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Cao W, Lan J, Hu C, Kong J, Xiang L, Zhang Z, Sun Y, Zeng Z, Lei S. Predicting the prognosis of glioma patients with TERT promoter mutations and guiding the specific immune profile of immune checkpoint blockade therapy. Aging (Albany NY) 2024; 16:5618-5633. [PMID: 38499392 PMCID: PMC11006486 DOI: 10.18632/aging.205668] [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: 09/01/2023] [Accepted: 12/26/2023] [Indexed: 03/20/2024]
Abstract
The telomerase reverse transcriptase promoter (TERTp) is frequently mutated in gliomas. This study sought to identify immune biomarkers of gliomas with TERTp mutations. Data from TCGA were used to identify and validate survival-associated gene signatures, and immune and stromal scores were calculated using the ESTIMATE algorithm. High stromal or immune scores in patients with TERTp-mutant gliomas correlated with shorter overall survival compared to cases with low stromal or immune scores. Among TERTp-mutant gliomas with both high immune and high stromal scores, 213 commonly shared DEGs were identified. Among 71 interacting DEGs representing candidate hub genes in a PPI network, HOXC6, WT1, CD70, and OTP showed significant ability in establishing subgroups of high- and low-risk patients. A risk model based on these 4 genes showed strong prognostic potential for gliomas with mutated TERTp, but was inapplicable for TERTp-wild-type gliomas. TERTp-mutant gliomas with high-risk scores displayed a greater percentage of naïve B cells, plasma cells, naïve CD4 T cells, and activated mast cells than low-risk score gliomas. TIDE analysis indicated that immune checkpoint blockade (ICB) therapy may benefit glioma patients with TERTp mutations. The present risk model can help predict prognosis of glioma patients with TERTp mutations and aid ICB treatment options.
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Affiliation(s)
- Wenpeng Cao
- Department of Anatomy, School of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou 550025, China
- Key Laboratory of Human Brain Bank for Functions and Diseases of Department of Education of Guizhou, Guizhou Medical University, Guiyang, Guizhou 550025, China
| | - Jinzhi Lan
- Center for Tissue Engineering and Stem Cell Research, Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - Chujiao Hu
- Department of Physiology, School of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou 550025, China
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, Guizhou 550025, China
- Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guiyang, Guizhou 550025, China
| | - Jinping Kong
- Department of Physiology, School of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou 550025, China
| | - Limin Xiang
- Department of Physiology, School of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou 550025, China
| | - Zhixue Zhang
- Department of Physiology, School of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou 550025, China
| | - Yating Sun
- Department of Physiology, School of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou 550025, China
| | - Zhirui Zeng
- Department of Physiology, School of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou 550025, China
| | - Shan Lei
- Department of Physiology, School of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou 550025, China
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Chen F, Tang H, Cai X, Lin J, Xiang L, Kang R, Liu J, Tang D. Targeting paraptosis in cancer: opportunities and challenges. Cancer Gene Ther 2024; 31:349-363. [PMID: 38177306 DOI: 10.1038/s41417-023-00722-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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 12/07/2023] [Accepted: 12/12/2023] [Indexed: 01/06/2024]
Abstract
Cell death can be classified into two primary categories: accidental cell death and regulated cell death (RCD). Within RCD, there are distinct apoptotic and non-apoptotic cell death pathways. Among the various forms of non-apoptotic RCD, paraptosis stands out as a unique mechanism characterized by distinct morphological changes within cells. These alterations encompass cytoplasmic vacuolization, organelle swelling, notably in the endoplasmic reticulum and mitochondria, and the absence of typical apoptotic features, such as cell shrinkage and DNA fragmentation. Biochemically, paraptosis distinguishes itself by its independence from caspases, which are conventionally associated with apoptotic death. This intriguing cell death pathway can be initiated by various cellular stressors, including oxidative stress, protein misfolding, and specific chemical compounds. Dysregulated paraptosis plays a pivotal role in several critical cancer-related processes, such as autophagic degradation, drug resistance, and angiogenesis. This review provides a comprehensive overview of recent advancements in our understanding of the mechanisms and regulation of paraptosis. Additionally, it delves into the potential of paraptosis-related compounds for targeted cancer treatment, with the aim of enhancing treatment efficacy while minimizing harm to healthy cells.
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Affiliation(s)
- Fangquan Chen
- DAMP Laboratory, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, 510150, China
| | - Hu Tang
- DAMP Laboratory, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, 510150, China
| | - Xiutao Cai
- DAMP Laboratory, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, 510150, China
| | - Junhao Lin
- DAMP Laboratory, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, 510150, China
| | - Limin Xiang
- DAMP Laboratory, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, 510150, China
| | - Rui Kang
- Department of Surgery, UT Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Jiao Liu
- DAMP Laboratory, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, 510150, China.
| | - Daolin Tang
- Department of Surgery, UT Southwestern Medical Center, Dallas, TX, 75390, USA.
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Wei Y, Long S, Zhao M, Zhao J, Zhang Y, He W, Xiang L, Tan J, Ye M, Tan W, Yang Y, Yuan Q. Regulation of Cellular Signaling with an Aptamer Inhibitor to Impede Cancer Metastasis. J Am Chem Soc 2024; 146:319-329. [PMID: 38129955 DOI: 10.1021/jacs.3c09091] [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] [Indexed: 12/23/2023]
Abstract
Tumor invasion and metastasis are the main causes of tumor progression and are the leading causes of death among cancer patients. In the present study, we propose a strategy to regulate cellular signaling with a tumor metastasis-relevant cytoskeleton-associated protein 4 (CKAP4) specific aptamer for the achievement of tumor metastasis inhibition. The designed aptamer could specifically bind to CKAP4 in the cell membranes and cytoplasm to block the internalization and recycling of α5β1 integrin, resulting in the disruption of the fibronectin-dependent cell adhesion and the weakening of the cell traction force. Moreover, the aptamer is able to impede the interaction between CKAP4 and Dickkopf1 (DKK1) to further block the phosphatidylinositol 3-kinase (PI3K)/protein kinase B (AKT) signaling pathway, which subsequently reduces AKT phosphorylation and inhibits the reorganization of the actin cytoskeleton in cell migration. The synergetic function of the designed aptamer in inhibiting cancer cell adhesion and blocking the PI3K signaling pathway enables efficient tumor cell metastasis suppression. The aptamer with specific targeting ability in regulating cellular signaling paves the way for cancer treatment and further provides a guiding ideology for inhibiting tumor metastasis.
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Affiliation(s)
- Yurong Wei
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of Ministry of Education, Institute of Molecular Medicine, Renmin Hospital of Wuhan University, School of Microelectronics, Wuhan University, Wuhan 430072, P. R. China
| | - Shiyi Long
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of Ministry of Education, Institute of Molecular Medicine, Renmin Hospital of Wuhan University, School of Microelectronics, Wuhan University, Wuhan 430072, P. R. China
| | - Min Zhao
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of Ministry of Education, Institute of Molecular Medicine, Renmin Hospital of Wuhan University, School of Microelectronics, Wuhan University, Wuhan 430072, P. R. China
| | - Jingfang Zhao
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of Ministry of Education, Institute of Molecular Medicine, Renmin Hospital of Wuhan University, School of Microelectronics, Wuhan University, Wuhan 430072, P. R. China
| | - Yun Zhang
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of Ministry of Education, Institute of Molecular Medicine, Renmin Hospital of Wuhan University, School of Microelectronics, Wuhan University, Wuhan 430072, P. R. China
| | - Wang He
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of Ministry of Education, Institute of Molecular Medicine, Renmin Hospital of Wuhan University, School of Microelectronics, Wuhan University, Wuhan 430072, P. R. China
| | - Limin Xiang
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of Ministry of Education, Institute of Molecular Medicine, Renmin Hospital of Wuhan University, School of Microelectronics, Wuhan University, Wuhan 430072, P. R. China
| | - Jie Tan
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Mao Ye
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Weihong Tan
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Yanbing Yang
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of Ministry of Education, Institute of Molecular Medicine, Renmin Hospital of Wuhan University, School of Microelectronics, Wuhan University, Wuhan 430072, P. R. China
| | - Quan Yuan
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of Ministry of Education, Institute of Molecular Medicine, Renmin Hospital of Wuhan University, School of Microelectronics, Wuhan University, Wuhan 430072, P. R. China
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
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Xiang L, Cheng YP, Wang J, Wu YN, Chen R. [Effects of obstructive sleep apnea syndrome on myocardial work and prognosis in patients with acute myocardial infarction]. Zhonghua Yi Xue Za Zhi 2023; 103:3946-3953. [PMID: 38129172 DOI: 10.3760/cma.j.cn112137-20230401-00525] [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: 12/23/2023]
Abstract
Objective: To investigate the influence of obstructive sleep apnea syndrome (OSAS) on myocardial work and prognosis in patients with acute myocardial infarction (AMI). Methods: Patients with complete follow-up data diagnosed with AMI who were admitted to the Second Affiliated Hospital of Suzhou University due to chest pain within 24 hours attacks from February 2020 to January 2022 were retrospective enrolled in the study and were split into two groups based on sleep apnea hypoventilation index (AHI): OSAS group (AHI≥5/h) and non-OSAS group (AHI<5/h). Follow up for (12.4±0.1) months. There were finally 210 AMI patients including 130 males and 80 females with (69.6±9.4) years, ranging from 36 to 83 years. The general characteristics, haematological index, echocardiographic parameters, myocardial work (MW) and the occurrence of major adverse cardiac events (MACE) in 1 year between the two groups were quantified. Logistic regression analysis and receiver operating characteristic (ROC) curve were used to assess the risk of MACE in patients with AMI. Results: There were 50 cases in the OSAS group and 160 cases in the non-OSAS group. Compared with the non-OSAS group, OSAS group demonstrated higher BMI,neck circumference, Killip grade,GRACE score,ESS score,SYNTAX score, the number of diseased vessels and higher prevalence of hypertension, hyperlipidemia and smoking history. The differences were statistically significant (P<0.05). There were also statistically significant differences in sleep study result and hematological indexesof of cTnT, NT-ProBNP, and creatinine between the two groups (P<0.05). The general work index (GWI) of the OSAS group was lower than that of the non-OSAS group [(870.1±435.6) vs (1 005.0±313.6) mmHg% (1 mmHg=0.133 kPa), P=0.017]; The general myocardial active work (GCW) of the OSAS group was lower than that of the non-OSAS group [(1 046.7±472.2) vs (1 262.7±274.9) mmHg%, P=0.003]; The general work efficiency (GWE) of the OSAS group was lower than that of the non-OSAS group [(79.8±14.2)% vs (84.5±5.8)%, P=0.001]; The general reactive power (GWW) of the OSAS group was higher than that of the non-OSAS group [(312.2±163.2) vs (264.0±85.1) mmHg%, P=0.007]. There were 10 cases (20.0%) of MACE in the OSAS group and 13 cases (8.1%) in the non OSAS group, with a statistically significant difference (P=0.001).The combination of decreased OSAS (OR=4.039, 95%CI: 1.159-6.918), decreased myocardial work, including GCW [OR=0.850 (95%CI: 0.742-0.958)], GWE [OR=0.871 (95%CI: 0.818-0.924)], GWI (OR=0.862, 95%CI: 0.732-0.991), increased GWW (OR=2.425, 95%CI: 1.482-3.368), and increased GRACE score (OR=3.775, 95%CI: 2.314-5.236) increased the risk of MACE in AMI patients (all P<0.05). The area under the ROC curve (AUC) for predicting MACE in AMI using OSAS+myocardial work+GRACE score was 0.779 (95%CI: 0.717-0.834), with a sensitivity of 65.2% and a specificity of 84.5%. After the combination of the three, there were statistically significant differences compared to the AUC of combined OSAS, GRACE score, and myocardial work (all P<0.05). Conclusions: The MW of AMI patients with OSAS decreased compared to those without OSAS. The combination of OSAS and MW can improve the predictive value of MACE in patients with AMI.
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Affiliation(s)
- L Xiang
- Department of Cardiology, the Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - Y P Cheng
- Department of Respiratory, the Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - J Wang
- Department of Respiratory, the Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - Y N Wu
- Department of Cardiology, the Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - R Chen
- Department of Respiratory, the Second Affiliated Hospital of Soochow University, Suzhou 215004, China
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Duan ZJ, Feng J, Zhao HQ, Wang HD, Gui QP, Zhang XF, Ma Z, Hu ZJ, Xiang L, Qi XL. [Plurihormonal PIT1-lineage pituitary neuroendocrine tumors: a clinicopathological study]. Zhonghua Bing Li Xue Za Zhi 2023; 52:1017-1024. [PMID: 37805393 DOI: 10.3760/cma.j.cn112151-20230216-00137] [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: 10/09/2023]
Abstract
Objective: To investigate the clinicopathological characteristics of plurihormonal PIT1-lineage pituitary neuroendocrine tumors. Methods: Forty-eight plurihormonal PIT1-lineage tumors were collected between January 2018 and April 2022 from the pathological database of Sanbo Brain Hospital, Capital Medical University. The related clinical and imaging data were retrieved. H&E, immunohistochemical and special stains were performed. Results: Out of the 48 plurihormonal PIT1-lineage tumors included, 13 cases were mature PIT1-lineage tumors and 35 cases were immature PIT1-lineage tumors. There were some obvious clinicopathological differences between the two groups. Clinically, the mature plurihormonal PIT1-lineage tumor mostly had endocrine symptoms due to increased hormone production, while a small number of immature PIT1-lineage tumors had endocrine symptoms accompanied by low-level increased serum pituitary hormone; patients with the immature PIT1-lineage tumors were younger than the mature PIT1-lineage tumors; the immature PIT1-lineage tumors were larger in size and more likely invasive in imaging. Histopathologically, the mature PIT1-lineage tumors were composed of large eosinophilic cells with high proportion of growth hormone expression, while the immature PIT1-lineage tumors consisted of chromophobe cells with a relatively higher expression of prolactin; the mature PIT1-lineage tumors had consistently diffuse cytoplasmic positive staining for keratin, while the immature PIT1-lineage tumors had various expression for keratin; the immature PIT1-lineage tumors showed more mitotic figures and higher Ki-67 proliferation index; in addition, 25.0% (12/48) of PIT1-positive plurihormonal tumors showed abnormal positive staining for gonadotropin hormones. There was no significant difference in the progression-free survival between the two groups (P=0.648) by Kaplan-Meier analysis. Conclusions: Plurihormonal PIT1-lineage tumor belongs to a rare type of PIT1-lineage pituitary neuroendocrine tumors, most of which are of immature lineage. Clinically increased symptoms owing to pituitary hormone secretion, histopathologically increased number of eosinophilic tumor cells with high proportion of growth hormone expression, diffusely cytoplasmic keratin staining and low proliferative activity can help differentiate the mature plurihormonal PIT1-lineage tumors from the immature PIT1-lineage tumors. The immature PIT1-lineage tumors have more complicated clinicopathological characteristics.
