8 [3-8.5] Ls/C-PCV/4 s, p = 0.006). The microvascular flow decreased at T2 (2.4 ± 0.3 vs. baseline 2.8 ± 0.2, respectively, p < 0.01). Duration of vascular inflow occlusion was associated with significantly higher numbers of sublingual microcirculatory rolling leukocytes. Syndecan-1 increased from T0 to T1 (42 [25-56] vs. 107 [86-164] ng/mL, p < 0.001). The microcirculatory perfusion was characterized by low convection capacity and high number of rolling leukocytes. The ability to sublingually monitor the rolling behaviour of the microcirculatory leukocytes allows for early identification of patients at risk of increased inflammatory response following major liver resection.
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Zhang CS, Yang XR, Ding W, Lu XY, Shen L, Zhao YF. [Pulmonary mucosa-associated lymphoid tissue lymphoma concurrent with lung squamous cell carcinoma: a case report and literature review]. ZHONGHUA JIE HE HE HU XI ZA ZHI = ZHONGHUA JIEHE HE HUXI ZAZHI = CHINESE JOURNAL OF TUBERCULOSIS AND RESPIRATORY DISEASES 2021; 43:1071-1076. [PMID: 33333642 DOI: 10.3760/cma.j.cn112147-20200729-00859] [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 explore the clinical manifestations, imaging features, pathological features, diagnosis and treatment of pulmonary mucosal-associated lymphoid tissue(MALT)lymphoma concurrent with lung squamous cell carcinoma, and to improve the understanding of this disease. Methods: Using "Pulmonary mucosa-associated lymphoid tissue, squamous cell carcinoma" as the search term, from January 1, 1983 to August 31, 2020, a total of 3 cases were retrieved in the PubMed database. In the Wanfang database, using "Lung mucosa-associated lymphoid tissue, lung squamous cell carcinoma" as the search term, from January 1, 1990 to August 31, 2020, a total of 1 related document was retrieved. In the CNKI database, "(lung) mucosa-associated lymphoid tissue lymphoma, (lung) squamous cell carcinoma" was used as the search term, and no relevant case reports were retrieved. Results: A 64-year-old man was admitted to the hospital because of chest tightness and shortness of breath for 10 days, cough and fever for one day. Enhanced CT of the chest showed a soft tissue mass shadow in the right lower hilar area, with obstruction of the adjacent bronchus, and local mild enhancement, suggesting of right lower lung cancer. In addition, the CT scan also showed consolidated shadows in the lower lobes of both lungs, scattered nodules, multiple lymphadenopathy in the mediastinum, and a small amount of pleural effusion on the right. Under bronchoscopy, a cauliflower-like neoplasm was seen at the opening of the lower right basal section, about 7 mm×8 mm, and biopsy showed that part of the mucosal structure was destroyed, with disappearance of the squamous epithelial layer, and the nuclei were large and deeply stained, and some were distributed in nests, with poor keratinization and a small amount of necrosis, and fibrous tissue reaction. Immunostaining revealed that the tumor was positive for p40, CK5/6 and EGFR and negative forTTF-1, NapsinA, PD-L1, p53, with about 30% Ki-67 positive cells. A puncture biopsy of the right lower lobe showed that the alveolar cavity was filled with nested lymphoid cells, consisting of small lymphocytes, central cell-like cells and monocyte-like cells, with occasionally large cells. Immunostaining revealed CD20+, CD79a+, scattered CD3+, Bcl2+, SMA vascular+, Bcl6-, CK-, CD10-, CyclinD1-, with about 3% Ki-67 positive cells. The histopathological examinations confirmed the diagnosis of mucosal-associated lymphoid tissue extranodal marginal zone lymphoma(MALT lymphoma),and lung squamous cell carcinoma. Conclusions: Pulmonary mucosa-associated lymphoid tissue lymphoma complicated with lung squamous cell carcinoma is rare and easy to be missed and misdiagnosed. Chest CT imaging shows single or multiple nodules, mass shadows or consolidation, often accompanied by air-bronchial signs in the lesion, bronchiectasis, ground glass density around the lesion, hilar and mediastinal lymphadenopathy. Occasionally, pleural effusion can be seen. Lung biopsy is the gold standard for diagnosis.
