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Liu X, Pu Q, Cheng Y, Wu J, Yan J, Wang Z, Wang X, Wang H, Qian Q. Comparative impact of pristine and aged microplastics with triclosan on lipid metabolism in larval zebrafish: Unveiling the regulatory role of miR-217. Sci Total Environ 2024; 929:172580. [PMID: 38657822 DOI: 10.1016/j.scitotenv.2024.172580] [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: 02/15/2024] [Revised: 04/10/2024] [Accepted: 04/17/2024] [Indexed: 04/26/2024]
Abstract
The prevalence of microplastics (MPs), especially aged particles, interacting with contaminants like triclosan (TCS), raises concerns about their toxicological effects on aquatic life. This study focused on the impact of aged polyamide (APA) MPs and TCS on zebrafish lipid metabolism. APA MPs, with rougher surfaces and lower hydrophobicity, exhibited reduced TCS adsorption than unaged polyamide (PA) MPs. Co-exposure to PA/APA MPs and TCS resulted in higher TCS accumulation in zebrafish larvae, notably more with PA than APA. Larvae exposed to PA + TCS exhibited greater oxidative stress, disrupted lipid metabolism, and altered insulin pathway genes than those exposed to TCS. However, these negative effects were lessened in the APA + TCS group. Through miRNA-seq and miR-217 microinjection, it was revealed that PA + TCS co-exposure upregulated miR-217, linked to lipid metabolic disorders in zebrafish. Moreover, molecular docking showed stable interactions formed between PA, TCS, and the insulin signaling protein Pik3r2. This study demonstrated that PA and TCS co-exposure significantly inhibited the insulin signaling in zebrafish, triggering lipid metabolism dysregulation mediated by miR-217 upregulation, while APA and TCS co-exposure alleviated these disruptions. This research underscored the ecological and toxicological risks of aged MPs and pollutants in aquatic environments, providing crucial insights into the wider implications of MPs pollution.
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Affiliation(s)
- Xingcheng Liu
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Qian Pu
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Ying Cheng
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Ji Wu
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Jin Yan
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Zejun Wang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Xuedong Wang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Huili Wang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China.
| | - Qiuhui Qian
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China.
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Wang X, Yang F, Sun Z, Zhao G, Pu Q, Geng C, Dong K, Zhang X, Liu Z, Song H. NKAIN1, as an oncogene, promotes the proliferation and metastasis of breast cancer, affecting its prognosis. Mol Carcinog 2024. [PMID: 38651944 DOI: 10.1002/mc.23732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 03/31/2024] [Accepted: 04/08/2024] [Indexed: 04/25/2024]
Abstract
Na, K-ATPase interaction (NKAIN) is a transmembrane protein family, which can interact with Na, K-ATPase β1 subunit. NKAIN1 plays an important role in alcohol-dependent diseases such as endometrial and prostate cancers. However, the relationship between NKAIN1 and human breast cancer has not been studied. Hence, this study aimed to explore the relationship between NKAIN1 expression and breast cancer. Data used in this study were mainly from the Cancer Genome Atlas, including differential expression analysis, Kaplan-Meier survival analysis, receiver operating characteristic curve analysis, multiple Cox regression analysis, co-expression gene analysis, and gene set enrichment analysis. Analyses were performed using reverse transcription-quantitative polymerase chain reaction, western blot analysis, and immunohistochemistry on 46 collected samples. The knockdown or overexpression of NKAIN1 in vitro in MCF-7 and MDA-MB-231 cell lines altered the proliferation and migration abilities of tumor cells. In vivo experiments further confirmed that NKAIN1 knockdown effectively inhibited the proliferation and migration of cancer cells. Therefore, our study identified NKAIN1 as an oncogene that is highly expressed in breast cancer tissues. The findings highlight the potential of NKAIN1 as a molecular biomarker of breast cancer.
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Affiliation(s)
- XiMei Wang
- Department of General Surgery, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
| | - FangZheng Yang
- Department of General Surgery, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
| | - Zhi Sun
- Department of General Surgery, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
- Department of Breast Disease(II), Shandong Second Provincial General Hospital, Jinan, China
| | - GuangHui Zhao
- Department of Medical Experimental Center, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
- Qingdao Key Lab of Mitochondrial Medicine, Qingdao, China
| | - Qian Pu
- Department of General Surgery, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
| | - ChenChen Geng
- Department of General Surgery, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
| | - Ke Dong
- Department of General Surgery, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
| | - XiaoDong Zhang
- Department of Medical Experimental Center, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
- Qingdao Key Lab of Mitochondrial Medicine, Qingdao, China
| | - ZiQian Liu
- Department of Medical Experimental Center, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
- Qingdao Key Lab of Mitochondrial Medicine, Qingdao, China
| | - HaiYun Song
- Department of Pathology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
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Qian Q, Pu Q, Li X, Liu X, Ni A, Han X, Wang Z, Wang X, Yan J, Wang H. Acute/chronic triclosan exposure induces downregulation of m 6A-RNA methylation modification via mettl3 suppression and elicits developmental and immune toxicity to zebrafish. Chemosphere 2024; 352:141395. [PMID: 38342143 DOI: 10.1016/j.chemosphere.2024.141395] [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: 12/10/2023] [Revised: 02/03/2024] [Accepted: 02/04/2024] [Indexed: 02/13/2024]
Abstract
Triclosan (TCS), a prevalent contaminant in aquatic ecosystems, has been identified as a potential threat to both aquatic biota and human health. Despite its widespread presence, research into the immunotoxic effects of TCS on aquatic organisms is limited, and the underlying mechanisms driving these effects remain largely unexplored. Herein, we investigated the developmental and immune toxicities of environmentally relevant concentrations of TCS in zebrafish, characterized by morphological anomalies, histopathological impairments, and fluctuations in cytological differentiation and biomarkers following both acute (from 6 to 72/120 hpf) and chronic exposure periods (from 30 to 100 dpf). Specifically, acute exposure to TCS resulted in a significant increase in innate immune cells, contrasted by a marked decrease in T cells. Furthermore, we observed that TCS exposure elicited oxidative stress and a reduction in global m6A levels, alongside abnormal expressions within the m6A modification enzyme system in zebrafish larvae. Molecular docking studies suggested that mettl3 might be a target molecule for TCS interaction. Intriguingly, the knock-down of mettl3 mirrored the effects of TCS exposure, adversely impacting the growth and development of zebrafish, as well as the differentiation of innate immune cells. These results provide insights into the molecular basis of TCS-induced immunotoxicity through m6A-RNA epigenetic modification and aid in assessing its ecological risks, informing strategies for disease prevention linked to environmental contaminants.
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Affiliation(s)
- Qiuhui Qian
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China; School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Qian Pu
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - Xin Li
- School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - XingCheng Liu
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - Anyu Ni
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - Xiaowen Han
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - Zejun Wang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - Xuedong Wang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - Jin Yan
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China.
| | - Huili Wang
- School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China.