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Affiliation(s)
- Z J Duan
- Department of Pathology, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - J Feng
- Department of Pathology, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - H Q Zhao
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - H D Wang
- Department of Neurology, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - Q P Gui
- Department of Pathology, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - X F Zhang
- Department of Radiology, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - Z Ma
- Department of Pathology, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - Z J Hu
- Department of Pathology, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - L Xiang
- Department of Pathology, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - X L Qi
- Department of Pathology, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
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Lang Y, Jiang Z, Sun L, Xiang L, Ren L. Hybrid-Supervised Deep Learning for Proton-Acoustic Reconstruction for 3D In Vivo Proton Dose Verification. Int J Radiat Oncol Biol Phys 2023; 117:e682-e683. [PMID: 37786007 DOI: 10.1016/j.ijrobp.2023.06.2145] [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] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Proton-acoustic (PA) image has shown great potential to provide real-time 3D dose verification of proton therapy. However, the PA image quality suffers from severe limited view artifacts, which significantly impairs its accuracy for dose verification. In this study, we developed a hybrid-supervised deep learning method for PA reconstruction to address the limited-view issues. MATERIALS/METHODS Our method consists of two stages. In the first stage, a transformer-based network was proposed to reconstruct initial pressure maps from protoacoustic signals. The network was first trained using supervision by the iteratively reconstructed pressure map and then fine-tuned using transfer learning and self-supervision based on the data fidelity constraint. In the second stage, the PA image was further enhanced by a 3D U-net. The final PA images were converted to dose maps using conversion coefficients derived from CT images. Data from 126 prostate cancer patients treated by proton therapy were collected under an IRB protocol and were split into 86 and 40 patients for model training and testing, respectively. Data of each patient contains the planning CT scan, the corresponding clinical treatment plan, and the dose map calculated by commercial software. The radiofrequency signals were generated by performing proton acoustic simulation based on CT images and the ground truth pressure map derived from the treatment plan. An ultrasound detector matrix with 64 × 64 size and 500kHz central frequency was simulated under the perineum to acquire the signals in the prostate area. In the testing results, the method's accuracy was evaluated using Root-mean-squared-error (RMSE) and structural-similarity-index-measure (SSIM) between the reconstructed and ground truth pressure map and dose distribution. RESULTS Testing results showed that the reconstructed pressure map achieved an average RMSE/SSIM of 0.0292/0.96, demonstrating excellent 3D information with details. Dose maps derived from the pressure map achieved an average RMSE/SSIM of 0.018/0.99 with a gamma index of 94.7% and 95.7% for 1%/3 mm and 1%/5 mm criteria compared to the ground truth dose maps. The reconstruction time was 6s, which can be further reduced using GPU. CONCLUSION Our study achieves start-of-the-art performance in the challenging task of direct reconstruction from limited-view radiofrequency signals, demonstrating the great promise of PA imaging as a highly efficient and accurate tool for in-vivo 3D proton dose verification. Such high-precision 3D online dose verification can substantially reduce the range uncertainties of proton therapy to significantly improve its precision and outcomes.
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Affiliation(s)
- Y Lang
- Department of Radiation Oncology, University of Maryland School of Medicine, Baltimore, MD
| | | | - L Sun
- University of California, Irvine, CA
| | - L Xiang
- University of California, Irvine, CA
| | - L Ren
- Department of Radiation Oncology, University of Maryland School of Medicine, Baltimore, MD
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Jiang NN, Xiang L. [Precise diagnosis and management of anaphylaxis based on phenotypes and endotypes]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:1299-1308. [PMID: 37743288 DOI: 10.3760/cma.j.cn112150-20230215-00110] [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: 09/26/2023]
Abstract
Anaphylaxis is the most severe allergic reaction, demanding immediate management by health care providers, which is currently underdiagnosed and undertreated in China. In addition to the classic IgE-mediated pathway, non-IgE dependent pathway has also been extensively studied in the pathogenesis of anaphylaxis. Recently, the atypical symptoms induced by widespread used monoclonal antibodies and biologics have been reported. The goal of this article is to recognize the phenotypes (triggers and presentation) and understand its characteristics through endotypes (mechanisms) of anaphylaxis. Ultimately, the aim is to help allergists and health care providers guide a precision approach to diagnose and manage of anaphylaxis.
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Affiliation(s)
- N N Jiang
- Key Laboratory of Major Diseases in Children, Ministry of Education, Department of Allergy, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - L Xiang
- Key Laboratory of Major Diseases in Children, Ministry of Education, Department of Allergy, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
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Tian L, Li C, Xiang L, Zeng J, Chen S, Guo W, Chen S, Wang Y, He X, Su P, Xu C. T52 attenuates oncogenic STAT3 signaling and suppresses osteosarcoma. Phytomedicine 2023; 114:154799. [PMID: 37058945 DOI: 10.1016/j.phymed.2023.154799] [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] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 03/12/2023] [Accepted: 04/01/2023] [Indexed: 06/19/2023]
Abstract
BACKGROUND T52 is a steroidal saponin extracted from the traditional Chinese herb Rohdea fargesii (Baill.), and it is reported to possess strong anti-proliferative capabilities in human pharyngeal carcinoma cell lines. However, whether T52 has anti-osteosarcoma properties, and its potential mechanism is remains unknown. PURPOSE To examine the outcome and underlying mechanism of T52 in osteosarcomas (OS). METHODS/STUDY DESIGNS The physiological roles of T52 in OS cells were examined using CCK-8, colony formation (CF), EdU staining, cell cycle/apoptosis and cell migration/invasion assays. The relevant T52 targets against OS were assessed via bioinformatics prediction, and the binding sites were analyzed by molecular docking. Western blot analysis was carried out to examine the levels of factors associated with apoptosis, cell cycle, and STAT3 signaling pathway activation. RESULTS T52 markedly diminished the proliferation, migration, and invasion of OS cells, and promoted G2/M arrest and apoptosis in a dose-dependent fashion (DDF) in vitro. Mechanistically, molecular docking predicted that T52 stably associated with STAT3 Src homology 2 (SH2) domain residues. Western blot revealed that T52 suppressed the STAT3 signaling pathway, as well as the expression of the downstream targets, such as, Bcl-2, Cyclin D1, and c-Myc. In addition, the anti-OS property of T52 were partially reversed by STAT3 reactivation, which confirmed that STAT3 signaling is critical for regulating the anti-OS property of T52. CONCLUSION We firstly demonstrated that T52 possessed strong anti-osteosarcoma property in vitro, which was brought on by the inhibition of the STAT3 signaling pathway. Our findings provided pharmacological support for treating OS with T52.
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Affiliation(s)
- Liru Tian
- Research Center for Translational Medicine, First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510006, China
| | - Chuan Li
- Research Center for Translational Medicine, First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510006, China
| | - Limin Xiang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Engineering Research Center for Lead Compounds & Drug Discovery, Guangzhou 510006, China
| | - Jia Zeng
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Engineering Research Center for Lead Compounds & Drug Discovery, Guangzhou 510006, China
| | - Shuqing Chen
- Department of Traditional Chinese Medicine, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510006, China
| | - Weimin Guo
- Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Department of Spine Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Shulin Chen
- Research Center for Translational Medicine, First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510006, China; State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Yihai Wang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Engineering Research Center for Lead Compounds & Drug Discovery, Guangzhou 510006, China
| | - Xiangjiu He
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Engineering Research Center for Lead Compounds & Drug Discovery, Guangzhou 510006, China.
| | - Peiqiang Su
- Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Department of Spine Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China; The Department of Orthopedics, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan Road 2, Guangzhou, 510080, China.
| | - Caixia Xu
- Research Center for Translational Medicine, First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510006, China.
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Choi AA, Xiang L, Li W, Xu K. Single-Molecule Displacement Mapping Indicates Unhindered Intracellular Diffusion of Small (≲1 kDa) Solutes. J Am Chem Soc 2023:10.1021/jacs.3c00597. [PMID: 37027457 PMCID: PMC10558625 DOI: 10.1021/jacs.3c00597] [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] [Indexed: 04/08/2023]
Abstract
While fundamentally important, the intracellular diffusion of small (≲1 kDa) solutes has been difficult to elucidate due to challenges in both labeling and measurement. Here we quantify and spatially map the translational diffusion patterns of small solutes in mammalian cells by integrating several recent advances. In particular, by executing tandem stroboscopic illumination pulses down to 400 μs separation, we extend single-molecule displacement/diffusivity mapping (SMdM), a super-resolution diffusion quantification tool, to small solutes with high diffusion coefficients D of >300 μm2/s. We thus show that for multiple water-soluble dyes and dye-tagged nucleotides, intracellular diffusion is dominated by vast regions of high diffusivity ∼60-70% of that in vitro, up to ∼250 μm2/s in the fastest cases. Meanwhile, we also visualize sub-micrometer foci of substantial slowdowns in diffusion, thus underscoring the importance of spatially resolving the local diffusion behavior. Together, these results suggest that the intracellular diffusion of small solutes is only modestly scaled down by the slightly higher viscosity of the cytosol over water but otherwise not further hindered by macromolecular crowding. We thus lift a paradoxically low speed limit for intracellular diffusion suggested by previous experiments.
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Affiliation(s)
- Alexander A. Choi
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Limin Xiang
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Wan Li
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Ke Xu
- Department of Chemistry, University of California, Berkeley, California 94720, United States
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10
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Xiang L, Yan R, Chen K, Li W, Xu K. Single-Molecule Displacement Mapping Unveils Sign-Asymmetric Protein Charge Effects on Intraorganellar Diffusion. Nano Lett 2023; 23:1711-1716. [PMID: 36802676 PMCID: PMC10044514 DOI: 10.1021/acs.nanolett.2c04379] [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] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Using single-molecule displacement/diffusivity mapping (SMdM), an emerging super-resolution microscopy method, here we quantify, at nanoscale resolution, the diffusion of a typical fluorescent protein (FP) in the endoplasmic reticulum (ER) and mitochondrion of living mammalian cells. We thus show that the diffusion coefficients D in both organelles are ∼40% of that in the cytoplasm, with the latter exhibiting higher spatial inhomogeneities. Moreover, we unveil that diffusions in the ER lumen and the mitochondrial matrix are markedly impeded when the FP is given positive, but not negative, net charges. Calculation shows most intraorganellar proteins as negatively charged, hence a mechanism to impede the diffusion of positively charged proteins. However, we further identify the ER protein PPIB as an exception with a positive net charge and experimentally show that the removal of this positive charge elevates its intra-ER diffusivity. We thus unveil a sign-asymmetric protein charge effect on the nanoscale intraorganellar diffusion.
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Affiliation(s)
- Limin Xiang
- Department of Chemistry & California Institute for Quantitative Biosciences, University of California, Berkeley, Berkeley, CA, USA, 94720
- College of Chemistry and Molecular Sciences & TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan 430072, China
| | - Rui Yan
- Department of Chemistry & California Institute for Quantitative Biosciences, University of California, Berkeley, Berkeley, CA, USA, 94720
| | - Kun Chen
- Department of Chemistry & California Institute for Quantitative Biosciences, University of California, Berkeley, Berkeley, CA, USA, 94720
| | - Wan Li
- Department of Chemistry & California Institute for Quantitative Biosciences, University of California, Berkeley, Berkeley, CA, USA, 94720
| | - Ke Xu
- Department of Chemistry & California Institute for Quantitative Biosciences, University of California, Berkeley, Berkeley, CA, USA, 94720
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11
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Wang Y, Wang S, Xu J, Wang Y, Xiang L, He X. Total steroidal saponins from black nightshade (Solanum nigrum L.) overcome tumor multidrug resistance by inducing autophagy-mediated cell death in vivo and in vitro. Phytother Res 2023. [PMID: 36877123 DOI: 10.1002/ptr.7796] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 07/25/2022] [Revised: 01/18/2023] [Accepted: 02/11/2023] [Indexed: 03/07/2023]
Abstract
Multiple drug resistance (MDR) often occurs after prolonged chemotherapy, leading to refractory tumors and cancer recurrence. In this study, we demonstrated that the total steroidal saponins from Solanum nigrum L. (SN) had broad-spectrum cytotoxic activity against various human leukemia cancer cell lines, especially in adriamycin (ADR)-sensitive and resistant K562 cell lines. Moreover, SN could effectively inhibit the expression of ABC transporter in K562/ADR cells in vivo and in vitro. In vivo, by establishing K562/ADR xenograft tumor model, we demonstrated that SN might overcome drug resistance and inhibit the proliferation of tumors by regulating autophagy. In vitro, the increased LC3 puncta, the expression of LC3-II and Beclin-1, and the decreased expression of p62/SQSTM1 in SN-treated K562/ADR and K562 cells demonstrated autophagy induced by SN. Moreover, using the autophagy inhibitors or transfecting the ATG5 shRNA, we confirmed that autophagy induced by SN was a key factor in overcoming MDR thereby promoting cell death in K562/ADR cells. More importantly, SN-induced autophagy through the mTOR signaling pathway to overcome drug resistance and ultimately induced autophagy-mediated cell death in K562/ADR cells. Taken together, our findings suggest that SN has the potential to treat multidrug-resistant leukemia.