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Qi CS, Cheng SY, Shen L. [Current status and research progress of third-line treatment for patients with gastric cancer in China]. ZHONGHUA ZHONG LIU ZA ZHI [CHINESE JOURNAL OF ONCOLOGY] 2020; 42:983-988. [PMID: 33342152 DOI: 10.3760/cma.j.cn112152-20190910-00589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Gastric cancer (GC) is one of the most common malignant tumors in the world. The prognosis of advanced GC is extremely poor, characterized by the high recurrence or disease progression rate after the first-line chemotherapy, and the extremely low long-term survival rate. Meanwhile, the options for subsequent treatment are limited. Studies have shown that the third-line therapy can provide significant survival benefits for selected patients with advanced GC. Currently, a series of randomized controlled trials and real-world studies related to chemotherapy, targeted therapy, and immunotherapy are conducted. In addition, the explorations of combination therapy, and screening the optimal clinical features or predictive biomarkers for the suitable population who might benefit from the third-line regimens are the hot spots for researchers. This article will provide a detailed overview of the current status and progress of the third-line treatment for advanced GC, and to illustrate the characteristics of Chinese GC treatment.
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Han W, Zheng M, Banerjee A, Luo YZ, Shen L, Khursheed A. Quantitative material analysis using secondary electron energy spectromicroscopy. Sci Rep 2020; 10:22144. [PMID: 33335154 PMCID: PMC7746715 DOI: 10.1038/s41598-020-78973-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 12/02/2020] [Indexed: 11/09/2022] Open
Abstract
This paper demonstrates how secondary electron energy spectroscopy (SEES) performed inside a scanning electron microscope (SEM) can be used to map sample atomic number and acquire bulk valence band density of states (DOS) information at low primary beam voltages. The technique uses an electron energy analyser attachment to detect small changes in the shape of the scattered secondary electron (SE) spectrum and extract out fine structure features from it. Close agreement between experimental and theoretical bulk valance band DOS distributions was obtained for six different test samples, where the normalised root mean square deviation ranged from 2.7 to 6.7%. High accuracy levels of this kind do not appear to have been reported before. The results presented in this paper point towards SEES becoming a quantitative material analysis companion tool for low voltage scanning electron microscopy (LVSEM) and providing new applications for Scanning Auger Microscopy (SAM) instruments.
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He B, Yang X, Xie M, Shen L. The value of coronary artery calcium scores based on non-gated chest CT in predicting perioperative cardiovascular risk in patients with lower-risk lung cancer surgery. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Objectives
This study evaluated whether coronary artery calcium scores (CACS) that were measured with non-gated chest CT predicted perioperative cardiovascular events in patients who were undergoing lower-risk lung cancer surgery.
Method
In this retrospective single center study, we evaluated 3112 consecutive lung cancer patients with non-gated chest CT before low-medium risk surgeries in 2017. We measured CACS and assessed clinical risk factors according to the revised cardiac risk index (RCRI) scores and predictable surgery factors. Perioperative cardiovascular events were defined as cardiac death, acute coronary syndrome, pulmonary edema, atrial and ventricular arrhythmia with hemodynamic compromise, and complete heart block during hospitalization.
Result
83 patients (2.7%) had perioperative cardiac events, 71 (85.5%) of them were atrial fibrillation. Coronary calcification CT findings were seen in 761 (24.5%) patients. CACS were associated with incidence of cardiac events (p<0.001). In the receiver-operating characteristic (ROC) curve analysis of CACS for prediction of cardiac events, the cutoff value was 1 (sensitivity, 0.60; specificity, 0.75; area under the curve, 0.680). In the multivariate analysis, CACS >1 (OR=1.75, 95% CI: 1.08–2.84, p=0.023), age (OR=1.06, 95% CI: 1.03–1.10, p<0.001), pulmonary function classification (p<0.001) and thoracotomy (OR=3.06, 95% CI: 1.78–5.26, p<0.001) were predictive of cardiovascular complications.
Conclusion
Predicative value of CACS based on non-gated chest CT is high for perioperative cardiovascular risk in lung cancer patients with lower-risk lung surgery. It may be considered as a valuable tool for preoperative risk assessment in these patients without additional testing.