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Wen D, Peng P, Yue X, Xu C, Pu Q, Ming Y, Yang H, Zhang M, Ren Y, Sun J. Comparative study of stretched-exponential and kurtosis models of diffusion-weighted imaging in renal assessment to distinguish patients with primary aldosteronism from healthy controls. PLoS One 2024; 19:e0298207. [PMID: 38330049 PMCID: PMC10852313 DOI: 10.1371/journal.pone.0298207] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 01/20/2024] [Indexed: 02/10/2024] Open
Abstract
PURPOSE To compare the ability of diffusion parameters obtained by stretched-exponential and kurtosis models of diffusion-weighted imaging (DWI) to distinguish between patients with primary aldosteronism (PA) and healthy controls (HCs) in renal assessment. MATERIALS AND METHODS A total of 44 participants (22 patients and 22 HCs) underwent renal MRI with an 11 b-value DWI sequence and a 3 b-value diffusion kurtosis imaging (DKI) sequence from June 2021 to April 2022. Binary logistic regression was used to construct regression models combining different diffusion parameters. Receiver-operating characteristic (ROC) curve analysis and comparisons were used to evaluate the ability of single diffusion parameters and combined diffusion models to distinguish between the two groups. RESULTS A total of six diffusion parameters (including the cortical anomalous exponent term [α_Cortex], medullary fractional anisotropy [FA_Medulla], cortical FA [FA_Cortex], cortical axial diffusivity [Da_Cortex], medullary mean diffusivity [MD_Medulla] and medullary radial diffusivity [Dr_Medulla]) were included, and 10 regression models were studied. The area under the curve (AUC) of Dr_Medulla was 0.855, comparable to that of FA_Cortex and FA_Medulla and significantly higher than that of α_Cortex, Da_Cortex and MD_Medulla. The AUC of the Model_all parameters was 0.967, comparable to that of Model_FA (0.946) and Model_DKI (0.966) and significantly higher than that of the other models. The sensitivity and specificity of Model_all parameters were 87.2% and 95%, respectively. CONCLUSION The Model_all parameters, Model_FA and Model_DKI were valid for differentiating between PA patients and HCs with similar differentiation efficacy and were superior to single diffusion parameters and other models.
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Affiliation(s)
- Deying Wen
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
| | - Pengfei Peng
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
| | - Xun Yue
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
- Department of Radiology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Chenxiao Xu
- Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, China
| | - Qian Pu
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
| | - Yue Ming
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
| | - Huiyi Yang
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
| | | | - Yan Ren
- Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, China
| | - Jiayu Sun
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
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Chen C, Song J, Pu Q, Liu X, Yan J, Wang X, Wang H, Qian Q. Azithromycin induces neurotoxicity in zebrafish by interfering with the VEGF/Notch signaling pathway. Sci Total Environ 2023; 903:166505. [PMID: 37625730 DOI: 10.1016/j.scitotenv.2023.166505] [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] [Received: 06/15/2023] [Revised: 08/08/2023] [Accepted: 08/21/2023] [Indexed: 08/27/2023]
Abstract
Azithromycin (AZM) is a widely used antibiotic in both human and veterinary medicine, and its use has significantly increased during the COVID-19 pandemic. However, potential adverse effects of AZM on aquatic organisms have not been well studied. In this study, we explored the neurotoxicity of AZM in zebrafish and delved into its underlying mechanisms. Our results showed that AZM exposure resulted in a spectrum of detrimental effects in zebrafish, encompassing abnormal behaviors, damaged neuronal development, aberrant lateral line nervous system development, vascular malformations and perturbed expression of genes related to neural development. Moreover, we observed a concentration-dependent exacerbation of these neurotoxic manifestations with increasing AZM concentrations. Notably, AZM induced excessive cell apoptosis and oxidative stress damage. In addition, alterations in the expression levels of the genes involved in the VEGF/Notch signaling pathway were evident in AZM-exposed zebrafish. Consequently, we hypothesize that AZM may induce neurotoxicity by influencing the VEGF/Notch signaling pathway. To validate this hypothesis, we introduced a VEGF signaling inhibitor, axitinib, and a Notch signaling agonist, valproic acid, alongside AZM exposure. Remarkably, the administration of these rescue compounds significantly mitigated the neurotoxic effects induced by AZM. This dual verification provides compelling evidence that AZM indeed induces neurotoxicity during the early developmental stages of zebrafish, primarily through its interference with the VEGF/Notch pathway. Innovatively, our study reveals the molecular mechanism of AZM-induced neurotoxicity from the perspective of the close connection between blood vessels and nervous system. These findings provide new insights into the potential mechanisms underlying the neurotoxic effect of antibiotics and highlight the need for further investigation into the ecotoxicological effects of antibiotics on aquatic organisms and the potential risks to human health.
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Affiliation(s)
- Chen Chen
- National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Jie Song
- National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Qian Pu
- National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Xingcheng Liu
- National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Jin Yan
- National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Xuedong Wang
- National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Huili Wang
- National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China.
| | - Qiuhui Qian
- National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China.
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Pu Q, Gao H. The Role of the Tumor Microenvironment in Triple-Positive Breast Cancer Progression and Therapeutic Resistance. Cancers (Basel) 2023; 15:5493. [PMID: 38001753 PMCID: PMC10670777 DOI: 10.3390/cancers15225493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/26/2023] [Accepted: 11/18/2023] [Indexed: 11/26/2023] Open
Abstract
Breast cancer (BRCA) is a highly heterogeneous systemic disease. It is ranked first globally in the incidence of new cancer cases and has emerged as the primary cause of cancer-related death among females. Among the distinct subtypes of BRCA, triple-positive breast cancer (TPBC) has been associated with increased metastasis and invasiveness, exhibiting greater resistance to endocrine therapy involving trastuzumab. It is now understood that invasion, metastasis, and treatment resistance associated with BRCA progression are not exclusively due to breast tumor cells but are from the intricate interplay between BRCA and its tumor microenvironment (TME). Accordingly, understanding the pathogenesis and evolution of the TPBC microenvironment demands a comprehensive approach. Moreover, addressing BRCA treatment necessitates a holistic consideration of the TME, bearing significant implications for identifying novel targets for anticancer interventions. This review expounds on the relationship between critical cellular components and factors in the TPBC microenvironment and the inception, advancement, and therapeutic resistance of breast cancer to provide perspectives on the latest research on TPBC.
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Affiliation(s)
- Qian Pu
- Department of Breast Surgery, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao 266035, China;
- Oncology Laboratory, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao 266035, China
| | - Haidong Gao
- Department of Breast Surgery, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao 266035, China;
- Oncology Laboratory, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao 266035, China
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Dong K, Geng C, Zhan X, Sun Z, Pu Q, Li P, Song H, Zhao G, Gao H. GREB1L overexpression is associated with good clinical outcomes in breast cancer. Eur J Med Res 2023; 28:510. [PMID: 37964281 PMCID: PMC10644546 DOI: 10.1186/s40001-023-01483-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 10/30/2023] [Indexed: 11/16/2023] Open
Abstract
BACKGROUND Breast cancer is the most common malignant tumor among women worldwide. GREB1L is a protein-coding gene. Previous studies have shown that GREB1L plays a vital role in lung and gastric adenocarcinoma. Currently, there is no relevant report about its role in breast cancer. METHODS The Cancer Genome Atlas database was used to compare the expression level of GREB1L between tumor and normal tissues. The TISIDB website was used for prognosis analysis. The LinkedOmics database was used to predict the potential biological mechanism of GREB1L in breast cancer. Immunohistochemistry was used to detect the GREB1L expression level in breast tissue. Western blotting was used to detect the GREB1L expression level in cell lines. Transwell assays, CCK-8 cell proliferation assays, and colony formation assays were used to detect the migration, invasion, proliferation, and colony formation abilities of cells. Subcutaneous xenograft models were used to detect the in vivo tumor formation abilities of cells. RESULTS GREB1L is highly expressed in breast cancer tissues and breast cancer cells. KEGG enrichment analysis suggested that GREB1L participates in the regulation of the Hedgehog signaling pathway; changes in GREB1L expression affected the migration and invasion abilities of MCF7 and MDA-MB-231 cells. Although changes in GREB1L expression did not affect their proliferation and colony formation abilities in vitro and in vivo, they affected the expression of tumor metastasis-related genes in vivo. The overexpression of GREB1L in breast cancer predicted a favorable prognosis. CONCLUSION These results showed that GREB1L is involved in the development of breast cancer, and it may be a potential molecular marker for predicting the prognosis of breast cancer.