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Affiliation(s)
- Yi Wang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, China.,Guangdong Engineering Research Center for Lead Compounds & Drug Discovery, Guangzhou, China
| | - Siyu Wang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, China.,Guangdong Engineering Research Center for Lead Compounds & Drug Discovery, Guangzhou, China
| | - Jingwen Xu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, China.,Guangdong Engineering Research Center for Lead Compounds & Drug Discovery, Guangzhou, China
| | - Yihai Wang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, China.,Guangdong Engineering Research Center for Lead Compounds & Drug Discovery, Guangzhou, China
| | - Limin Xiang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, China.,Guangdong Engineering Research Center for Lead Compounds & Drug Discovery, Guangzhou, China
| | - Xiangjiu He
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, China.,Guangdong Engineering Research Center for Lead Compounds & Drug Discovery, Guangzhou, China
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12
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Zhou B, Liang S, Shang S, Xiang L, Li L. Changes in Thymus and Activation-Regulated Chemokine in Patients With Type 2 Inflammatory Disease Receiving Dupilumab. J Investig Allergol Clin Immunol 2023; 33:74-75. [PMID: 36546446 DOI: 10.18176/jiaci.0874] [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] [Indexed: 12/24/2022] Open
Affiliation(s)
- B Zhou
- Department of Dermatology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - S Liang
- Department of Dermatology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - S Shang
- Department of Dermatology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - L Xiang
- Department of Dermatology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - L Li
- Department of Dermatology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
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13
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Wang S, Wang L, Xu J, Wang Y, Xiang L, He X. Synergistic Combination of the Total Steroidal Saponins from the Berries of Black Nightshade and Adriamycin to Overcome Leukemia Multidrug Resistance. J Agric Food Chem 2023; 71:3315-3324. [PMID: 36752041 DOI: 10.1021/acs.jafc.2c07740] [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: 06/18/2023]
Abstract
The berries of black nightshade (Solanum nigrum L.) are consumed as a favorite fruit in some regions and have been reported to possess a range of biological activities. Previous studies have found that the steroidal saponins from the berries of S. nigrum (SN) showed potential antileukemic activity, although the underlying mechanism remains to be revealed. This study investigated the effects and mechanisms of SN in combination with adriamycin to reverse leukemia multidrug resistance in vivo and in vitro. The results indicated that the combination of SN and adriamycin displayed enhanced suppression ability both in vitro and in vivo by the modulation of drug efflux proteins. Further study revealed that SN and adriamycin co-treatment induced cell apoptosis in K562/ADR cells through caspase pathways and autophagy through the PI3K/Akt/mTOR and MAPK signaling pathway. This study provides a new prospect of the berries of black nightshade in multidrug resistance therapy of cancer.
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Affiliation(s)
- Siyu Wang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
- Guangdong Engineering Research Center for Lead Compounds & Drug Discovery, Guangzhou 510006, China
| | - Lutong Wang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
- Guangdong Engineering Research Center for Lead Compounds & Drug Discovery, Guangzhou 510006, China
| | - Jingwen Xu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
- Guangdong Engineering Research Center for Lead Compounds & Drug Discovery, Guangzhou 510006, China
| | - Yihai Wang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
- Guangdong Engineering Research Center for Lead Compounds & Drug Discovery, Guangzhou 510006, China
| | - Limin Xiang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
- Guangdong Engineering Research Center for Lead Compounds & Drug Discovery, Guangzhou 510006, China
| | - Xiangjiu He
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
- Guangdong Engineering Research Center for Lead Compounds & Drug Discovery, Guangzhou 510006, China
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Xiang L, Yan R, Chen K, Li W, Xu K. Single-molecule displacement mapping unveils sign-asymmetric protein charge effects on intraorganellar diffusion. bioRxiv 2023:2023.01.26.525611. [PMID: 36747807 PMCID: PMC9900983 DOI: 10.1101/2023.01.26.525611] [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] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Using single-molecule displacement/diffusivity mapping (SM d M), an emerging super-resolution microscopy method, here we quantify, at nanoscale resolution, the diffusion of a typical fluorescent protein (FP) in the endoplasmic reticulum (ER) and mitochondrion of living mammalian cells. We thus show that the diffusion coefficients D in both organelles are ~40% of that in the cytoplasm, with the latter exhibiting higher spatial inhomogeneities. Moreover, we unveil that diffusions in the ER lumen and the mitochondrial matrix are markedly impeded when the FP is given positive, but not negative, net charges. Calculation shows most intraorganellar proteins as negatively charged, thus a mechanism to impede the diffusion of positively charged proteins. However, we further identify the ER protein PPIB as an exception with a positive net charge, and experimentally show that the removal of this positive charge elevates its intra-ER diffusivity. We thus unveil a sign-asymmetric protein charge effect on the nanoscale intraorganellar diffusion.
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15
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Choi AA, Xiang L, Li W, Xu K. Single-molecule displacement mapping indicates unhindered intracellular diffusion of small (<~1 kDa) solutes. bioRxiv 2023:2023.01.26.525579. [PMID: 36747694 PMCID: PMC9900885 DOI: 10.1101/2023.01.26.525579] [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] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
While fundamentally important, the intracellular diffusion of small (<~1 kDa) solutes has been difficult to elucidate due to challenges in both labeling and measurement. Here we quantify and spatially map the translational diffusion patterns of small solutes in mammalian cells by integrating several recent advances. In particular, by executing tandem stroboscopic illumination pulses down to 400-μs separation, we extend single-molecule displacement/diffusivity mapping (SM d M), a super-resolution diffusion quantification tool, to small solutes with high diffusion coefficients D of >300 μm 2 /s. We thus show that for multiple water-soluble dyes and dye-tagged nucleotides, intracellular diffusion is dominated by vast regions of high diffusivity ~60-70% of that in vitro , up to ~250 μm 2 /s in the fastest cases. Meanwhile, we also visualize sub-micrometer foci of substantial slowdowns in diffusion, thus underscoring the importance of spatially resolving the local diffusion behavior. Together, these results suggest that the intracellular diffusion of small solutes is only modestly scaled down by the slightly higher viscosity of the cytosol over water, but otherwise not further hindered by macromolecular crowding. We thus lift a paradoxically low speed limit for intracellular diffusion suggested by previous experiments. Abstract Graphic
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16
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Zhu Z, Yang M, Gu H, Wang Y, Xiang L, Peng L. Adherence to the Dietary Approaches to Stop Hypertension (DASH) Eating Pattern Reduces the Risk of Head and Neck Cancer in American Adults Aged 55 Years and Above: A Prospective Cohort Study. J Nutr Health Aging 2023; 27:1100-1108. [PMID: 37997732 DOI: 10.1007/s12603-023-2009-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Accepted: 09/15/2023] [Indexed: 11/25/2023]
Abstract
OBJECTIVES Dietary Approaches to Stop Hypertension (DASH) pattern has been found to aid in the reduction of obesity, oxidative stress, and chronic inflammation, which are all strongly linked to the development of head and neck cancer (HNC). Nevertheless, no epidemiological studies have investigated the association between this dietary pattern and HNC risk. This study was conducted with the purpose of bridging this gap in knowledge. DESIGN A prospective cohort study involving 98,459 American adults aged 55 years and older. SETTING AND PARTICIPANTS Data were drawn from the Prostate, Lung, Colorectal, and Ovarian (PLCO) Trial. In the present study, participants with dependable energy intake data who furnished baseline and dietary history information were identified as the study population. METHODS Diet was assessed by food frequency questionnaires and the DASH score was calculated to assess each participant's adherence to DASH eating pattern. Cox proportional hazards models were used to calculate multivariable adjusted hazard ratios (HRs) and 95% confidence intervals (CIs) for the occurrence of HNC. To visualize the variation in cancer risk for HNC and its subtypes across the entire spectrum of DASH scores, restricted cubic spline plots were utilized. Additionally, a series of predefined subgroup analyses were performed to identify potential effect modifiers, and several sensitivity analyses were conducted to assess the stability of the findings. RESULTS During a follow-up period of 871,879.6 person-years, 268 cases of HNC were identified, comprising 161 cases pertaining to oral cavity and pharynx cancers, as well as 96 cases of larynx cancer. In the fully adjusted model, adherence to the DASH diet was associated with a remarkable 57% reduction in the risk of HNC when comparing extreme quartiles (HR quartile 4 vs 1: 0.43; 95% CI: 0.28, 0.66; P for trend < 0.001). The restricted cubic spline plots demonstrated a linear dose-response relationship between the DASH score and the risk of HNC as well as its subtypes. Subgroup analysis revealed that the protective effect of the DASH diet against HNC was particularly pronounced in individuals with lower daily energy intake. The primary association remained robust in the sensitivity analysis. CONCLUSIONS In American middle-aged and older population, adherence to the DASH diet may help prevent HNC, particularly for individuals with lower daily energy intake.
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Affiliation(s)
- Z Zhu
- Ling Xiang and Linglong Peng, The Second Affiliated Hospital of Chongqing Medical University, No.288 Tianwen Avenue, Nan'an District, Chongqing, 400010, China. fax: +86 (023) 62887512. E-mail: (Ling Xiang), (Linglong Peng)
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Järvinen A, Aho-Mantila L, Lunt T, Subba F, Rubino G, Xiang L. Parametric scaling of power exhaust in EU-DEMO alternative divertor simulations. Nuclear Materials and Energy 2023. [DOI: 10.1016/j.nme.2023.101378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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18
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Tang H, Peng J, Peng S, Wang Q, Jiang X, Xue X, Tao Y, Xiang L, Ji Q, Liu SM, Weng X, Zhou X. Live-cell RNA imaging using the CRISPR-dCas13 system with modified sgRNAs appended with fluorescent RNA aptamers. Chem Sci 2022; 13:14032-14040. [PMID: 36540819 PMCID: PMC9728512 DOI: 10.1039/d2sc04656c] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Accepted: 11/06/2022] [Indexed: 09/10/2023] Open
Abstract
The development of RNA imaging strategies in live cells is essential to improve our understanding of their role in various cellular functions. We report an efficient RNA imaging method based on the CRISPR-dPspCas13b system with fluorescent RNA aptamers in sgRNA (CasFAS) in live cells. Using modified sgRNA attached to fluorescent RNA aptamers that showed reduced background fluorescence, this approach provides a simple, sensitive way to image and track endogenous RNA with high accuracy and efficiency. In addition, color switching can be easily achieved by changing the fluorogenic dye analogues in living cells through user-friendly washing and restaining operations. CasFAS is compatible with orthogonal fluorescent aptamers, such as Broccoli and Pepper, enabling multiple colors RNA labeling or intracellular RNA-RNA interaction imaging. Finally, the visualization of severe fever with thrombocytopenia syndrome virus (SFTSV) was achieved by CasFAS, which may facilitate further studies on this virus.
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Affiliation(s)
- Heng Tang
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of Ministry of Education, The Institute for Advanced Studies, Hubei Province Key Laboratory of Allergy and Immunology, Wuhan University Wuhan 430072 Hubei P. R. China
| | - Junran Peng
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of Ministry of Education, The Institute for Advanced Studies, Hubei Province Key Laboratory of Allergy and Immunology, Wuhan University Wuhan 430072 Hubei P. R. China
| | - Shuang Peng
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of Ministry of Education, The Institute for Advanced Studies, Hubei Province Key Laboratory of Allergy and Immunology, Wuhan University Wuhan 430072 Hubei P. R. China
| | - Qi Wang
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of Ministry of Education, The Institute for Advanced Studies, Hubei Province Key Laboratory of Allergy and Immunology, Wuhan University Wuhan 430072 Hubei P. R. China
| | - Xin Jiang
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of Ministry of Education, The Institute for Advanced Studies, Hubei Province Key Laboratory of Allergy and Immunology, Wuhan University Wuhan 430072 Hubei P. R. China
| | - Xiaocheng Xue
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of Ministry of Education, The Institute for Advanced Studies, Hubei Province Key Laboratory of Allergy and Immunology, Wuhan University Wuhan 430072 Hubei P. R. China
| | - Yanxin Tao
- Department of Clinical Laboratory, Center for Gene Diagnosis, and Program of Clinical Laboratory Medicine, Zhongnan Hospital of Wuhan University Wuhan 430072 Hubei P. R. China
| | - Limin Xiang
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of Ministry of Education, The Institute for Advanced Studies, Hubei Province Key Laboratory of Allergy and Immunology, Wuhan University Wuhan 430072 Hubei P. R. China
| | - Quanjiang Ji
- School of Physical Science and Technology, ShanghaiTech University Shanghai 201210 P. R. China
| | - Song-Mei Liu
- Department of Clinical Laboratory, Center for Gene Diagnosis, and Program of Clinical Laboratory Medicine, Zhongnan Hospital of Wuhan University Wuhan 430072 Hubei P. R. China
| | - Xiaocheng Weng
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of Ministry of Education, The Institute for Advanced Studies, Hubei Province Key Laboratory of Allergy and Immunology, Wuhan University Wuhan 430072 Hubei P. R. China
| | - Xiang Zhou
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of Ministry of Education, The Institute for Advanced Studies, Hubei Province Key Laboratory of Allergy and Immunology, Wuhan University Wuhan 430072 Hubei P. R. China
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Duan ZJ, Feng J, Yao K, Hu ZJ, Ma Z, Xiang L, Zhang XF, Qi XL. [Clinicopathological characteristics of H3K27-altered diffuse midline glioma and evaluation of NTRK as its therapeutic target]. Zhonghua Bing Li Xue Za Zhi 2022; 51:1115-1122. [PMID: 36323540 DOI: 10.3760/cma.j.cn112151-20220507-00378] [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: 06/16/2023]
Abstract
Objective: To investigate the clinicopathological characteristics of H3K27-altered diffuse midline glioma (DMG), and to analyze DMG's prognostic factors, and subsequently, to study the possibility of using NTRK as a therapeutic target for DMG. Methods: A total of 232 DMG diagnosed at the Sanbo Brain Hospital, Capital Medical University, Beijing, China from July 2016 to March 2021 were collected. Their clinical, radiological and pathological features, the ratio of MGMT promoter methylation, expression of NTRK, and characteristics of NTRK gene fusion were analyzed. The prognostic values of different factors were also studied, including age, tumor location, histological grade, gene and protein expression of NTRK, and postoperative adjuvant therapy. Results: Among the 232 DMG cases, there were 8 patients with both primary and relapse tumors on the record. Thus, a total of 224 patients were analyzed, including 118 males and 106 females. There were 126 adults (>18 years of age) and 98 children (≤18 years of age). Notably, the most frequent location was thalamus (41/126, 32.5%) in adults, but brainstem (59/96, 60.2%) in children. The lesions showed T1 hypointensity or isointensity, and T2 hyperintensity. However, contrast enhancement patterns of the tumors varied, with many tumors lacking contrast-enhancing. The histological grades included grade 2 (9/224, 4.0%), grade 3 (41/224, 18.3%) and grade 4 (174/224, 77.7%). Two hundred and twenty-four DMGs were diffusely positive for H3K27M and negative for H3K27me3. The ratio of MGMT promoter methylation was low (1/45, 2.2%). One hundred and seventy-seven of the 224 cases (177/224, 79.0%) were positive for NTRK. Fifty cases were analyzed using fluorescence in situ hybridization. Among them, five DMGs (positive rate, 10.0%) were NTRK fusion positive. This study showed that there were no differences between adult and pediatric DMGs in histological grading, expression of NTRK, and NTRK gene fusion. One hundred and fifty-nine patients were included in the follow-up analysis (P>0.05). During the follow-up period, 109/159 patients (69.6%) died of the disease, with a median survival time of 12 months (range 1 to 55 months). Univariate log-rank analysis showed that age, location, surgical procedure and postoperative adjuvant therapy were associated with overall survivals of the DMG patients (P<0.05). Conclusions: The prognosis of DMG is poor overall. There are differences between adult and pediatric DMGs in anatomic location and prognosis, but not in other features. NTRK1 gene fusion is detected in 10.0% of the tumors. It suggests that TRK inhibitor might be a choice for treating DMG.