Funding Acknowledgement
Type of funding source: None
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Xia F, Han X, Wan J, Shen L, Wang J, Zhu J, Hu W, Zhang Z. Efficacy and Safety Outcomes Of Using Stereotactic Ablative Radiotherapy For Oligometastatic Lesions From Colorectal Cancer. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Xu K, Zheng X, Cai J, Chan N, Shen L, He B. PEAR1 rs12041331 polymorphisms and the risk of adverse cardiovascular outcomes in patients with acute coronary syndrome and/or percutaneous coronary intervention: a systematic review and meta-analysis. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Background
Platelet endothelial aggregation receptor-1 (PEAR1), expressed in endothelium, platelets, and other tissues, is a platelet transmembrane tyrosine kinase receptor involved in platelet aggregation and platelet-platelet contact. The minor allele (A) in intron 1 of the PEAR1 gene (rs12041331, G>A) is associated with an reduced PEAR1 protein expression and suppressed platelet aggregation response toward multiple agonists. But current evidences on the association between PEAR1 rs12041331 polymorphisms and cardiovascular outcomes in patients with acute coronary syndrome (ACS) and/or percutaneous coronary intervention (PCI) are discordant.
Purpose
To characterize and quantify the association between PEAR1 rs12041331 polymorphisms and cardiovascular outcomes in patients with ACS and/or PCI.
Methods
We conducted a systematic review and meta-analysis by searching MEDLINE via PubMed, EMBASE, Cochrane Central Register of Controlled Trials, SinoMed, CNKI, and Wanfang Data before Dec 7, 2019 to identify studies evaluating the association between PEAR1 rs12041331 polymorphisms and cardiovascular outcomes in patients with ACS and/or PCI. The primary outcome was the major adverse cardiovascular outcomes (MACEs) defined by each study. We adopted the Mantel-Haenszel method to calculate the relative risks (RRs) with 95% confidence intervals (CIs) and the corresponding P values using the random effect model. To assess the effect of ethnicity, we performed the subgroup analyses per ethnic population using the fix effect model.
Results
Among 542 citations identified along with 1 from additional sources, we included 4 studies, which documented 218 MACEs in 8180 patients. The A allele frequency in each study was comparable with that reported in the 1000 Genome Project, but varied among ethnic populations, that is 45.8% in East Asians, 46.5% in American Africans, and 9.2% in Caucasians, adopted from the 1000 Genome Project. A-allele carriers are associated with a 54% increase in MACEs than non-A-carriers (RR, 1.54; 95% CI, 1.10–2.16; P=0.01) with a low but non-significant heterogeneity. Subgroup analyses showed that A-allele carriers tend to have more MACEs than non-A-allele carriers despite of ethnicity, that is 1.32-fold increase in East Asians (RR, 1.32; 95% CI, 0.99–1.77; P=0.06), 2.43-fold in Caucasians (RR, 2.43; 95% CI, 0.99–5.98; P=0.05), and 3.56-fold (RR, 3.56; 95% CI, 1.08–11.70; P=0.04) in American Africans.
Conclusions
Our study indicates that the PEAR1 rs12041331 is prognostic in patients with ACS and/or PCI and treated with DAPT, which might be not caused by the associations with pharmacological response to antiplatelet agents. Further investigations are thus required to address the unrevealing mechanisms of PEAR1, especially on the development of atherosclerosis and the occurrence of acute adverse ischemic events.