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Affiliation(s)
- Ke Dong
- Department of Breast Surgery, Qilu Hospital of Shandong University (Qingdao), No. 758 Hefei Road, Qingdao, 266000, Shandong, China
| | - Chenchen Geng
- Department of Ultrasound, Qilu Hospital of Shandong University (Qingdao), No. 758 Hefei Road, Qingdao, 266000, Shandong, China
| | - Xiaohong Zhan
- Department of Pathology, The Affiliated Hospital of Qingdao University, No. 58 Haier Road, Qingdao, 266000, Shandong, China
| | - Zhi Sun
- Department of Breast Diseases, Shandong Second Provincial General Hospital, No. 4 Duanxing West Road, Jinan, 250000, Shandong, China
| | - Qian Pu
- Department of Breast Surgery, Qilu Hospital of Shandong University (Qingdao), No. 758 Hefei Road, Qingdao, 266000, Shandong, China
| | - Peng Li
- Department of Breast Surgery, Qilu Hospital of Shandong University (Qingdao), No. 758 Hefei Road, Qingdao, 266000, Shandong, China
| | - Haiyun Song
- Department of Pathology, Qilu Hospital of Shandong University (Qingdao), No. 758 Hefei Road, Qingdao, 266000, Shandong, China
| | - Guanghui Zhao
- Women and Children's Hospital, Peking University People's Hospital (Qingdao), No. 7, Jinsheng 1St Road, Qingdao, 266111, Shandong, China.
- Medical Laboratory Center, Qilu Hospital of Shandong University (Qingdao), No. 758 Hefei Road, Qingdao, 266000, Shandong, China.
| | - Haidong Gao
- Department of Breast Surgery, Qilu Hospital of Shandong University (Qingdao), No. 758 Hefei Road, Qingdao, 266000, Shandong, China.
- Oncology Laboratory, Qilu Hospital of Shandong University (Qingdao), No. 758 Hefei Road, Qingdao, 266000, Shandong, China.
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Wu X, Deng L, Li W, Peng P, Yue X, Tang L, Pu Q, Ming Y, Zhang X, Huang X, Chen Y, Huang J, Sun J. Deep Learning-Based Acceleration of Compressed Sensing for Noncontrast-Enhanced Coronary Magnetic Resonance Angiography in Patients With Suspected Coronary Artery Disease. J Magn Reson Imaging 2023; 58:1521-1530. [PMID: 36847756 DOI: 10.1002/jmri.28653] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 02/06/2023] [Accepted: 02/06/2023] [Indexed: 03/01/2023] Open
Abstract
BACKGROUND The clinical application of coronary MR angiography (MRA) remains limited due to its long acquisition time and often unsatisfactory image quality. A compressed sensing artificial intelligence (CSAI) framework was recently introduced to overcome these limitations, but its feasibility in coronary MRA is unknown. PURPOSE To evaluate the diagnostic performance of noncontrast-enhanced coronary MRA with CSAI in patients with suspected coronary artery disease (CAD). STUDY TYPE Prospective observational study. POPULATION A total of 64 consecutive patients (mean age ± standard deviation [SD]: 59 ± 10 years, 48.4% females) with suspected CAD. FIELD STRENGTH/SEQUENCE A 3.0-T, balanced steady-state free precession sequence. ASSESSMENT Three observers evaluated the image quality for 15 coronary segments of the right and left coronary arteries using a 5-point scoring system (1 = not visible; 5 = excellent). Image scores ≥3 were considered diagnostic. Furthermore, the detection of CAD with ≥50% stenosis was evaluated in comparison to reference standard coronary computed tomography angiography (CTA). Mean acquisition times for CSAI-based coronary MRA were measured. STATISTICAL TESTS For each patient, vessel and segment, sensitivity, specificity, and diagnostic accuracy of CSAI-based coronary MRA for detecting CAD with ≥50% stenosis according to coronary CTA were calculated. Intraclass correlation coefficients (ICCs) were used to assess the interobserver agreement. RESULTS The mean MR acquisition time ± SD was 8.1 ± 2.4 minutes. Twenty-five (39.1%) patients had CAD with ≥50% stenosis on coronary CTA and 29 (45.3%) patients on MRA. A total of 885 segments on the CTA images and 818/885 (92.4%) coronary MRA segments were diagnostic (image score ≥3). The sensitivity, specificity, and diagnostic accuracy were as follows: per patient (92.0%, 84.6%, and 87.5%), per vessel (82.9%, 93.4%, and 91.1%), and per segment (77.6%, 98.2%, and 96.6%), respectively. The ICCs for image quality and stenosis assessment were 0.76-0.99 and 0.66-1.00, respectively. DATA CONCLUSION The image quality and diagnostic performance of coronary MRA with CSAI may show good results in comparison to coronary CTA in patients with suspected CAD. EVIDENCE LEVEL 1. TECHNICAL EFFICACY 2.
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Affiliation(s)
- Xi Wu
- Department of Radiology, West China Hospital of Sichuan University, Chengdu, Sichuan, China
- Department of Radiology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Liping Deng
- Department of Radiology, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Wanjiang Li
- Department of Radiology, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Pengfei Peng
- Department of Radiology, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Xun Yue
- Department of Radiology, West China Hospital of Sichuan University, Chengdu, Sichuan, China
- Department of Radiology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Lu Tang
- Department of Radiology, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Qian Pu
- Department of Radiology, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Yue Ming
- Department of Radiology, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Xiaoyong Zhang
- Clinical Science, Philips Healthcare, Chengdu, Sichuan, China
| | - Xiaohua Huang
- Department of Radiology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Yucheng Chen
- Department of Cardiology, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Juan Huang
- Department of Radiology, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Jiayu Sun
- Department of Radiology, West China Hospital of Sichuan University, Chengdu, Sichuan, China
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9
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Luo Y, Liu D, Wang Y, Zhang F, Xu Y, Pu Q, Zhao L, Wei T, Fan T, Lou Y, Liu S. Combined analysis of the proteome and metabolome provides insight into microRNA-1174 function in Aedes aegypti mosquitoes. Parasit Vectors 2023; 16:271. [PMID: 37559132 PMCID: PMC10413549 DOI: 10.1186/s13071-023-05859-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 06/30/2023] [Indexed: 08/11/2023] Open
Abstract
BACKGROUND Pathogenic viruses can be transmitted by female Aedes aegypti (Ae. aegypti) mosquitoes during blood-meal acquisition from vertebrates. Silencing of mosquito- and midgut-specific microRNA (miRNA) 1174 (miR-1174) impairs blood intake and increases mortality. Determining the identity of the proteins and metabolites that respond to miR-1174 depletion will increase our understanding of the molecular mechanisms of this miRNA in controlling blood-feeding and nutrient metabolism of mosquitoes. METHODS Antisense oligonucleotides (antagomirs [Ant]) Ant-1174 and Ant-Ct were injected into female Ae. aegypti mosquitoes at 12-20 h posteclosion, and depletion of miR-1174 was confirmed by reverse transcription quantitative real-time PCR (RT-qPCR). Ant-1174-injected and control mosquitoes were collected before the blood meal at 72 h post-injection for tandem mass tag-based proteomic analysis and liquid chromatography-tandom mass spectrometry non-target metabolomic analysis to identify differentially expressed proteins and metabolites, respectively. RNA interference (RNAi) using double-stranded RNA (dsRNA) injection was applied to investigate the biological roles of these differentially expressed genes. The RNAi effect was verified by RT-qPCR and western blotting assays. Triglyceride content and ATP levels were measured using the appropriate assay kits, following the manufacturers' instructions. Statistical analyses were conducted with GraphPad7 software using the Student's t-test. RESULTS Upon depletion of mosquito- and midgut-specific miR-1174, a total of 383 differentially expressed proteins (DEPs) were identified, among which 258 were upregulated and 125 were downregulated. Functional analysis of these DEPs using Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment suggested that miR-1174 plays important regulatory roles in amino acid metabolism, nucleotide metabolism, fatty acid metabolism and sugar metabolism pathways. A total of 292 differential metabolites were identified, of which 141 were upregulated and 151 were downregulated. Integrative analysis showed that the associated differential proteins and metabolites were mainly enriched in a variety of metabolic pathways, including glycolysis, citrate cycle, oxidative phosphorylation and amino acid metabolism. Specifically, the gene of one upregulated protein in miR-1174-depleted mosquitoes, purine nucleoside phosphorylase (PNP; AAEL002269), was associated with the purine, pyrimidine and niacin-nicotinamide metabolism pathways. PNP knockdown seriously inhibited blood digestion and ovary development and increased adult mortality. Mechanically, PNP depletion led to a significant downregulation of the vitellogenin gene (Vg); in addition, some important genes in the ecdysone signaling and insulin-like peptide signaling pathways related to ovary development were affected. CONCLUSIONS This study demonstrates differential accumulation of proteins and metabolites in miR-1174-depleted Ae. aegypti mosquitoes using proteomic and metabolomic techniques. The results provide functional evidence for the role of the upregulated gene PNP in gut physiological activities. Our findings highlight key molecular changes in miR-1174-depleted Ae. aegypti mosquitoes and thus provide a basis and novel insights for increased understanding of the molecular mechanism involved in a lineage-specific miRNA in mosquito vectors.