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Affiliation(s)
- Z J Duan
- Department of Pathology, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - J Feng
- Department of Pathology, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - K Yao
- Department of Pathology, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - Z J Hu
- Department of Pathology, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - Z Ma
- Department of Pathology, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - L Xiang
- Department of Pathology, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - X F Zhang
- Department of Imaging, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - X L Qi
- Department of Pathology, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
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Xiang L, Ye LL, Zhang JW, Yan RJ, Liao W, Tang YX, Cui J, Hu YL, Yang YX, Jiang Y, Zhang J. [The purchase behavior of prepackaged food and its determinants among primary and middle school students in 6 provinces of China]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:1604-1611. [PMID: 36372751 DOI: 10.3760/cma.j.cn112150-20211126-01090] [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: 06/16/2023]
Abstract
Objective: To examine the purchase behaviors of prepackaged food and its determinants among primary and middle school students in 6 provinces of China. Methods: A multi-stage sampling strategy was adopted to select 2 499 primary and middle school students and their parents from the eastern region of China(Beijing, Jiangsu Province, Guangdong Province), the northeast region(Heilongjiang Province), the central region(Henan Province) and the western region(Sichuan Province) from July 2020 to March 2021. Socio-demographic characteristics of students and their parents, eating-related behaviors and the purchase behaviors of prepackaged food of students, and parents' attitudes towards students' eating behavior were collected through questionnaire towards students and their parents. The χ² test was conducted to compare the purchase behaviors in different groups of students, and multivariate logistic stepwise regression analysis was used to analyze the determinants among primary and middle school students. Results: The age of 2 499 participants was(12.7±2.5) years. There were 1 272(50.9%) females and 1 279(51.2%) middle school students. About 1 404(56.2%) students bought prepackaged food. The top 6 prepackaged foods bought at least once a week were milk and dairy products(74.6%), baked food(58.7%), beverages(42.8%), puffed food(40.8%), chocolate and candy(39.8%), and nuts and dried fruits(37.5%). The multivariate logistic regression model analysis results showed that compared with primary school students, rural students, non-boarding students, students who did not like snacks and students whose parents paid attention to their children eating snacks, middle school students(OR=3.36, 95%CI:2.73-4.12), urban students(OR=1.33, 95%CI:1.11-1.61), boarding students(OR=2.15, 95%CI:1.66-2.79), students who liked snacks(OR=2.01, 95%CI:1.66-2.43), students whose parents did not pay attention to their children eating snacks(OR=1.27, 95%CI:1.05-1.54) were more likely to buy prepackaged food by themselves. Compared with students whose parents had education level of junior high school and below, students whose parents had education level of undergraduate and above(OR=0.70, 95%CI:0.53-0.92) were less likely to buy prepackaged food by themselves. Compared with students whose family monthly income was less than 5 000 yuan, students whose family monthly income was over 10 000 yuan(OR=0.67, 95%CI:0.52-0.87) were less likely to buy prepackaged food by themselves. Conclusion: Many primary and middle school students buy prepackaged food by themselves in 6 provinces of China. Individual characteristics such as grade, place of residence, boarding status, as well as family environment such as parents' education level, monthly income and concern about children eating snacks are the influencing factors of purchasing prepackaged food.
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Affiliation(s)
- L Xiang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - L L Ye
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - J W Zhang
- Shijiazhuang Municipal Bureau of Statistics, Shijiazhuang 050011, China
| | - R J Yan
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - W Liao
- Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Y X Tang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - J Cui
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Y L Hu
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Y X Yang
- Chinese Nutrition Society, Beijing 100022, China
| | - Y Jiang
- Chinese Nutrition Society, Beijing 100022, China
| | - Juan Zhang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
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Xiang L, Wu J, Zheng Y, Wen E, He W. Interim Results of a Prospective, Randomized, Multicenter, Phase 3 Study of the Efficacy of Increasing the Cycles of Induction Chemotherapy in Locally Advanced Nasopharyngeal Carcinoma. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1355] [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: 11/27/2022]
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22
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Ye LL, Zhang JW, Yan RJ, Xiang L, Hu YL, Cui J, Tang YX, Chai X, Gao C, Xiao L, Jiang Y, Zhang J, Yang Y. [Association between the awareness of Nutrition Facts Panel and prepackaged food purchase behavior among residents]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:1478-1483. [PMID: 36274617 DOI: 10.3760/cma.j.cn112150-20211101-01006] [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: 06/16/2023]
Abstract
Objective: To explore the association between the cognition of Nutrition Facts Panel and prepackaged food purchase behavior among residents in six provinces in China. Methods: Using a multi-stage sampling method, 3 002 adults aged 18-70 were selected from the western region (Sichuan), eastern region (Guangdong, Jiangsu, Beijing), central region (Henan), and northeastern region (Heilongjiang) of China from July 2020 to March 2021. Socio-demographic characteristics of participants and their cognition of Nutrition Facts Panel and prepackaged food purchase behavior were collected through questionnaire. A multivariate binary logistic regression model was used to analyze the association between cognition of Nutrition Facts Panel and prepackaged food purchase behavior. Results: The age of 3 002 subjects was (42.3±13.4) years, among which 63.8% (1 914) were female, 66.7% knew the Nutrition Facts Panel, 49.8% would read it when purchasing, 30.7% could understand it, and 56.6% (1 699) bought prepackaged food more than once a week. The results of multivariate analysis showed that after adjusting for relevant confounding factors, compared with the participants knowing but not reading the Nutrition Facts Panel, the group knowing and reading was more likely to buy 11 types of prepackaged food at least once a week (all P<0.05). Compared with the participants reading but not understanding the Nutrition Facts Panel, the group reading and understanding was less likely to buy 11 types of prepackaged food at least once a week (all P<0.05). Conclusion: There was a correlation between cognition of Nutrition Facts Panel and prepackaged food purchase behavior among residents.
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Affiliation(s)
- L L Ye
- School of Population Medicine and Public Health, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 10005, China
| | - J W Zhang
- Shijiazhuang Municipal Bureau of Statistics, Shijiazhuang 050011, China
| | - R J Yan
- School of Population Medicine and Public Health, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 10005, China
| | - L Xiang
- School of Population Medicine and Public Health, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 10005, China
| | - Y L Hu
- School of Population Medicine and Public Health, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 10005, China
| | - J Cui
- School of Population Medicine and Public Health, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 10005, China
| | - Y X Tang
- School of Population Medicine and Public Health, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 10005, China
| | - X Chai
- School of Population Medicine and Public Health, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 10005, China
| | - C Gao
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - L Xiao
- Chinese Health Education Network, Beijing 100020, China
| | - Y Jiang
- Chinese Nutrition Society, Beijing 100022, China
| | - Juan Zhang
- School of Population Medicine and Public Health, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 10005, China
| | - Yuexin Yang
- Chinese Nutrition Society, Beijing 100022, China
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23
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Xiang L, Yang YY, Qin X, Wang Y, Wang W. [Interpretation of extracorporeal membrane oxygenation in children receiving hematopoietic cell transplantation and immune effector cell therapy: an international and multidisciplinary consensus statement]. Zhonghua Er Ke Za Zhi 2022; 60:998-1001. [PMID: 36207845 DOI: 10.3760/cma.j.cn112140-20220325-00244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Affiliation(s)
- L Xiang
- Department of Critical Care Medicine, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Y Y Yang
- Department of Cardiothoracic Surgery, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - X Qin
- Department of Hematology/Oncology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Y Wang
- Department of Critical Care Medicine, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - W Wang
- Department of Cardiothoracic Surgery, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
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24
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Śmigiel WM, Mantovanelli L, Linnik DS, Punter M, Silberberg J, Xiang L, Xu K, Poolman B. Protein diffusion in Escherichia coli cytoplasm scales with the mass of the complexes and is location dependent. Sci Adv 2022; 8:eabo5387. [PMID: 35960807 PMCID: PMC9374337 DOI: 10.1126/sciadv.abo5387] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 06/28/2022] [Indexed: 05/30/2023]
Abstract
We analyze the structure of the cytoplasm by performing single-molecule displacement mapping on a diverse set of native cytoplasmic proteins in exponentially growing Escherichia coli. We evaluate the method for application in small compartments and find that confining effects of the cell membrane affect the diffusion maps. Our analysis reveals that protein diffusion at the poles is consistently slower than in the center of the cell, i.e., to an extent greater than the confining effect of the cell membrane. We also show that the diffusion coefficient scales with the mass of the used probes, taking into account the oligomeric state of the proteins, while parameters such as native protein abundance or the number of protein-protein interactions do not correlate with the mobility of the proteins. We argue that our data paint the prokaryotic cytoplasm as a compartment with subdomains in which the diffusion of macromolecules changes with the perceived viscosity.
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Affiliation(s)
- Wojciech M. Śmigiel
- Department of Biochemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, Netherlands
| | - Luca Mantovanelli
- Department of Biochemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, Netherlands
| | - Dmitrii S. Linnik
- Department of Biochemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, Netherlands
| | - Michiel Punter
- Department of Biochemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, Netherlands
| | - Jakob Silberberg
- Department of Biochemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, Netherlands
| | - Limin Xiang
- Department of Chemistry, UC Berkeley, Stanley Hall, Berkeley, CA 94720, USA
| | - Ke Xu
- Department of Chemistry, UC Berkeley, Stanley Hall, Berkeley, CA 94720, USA
| | - Bert Poolman
- Department of Biochemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, Netherlands
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Hu YL, Yan RJ, Jiang Y, Zhang JW, Ye LL, Xiang L, Cui J, Tang YX, Gao C, Xiao L, Yang YX, Zhang J. [The preference for Front-of-Pack Labeling and its association with the understanding of Nutrition Facts Panel among residents aged 18 to 70: results of a survey in 6 provinces of China]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:952-959. [PMID: 35899348 DOI: 10.3760/cma.j.cn112150-20211102-01013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To investigate the preference for Front-of-Pack Labeling (FOP) and its association with the understanding of the Nutrition Facts Panel among Chinese residents. Methods: A multi-stage sampling strategy was adopted to select 3 002 people aged between 18 and 70 years old from the eastern region of China (Beijing, Jiangsu Province, Guangdong Province), the northeast region (Heilongjiang Province), the central region (Henan Province) and the western region (Sichuan Province) from July 2020 to March 2021. Socio-demographic characteristics of participants and their understanding of the Nutrition Facts Panel and preference for FOP were collected. The χ² test was conducted to compare the preference for FOP in different groups of population, and multivariate logistic regression was used to analyze the association between the preference for FOP and the understanding of the Nutrition Facts Panel. Results: The mean age of 3 002 participants was (42.3±13.4) years, of which 1 914 (63.8%) were females and 69.3% could not understand the Nutrition Facts Panel. About 2 458 respondents (81.9%) suggested that FOP could be promoted. The top three nutrients that should be labeled were sugar (68.4%), salt (68.2%) and total fat (62.4%). The number of participants who believed that the Multiple Traffic Lights (MTL) could be easier to help consumers to quickly choose healthy food, attract attention and provide the most needed information was 1 064 (35.4%), 1 026 (34.2%) and 1 140 (38.0%), respectively. The multivariate logistic regression analysis showed that, compared with the Guideline Daily Amount (GDA) system, participants who could not understand the Nutrition Facts Panel preferred (1) Nutri-Score, Warning labels, and Health logos: Smart Choice in terms of"Which format of FOP could quickly help you choose food more easily?"[OR (95%CI): 2.21 (1.62-3.02), 1.64 (1.22-2.22), 1.79 (1.31-2.45), respectively]; (2) Nutri-Score, Warning labels, and Health logos: Smart Choice in terms of"Which format of FOP could attract your attention the most?"[OR (95%CI): 2.62 (1.92-3.59), 1.96 (1.45-2.66), 2.25 (1.66-3.04), respectively]; and (3) Nutri-Score, Warning labels, and Health logos: Smart Choice in terms of"Which format of FOP could provide you with the most needed information?"[OR (95%CI): 2.33 (1.70-3.21), 2.21 (1.66-2.95), 2.01 (1.50-2.71), respectively]. Conclusion: The residents from six provinces in China have a supportive attitude towards FOP. The interpretive FOP with color information, specific nutrient information and summary indicator can be launched. The nutrition information of sugar, salt and total fat could be prioritized to be labeled on the FOP.