Figure 1
Funding Acknowledgement
Type of funding source: None
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Shen L, Yi Y, Wang Y, Zhang J, Xia F, Zhang Z. Gut Microbiome Predicts Neoadjuvant Chemoradiotherapy Response in Locally Advanced Rectal Cancer Patients. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2161] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Zhou J, Zong Y, Yuan J, Peng Z, Lu M, Wang X, Shen L. 194P Nab-paclitaxel plus capecitabine as first-line treatment for patients with recurrence or metastatic biliary tract cancer. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Deng Y, Dai Y, Zhang H, Zhang J, Li G, Shen L, Zhang Z. 102P Colorectal cancer organoids culture exploits new neoadjuvant therapy resistance mechanisms and therapeutic targets. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Yi Y, Shen L, Shi W, Xia F, Zhang H, Wang Y, Zhang J, Wang Y, Sun X, Zhang Z, Zou W, Yang W, Zhang L, Ma Y, Zhang Z. 80MO Gut microbiome analysis for predicting neoadjuvant chemoradiotherapy response in locally advanced rectal cancer patients. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Yang W, Zhou M, Li G, Shen L, Wang Y, Wang Y, Zhang J, Zhang Z. Preoperative Chemoradiotherapy Versus Perioperative Chemotherapy For Patients With Locally Advanced Gastric Cancer: A Retrospective Study Based On Propensity Score Analyses. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1953] [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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Demetri GD, Antonescu CR, Bjerkehagen B, Bovée JVMG, Boye K, Chacón M, Dei Tos AP, Desai J, Fletcher JA, Gelderblom H, George S, Gronchi A, Haas RL, Hindi N, Hohenberger P, Joensuu H, Jones RL, Judson I, Kang YK, Kawai A, Lazar AJ, Le Cesne A, Maestro R, Maki RG, Martín J, Patel S, Penault-Llorca F, Premanand Raut C, Rutkowski P, Safwat A, Sbaraglia M, Schaefer IM, Shen L, Serrano C, Schöffski P, Stacchiotti S, Sundby Hall K, Tap WD, Thomas DM, Trent J, Valverde C, van der Graaf WTA, von Mehren M, Wagner A, Wardelmann E, Naito Y, Zalcberg J, Blay JY. Diagnosis and management of tropomyosin receptor kinase (TRK) fusion sarcomas: expert recommendations from the World Sarcoma Network. Ann Oncol 2020; 31:1506-1517. [PMID: 32891793 PMCID: PMC7985805 DOI: 10.1016/j.annonc.2020.08.2232] [Citation(s) in RCA: 92] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 08/20/2020] [Accepted: 08/21/2020] [Indexed: 12/22/2022] Open
Abstract
Sarcomas are a heterogeneous group of malignancies with mesenchymal lineage differentiation. The discovery of neurotrophic tyrosine receptor kinase (NTRK) gene fusions as tissue-agnostic oncogenic drivers has led to new personalized therapies for a subset of patients with sarcoma in the form of tropomyosin receptor kinase (TRK) inhibitors. NTRK gene rearrangements and fusion transcripts can be detected with different molecular pathology techniques, while TRK protein expression can be demonstrated with immunohistochemistry. The rarity and diagnostic complexity of NTRK gene fusions raise a number of questions and challenges for clinicians. To address these challenges, the World Sarcoma Network convened two meetings of expert adult oncologists and pathologists and subsequently developed this article to provide practical guidance on the management of patients with sarcoma harboring NTRK gene fusions. We propose a diagnostic strategy that considers disease stage and histologic and molecular subtypes to facilitate routine testing for TRK expression and subsequent testing for NTRK gene fusions.
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Fu HY, Shen L, Gao XS, Cui DX, Cui ZY. SF1670 inhibits apoptosis and inflammation via the PTEN/Akt pathway and thus protects intervertebral disc degeneration. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2020; 24:8694-8702. [PMID: 32964957 DOI: 10.26355/eurrev_202009_22806] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Intervertebral disc degeneration (IVDD) is associated with the apoptosis of nucleus pulposus (NP) cells. Previous studies have shown that PTEN plays crucial roles in cell survival and apoptosis. The effect of PTEN inhibitors on cell survival following IVDD has been rarely examined. In this study, we investigated the protective effect of SF1670, as a specific PTEN inhibitor, on an in vitro NP cells degenerated model. PATIENTS AND METHODS We collected human disc samples from IVDD patients and detected PTEN expression in them with different degenerated degrees. NP cells were isolated from the samples and exposed to IL-1β with or without SF1670. Then, cells viability was determined by CCK-8 assay. We also measured the levels of collagen II, p16, p53, PTEN, Akt, aggrecan, caspase 3/9, Bax, Bcl-2, and several inflammatory factors in NP cells. RESULTS We found that the expression of PTEN markedly increased in severely degenerated disc tissues. The data showed that IL-1β upregulated the expressions of p16, p53, PTEN, caspase 3/9, and Bax, but decreased the expressions of collagen II, Akt, aggrecan, and Bcl-2. Surprisingly, the treatment with SF1670 could significantly reverse the regulatory effects of IL-1β. Moreover, relative levels of IL-6, IL-8, TNF-α, and MMP3/9/13 were significantly suppressed by SF1670 stimuli compared with IL-1β group. CONCLUSIONS Overall, these results demonstrated that SF1670 prevented NP degradation via suppressing apoptosis and inflammation through inhibition of PTEN and activation of Akt. SF1670 may become a novel target for the therapy of IVDD in the future.