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Affiliation(s)
- Yangrui Luo
- State Key Laboratory of Resource Insects, Southwest University, Beibei, Chongqing, 400716, People's Republic of China
| | - Dun Liu
- College of Marine Life Science, Ocean University of China, Qingdao, 266003, Shandong, People's Republic of China
| | - Yuanmei Wang
- State Key Laboratory of Resource Insects, Southwest University, Beibei, Chongqing, 400716, People's Republic of China
| | - Fan Zhang
- State Key Laboratory of Resource Insects, Southwest University, Beibei, Chongqing, 400716, People's Republic of China
| | - Yankun Xu
- State Key Laboratory of Resource Insects, Southwest University, Beibei, Chongqing, 400716, People's Republic of China
| | - Qian Pu
- State Key Laboratory of Resource Insects, Southwest University, Beibei, Chongqing, 400716, People's Republic of China
| | - Lu Zhao
- State Key Laboratory of Resource Insects, Southwest University, Beibei, Chongqing, 400716, People's Republic of China
| | - Tianqi Wei
- State Key Laboratory of Resource Insects, Southwest University, Beibei, Chongqing, 400716, People's Republic of China
| | - Ting Fan
- State Key Laboratory of Resource Insects, Southwest University, Beibei, Chongqing, 400716, People's Republic of China
| | - Yuqi Lou
- State Key Laboratory of Resource Insects, Southwest University, Beibei, Chongqing, 400716, People's Republic of China
| | - Shiping Liu
- State Key Laboratory of Resource Insects, Southwest University, Beibei, Chongqing, 400716, People's Republic of China.
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10
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Jin J, Lei Y, Pu Q, Yu L. [Clinical and genetic analysis of a patient with Craniofrontonasal syndrome]. Zhonghua Yi Xue Yi Chuan Xue Za Zhi 2023; 40:706-710. [PMID: 37212007 DOI: 10.3760/cma.j.cn511374-20220830-00587] [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: 05/23/2023]
Abstract
OBJECTIVE To explore the clinical feature and genetic etiology of a patient with Craniofacial nasal syndrome (CNFS). METHODS A patient with CNFS who had presented at the Guiyang Maternal and Child Health Care Hospital on November 13, 2021 was selected as the study subject. Clinical data of the patient were collected. Peripheral venous blood samples were collected from the patient and her parents and subjected to trio-whole exome sequencing (trio-WES). Candidate variants were verified by Sanger sequencing and bioinformatic analysis. RESULTS The patient, a 15-year-old female, had predominantly featured forehead bulging, hypertelorism, wide nasal dorsum and bifid nasal tip. Genetic testing revealed that she has harbored a heterozygous missense c.473T>C (p.M158T) variant of the EFNB1 gene, which was detected in either of her parents. By bioinformatic analysis, the variant has not been recorded in the HGMD and ClinVar databases, and no population frequency was recorded in the 1000 Genomes, ExAC, gnomAD and Shenzhou Genome Data Cloud databases. As predicted by the REVEL online software, the variant can confer deleterious effects on the gene or its product. Analysis using UGENE software showed the corresponding amino acid to be highly conserved among various species. Analysis with AlphaFold2 software suggested that the variant may affect the 3D structure and function of the Ephrin-B1 protein. Based on the American College of Medical Genetics and Genomics (ACMG) standards and guidelines and recommendation of Clinical Genome Resource (ClinGen), the variant was rated as pathogenic. CONCLUSION Combining the patient's clinical features and genetic finding, the diagnosis of CNFS was confirmed. The heterozygous c.473T>C (p.M158T) missense variant of the EFNB1 gene probably underlay the disease in this patient. Above finding has provided a basis for the genetic counseling and prenatal diagnosis for her family.
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Affiliation(s)
- Juan Jin
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou 550001, China.
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11
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Qian Q, Song J, Pu Q, Chen C, Yan J, Wang H. Acute/chronic exposure to bisphenol A induced immunotoxicity in zebrafish and its potential association with pancreatic cancer risk. Aquat Toxicol 2023; 258:106514. [PMID: 37019016 DOI: 10.1016/j.aquatox.2023.106514] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 03/27/2023] [Accepted: 03/29/2023] [Indexed: 06/19/2023]
Abstract
Previous studies have confirmed that bisphenol A (BPA) induced immune toxicity and affected diseases, however, the underlying mechanism remains unknown. In the present study, zebrafish was employed as the model to assess the immunotoxicity and the potential disease risk of BPA exposure. Upon BPA exposure, a series of abnormalities were found, which included the increased oxidative stress, damaged innate and adaptive immune functions and the elevated insulin and blood glucose levels. According to the target prediction and RNA sequencing data of BPA, the differential expression genes were found enriched in immune- and pancreatic cancer-related pathway and process, and the potential role of stat3 in the regulation of these processes was revealed. The key immune- and pancreatic cancer-related genes were selected for further confirmation by RT-qPCR. Based on the changes in the expression levels of these genes, our hypothesis that BPA induced the occurrence of pancreatic cancer by modulating immune responses was further evidenced. Deeper mechanism was further disclosed by molecular dock simulation and survival analysis of key genes, proving that BPA stably bound to STAT3 and IL10 and STAT3 may serve as the target of BPA-inducing pancreatic cancer. These results are of great significance in deepening the molecular mechanism of immunotoxicity induced by BPA and our understanding of the risk assessment of contaminants.
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Affiliation(s)
- Qiuhui Qian
- National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, PR. China
| | - Jie Song
- National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, PR. China
| | - Qian Pu
- National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, PR. China
| | - Chen Chen
- National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, PR. China
| | - Jin Yan
- National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, PR. China
| | - Huili Wang
- National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, PR. China.
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12
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Wu H, Li J, Pu Q, Mi C, Zeng G, Chen Y, Kong D, Zuo X, Hu X, Li O. Physiological and transcriptome analysis of Dendrobium officinale under low nitrogen stress. Funct Plant Biol 2023; 50:314-334. [PMID: 36872310 DOI: 10.1071/fp22061] [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] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 02/06/2023] [Indexed: 06/18/2023]
Abstract
Nitrogen (N) is the main nutrient of plants, and low nitrogen usually affects plant growth and crop yield. The traditional Chinese herbal medicine Dendrobium officinale Kimura et. Migo is a typical low nitrogen-tolerant plant, and its mechanism in response to low nitrogen stress has not previously been reported. In this study, physiological measurements and RNA-Seq analysis were used to analyse the physiological changes and molecular responses of D. officinale under different nitrogen concentrations. The results showed that under low nitrogen levels, the growth, photosynthesis and superoxide dismutase activity were found to be significantly inhibited, while the activities of peroxidase and catalase, the content of polysaccharides and flavonoids significantly increased. Differentially expressed genes (DEGs) analysis showed that nitrogen and carbon metabolisms, transcriptional regulation, antioxidative stress, secondary metabolite synthesis and signal transduction all made a big difference in low nitrogen stress. Therefore, copious polysaccharide accumulation, efficient assimilation and recycling of nitrogen, as well as rich antioxidant components play critical roles. This study is helpful for understanding the response mechanism of D. officinale to low nitrogen levels, which might provide good guidance for practical production of high quality D. officinale .