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Affiliation(s)
- Y L Hu
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - R J Yan
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Y Jiang
- Chinese Nutrition Society, Beijing 100022, China
| | - J W Zhang
- Shijiazhuang Municipal Bureau of Statistics, Shijiazhuang 050011, China
| | - L L Ye
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - L Xiang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - J Cui
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Y X Tang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - C Gao
- National Institute for Nutrition and Health Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - L Xiao
- Chinese Center for Health Education, Beijing 100020, China
| | - Y X Yang
- National Institute for Nutrition and Health Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Juan Zhang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
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Wang K, Chen K, Xiang L, Zeng M, Liu Y, Liu Y. Relationship between Hg(II) adsorption property and functional group of different thioamide chelating resins. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121044] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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27
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Zheng ZL, Cao J, Li YY, Luo TT, Zhu TH, Li SJ, Liu YG, Qiao TM, Yang CL, Qin GY, Jiang YR, Yi JM, Xiang L, Chen XY, Han S. Root Rot of Codonopsis tangshen Caused by Ilyonectria robusta in Chongqing, China. Plant Dis 2022; 106:PDIS09212080PDN. [PMID: 34894751 DOI: 10.1094/pdis-09-21-2080-pdn] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- Z L Zheng
- College of Forestry, Sichuan Agricultural University, Chengdu, Sichuan Province, 611130, Sichuan, P.R. China
| | - J Cao
- Chongqing Three Gorges Vocational College, Wanzhou, Chongqing, 404155, Chongqing, P.R. China
| | - Y Y Li
- College of Forestry, Sichuan Agricultural University, Chengdu, Sichuan Province, 611130, Sichuan, P.R. China
| | - T T Luo
- College of Forestry, Sichuan Agricultural University, Chengdu, Sichuan Province, 611130, Sichuan, P.R. China
| | - T H Zhu
- College of Forestry, Sichuan Agricultural University, Chengdu, Sichuan Province, 611130, Sichuan, P.R. China
| | - S J Li
- College of Forestry, Sichuan Agricultural University, Chengdu, Sichuan Province, 611130, Sichuan, P.R. China
| | - Y G Liu
- College of Forestry, Sichuan Agricultural University, Chengdu, Sichuan Province, 611130, Sichuan, P.R. China
| | - T M Qiao
- College of Forestry, Sichuan Agricultural University, Chengdu, Sichuan Province, 611130, Sichuan, P.R. China
| | - C L Yang
- College of Forestry, Sichuan Agricultural University, Chengdu, Sichuan Province, 611130, Sichuan, P.R. China
| | - G Y Qin
- Chongqing Three Gorges Vocational College, Wanzhou, Chongqing, 404155, Chongqing, P.R. China
| | - Y R Jiang
- College of Forestry, Sichuan Agricultural University, Chengdu, Sichuan Province, 611130, Sichuan, P.R. China
| | - J M Yi
- College of Forestry, Sichuan Agricultural University, Chengdu, Sichuan Province, 611130, Sichuan, P.R. China
| | - L Xiang
- College of Forestry, Sichuan Agricultural University, Chengdu, Sichuan Province, 611130, Sichuan, P.R. China
| | - X Y Chen
- College of Forestry, Sichuan Agricultural University, Chengdu, Sichuan Province, 611130, Sichuan, P.R. China
| | - S Han
- College of Forestry, Sichuan Agricultural University, Chengdu, Sichuan Province, 611130, Sichuan, P.R. China
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28
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Chen R, Lai X, Xiang L, Li Q, Sun L, Lai Z, Li Z, Zhang W, Wen S, Cao J, Sun S. Aged green tea reduces high-fat diet-induced fat accumulation and inflammation via activating the AMP-activated protein kinase signaling pathway. Food Nutr Res 2022; 66:7923. [PMID: 35382381 PMCID: PMC8941417 DOI: 10.29219/fnr.v66.7923] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 11/30/2021] [Accepted: 01/04/2022] [Indexed: 02/06/2023] Open
Abstract
Background Obesity is a global public health concern and increases the risk of metabolic syndrome and other diseases. The anti-obesity effects of various plant-derived bioactive compounds, such as tea extracts, are well-established. The mechanisms underlying the anti-obesity activity of Jinxuan green tea (JXGT) from different storage years are still unclear. Objective The aim of this study was to evaluate the effects of JXGTs from three different years on the high fat diet (HFD)-fed mouse model. Design The mice were divided into six groups, the control group received normal diet and the obese model group received HFD. We analyzed the effects of JXGTs from 2005, 2008, and 2016 on HFD-fed obese mice over a period of 7 weeks. Results The JXGTs reduced the body weight of the obese mice, and also alleviated fat accumulation and hepatic steatosis. Mechanistically, JXGTs increased the phosphorylation of AMP-activated protein kinase (p-AMPK)/AMP-activated protein kinase (AMPK) ratio, up-regulated carnitine acyl transferase 1A (CPT-1A), and down-regulated fatty acid synthase (FAS), Glycogen synthase kinase-3beta (GSK-3β), Peroxisome proliferator-activated receptor-gamma co-activator-1alpha (PGC-1α), Interleukin 6 (IL-6), and Tumour necrosis factor alpha (TNFα). Thus, JXGTs can alleviate HFD-induced obesity by inhibiting lipid biosynthesis and inflammation, thereby promoting fatty acid oxidation via the AMPK pathway. Discussion The anti-obesity effect of three aged JXGTs were similar. However, JXGT2016 exhibited a more potent activation of AMPK, and JXGT2005 and JXGT2008 exhibited a more potent inhibiting glycogen synthase and inflammation effect. Furthermore, the polyphenol (–)-epicatechin (EC) showed the strongest positive correlation with the anti-obesity effect of JXGT. Conclusions These findings demonstrate that JXGT treatment has a potential protection on HFD-induced obesity mice via activating the AMPK/CPT-1A and down-regulating FAS/GSK-3β/PGC-1α and IL-6/TNFα. Our study results also revealed that different storage time would not affect the anti-obesity and anti-inflammation effect of JXGT. Graphical abstract
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Affiliation(s)
- Ruohong Chen
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, Guangzhou, China
| | - Xingfei Lai
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, Guangzhou, China
| | - Limin Xiang
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, Guangzhou, China
| | - Qiuhua Li
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, Guangzhou, China
| | - Lingli Sun
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, Guangzhou, China
| | - Zhaoxiang Lai
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, Guangzhou, China
| | - Zhigang Li
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, Guangzhou, China
| | - Wenji Zhang
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, Guangzhou, China
| | - Shuai Wen
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, Guangzhou, China
| | - Junxi Cao
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, Guangzhou, China
| | - Shili Sun
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, Guangzhou, China
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29
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Liu HM, Fu Z, Zhang XB, Zhang HL, Bao YX, Wu XD, Shang YX, Zhao DY, Zhao SY, Zhang JH, Chen ZM, Liu EM, Deng L, Liu CH, Xiang L, Cao L, Zou YX, Xu BP, Dong XY, Yin Y, Hao CL, Hong JG. [Expert consensus on rational usage of nebulization treatment on childhood respiratory system diseases]. Zhonghua Er Ke Za Zhi 2022; 60:283-290. [PMID: 35385931 DOI: 10.3760/cma.j.cn112140-20220118-00059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- H M Liu
- Department of Pediatric Pulmonology and Immunology, West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | - Z Fu
- Department of Respiratory, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - X B Zhang
- Department of Respiratory Disease, Children's Hospital of Fudan University, Shanghai 201102, China
| | - H L Zhang
- Department of Pediatric Respiratory Medicine, the Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - Y X Bao
- Tongxing Children's Clinic, Shanghai 200433, China
| | - X D Wu
- Department of Respiratory,Xiamen Children's Hospital (Children's Hospital of Fudan University at Xiamen), Xiamen 361006, China
| | - Y X Shang
- Department of Pediatric Pulmonology, Shengjing Hospital of China Medical University, Shenyang 110136, China
| | - D Y Zhao
- Department of Respiratory Medicine, Children's Hospital of Nanjing Medical University, Nanjing 210008, China
| | - S Y Zhao
- Department No.2 of Respiratory Medicine, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - J H Zhang
- Department of Pediatric Respiratory, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
| | - Z M Chen
- Department of Pulmonology, the Children's Hospital, Zhejiang University School of Medicine, Hangzhou 310052, China
| | - E M Liu
- Department of Respiratory, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - L Deng
- Department of Respiratory,Guangzhou Women and Children's Medical Center, Guangzhou 510623, China
| | - C H Liu
- Department of Allergy,Children's Hospital Capital Institute of Pediatrics, Beijing 100020, China
| | - L Xiang
- Department of Allergic Medicine, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - L Cao
- Department of Allergy,Children's Hospital Capital Institute of Pediatrics, Beijing 100020, China
| | - Y X Zou
- Department of Respiratory, Tianjin Children's Hospital, Tianjin 300134, China
| | - B P Xu
- Department of Respiratory Medicine, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - X Y Dong
- Department of Pulmonology, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200062, China
| | - Y Yin
- Department of Respiratory Medicine, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai 200062, China
| | - C L Hao
- Department of Respiratory,Children's Hospital of Soochow University, Suzhou 215002, China
| | - J G Hong
- Department of Pediatrics, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai 200080, China
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30
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Xiang L, Wang XY, Niu XX, Zhang L, Guo JZ, Zhu S, Zhang L. [A case of neonatal complete Kawasaki disease]. Zhonghua Er Ke Za Zhi 2022; 60:353-355. [PMID: 35385944 DOI: 10.3760/cma.j.cn112140-20211222-01065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- L Xiang
- Department of Neonatology, Northwest Women's and Children's Hospital, Xi'an 710061, China
| | - X Y Wang
- Department of Neonatology, Northwest Women's and Children's Hospital, Xi'an 710061, China
| | - X X Niu
- Department of Neonatology, Northwest Women's and Children's Hospital, Xi'an 710061, China
| | - L Zhang
- Department of Neonatology, Northwest Women's and Children's Hospital, Xi'an 710061, China
| | - J Z Guo
- Department of Neonatology, Northwest Women's and Children's Hospital, Xi'an 710061, China
| | - S Zhu
- Department of Neonatology, Northwest Women's and Children's Hospital, Xi'an 710061, China
| | - L Zhang
- Department of Neonatology, Northwest Women's and Children's Hospital, Xi'an 710061, China
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31
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Liu HH, Li YF, Mu XD, Xiang L, Liu CK, Hu M. [Multimodal imaging analysis of the cyst like lesion of condyle in temporomandibular joint]. Zhonghua Kou Qiang Yi Xue Za Zhi 2022; 57:142-148. [PMID: 35152649 DOI: 10.3760/cma.j.cn112144-20210419-00186] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the imaging features of condylar cystic degeneration of temporomandibular joint (TMJ) by cone-beam CT (CBCT), spiral CT, MRI and radionuclide bone imaging. Methods: From January 2018 to December 2020, thirty-two patients with cyst-like lesions of condylein temporomandibular joint were examined by CBCT, spiral CT, MRI and radionuclide bone imaging at the Department of Oral and Maxillofacial Surgery in General Hospital of Chinese PLA. There were 12 males and 20 females involved, aged from 16 to 65 years with an average age of (33.9±12.5) years. The characteristics of CBCT, spiral CT, MRI and radionuclide bone imaging were analyzed. Condylar cyst like lesions were classified as type A and type B based on the presence or absence of surface bone defects. Condylar cyst like lesions were classified as type Ⅰ(yes) and type Ⅱ(no) according to the accompanying bone marrow edema-like lesions of the condyles. The incidence of condylar bone marrow edema, disc displacement and abnormal bone metabolism were analyzed. Results: A total of 64 joint images of 32 patients were included, including 34 sides with TMJ cyst-like lesion and 6 sides with multiple cyst-like lesions,the total cyst-like lesions were 42. The largest diameter of cyst-like lesion ranged from 1.0 to 12.4 mm, with an average length of (3.7± 1.8) mm. There were 24 cases of type A TMJ cyst like lesion and 10 cases of type B cyst-like lesion. The detection rate of CBCT was 95.2% (40/42) and that of spiral CT was 100% (42/42), there was no significant difference (Calibration Chi-square=0.51, P=0.474). The detection rate of nuclear magnetic resonance was 80.1% (34/42), and the detection rate of cyst-like lesions less than 2 mm was 3/11. In the cyst like lesion side, there were 9 sides with anterior disc displacement with reduction, 20 sides with anterior disc displacement without reduction. In the non-cyst like lesion side, 10 sides with anterior disc displacement with reduction and 6 sides with anterior disc displacement without reduction. There was a significant difference in the displacement of the disc between cyst-like and non-cystic lesion side (χ²=7.80, P=0.005). MRI showed that 6 cases of cystic side[17.6% (6/34)] had bone marrow edema-like lesions (all type A), 1 case of non-cyst like lesions side [3.3% (1/30)] had bone marrow edema-like lesion, there was no significant difference between cystic and non-cystic lesions (Calibration Chi-square=2.04, P=0.153). There was a significant difference between type A and B cystic lesions (Fisher exact probability method, P=0.024). Radionuclide bone imaging showed abnormal bone metabolism in 26 patients in the cyst-like lesion side and 5 patients in the non-cyst like lesion side (χ²=22.82, P<0.001). Conclusions Multi-slice Spiral CT could detect the cyst-like lesion of TMJ condyle in the early stage, which is different from the large joint. And the formation mechanism may vary from the different classifications.