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Xu R, Zhou Y, Cai L, Wang L, Han J, Yang X, Chen J, Chen J, Ma C, Shen L. Co-reactivation of the human herpesvirus alpha subfamily (herpes simplex virus-1 and varicella zoster virus) in a critically ill patient with COVID-19. Br J Dermatol 2020; 183:1145-1147. [PMID: 32790074 PMCID: PMC7436688 DOI: 10.1111/bjd.19484] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 08/04/2020] [Accepted: 08/06/2020] [Indexed: 12/25/2022]
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Chi J, Ji YD, Shen L, Yin SN, Ding N, Chen XF, Xu DF. Low-dose CT of paediatric paranasal sinus using an ultra-low tube voltage (70 kVp) combined with the flash technique. Clin Radiol 2020; 76:77.e17-77.e21. [PMID: 32950256 DOI: 10.1016/j.crad.2020.08.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Accepted: 08/20/2020] [Indexed: 10/23/2022]
Abstract
AIM To evaluate the radiation dose and diagnostic image quality of low-dose computed tomography (CT) of the paranasal sinus in children, with acquisition at an ultra-low tube voltage (70 kVp) combined with the Flash technique. MATERIALS AND METHODS Eighty paediatric patients underwent CT of the paranasal sinus and were divided into two groups according to different protocols (group A: 80 kVp protocol with conventional spiral mode [n=40] and group B: 70 kVp protocol with Flash scan mode [n=40]). For each examination, the CT dose index (CTDIvol), dose-length product (DLP), and effective dose (ED) were estimated. The image noise, signal-to-noise ratio (SNR), and overall subjective diagnostic image quality were also evaluated. RESULTS For radiation dose, the CTDIvol (mGy), DLP (mGy·cm), and ED (mSv) values of the 70 kVp protocol were significantly lower than those of the 80 kVp protocol (CTDIvol: 1.57±0.009 versus 0.39±0.004 mGy, p<0.001; DLP: 19.88±2.01 versus 6.31±0.52 mGy·cm, p<0.001; ED: 0.079±0.016 versus 0.024±0.005 mSv, p<0.001). Compared with those of the 80-kVp protocol, the image noise increased by 40.7% (p=0.113), the SNRsoft-tissue decreased by 48.9%, and the SNRbone increased by 10.1% with the 70-kVp protocol (p=0.176 and 0.227, respectively). There was no significant difference in the overall subjective image quality grades between these two groups (p=0.15). CONCLUSION When imaging the paranasal sinus in children, an ultra-low tube voltage (70 kVp) combined with the Flash CT technique can reduce the radiation dose significantly while maintaining diagnostic image quality with clinically acceptable image noise.