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Affiliation(s)
- Hangtao Wu
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Science, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Jin Li
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Science, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Qian Pu
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Science, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Chunyi Mi
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Science, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Guohong Zeng
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Science, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Ying Chen
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Science, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Dedong Kong
- Institute of Digital Agriculture, Zhejiang Academy of Agricultural Sciences, Hangzhou 310018, P. R. China
| | - Xiaorong Zuo
- Xi'an Ande Pharmaceutical Co., Ltd, Zhenping Branch, Xi'an 710000, P. R. China
| | - Xiufang Hu
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Science, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Ou Li
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Science, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
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13
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Li J, Wu H, Pu Q, Zhang C, Chen Y, Lin Z, Hu X, Li O. Complete genome of Sphingomonas paucimobilis ZJSH1, an endophytic bacterium from Dendrobium officinale with stress resistance and growth promotion potential. Arch Microbiol 2023; 205:132. [PMID: 36959350 DOI: 10.1007/s00203-023-03459-2] [Citation(s) in RCA: 4] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 02/28/2023] [Accepted: 03/01/2023] [Indexed: 03/25/2023]
Abstract
Sphingomonas paucimobilis ZJSH1 is an endophytic bacterium isolated from the roots of Dendrobium officinale with the ability to promote plant growth. It was found that the genome of strain ZJSH1 had gene fragment rearrangement compared with the genomes of the other four strains of S. paucimobilis, and the genome was integrated with phage genes. Functional analysis showed that the strain contained colonization-related genes, chemotaxis and invasion. A variety of genes encoding active materials, such as hormones (IAA, SA, ABA and zeaxanthin), phosphate cycle, antioxidant enzymes, and polysaccharides were identified which provide the strain with growth promotion and stress-resistant characteristics. Experiments proved that S. paucimobilis ZJSH1 grew well in media containing 80 g/L sodium chloride, 240 g/L polyethylene glycol and 800 μmol/L Cd2+, indicating its potential for resistance to stresses of salt, drought and cadmium, respectively. S. paucimobilis ZJSH1 is the only endophytic bacterium of this species that has been reported to promote plant growth. The analysis of its genome is conducive to understanding its growth-promoting mechanism and laying a foundation for the development and utilization of this species in the field of agriculture.
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Affiliation(s)
- Jin Li
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, 928th Second Avenue, Hangzhou, 310018, People's Republic of China
| | - Hangtao Wu
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, 928th Second Avenue, Hangzhou, 310018, People's Republic of China
| | - Qian Pu
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, 928th Second Avenue, Hangzhou, 310018, People's Republic of China
| | - Chu Zhang
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, 928th Second Avenue, Hangzhou, 310018, People's Republic of China
| | - Ying Chen
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, 928th Second Avenue, Hangzhou, 310018, People's Republic of China
| | - Zhengxin Lin
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, 928th Second Avenue, Hangzhou, 310018, People's Republic of China
| | - Xiufang Hu
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, 928th Second Avenue, Hangzhou, 310018, People's Republic of China.
| | - Ou Li
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, 928th Second Avenue, Hangzhou, 310018, People's Republic of China.
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Abstract
Malignant tumors remain a high-risk disease with high mortality all over the world. Among all the cancer treatments, surgery is the primary approach in the clinical treatment of tumors. However, tumor invasion and metastasis pose challenges for complete tumor resection, accompanied by high recurrence rates and reduced quality of life. Hence, there is an urgent need to explore effective adjuvant therapies to prevent postoperative tumor recurrence and relieve the pain of the patients. Nowadays, the booming local drug delivery systems which can be applied as postoperative adjuvant therapies have aroused people's attention, along with the rapid development in the pharmaceutical and biological materials fields. Hydrogels are a kind of unique carrier with prominent biocompatibility among a variety of biomaterials. Due to their high similarity to human tissues, hydrogels which load drugs/growth factors can prevent rejection reactions and promote wound healing. In addition, hydrogels are able to cover the postoperative site and maintain sustained drug release for the prevention of tumor recurrence. In this review, we survey controlled drug delivery hydrogels such as implantable, injectable and sprayable formulations and summarize the properties required for hydrogels used as postoperative adjuvant therapies. The opportunities and challenges in the design and clinical application of these hydrogels are also elaborated.
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Affiliation(s)
- Qiuhui Qian
- National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China.
| | - Jie Song
- National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China.
| | - Chen Chen
- National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China.
| | - Qian Pu
- National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China.
| | - Xingcheng Liu
- National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China.
| | - Huili Wang
- National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China.
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He Y, Wang S, Deng J, Pu Q, Chen H, Huang L. Chlamydia psittaci Pneumonia Complicated with Lower Extremity Atherosclerotic Occlusive Disease. Infect Drug Resist 2023; 16:2141-2145. [PMID: 37077253 PMCID: PMC10106326 DOI: 10.2147/idr.s393256] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 03/29/2023] [Indexed: 04/21/2023] Open
Abstract
Chlamydia is a zoonotic pathogen that mainly infects poultry and pet birds. This Gram-negative obligate intracellular parasite also causes human psittacosis, the severity of which varies from mild flu-like symptoms to life-threatening severe pneumonia, including sepsis, acute respiratory distress syndrome, and multiple organ failure. Inhalation of aerosols from contaminated bird excreta through the respiratory tract is the main route of transmission to humans. Here, we present a case of Chlamydia psittaci pneumonia accompanied by lower extremity atherosclerotic occlusive disease. A 48-year-old man was admitted to the emergency department with a four-day history of cough and dyspnea. A detailed history revealed his contact with domestic pigeons. The results of metagenomic next-generation sequencing of bronchoalveolar lavage fluid suggested C. psittaci infection. Antibacterial agents were switched to targeted doxycycline, but in the next week, skin examination revealed acrocyanosis of both lower extremities, and the remarkable palpable purpura progressively worsened. Re-examination of the lower extremity vascular ultrasound suggested left dorsalis pedis artery occlusion and right peroneal vein thrombosis, which resulted in the amputation of both legs. This case is the first report of C. psittaci pneumonia combined with arterioocclusive sclerosis of both lower extremities.
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Affiliation(s)
- YongHong He
- Department of Respiratory Medicine and Critical Care Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou City, Sichuan Province, 646000, People’s Republic of China
| | - SongPing Wang
- Department of Respiratory Medicine and Critical Care Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou City, Sichuan Province, 646000, People’s Republic of China
- Correspondence: SongPing Wang, Department of Respiratory Medicine and Critical Care Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou City, Sichuan Province, 646000, People’s Republic of China, Email
| | - Jun Deng
- Department of Respiratory Medicine and Critical Care Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou City, Sichuan Province, 646000, People’s Republic of China
| | - Qian Pu
- Department of Intensive Care Medicine, Chengdu Second People’s Hospital, ChengDu City, Sichuan Province, 610000, People’s Republic of China
| | - Hong Chen
- Department of Respiratory Medicine, Chengdu Second People’s Hospital, ChengDu City, Sichuan Province, 610000, People’s Republic of China
| | - Lan Huang
- Department of Respiratory Medicine, Chengdu Second People’s Hospital, ChengDu City, Sichuan Province, 610000, People’s Republic of China
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Chen G, Li H, Liang G, Pu Q, Bai L, Zhang D, Ye Y, Li Y, Zhou J, Zhou H. Facile construction of dibenzodioxo[3.3.1]nonanes bearing spirocyclohexadienones via domino [4 + 2] cycloaddition/C(sp 3)-H oxidative dehydrogenation coupling reactions. Org Biomol Chem 2022; 20:9392-9396. [PMID: 36398442 DOI: 10.1039/d2ob01860h] [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: 11/16/2022]
Abstract
A novel palladium catalyzed homodimerization of ortho-hydroxyphenyl substituted p-QMs has been developed via [4 + 2] cycloaddition/oxidative dehydrogenation coupling domino reactions. An interesting palladium catalyzed intramolecular benzyl C-H oxidation dehydrogenation to form a transannular C(sp3)-O bond was found. This protocol provided an efficient method to construct various dibenzodioxo[3.3.1]nonanes bearing spirocyclohexadienones.