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Affiliation(s)
- H H Liu
- Department of Oral and Maxillofacial Surgery, General Hospital of Chinese PLA, Beijing 100853, China
| | - Y F Li
- Department of Oral and Maxillofacial Surgery, General Hospital of Chinese PLA, Beijing 100853, China
| | - X D Mu
- Department of Oral and Maxillofacial Surgery, General Hospital of Chinese PLA, Beijing 100853, China
| | - L Xiang
- Department of Oral and Maxillofacial Surgery, General Hospital of Chinese PLA, Beijing 100853, China
| | - C K Liu
- Department of Oral and Maxillofacial Surgery, School of Stomatology, Xi'an Medical University, Xi'an 710026, China
| | - M Hu
- Department of Oral and Maxillofacial Surgery, General Hospital of Chinese PLA, Beijing 100853, China
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Mu XD, Liu HH, Li YF, Xiang L, Hu M. [Research progress of dental pulp stem cells for peripheral nerve injury repair]. Zhonghua Kou Qiang Yi Xue Za Zhi 2022; 57:196-201. [PMID: 35152659 DOI: 10.3760/cma.j.cn112144-20211214-00546] [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
Peripheral nerve injuries are mainly related to severe trauma, fracture and tumor surgery, leading to reduced quality of life and impaired physical and mental health. The repair of peripheral nerve still faces great challenges in clinic, and the research on the regeneration and repair of peripheral nerve has become a hot issue in related disciplines. Cell therapy plays an irreplaceable role in tissue regeneration and repair. Schwann cells are ideal cells for peripheral nerve repair, but their limited sources inhibit the clinical application. Dental pulp stem cells are derived from neural crest, which provides a new cell source for nerve regeneration. The purpose of this article is to review the research progress of dental pulp stem cells for peripheral nerve repair.
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Affiliation(s)
- X D Mu
- Department of Oral and Maxillofacial Surgery, General Hospital of Chinese PLA, Beijing 100853, China
| | - H H Liu
- Department of Oral and Maxillofacial Surgery, General Hospital of Chinese PLA, Beijing 100853, China
| | - Y F Li
- Department of Oral and Maxillofacial Surgery, General Hospital of Chinese PLA, Beijing 100853, China
| | - L Xiang
- Department of Oral and Maxillofacial Surgery, General Hospital of Chinese PLA, Beijing 100853, China
| | - M Hu
- Department of Oral and Maxillofacial Surgery, General Hospital of Chinese PLA, Beijing 100853, China
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Liu HH, Li YF, Mu XD, Xiang L, Liu CK, Hu M. [Multimodal imaging analysis of the cyst like lesion of condyle in temporomandibular joint]. Zhonghua Kou Qiang Yi Xue Za Zhi 2022; 57:142-148. [PMID: 35172451 DOI: 10.1760/cma.j.cn112144-20210419-00186] [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: 06/14/2023]
Abstract
Objective: To investigate the imaging features of condylar cystic degeneration of temporomandibular joint (TMJ) by cone-beam CT (CBCT), spiral CT, MRI and radionuclide bone imaging. Methods: From January 2018 to December 2020, thirty-two patients with cyst-like lesions of condylein temporomandibular joint were examined by CBCT, spiral CT, MRI and radionuclide bone imaging at the Department of Oral and Maxillofacial Surgery in General Hospital of Chinese PLA. There were 12 males and 20 females involved, aged from 16 to 65 years with an average age of (33.9±12.5) years. The characteristics of CBCT, spiral CT, MRI and radionuclide bone imaging were analyzed. Condylar cyst like lesions were classified as type A and type B based on the presence or absence of surface bone defects. Condylar cyst like lesions were classified as type Ⅰ(yes) and type Ⅱ(no) according to the accompanying bone marrow edema-like lesions of the condyles. The incidence of condylar bone marrow edema, disc displacement and abnormal bone metabolism were analyzed. Results: A total of 64 joint images of 32 patients were included, including 34 sides with TMJ cyst-like lesion and 6 sides with multiple cyst-like lesions,the total cyst-like lesions were 42. The largest diameter of cyst-like lesion ranged from 1.0 to 12.4 mm, with an average length of (3.7±1.8) mm. There were 24 cases of type A TMJ cyst like lesion and 10 cases of type B cyst-like lesion. The detection rate of CBCT was 95.2% (40/42) and that of spiral CT was 100% (42/42), there was no significant difference (Calibration Chi-square=0.51, P=0.474). The detection rate of nuclear magnetic resonance was 80.1% (34/42), and the detection rate of cyst-like lesions less than 2 mm was 3/11. In the cyst like lesion side, there were 9 sides with anterior disc displacement with reduction, 20 sides with anterior disc displacement without reduction. In the non-cyst like lesion side, 10 sides with anterior disc displacement with reduction and 6 sides with anterior disc displacement without reduction. There was a significant difference in the displacement of the disc between cyst-like and non-cystic lesion side (χ²=7.80, P=0.005). MRI showed that 6 cases of cystic side[17.6% (6/34)] had bone marrow edema-like lesions (all type A), 1 case of non-cyst like lesions side [3.3% (1/30)]had bone marrow edema-like lesion, there was no significant difference between cystic and non-cystic lesions (Calibration Chi-square=2.04, P=0.153). There was a significant difference between type A and B cystic lesions (Fisher exact probability method, P= 0.024). Radionuclide bone imaging showed abnormal bone metabolism in 26 patients in the cyst-like lesion side and 5 patients in the non-cyst like lesion side (χ²=22.82, P<0.001). Conclusions Multi-slice Spiral CT could detect the cyst-like lesion of TMJ condyle in the early stage, which is different from the large joint. And the formation mechanism may vary from the different classifications.
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Affiliation(s)
- H H Liu
- Department of Oral and Maxillofacial Surgery, General Hospital of Chinese PLA, Beijing 100853, China
| | - Y F Li
- Department of Oral and Maxillofacial Surgery, General Hospital of Chinese PLA, Beijing 100853, China
| | - X D Mu
- Department of Oral and Maxillofacial Surgery, General Hospital of Chinese PLA, Beijing 100853, China
| | - L Xiang
- Department of Oral and Maxillofacial Surgery, General Hospital of Chinese PLA, Beijing 100853, China
| | - C K Liu
- Department of Oral and Maxillofacial Surgery, School of Stomatology, Xi'an Medical University, Xi'an 710026, China
| | - M Hu
- Department of Oral and Maxillofacial Surgery, General Hospital of Chinese PLA, Beijing 100853, China
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Wang Y, Xu J, Wang Y, Xiang L, He X. S-20, a steroidal saponin from the berries of black nightshade, exerts anti-multidrug resistance activity in K562/ADR cells through autophagic cell death and ERK activation. Food Funct 2022; 13:2200-2215. [PMID: 35119449 DOI: 10.1039/d1fo03191k] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Multidrug resistance (MDR) is a major cause of chemotherapy failure. Adriamycin (ADR) has been widely used to treat cancer, however, as a substrate of the adenosine triphosphate binding cassette (ABC) transporter, it is easy to develop drug resistance during the treatment. Here, we demonstrated that steroidal saponin S-20 isolated from the berries of black nightshade has comparable cytotoxicity in ADR-sensitive and resistant K562 cell lines. Autophagy is generally considered to be a protective mechanism to mediate MDR during treatment. However, we found that S-20-induced cell death in K562/ADR is associated with autophagy. We further explored the underlying mechanisms and found that S-20 induces caspase-dependent apoptosis in ADR-sensitive and resistant K562 cell lines. Most importantly, S-20-induced autophagy activates the ERK pathway and then inhibits the expression of drug resistance protein, which is the main reason to overcome K562/ADR resistance, rather than apoptosis. Taken together, our findings emphasize that S-20 exerts anti-multidrug resistance activity in K562/ADR cells through autophagic cell death and ERK activation, which may be considered as an effective strategy.
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Affiliation(s)
- Yi Wang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China.
| | - Jingwen Xu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China. .,Guangdong Engineering Research Center for Lead Compounds & Drug Discovery, Guangzhou, 510006, China
| | - Yihai Wang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China. .,Guangdong Engineering Research Center for Lead Compounds & Drug Discovery, Guangzhou, 510006, China
| | - Limin Xiang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China. .,Guangdong Engineering Research Center for Lead Compounds & Drug Discovery, Guangzhou, 510006, China
| | - Xiangjiu He
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China. .,Guangdong Engineering Research Center for Lead Compounds & Drug Discovery, Guangzhou, 510006, China
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Duan ZJ, Yao K, Ma Z, Hu ZJ, Xiang L, Qi XL. [Pediatric SMARCB1/INI1-deficient poorly differentiated chordoma of the skull base: report of five cases and review of literature]. Zhonghua Bing Li Xue Za Zhi 2022; 51:33-38. [PMID: 34979751 DOI: 10.3760/cma.j.cn112151-20210705-00482] [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 investigate the clinicopathological characteristics and differential diagnosis of pediatric SMARCB1/INI1-deficient poorly differentiated chordoma (PDC) of the skull base. Methods: Five cases of SMARCB1/INI1-deficient PDC were identified in 139 cases of chordoma diagnosed in Sanbo Brain Institute, Capital Medical University, Beijing, China from March 2017 to March 2021. The clinical and imaging data of the 5 PDCs were collected. H&E and immunohistochemical staining, and DNA methylation array were used, and the relevant literatures were reviewed. Results: All 5 PDCs were located at the clivus. The average age of the patients was 6.4 years, ranging from 3 to 16 years. Three patients were female and two were male. Morphologically, in contrast with classical chordomas, they presented as epithelioid or spindle tumor cells organized in sheets or nests, with necrosis, active mitoses, and infiltration into surrounding tissue. All cases showed positivity of CKpan, EMA, vimentin and brachyury (nuclear stain), and loss of nuclear SMARCB1/INI1 expression. S-100 protein expression was not frequent (2/5). Ki-67 proliferative index was high (20%-50%). All cases had over-expressed p53. It was necessary to differentiate SMARCB1/INI1-dificient PDC from SMARCB1/INI1-dificient tumors occurring at skull base of children or the tumors with epithelial and spindle cell morphological features. The 3 PDCs with DNA methylation testing showed the methylation profiles different from the pediatric atypical teratoid/rhabdoid tumors. They formed an independent methylation profile cluster. The clinical prognosis of the 5 patients was poor, and the overall survival time was 2-17 months. Conclusions: PDC is a special subtype of chordoma, which often affects children and occurs in the clivus. The PDC shares epithelioid or spindle cell morphologic features which are different from the classic chordoma. Besides the typical immunohistochemical profile of chordoma, PDC also has loss of nuclear SMARCB1/INI1 expression and distinct epigenetic characteristics.
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Affiliation(s)
- Z J Duan
- Department of Pathology, Sanbo Brain Institute, Capital Medical University, Beijing 100093, China
| | - K Yao
- Department of Pathology, Sanbo Brain Institute, Capital Medical University, Beijing 100093, China
| | - Z Ma
- Department of Pathology, Sanbo Brain Institute, Capital Medical University, Beijing 100093, China
| | - Z J Hu
- Department of Pathology, Sanbo Brain Institute, Capital Medical University, Beijing 100093, China
| | - L Xiang
- Department of Pathology, Sanbo Brain Institute, Capital Medical University, Beijing 100093, China
| | - X L Qi
- Department of Pathology, Sanbo Brain Institute, Capital Medical University, Beijing 100093, China
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Liu HH, Li YF, Mu XD, Xiang L, Tan XY, Hu M. [Design and application of three-dimensional printing guide plate for oral and maxillofacial surgery]. Zhonghua Kou Qiang Yi Xue Za Zhi 2021; 56:1085-1091. [PMID: 34763403 DOI: 10.3760/cma.j.cn112144-20210308-00104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the application of three-dimensional (3D) printing technology in oral and maxillofacial surgery, so as to optimize and standardize its design and application. Methods: From January 2010 to December 2020, 40 cases of mandibular tumor surgery (20 cases of conventional group and 20 cases of guide plate group), 20 cases of temporomandibular joint replacement surgery (10 cases of conventional group and 10 cases of guide plate group), 20 cases of malocclusion surgery (10 cases of conventional group and 10 cases of guide plate group), 20 cases of radioactive particle implantation surgery (10 cases of CT guided group and 10 cases of guide plate group) were analyzed. All patients in the guide plate group were scanned with spiral CT, and the 3D models of the jaw and the donor bone area were reconstruction. According to the purpose of surgical guide, the design and clinical application of osteotomy guide, in place forming guide and puncture positioning guide were analyzed respectively. The design time of guide plate, the performance and printing time of guide material, the sterilization method of guide and its influence on accuracy, and the influence of guide application on operation time and accuracy were analyzed. Results: The design time of orthognathic guide plate was (2.9±1.8) d, and the design time of mandibular transplantation guide plate was (2.8±1.8) d, that of the temporomandibular joint replacement guide plate and the puncture guide plate was (2.2±0.3) and (0.9±0.3) d. The average printing time of the 40 maxilla model was (11.1±1.6) h, and that of the 40 mandible models was (2.6±0.4) h. The average printing time of the 40 sets of osteotomy and positioning guide plate was (2.5±0.8) h, and that of the 10 puncture positioning guide plate (1.1±0.4) h. The operation time of the conventional group was (6.99±1.10) and (6.02±0.55) h. In the CT guided group, the operation time was (1.91±0.55) h and (0.89±0.15). The operation time of mandible tumor operation and radioactive particle implantation in the guide plate group was less than that in the control group (P<0.05), and there was no significant difference in the operation time of orthognathic surgery and joint replacement between the two groups (P>0.05). The displacement distance of the mark points in the TMJ replacement and mandibular tumor operation guide group was less than that in the control group (P<0.05), and the error of the guide plate in orthognathic operation and particle implantation operation was basically less than 1 mm. Conclusions: The application of the surgical guide plate made by 3D printing technology helps to complete the operation more safely, accurately and quickly, But its design, manufacture and disinfection still need to be further standardized and improved.