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Cui R, Yang WL, Chen W, Li DJ, Wang ZY, Zhao Q, Li YF, Shen L, Liu Q, Wei WB, Xian JF. [The value of ultrasonic elastography in the differential diagnosis of choroidal melanoma and choroidal hemangioma]. [ZHONGHUA YAN KE ZA ZHI] CHINESE JOURNAL OF OPHTHALMOLOGY 2020; 56:676-680. [PMID: 32907300 DOI: 10.3760/cma.j.cn112142-20200308-00160] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Objective: To explore the role of the scoring and strain ratio methods of ultrasonic elastography in the differential diagnosis of choroidal melanoma and choroidal hemangioma. Methods: A cross-sectional study. Twenty-five patients (25 eyes) with choroidal melanoma treated in the Department of Ophthalmology, Beijing Tongren Hospital, Capital Medical University from July to October 2016 were included in this study. There were 13 males and 12 females, with an average age of (48±12) years old. Twenty-five patients (25 eyes) with choroidal hemangioma treated in the same period were selected for differential diagnosis, including 12 males and 13 females, with an average age of (37±13) years. The lesions were examined by ultrasound elastography and scored, and the strain ratio of the tumor to the orbital tissue was measured. Two independent sample t test was used to compare the difference in the elasticity score and strain ratio between choroidal melanoma and choroidal hemangioma. The sensitivity, specificity and area under the receiver operating characteristic (ROC) curve were calculated to analyze the value of the two methods in the differential diagnosis of choroidal melanoma and choroidal hemangioma. Results: The elastography score of choroidal melanoma was (3.48±0.77) points, including 2 points in 3 cases, 3 points in 8 cases, 4 points in 13 cases, and 5 points in 1 case. The elastography score of hemangioma was (2.28±0.46) points, including 2 points in 18 cases and 3 points in 7 cases. The difference in the elasticity score between patients with the two kinds of tumors was statistically significant (t=6.694, P<0.01). The strain ratio was 42.97±15.83 and 12.21±9.24 in the patients with choroidal melanoma and choroidal hemangioma, respectively, and the difference was statistically significant (t=8.392, P<0.01). Using 3 points as the diagnostic critical point of the elastography score, the sensitivity was 88.0%, the specificity was 72.0%, and the area under the ROC curve was 0.80 (95% cofidence interval: 0.663 to 0.900, P<0.01). Using 21.67 as the diagnostic critical point of the strain ratio, the sensitivity was 92.0%, the specificity was 92.0%, and the area under the ROC curve was 0.92 (95% cofidence interval: 0.808 to 0.978, P<0.01). Conclusions: Ultrasound elastography plays a role in the differential diagnosis of choroidal melanoma and choroidal hemangioma. The differential diagnostic value of the strain ratio method is higher than the scoring method. (Chin J Ophthalmol, 2020, 56: 676-680).
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Shen L, Zhang Y, Guo Y, Li W, Gong J, Ma Z, Peng W, Wang N, Ni J, Qi Q, Ma Y, Qin Z, Tse A. 987P A phase Ib study of the PD-1 antagonist CS1003 plus lenvatinib (LEN) in Chinese patients (pts) with the first-line (1L) unresectable hepatocellular carcinoma (uHCC). Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1103] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Moehler M, Shitara K, Garrido M, Salman P, Shen L, Wyrwicz L, Yamaguchi K, Skoczylas T, Campos Bragagnoli A, Liu T, Schenker M, Yanez P, Tehfe M, Poulart V, Cullen D, Lei M, Kondo K, Li M, Ajani J, Janjigian Y. LBA6_PR Nivolumab (nivo) plus chemotherapy (chemo) versus chemo as first-line (1L) treatment for advanced gastric cancer/gastroesophageal junction cancer (GC/GEJC)/esophageal adenocarcinoma (EAC): First results of the CheckMate 649 study. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.2296] [Citation(s) in RCA: 137] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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Hu Q, Shen L, Guo X, Hu X, Liu Z, Zhao G. A Microfluidic Approach for Cryoprotectant Screening: Preliminary Validation with Human Red Blood Cells. CRYO LETTERS 2020; 41:303-307. [PMID: 33988669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
BACKGROUND The application of microfluidics has overcome a series of long-term existing bottlenecks in the field of cryobiology. However, there is still no investigation regarding the on-chip rapid screening of cryoprotectant concentration optimization for the integration of the entire freeze, thaw and cell counting process. OBJECTIVE To establish an on-chip approach for rapid cryoprotectant screening and concentration optimization. MATERIALS AND METHODS Rapid freezing of red blood cells with glycerol and dimethyl sulfoxide was used to validate the proposed on-chip method. RESULTS The optimal cryoprotectant and its concentration can be determined with the described method, without the need of additional samplings and assays. The optimal concentration for glycerol and dimethyl sulfoxide used in the validation experiments was 10% (w/v). CONCLUSION The microfluidic approach can be used for rapid cryoprotectant screening and concentration optimization.
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