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Affiliation(s)
- Genhui Chen
- Chongqing Research Center for Pharmaceutical Engineering, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Hongjiao Li
- Chongqing Research Center for Pharmaceutical Engineering, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Guojuan Liang
- Chongqing Research Center for Pharmaceutical Engineering, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Qian Pu
- Chongqing Research Center for Pharmaceutical Engineering, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Lijuan Bai
- Chongqing Research Center for Pharmaceutical Engineering, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Dexin Zhang
- Chongqing Research Center for Pharmaceutical Engineering, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Ying Ye
- Chongqing Research Center for Pharmaceutical Engineering, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Yong Li
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, IATTI, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Jing Zhou
- Chongqing Research Center for Pharmaceutical Engineering, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Hui Zhou
- Chongqing Research Center for Pharmaceutical Engineering, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
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Pu Q, Wang K, Peng B, Chen K, Gong T, Liu F, Yang Q. In situ Preparation of a Phospholipid Gel Co-Loaded with Methotrexate and Dexamethasone for Synergistic Rheumatoid Arthritis Treatment. Int J Nanomedicine 2022; 17:5153-5162. [DOI: 10.2147/ijn.s384772] [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] [Received: 08/02/2022] [Accepted: 10/25/2022] [Indexed: 11/06/2022] Open
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18
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Zhang C, Pu Q, Ying JJ, Chen Y, Li CZ, Wu HT, Wang BJ, Zhang YH, Zeng GH, Li O, Hu XF, Sun C. Paracandidimonas lactea sp. nov., a urea-utilizing bacterium isolated from landfill. Arch Microbiol 2022; 204:633. [PMID: 36123413 DOI: 10.1007/s00203-022-03190-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 08/11/2022] [Accepted: 08/12/2022] [Indexed: 11/30/2022]
Abstract
A urea-utilizing bacterium, designated Q2-2 T, was isolated from landfill. Cells of strain Q2-2 T were Gram stain-negative, aerobic, short-rod bacteria. Strain Q2-2 T was observed to grow at a temperature range of 15-37℃ (optimum 30 ℃), a pH range of 5.5-9.5 (optimum pH 8.0) and 0-4% (w/v) NaCl (optimum 1%). The major respiratory quinone was Q-8, and the major polar lipids were diphosphatidyl glycerol, phosphatidylethanolamine, phosphatidylmethylethanolamine, and phosphatidyl glycerol. Based on the 16S rRNA gene sequence, strain Q2-2 T had the highest similarity with Paracandidimonas caeni 24 T (98.0%), followed by Pusillimonas soli MJ07T (97.5%), Parapusillimonas granuli Ch07T (97.2%), Pusillimonas ginsengisoli DCY25T (97.1%) and Paracandidimonas soli IMT-305 T (96.4%). The ANI values between strain Q2-2 T and the above related type strains were 71.02%, 73.52%, 74.32%, 74.59% and 72.29%, respectively. The DNA G + C content of strain Q2-2 T was 61.1%. Therefore, strain Q2-2 T represents a novel species of the genus Paracandidimonas, for which the name Paracandidimonas lactea sp. nov. (type strain Q2-2 T = CGMCC 1.19179 T = JCM 34906 T) is proposed.
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Affiliation(s)
- Chu Zhang
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, 928th Second Avenue, Hangzhou, 310018, People's Republic of China
| | - Qian Pu
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, 928th Second Avenue, Hangzhou, 310018, People's Republic of China
| | - Jun-Jie Ying
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, 928th Second Avenue, Hangzhou, 310018, People's Republic of China
| | - Ying Chen
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, 928th Second Avenue, Hangzhou, 310018, People's Republic of China
| | - Cheng-Ze Li
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, 928th Second Avenue, Hangzhou, 310018, People's Republic of China
| | - Hang-Tao Wu
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, 928th Second Avenue, Hangzhou, 310018, People's Republic of China
| | - Bin-Jie Wang
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, 928th Second Avenue, Hangzhou, 310018, People's Republic of China
| | - Yu-Han Zhang
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, 928th Second Avenue, Hangzhou, 310018, People's Republic of China
| | - Guo-Hong Zeng
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, 928th Second Avenue, Hangzhou, 310018, People's Republic of China
| | - Ou Li
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, 928th Second Avenue, Hangzhou, 310018, People's Republic of China
| | - Xiu-Fang Hu
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, 928th Second Avenue, Hangzhou, 310018, People's Republic of China.
| | - Cong Sun
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, 928th Second Avenue, Hangzhou, 310018, People's Republic of China.
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Pu Q, Huo M, Liang G, Bai L, Chen G, Li H, Xiang P, Zhou H, Zhou J. Divergent oxidative dearomatization coupling reactions to construct polycyclic cyclohexadienones. Chem Commun (Camb) 2022; 58:4348-4351. [PMID: 35293906 DOI: 10.1039/d2cc00183g] [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: 11/21/2022]
Abstract
Highly selective divergent oxidative dearomatization coupling reactions, in which the chemoselectivity is controlled by catalysts and bases, are reported herein. Three different kinds of polycyclic cyclohexadienones are produced from the same reactants (41 examples, 85-99% yield). Our method marks a novel copper- and palladium-catalyzed C-H oxidative dearomatization of phenolic derivatives.
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Affiliation(s)
- Qian Pu
- Chongqing Research Center for Pharmaceutical Engineering, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Mingming Huo
- Chongqing Research Center for Pharmaceutical Engineering, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Guojuan Liang
- Chongqing Research Center for Pharmaceutical Engineering, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Lijuan Bai
- Chongqing Research Center for Pharmaceutical Engineering, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Genhui Chen
- Chongqing Research Center for Pharmaceutical Engineering, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Hongjiao Li
- Chongqing Research Center for Pharmaceutical Engineering, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Peng Xiang
- Chongqing Research Center for Pharmaceutical Engineering, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Hui Zhou
- Chongqing Research Center for Pharmaceutical Engineering, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Jing Zhou
- Chongqing Research Center for Pharmaceutical Engineering, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
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Yan Z, Hu Y, Zhang Y, Pu Q, Chu L, Liu J. Effects of endoplasmic reticulum stress‑mediated CREB3L1 on apoptosis of glioma cells. Mol Clin Oncol 2022; 16:83. [DOI: 10.3892/mco.2022.2516] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 01/24/2022] [Indexed: 11/06/2022] Open
Affiliation(s)
- Zhao Yan
- Department of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Yaxin Hu
- Department of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Yiwei Zhang
- Department of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Qian Pu
- Department of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Liangzhao Chu
- Department of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Jian Liu
- Department of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
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21
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Li KD, Xu YY, Guo CL, Pu Q, Mei JD, Liu CW, Zhu YK, Liu LX. [Emulation pulmonary nodules localization model:a novel non-invasive localization technique in resection of pulmonary nodules]. Zhonghua Yi Xue Za Zhi 2021; 101:3966-3972. [PMID: 34955000 DOI: 10.3760/cma.j.cn112137-20211020-02321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Objective: To explore the accuracy and efficiency of a novel 3D-printed emulation localization model of small pulmonary nodules in lung surgery. Methods: From April 2020 to April 2021, a total of 66 patients were selected in the study, who underwent localization and resection of pulmonary nodules with video-assisted thoracoscopic surgery (VATS) guided by the 3D-printed emulation localization model at Department of Thoracic Surgery, West China Hospital of Sichuan University. There were 13 males and 53 females, aged from 25 to 79 (52.7±11.4) years. Of all patients, 24 (36.4%) had single pulmonary nodule, and 42 (63.6%) had synchronous multiple pulmonary nodules. The chest high-resolution CT image data were utilized for digital reconstruction and 3D printing to make a tailored life-size emulation pulmonary nodules localization model, which was used to navigate real-time intraoperative localization of nodules. Clinical data including operative parameters, localization information, resection types and pathological findings of nodules were analyzed. The pulmonary nodules that doctors planned to resect were categorized into two categories:major nodules and additional nodules, according to their presence of invasion and radiological risk factors. The accuracy of localization and resection efficiency of nodules were evaluated in accordance with the categories of the nodules respectively. Results: On the basis of preoperative evaluation, there were 71 major nodules with median maximal diameter of 0.9 (0.6-1.3) cm, and 77 additional nodules with median maximal diameter of 0.5 (0.4-0.7) cm. All patients underwent VATS surgery, 52 of them (78.8%) were treated with uniportal VATS and 14 (21.2%) with triportal VATS. Among the patients with single nodule, 18 segmentectomies and 6 wedge resections were performed; whereas among the patients with multiple nodules, 5 segmentectomies, 14 wedge resections, and 23 combined pulmonary resections (including 2 cases of lobectomy+segmentectomy, 7 cases of lobectomy+wedge resections, and 14 cases of segmentectomy+wedge resections) were achieved. The median operative time was 93 (45-240) min, and the median resection time for all nodules was 51.4 (6.7-147.0) min. All major nodules were successfully resected and visibly dissected after removal, and all additional nodules were successfully resected with 85.7%(66/77) nodules visibly dissected. The accuracy rate of localization of both types of nodules was 100%. All major nodules were malignant, and the malignancy rate of additional nodules was 21.2%(14/66). Conclusion: This novel 3D-printed emulation localization model of small pulmonary nodules proved to be a non-invasive, accurate and efficient technique. Not only that, it has a unique advantage in localization of synchronous multiple pulmonary nodules.