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Affiliation(s)
- H H Liu
- Department of Oral and Maxillofacial Surgery, General Hospital of Chinese PLA, Beijing 100853, China
| | - Y F Li
- Department of Oral and Maxillofacial Surgery, General Hospital of Chinese PLA, Beijing 100853, China
| | - X D Mu
- Department of Oral and Maxillofacial Surgery, General Hospital of Chinese PLA, Beijing 100853, China
| | - L Xiang
- Department of Oral and Maxillofacial Surgery, General Hospital of Chinese PLA, Beijing 100853, China
| | - X Y Tan
- Department of Stomatology, The Fourth Medical Center of PLA General Hospital, Beijing 100142, China
| | - M Hu
- Department of Oral and Maxillofacial Surgery, General Hospital of Chinese PLA, Beijing 100853, China
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Xiang L, Wu J. Five-Year Result After Reduction of the Target Volume of Intensity Modulated Radiotherapy Following Induction Chemotherapy in Locoregionally Advanced Nasopharyngeal Carcinoma: A Phase 3, Multicenter, Randomized Controlled Trial. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Jiang Z, Chen H, Chen L, Huang Q, Zhang Q, Zhou J, Li Q, Wang D, Jiang M, Liu Y, Ma Y, Xiang L. Epidemiology and clinicopathology in genital dermatoses: a retrospective study of 3052 skin biopsy cases. J Eur Acad Dermatol Venereol 2021; 36:e240-e242. [PMID: 34704626 DOI: 10.1111/jdv.17774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 10/22/2021] [Indexed: 11/26/2022]
Affiliation(s)
- Z Jiang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - H Chen
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - L Chen
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Q Huang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Q Zhang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - J Zhou
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Q Li
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - D Wang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - M Jiang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Y Liu
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Y Ma
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - L Xiang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
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Wang Z, Xu J, Wang Y, Xiang L, He X. Total saponins from Tupistra chinensis baker inhibits growth of human gastric cancer cells in vitro and in vivo. J Ethnopharmacol 2021; 278:114323. [PMID: 34116191 DOI: 10.1016/j.jep.2021.114323] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [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: 03/29/2021] [Revised: 06/01/2021] [Accepted: 06/05/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Tupistra chinensis Baker (syn. Rohdea chinensis), an antitumor folk herb mainly distributed in China, its rhizome has been historically used to treat gastric cancer. Studies showed that the steroidal saponins were the main bioactive components in the rhizome of T. chinensis. Our previous studies have confirmed that the steroidal saponins have a variety of anti-tumor activities. However, the underlying anti-tumor mechanism of the total steroidal saponins of T. chinensis (TCS) remains to be revealed. AIM OF THE STUDY In the present study, we studied the potential anti-proliferative activity and anti-tumor mechanism of TCS on gastric cancer in vitro and in vivo. METHODS In vitro, 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) assay was used to detect the proliferation ability of TCS on SGC-7901 cells and AGS cells. Flow cytometry were performed to analyze cell apoptosis, cell cycle, mitochondrial membrane potential and reactive oxygen species expression level. Western blotting was performed to validate the expression of proteins in related pathways. In vivo, a xenograft model was established by injecting SGC-7901 cells into nude mice. RESULTS In vitro, TCS inhibited the proliferation of gastric cancer cells. TCS effectively induced apoptosis by PI3K/Akt/mTOR signaling pathway in SGC-7901 cells, and promoted apoptosis via p53-mediated pathway in AGS cells. TCS also exhibited inhibitory activity in blocking the migration of gastric cancer cells. In vivo, TCS significantly inhibited the growth of xenograft tumor. CONCLUSION These results indicated that TCS exhibited significant anti-gastric cancer effects in vitro and in vivo.
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Affiliation(s)
- Zhe Wang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China.
| | - Jingwen Xu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China; Guangdong Engineering Research Center for Lead Compounds & Drug Discovery, Guangzhou, 510006, China.
| | - Yihai Wang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China; Guangdong Engineering Research Center for Lead Compounds & Drug Discovery, Guangzhou, 510006, China.
| | - Limin Xiang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China; Guangdong Engineering Research Center for Lead Compounds & Drug Discovery, Guangzhou, 510006, China.
| | - Xiangjiu He
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China; Guangdong Engineering Research Center for Lead Compounds & Drug Discovery, Guangzhou, 510006, China.
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Yang Y, Nagelreiter I, Kremslehner C, Wu X, Xiang L, Zhang C, Gruber F. 310 The role of autophagy on IFN-γ function in keratinocytes. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.08.317] [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: 11/16/2022]
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Abstract
The rise of single-molecule localization microscopy (SMLM) and related super-resolution methods over the past 15 years has revolutionized how we study biological and materials systems. In this Perspective, we reflect on the underlying philosophy of how diffraction-unlimited pictures containing rich spatial and functional information may gradually emerge through the local accumulation of single-molecule measurements. Starting with the basic concepts, we analyze the uniqueness of and opportunities in building up the final picture one molecule at a time. After brief introductions to the more established multicolor and three-dimensional measurements, we highlight emerging efforts to extend SMLM to new dimensions and functionalities as fluorescence polarization, emission spectra, and molecular motions, and discuss rising opportunities and future directions. With single molecules as our quanta, the bottom-up accumulation approach provides a powerful conduit for multidimensional microscopy at the nanoscale.
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Xiang L, Li YF, Liu HH, Zhang XH, Mu XD, Hu M. [Research progress in signal molecules and transcription factors related to the development of temporomandibular joint in embryonic stage]. Zhonghua Kou Qiang Yi Xue Za Zhi 2021; 56:805-809. [PMID: 34404148 DOI: 10.3760/cma.j.cn112144-20210118-00026] [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: 11/05/2022]
Abstract
Temporomandibular joint (TMJ) is a unique synovial joint in mammals. There have been many reports on the structure and function of TMJ during embryonic development.Although studies on TMJ related signal molecules and transcription factors during embryonic development have been carried out since the last century, there are few reports on the molecular genetic regulation of TMJ compared with the abundant molecular regulation information of synovial joint. The studies on signal molecules and transcription factors of TMJ embryonic development were mainly conducted in rodents.There were few studies on the regulatory molecules and their regulatory mechanisms related to the development of TMJ conducted in large mammals and human embryos. This article reviews the research progress of key signal molecules and transcription factors of TMJ in embryonic development on the basis of modern molecular biology technology in order to find more core regulatory molecules and understand their regulation mechanism on TMJ development.
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Affiliation(s)
- L Xiang
- Department of Oral and Maxillofacial Surgery, General Hospital of Chinese PLA, Beijing 100853, China
| | - Y F Li
- Department of Oral and Maxillofacial Surgery, General Hospital of Chinese PLA, Beijing 100853, China
| | - H H Liu
- Department of Oral and Maxillofacial Surgery, General Hospital of Chinese PLA, Beijing 100853, China
| | - X H Zhang
- Department of Periodontology and Oral Medicine, General Hospital of Chinese PLA, Beijing 100853, China
| | - X D Mu
- Department of Oral and Maxillofacial Surgery, General Hospital of Chinese PLA, Beijing 100853, China
| | - M Hu
- Department of Oral and Maxillofacial Surgery, General Hospital of Chinese PLA, Beijing 100853, China
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Huang HJ, Xiang L, Ge WT, Hou XL, Tang LX, Wang PP. [Clinical efficacy of the combined diagnosis and management for children with airway allergic diseases]. Zhonghua Yu Fang Yi Xue Za Zhi 2021; 55:818-826. [PMID: 34304417 DOI: 10.3760/cma.j.cn112150-20201201-01414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the clinical efficacy of the combined diagnosis and management in children with airway allergic diseases(bronchial asthma, allergic rhinitis). Methods: This observational study belongs to cluster sampling cases, which included the clinical data from children with airway allergic diseases in Allergy Department and Otorhinolaryngology Department of Beijing Children's Hospital from April to December in 2015. They were followed up every three months during 12 months. All the subjects were required to continuously record daily symptom by diary card. ACT/c-ACT, VAS, treatment steps to control asthma, respiratory infections, wheeze, pulmonary function(FEV1%pred,FEV1/FVC,PEF%pred,FEF25%pred,FEF50%pred,FEF75%pred,MMEF%pred), FeNO were assessed in every visiting. The mean±standard deviation was used for the measurement data in accordance with normal distribution. Comparing the pulmonary function indexes at every point, the measurement data with normal distribution and uniform variance were analyzed by single factor analysis of variance, and the measurement data with uneven variance were tested by non-parametric rank sum test. Results: Among 147 recruited participants, 106 completed the combined diagnosis and management. The airway allergic diseases control rate was 87.7% at 12 months after the combined diagnosis and management. At every point, the average daily symptom score and VAS score which were significantly lower than at the baseline(H=35.854,P=0.000)[ 1.2(0.7,2.2),0.6(0.2,1.5),0.4(0.1,1.0),0.5(0.1,1.1) vs 2.0(1.0,3.5)],(H=39.559,P=0.000)[2.5(0.5,4.7),2.2(0.3,4.4),1.8(0.2,4.6),1.6(0.3,3.8) vs 6.9(4.1,9.8)]. ACT/c-ACT score at 3, 6, 9, 12 months were significantly higher than at the baseline (H=79.695,P=0.000) [25.0(22.5,27.0),26.0(24.0,27.0),25.0(23.0,27.0),25.0(24.0,27.0) vs 20.0(17.0,22.0)]. FEV1%pred and FEF25%pred at 3, 6 months were significantly higher than at the baseline (F=3.563,P=0.007)(104.7±12.6 vs 96.8±14.5,103.0±10.3 vs 96.8±14.5),(F=2.456,P=0.046)(96.6±22.0 vs 85.0±21.9,93.3±18.0 vs 85.0±21.9). PEF%pred at 3, 6, 9, 12 months after the combined diagnosis and management were significantly higher than at the baseline(F=5.497,P=0.000)(105.1±18.1,101.2±15.3,99.7±17.1,99.8±17.5 vs 90.3±17.8). FeNO at 3, 6, 9, 12 months respectively were no significantly differences at the baseline(F=0.751,P=0.558)(25.7±23.6 vs 30.7±25.6,25.9±16.5 vs 30.7±25.6,27.5±20.2 vs 30.7±25.6,30.6±19.6 vs 30.7±25.6).The respiratory infections rate were 69.8%(74/106),67.0%(71/106),60.4%(64/106),51.9%(55/106) at 3, 6, 9, 12 months respectively. The wheezing rate was 24.5%(26/106),14.2%(15/106),11.3%(12/106),7.5%(8/106) at 3, 6, 9, 12 months respectively. Conclusions: The combined diagnosis and management can significantly improve the control level of children's airway allergic diseases, which should be implemented in the management of children's airway allergic diseases.
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Affiliation(s)
- H J Huang
- Key Laboratory of Major Diseases in Children, Ministry of Education, Department of Allergy, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - L Xiang
- Key Laboratory of Major Diseases in Children, Ministry of Education, Department of Allergy, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - W T Ge
- Key Laboratory of Major Diseases in Children, Ministry of Education, Department of Otolaryngology Head and Neck Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - X L Hou
- Key Laboratory of Major Diseases in Children, Ministry of Education, Department of Allergy, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - L X Tang
- Key Laboratory of Major Diseases in Children, Ministry of Education, Department of Otolaryngology Head and Neck Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - P P Wang
- Key Laboratory of Major Diseases in Children, Ministry of Education, Department of Otolaryngology Head and Neck Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
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Liu M, Xie J, Tan C, Ruan X, Wang Z, Luo X, Lin J, Xiang L, Li A, Han Z, Liu S. [Japan narrow-band imaging Expert Team type 2B colorectal cancer: consistency between endoscopic prediction and pathological diagnosis]. Nan Fang Yi Ke Da Xue Xue Bao 2021; 41:942-946. [PMID: 34238749 DOI: 10.12122/j.issn.1673-4254.2021.06.19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To explore the potential factors that affect the accuracy of endoscopic diagnosis for Japan narrow-band imaging (NBI) Expert Team (JNET) type 2B colorectal lesions. OBJECTIVE The clinical data were collected from 261 patients with JNET type 2B colorectal lesions diagnosed in Nanfang Hospital between July, 2018 and July, 2021. We analyzed the macroscopic type, size, location or pit pattern classification of the lesions for their potential influence of the diagnostic accuracy of JNET type 2B lesions. OBJECTIVE The 261 lesions included 91 low-grade intramucosal neoplasia lesions (34.9%), 132 high-grade intramucosal neoplasia lesions (50.6%), 13 submucosal invasive cancer lesions (5.0%), and 25 deep submucosal invasive cancer lesions (9.6%). The coincidence rate between endoscopic prediction and pathological diagnosis of these lesions was 55.6% (145/ 261). The macroscopic type and size of the lesions were significantly associated with the diagnostic accuracy of JNET type 2B lesions (P < 0.001). There was a significant difference in the diagnostic accuracy among the lesions with different pit pattern types (P < 0.001). OBJECTIVE Both the macroscopic type and size affect the accuracy of endoscopic diagnosis of JNET type 2B colorectal lesions. JNET classification combined with pit pattern types can have better accuracy in predicting the pathological diagnosis of these lesions.