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Affiliation(s)
- K D Li
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Y Y Xu
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - C L Guo
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Q Pu
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - J D Mei
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - C W Liu
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Y K Zhu
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - L X Liu
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
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22
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Zhao G, An J, Pu Q, Geng W, Song H, Zhao Q, Gao H. Gene Signatures and Cancer-Immune Phenotypes Based on m 6A Regulators in Breast Cancer. Front Oncol 2021; 11:756412. [PMID: 34804948 PMCID: PMC8600443 DOI: 10.3389/fonc.2021.756412] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 10/01/2021] [Indexed: 01/04/2023] Open
Abstract
The N6-methyladenosine (m6A) has been considered as a new layer of epitranscriptomic regulation on mRNA processing, stability, and translation. However, potential roles of m6A RNA methylation modification in tumor immune microenvironment (TIME) of breast cancer are yet fully understood. In this study, we comprehensively evaluated the genetic variations and transcript expressions of 15 m6A regulators in 1,079 breast cancer samples from the Cancer Genome Atlas (TCGA) database. We validated major regulators had significantly differential mRNA and protein expression in tumor tissue compared to normal tissues from 39 pairs of clinical breast cancer samples with different molecular subtypes, and especially high expression of m6A readers YTHDF1 and YTHDF3 predicted poor survival. Two clusters of breast cancer patients identified by the 15 m6A regulators' pattern showed distinct overall survival, immune activation status, and immune cell infiltration, and clinical samples confirmed the diversity of lymphocytic infiltration. The profiles of these two clusters accorded with that of two classical cancer-immune phenotypes, immune-excluded and immune-inflamed phenotypes, it suggested that m6A regulators-based patterns might serve as crucial mediators of TIME in breast cancer. Moreover, the m6A phenotype-related gene signatures could also be survival predictor in breast cancer. Therefore, comprehensive evaluation of tumor m6A modification pattern will contribute to enhance our understanding of the characterization of immune cell infiltration in the tumor microenvironment and promote the responsiveness of breast cancer to immunotherapy.
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Affiliation(s)
- Guanghui Zhao
- Medical Laboratory Center, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
| | - Junhua An
- Department of Breast Surgery, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
| | - Qian Pu
- Department of Breast Surgery, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
| | - Wenwen Geng
- Department of Breast Surgery, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
| | - Haiyun Song
- Department of Pathology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
| | - Qianqian Zhao
- Department of Pathology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
| | - Haidong Gao
- Department of Breast Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
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23
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Nartey LK, Pu Q, Zhu W, Zhang S, Li J, Yao Y, Hu X. Antagonistic and plant growth promotion effects of Mucor moelleri, a potential biocontrol agent. Microbiol Res 2021; 255:126922. [PMID: 34839169 DOI: 10.1016/j.micres.2021.126922] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 09/10/2021] [Accepted: 11/16/2021] [Indexed: 10/19/2022]
Abstract
With the increasing demand for high quality and environmentally safe or green food, Biological Control Agents (BCAs) are playing critical roles in green agriculture, which in turn has paved the way for the requirement of effective, appropriate microbial antagonists. In this study, Mucor moelleri AA1 was isolated and investigated for its growth promotion and antagonism against Athelia rolfsii and Colletotrichum gloeosporiodes. The results showed a high antagonistic activity of M. moelleri against A. rolfsii and C. gloeosporiodes with percentage inhibitions of 73 % and 86 % respectively using the dual plate method, and the same antagonistic activity was also observed in liquid cocultures. A pot study analysis showed significant suppression of the diseases as well as growth promotion on tomato. Scanning electron microscopy (SEM) indicated that M. moelleri inhibited the growth of mycelium and the production of web-like materials. Based on headspace-solid phase microextraction (HS-SPME) analysis, microbial volatile compounds were determined, which were mainly aromatic compounds and alkaloids. Also, several antagonistic enzymes, such as β-1, 3- glucanase, proteases, catalase and ACC deaminase as well as the phytohormone IAA, were found to be produced by M. moelleri. Overall, these results combine to make M. moelleri a good prospective candidate for biological control and as a plant growth-promoting agent. The present study appears to be the first report identifying M. moelleri as a biological control agent.
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Affiliation(s)
- Linda Korkor Nartey
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Qian Pu
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Weijing Zhu
- Institute of Environment, Resource, Soil and Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Shuaishuai Zhang
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Jin Li
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Yanlai Yao
- Institute of Environment, Resource, Soil and Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Xiufang Hu
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou, 310018, China.
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24
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Pu Q, Xiu G, Sun J, Liu P, Ling B. [Progress on the effect of mesenchymal stem cell derived exosomes on multiple organ dysfunction in sepsis]. Zhonghua Wei Zhong Bing Ji Jiu Yi Xue 2021; 33:757-760. [PMID: 34296702 DOI: 10.3760/cma.j.cn121430-20200908-00620] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Mesenchymal stem cell derived (MSC) exosomes are extracellular vesicles with a diameter of about 50-200 nm. Exosomes contain a large number of biologically active substances including mRNAs, miRNAs, cytokines, chemokines, proteins, lipids, etc. MSC exosomes exert biological effects through paracrine and endocrine pathways in vivo. Uncontrolled inflammation and multiple organ dysfunction are the key roles in the progression of sepsis, moreover, heart, lungs, kidneys and brain are the general target organs to be damaged. MSC exosomes regulate the expression of cytokines, the production of inflammatory cell, the levels of inflammatory response and the recovery of damaged tissues or organ function. Therefore, studying the application of MSC exosomes is significant for the clinical treatment of sepsis. This article reviews the systemic inflammation regulation by MSC exosomes and its protective function on targeted organs such as heart, lungs, kidneys, brain, liver, etc. to provide evidences for the treatment of sepsis.