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Affiliation(s)
- M Liu
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - J Xie
- First Clinical Medical College of Southern Medical University, Guangzhou 510515, China
| | - C Tan
- Department of Endoscopy, First Hospital of Hunan University of Chinese Medicine, Changsha 410208, China
| | - X Ruan
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Z Wang
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - X Luo
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - J Lin
- Department of Gastroenterology, Longgang District People's Hospital, Shenzhen 518172, China
| | - L Xiang
- Department of Gastroenterology, Longgang District People's Hospital, Shenzhen 518172, China
| | - A Li
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Z Han
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - S Liu
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
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Xiang L, Fong W, Low A, Leung YY, Gandhi M, Xin X, Uy E, Hamilton L, Thumboo J. POS1411 EARLY IDENTIFICATION OF AXIAL SPONDYLOARTHRITIS IN A MULTI-ETHNIC ASIAN POPULATION. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.449] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:To facilitate earlier diagnosis of spondyloarthritis (SpA), we have previously cross-culturally adapted a self-administered screening questionnaire.Objectives:We aimed to improve the sensitivity of this questionnaire as a screening tool by comparing various scoring methods.Methods:Subjects newly referred to a rheumatology clinic self-administered the questionnaire before seeing a rheumatologist. Identification of axial SpA by the questionnaire using original scoring (Method A) and scoring based on Assessment of SpondyloArthritis International Society (ASAS) inflammatory back pain (IBP) criteria (Method B), ASAS referral criteria (Method C), ASAS classification criteria (Method D) and a combination of ASAS referral and classification criteria (Method E) were compared to classification by the ASAS classification criteria and diagnosis by rheumatologist. Since Methods B-E were based on SpA features, we compared self-reported vs rheumatologist-documented features in subjects with axial SpA.Results:Of 1418 subjects (age: 54 ± 14 years, female: 73%), 39 were classified as axial SpA cases by classification criteria. Methods A-E yielded sensitivities of 39%, 72%, 67%, 49% and 85%, respectively, among patients newly referred to the rheumatology clinic (Table 1). Rheumatologist-documented clinical SpA features exceeded self-report for IBP (62 vs 44%) and uveitis (15 vs 5%). The reverse was true for arthritis (21 vs 80%), enthesitis (28 vs 33%), dactylitis (3 vs 18%), good response to NSAIDs (33 vs 41%) and family history for SpA (5 vs 10%).Table 1.Performance of the five scoring methods for the cross-culturally adapted Hamilton axial SpA questionnaire.Scoring methodSensitivity(95% confidence interval)Specificity(95% confidence interval)Positive predictive value(95% confidence interval)Negative predictive value(95% confidence interval)Method A38.5(23.4 – 55.4)93.7(92.3 – 94.9)14.7(8.5 – 23.1)98.2(97.3 – 98.8)Method B71.8(55.1 – 85.0)73.1(70.7 – 75.4)7.0(4.7 – 10.0)98.9(98.1 – 99.5)Method C66.7(49.8 – 80.9)77.8(75.5 – 80.0)7.8(5.2 – 11.3)98.8(98.0 – 99.4)Method D48.7(32.4 – 65.2)74.9(72.5 – 77.2)5.2(3.2 – 8.0)98.1(97.1 – 98.8)Method E84.6(69.5 – 94.1)37.2(34.6 – 39.8)3.7(2.5 – 5.1)98.8(97.5 – 99.6)Method A: the original scoring defined by the questionnaire developers; Method B: a scoring based on the ASAS IBP criteria; Method C: a scoring based on the ASAS referral criteria; Method D: a scoring based on the ASAS classification criteria for axial and peripheral SpA; Method E: a scoring based on a combination of the ASAS referral and classification criteria.Conclusion:A self-administered questionnaire scored based on a combination of ASAS referral and classification criteria achieved high sensitivity in identifying axial SpA in subjects referred to a rheumatology clinic. This supports its evaluation as a screening tool for axial SpA in the general population.References:[1]Xiang L, Teo EPS, Low AHL, Leung YY, Fong W, Xin X, et al. Cross-cultural adaptation of the Hamilton axial spondyloarthritis questionnaire and development of a Chinese version in a multi-ethnic Asian population. Int J Rheum Dis. 2019;22(9):1652-60.[2]Sieper J, Rudwaleit M, Baraliakos X, Brandt J, Braun J, Burgos-Vargas R, et al. The Assessment of SpondyloArthritis international Society (ASAS) handbook: a guide to assess spondyloarthritis. Annals of the rheumatic diseases. 2009;68 Suppl 2:ii1-44.[3]Poddubnyy D, van Tubergen A, Landewe R, Sieper J, van der Heijde D. Development of an ASAS-endorsed recommendation for the early referral of patients with a suspicion of axial spondyloarthritis. Annals of the rheumatic diseases. 2015;74(8):1483-7.[4]Rudwaleit M, van der Heijde D, Landewe R, Akkoc N, Brandt J, Chou CT, et al. The Assessment of SpondyloArthritis International Society classification criteria for peripheral spondyloarthritis and for spondyloarthritis in general. Annals of the rheumatic diseases. 2011;70(1):25-31.Acknowledgements:This work was supported by a Health Services Research Grant (HSRG) from the Singapore Ministry of Health National Medical Research Council [grant number: NMRC/HSRG/0075/2017].Disclosure of Interests:None declared
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Xiang L, Low A, Leung YY, Fong W, Gandhi M, Yoon S, Lau TC, Koh DR, Thumboo J. POS1413 INTERVAL BETWEEN SYMPTOM ONSET AND DIAGNOSIS AMONG PATIENTS WITH AUTOIMMUNE RHEUMATIC DISEASES IN A MULTI-ETHNIC ASIAN POPULATION. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.1713] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:The interval between symptom onset and diagnosis can often be longer than is ideal in autoimmune rheumatic diseases (ARDs).Objectives:We aimed to characterise this interval among patients newly diagnosed with ARDs in a multi-ethnic Asian population and to identify factors associated with a longer interval.Methods:We used Scott’s model of pathways to treatment to characterise the interval between symptom onset and diagnosis into 4 intervals: #1 between symptom onset and first seeking medical attention, #2 between first medical attention and rheumatology referral, #3 between rheumatology referral and first rheumatology assessment, and #4 between first rheumatology assessment and diagnosis. Linear regression models were used to identify factors associated with a longer the overall interval between symptom onset and diagnosis and Interval #1.Results:Among 259 patients (age: 51±15 years, female: 71%, most common three ARDs: rheumatoid arthritis (n = 75), axial spondyloarthritis (n = 40) and psoriatic arthritis (n = 35)), the median overall interval was 11.5 months. Interval #1 (median = 4.9 months) was significantly longer than the other intervals (Table 1). Patients with axial spondyloarthritis had a significantly longer overall interval (median = 38.7 months) and Interval #1 (median = 26.6 months) compared to patients with RA (median = 7.6 and 3.5 months, respectively), PsA (median = 7.0 and 2.6 months, respectively) and the other ARDs. Gender was the only patient-related factor significantly associated with the overall interval (reference = male, coefficient = -15.3, p = 0.033) in regression models.Conclusion:A longer than ideal interval between symptom onset and diagnosis was observed among patients with ARDs. This was primarily due to a relatively long interval between symptom onset and first seeking medical attention, and highlights the importance of interventions targeting patients prior to first medical attention in reducing the duration between symptom onset and diagnosis.References:[1]Scott SE, Walter FM, Webster A, Sutton S, Emery J. The model of pathways to treatment: conceptualization and integration with existing theory. Br J Health Psychol. 2013;18(1):45-65.Table 1.Interval between symptom onset and diagnosisOverall interval, months, median (lower and upper quartiles)†Interval #1, months, median (lower and upper quartiles)Interval #2, months, median (lower and upper quartiles)Interval #3, months, median (lower and upper quartiles)Interval #4, months, median (lower and upper quartiles)Overall(n = 259)11.5(4.7 – 36.0)4.9(1.0 – 24.0)0.3(0.0 – 3.9)1.5(0.8 – 1.8)0.0(0.0 – 1.2)RA(n = 75)7.6(3.1 – 14.8)3.5(1.3 – 11.6)0.2(0.0 – 2.5)1.3(0.6 – 1.6)0.0(0.0 – 0.2)AxSpA(n = 40)38.7(9.6 – 66.7)26.6(4.2 – 56.1)1.6(0.0 – 7.6)1.6(1.2 – 2.3)0.0(0.0 – 2.0)PsA(n = 35)7.0(3.0 – 28.4)2.6(0.2 – 11.3)0.5(0.2 – 3.9)1.6(0.6 – 1.7)0.0(0.0 – 0.0)Seronegative IA(n = 21)12.0(4.7 – 22.8)6.4(1.9 – 34.4)0.1(0.0 – 4.6)1.4(1.3 – 1.5)0.0(0.0 – 0.8)SjS(n = 27)14.2(6.0 – 48.0)4.6(0.6 – 19.0)0.3(0.0 – 3.9)1.6(0.9 – 1.9)0.8(0.0 – 2.3)UCTD(n = 27)15.7(5.1 – 39.8)2.2(0.7 – 24.0)0.8(0.1 – 8.1)1.6(0.5 – 1.8)1.2(0.0 – 2.1)Other ARDs(n = 34)8.1(5.3 – 36.0)6.3(0.9 – 31.7)0.2(0.0 – 1.1)1.5(1.2 – 1.8)0.3(0.0 – 1.1)Overall interval and Intervals #1-4: refer to abstract for definitions; RA: rheumatoid arthritis; axSpA: axial spondyloarthritis; PsA: psoriatic arthritis; IA: inflammatory arthritis; SjS: Sjögren’s syndrome; UCTD: undifferentiated connective tissue disease; other ARDs: systemic lupus erythematosus, systemic sclerosis, idiopathic inflammatory myopathies, palindromic rheumatism and overlap syndromes.†Intervals #1-4 did not sum to the overall interval mainly due to the fact that Intervals #1-4 might not available for all patients.Disclosure of Interests:None declared
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Jiang NN, Xiang L. [Prevention and long-term management of anaphylaxis in children]. Zhonghua Yu Fang Yi Xue Za Zhi 2021; 55:566-573. [PMID: 34034395 DOI: 10.3760/cma.j.cn112150-20210308-00228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Anaphylaxis is increasingly in children. Foods are the most common triggers. Anaphylaxis is currently undernotified, underdiagnosed, and undertreated in China. Recurrence of anaphylaxis has been recorded in one-third of cases, thus it is essential to prevent recurrence in long-term personalized management of anaphylaxis. Here it reviews the avoidance of triggers and cofactors/risk factors,long-term management of anaphylaxis. This article aims to increase awareness of anaphylaxis in children in order to improve management and prevention of recurrences.
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Affiliation(s)
- N N Jiang
- Key Laboratory of Major Diseases in Children, Ministry of Education, Department of Allergy, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045,China
| | - L Xiang
- Key Laboratory of Major Diseases in Children, Ministry of Education, Department of Allergy, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045,China
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Gupta N, Cullison C, Mally A, Xiang L, Hill ST, Beveridge MG. Certain public-reported immune-mediated adverse events for PD-1 inhibitors in melanoma occur at higher rates than in clinical trials. J Eur Acad Dermatol Venereol 2021; 35:e667-e670. [PMID: 34014567 DOI: 10.1111/jdv.17373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 03/30/2021] [Accepted: 04/28/2021] [Indexed: 11/29/2022]
Affiliation(s)
- N Gupta
- Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - C Cullison
- Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - A Mally
- Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - L Xiang
- Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - S T Hill
- Department of Dermatology, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - M G Beveridge
- Department of Dermatology, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
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Zheng DX, Ning AY, Levoska MA, Xiang L, Wong C, Scott JF. TikTok™, teens and isotretinoin: recommendations for identifying trending acne-related content on the world's most popular social media platform. Clin Exp Dermatol 2021; 46:1129-1130. [PMID: 33811769 DOI: 10.1111/ced.14669] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 03/30/2021] [Indexed: 11/27/2022]
Affiliation(s)
- D X Zheng
- Department of Dermatology, University Hospitals Cleveland Medical Center, Case Western Reserve University, Cleveland, OH, USA
| | - A Y Ning
- Department of Dermatology, University Hospitals Cleveland Medical Center, Case Western Reserve University, Cleveland, OH, USA
| | - M A Levoska
- Department of Dermatology, University Hospitals Cleveland Medical Center, Case Western Reserve University, Cleveland, OH, USA
| | - L Xiang
- Department of Dermatology, University Hospitals Cleveland Medical Center, Case Western Reserve University, Cleveland, OH, USA
| | - C Wong
- Department of Dermatology, University Hospitals Cleveland Medical Center, Case Western Reserve University, Cleveland, OH, USA
| | - J F Scott
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Chen K, Yan R, Xiang L, Xu K. Excitation spectral microscopy for highly multiplexed fluorescence imaging and quantitative biosensing. Light Sci Appl 2021; 10:97. [PMID: 33963178 PMCID: PMC8105378 DOI: 10.1038/s41377-021-00536-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 04/13/2021] [Accepted: 04/15/2021] [Indexed: 05/24/2023]
Abstract
The multiplexing capability of fluorescence microscopy is severely limited by the broad fluorescence spectral width. Spectral imaging offers potential solutions, yet typical approaches to disperse the local emission spectra notably impede the attainable throughput. Here we show that using a single, fixed fluorescence emission detection band, through frame-synchronized fast scanning of the excitation wavelength from a white lamp via an acousto-optic tunable filter, up to six subcellular targets, labeled by common fluorophores of substantial spectral overlap, can be simultaneously imaged in live cells with low (~1%) crosstalks and high temporal resolutions (down to ~10 ms). The demonstrated capability to quantify the abundances of different fluorophores in the same sample through unmixing the excitation spectra next enables us to devise novel, quantitative imaging schemes for both bi-state and Förster resonance energy transfer fluorescent biosensors in live cells. We thus achieve high sensitivities and spatiotemporal resolutions in quantifying the mitochondrial matrix pH and intracellular macromolecular crowding, and further demonstrate, for the first time, the multiplexing of absolute pH imaging with three additional target organelles/proteins to elucidate the complex, Parkin-mediated mitophagy pathway. Together, excitation spectral microscopy provides exceptional opportunities for highly multiplexed fluorescence imaging. The prospect of acquiring fast spectral images without the need for fluorescence dispersion or care for the spectral response of the detector offers tremendous potential.
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Affiliation(s)
- Kun Chen
- College of Chemistry, University of California, Berkeley, CA, USA
- Division of Molecular Biophysics and Integrated Bioimaging, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- Chan Zuckerberg Biohub, San Francisco, CA, USA
| | - Rui Yan
- College of Chemistry, University of California, Berkeley, CA, USA
- Division of Molecular Biophysics and Integrated Bioimaging, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- Chan Zuckerberg Biohub, San Francisco, CA, USA
| | - Limin Xiang
- College of Chemistry, University of California, Berkeley, CA, USA
- Division of Molecular Biophysics and Integrated Bioimaging, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- Chan Zuckerberg Biohub, San Francisco, CA, USA
| | - Ke Xu
- College of Chemistry, University of California, Berkeley, CA, USA.
- Division of Molecular Biophysics and Integrated Bioimaging, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
- Chan Zuckerberg Biohub, San Francisco, CA, USA.
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