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Affiliation(s)
- Qian Pu
- Department of the Intensive Care Unit, The Fourth Affiliated Hospital of Kunming Medical University (The Second People's Hospital of Yunnan Province), Kunming 650021, Yunnan, China. Corresponding author: Ling Bin,
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25
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Pu Q, Zeng GH, Wang GW, Lu LE, Li A, Cheng XR, Wang XY, Li O, Sun C, Hu XF. Foetidibacter luteolus gen. nov., sp. nov., isolated from the rhizosphere of Salvia miltiorrhiza. Arch Microbiol 2021; 203:2425-2430. [PMID: 33674952 DOI: 10.1007/s00203-020-02123-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 11/12/2020] [Accepted: 11/18/2020] [Indexed: 11/25/2022]
Abstract
A polyphosphate-producing bacterium, YG09T, was isolated from the rhizosphere of Salvia miltiorrhiza. Its colonies were 2.0-3.0 mm in diameter, smooth, circular, convex and yellow after growth on R2A at 28 °C for 72 h, with aerobic, Gram-stain-negative, non-motile and rod-shaped bacteria. The strain was found to grow at 10-40 °C (optimum 37 °C), pH 5.5-8.0 (optimum 6.0), with 0-0.6% (w/v) NaCl (optimum 0). Chemotaxonomic analysis showed menaquinone-7 as the only quinone present; C15: 1 iso G, C15: 1 iso, C16: 0, C16: 0 3OH, C17: 0 iso 3OH, summed feature 3 (C16:1 ω7c and/or C16:1 ω6c) as the major fatty acids (> 5%), and phosphatidylethanolamine, three unidentified phospholipids, four unidentified polar lipids, three unidentified aminolipids, and one unidentified amino phospholipid as the polar lipids. The DNA G + C content was 44.6 mol%. The 16S rRNA gene sequences of the isolate showed highest similarities to Panacibacter ginsenosidivorans Gsoil 1550T (93.6%), Filimonas endophytica SR2-06T (93.4%), Parasegetibacter terrae SGM2-10T (92.8%), and Arvibacter flaviflagrans C-1-16T (92.7%), within the family Chitinophagaceae of the phylum Bacteroidetes. The ANI values between strain YG09T and Panacibacter ginsenosidivoran Gsoil 1550T, Filimonas endophytica SR2-06T and Filimonas lacunae YT21T were 69.4, 68.3 and 68.7%, respectively. Based on phenotypic, genotypic and phylogenetic analyses, strain YG09T represents a novel genus in the family Chitinophagaceae, for which the name Foetidibacter luteolus gen. sp. nov. is proposed. The type strain is Foetidibacter luteolus YG09T (= MCCC 1K04042T = KCTC 72595T).
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Affiliation(s)
- Qian Pu
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, 928th Second Avenue, Hangzhou, 310018, China
| | - Guo-Hong Zeng
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, 928th Second Avenue, Hangzhou, 310018, China
| | - Gui-Wei Wang
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, 928th Second Avenue, Hangzhou, 310018, China
| | - Ling-Er Lu
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, 928th Second Avenue, Hangzhou, 310018, China
| | - Ang Li
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, 928th Second Avenue, Hangzhou, 310018, China
| | - Xu-Rui Cheng
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, 928th Second Avenue, Hangzhou, 310018, China
| | - Xue-Ying Wang
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, 928th Second Avenue, Hangzhou, 310018, China
| | - Ou Li
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, 928th Second Avenue, Hangzhou, 310018, China
| | - Cong Sun
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, 928th Second Avenue, Hangzhou, 310018, China
| | - Xiu-Fang Hu
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, 928th Second Avenue, Hangzhou, 310018, China.
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Pu Q, Lv YR, Dong K, Geng WW, Gao HD. Tumor suppressor OTUD3 induces growth inhibition and apoptosis by directly deubiquitinating and stabilizing p53 in invasive breast carcinoma cells. BMC Cancer 2020; 20:583. [PMID: 32571254 PMCID: PMC7310228 DOI: 10.1186/s12885-020-07069-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 06/15/2020] [Indexed: 12/20/2022] Open
Abstract
Background P53 pathway inactivation plays an important role in the process of breast cancer tumorigenesis. Post-translational protein modification abnormalities have been confirmed to be an important mechanism underlying inactivation of p53. Numerous deubiquitinating enzymes are aberrantly expressed in breast cancer, and a few deubiquitination enzymes can deubiquitinate and stabilize p53. Here, we report that ovarian tumor (OTU) deubiquitinase 3 (OTUD3) is a deubiquitylase of p53 in breast carcinoma (BC). Methods Correlations between the mRNA expression levels of OTUD3, TP53 and PTEN and the prognosis of BC were assessed with the Kaplan-Meier Plotter tool. OTUD3 protein expression in 80 pairs of specimens in our cohort was examined by immunohistochemistry and western blotting. The relationship among OTUD3, p53, and p21 proteins was analyzed. Half-life analysis and ubiquitylation assay were performed to elucidate the molecular mechanism by which OTUD3 stabilizes p53. The interaction between OTUD3 and p53 in BC cells was verified by a co-immunoprecipitation assay and GST pulldown experiments. MTS assay for proliferation detection, detection of apoptosis induced by cisplatin and colony formation assay were employed to investigate the functional effects of OTUD3 on breast cancer cells. Results OTUD3 downregulation is correlated with a poor prognosis in BC patients. OTUD3 expression is decreased in breast cancer tissues and not associated with the histological grade. OTUD3 also inhibits cell proliferation and clone formation and increases the sensitivity of BC cells to apoptosis induced by chemotherapy drugs. Reduced OTUD3 expression accompanied by decreased p53 abundance is correlated with human breast cancer progression. Ectopic expression of wild-type OTUD3, but not its catalytically inactive mutant, stabilizes and activates p53. Mechanistically, OTUD3 interacts directly with p53 through the amino-terminal OTU region. Finally, OTUD3 protects p53 from murine double minute 2 (Mdm2)-mediated ubiquitination and degradation, enabling the deubiquitination of p53 in BC cells. Conclusions In summary, we found that OTUD3 may be a potential therapeutic target for restoring p53 function in breast cancer cells and suggest that the OTUD3-p53 signaling axis may play a critical role in tumor suppression.
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Affiliation(s)
- Qian Pu
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, P.R. China.,Department of General Surgery, Qilu Hospital (Qingdao) of Shandong University, 758 Hefei Road, Qingdao, Shandong, 266035, P.R. China
| | - Yan-Rong Lv
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, P.R. China
| | - Ke Dong
- Shandong University, Jinan, Shandong, 250012, P.R. China
| | - Wen-Wen Geng
- Department of General Surgery, Qilu Hospital (Qingdao) of Shandong University, 758 Hefei Road, Qingdao, Shandong, 266035, P.R. China
| | - Hai-Dong Gao
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, P.R. China. .,Department of General Surgery, Qilu Hospital (Qingdao) of Shandong University, 758 Hefei Road, Qingdao, Shandong, 266035, P.R. China.
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27
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Zhu S, Zhao G, Zhao X, Zhan X, Cai M, Geng C, Pu Q, Zhao Q, Fu Q, Huang C, Wang Q. Elevated soluble E-cadherin during the epithelial-mesenchymal transition process and as a diagnostic marker in colorectal cancer. Gene 2020; 754:144899. [PMID: 32544494 DOI: 10.1016/j.gene.2020.144899] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 05/20/2020] [Accepted: 06/10/2020] [Indexed: 01/06/2023]
Abstract
Epithelial-mesenchymal transition (EMT) plays a crucial role in colorectal cancer (CRC) metastasis. Soluble E-cadherin (sE-cadherin) is a peptide degradation product of the E-cadherin, a key epithelial molecule of EMT. However, it is not known if elevated levels of sE-cadherin also occur during EMT. And the study of sE-cadherin in colorectal cancer is rare. The purpose of the study was to evaluate the relationship between sE-cadherin and EMT in CRC and to evaluate the diagnostic value of sE-cadherin as a serum marker for CRC. Transforming growth factor-β1 (TGF-β1) was used to induce EMT in HT29 and SW480 cells. The cells treated with TGF-β1 showed morphological and biological behavior changes consistent with EMT. Western blot and ELISA showed the levels of sE-cadherin were increased during EMT in CRC cells. In addition, we intravenously injected luciferase-labeled SW480 cells into nude mice to construct CRC metastasis model. Following the elongation of time, the fluorescence intensity of the experimental group was gradually increased. Correspondingly, the serum concentration of sE-cadherin also increased during CRC metastasis in mice. Furthermore, compared to healthy subjects, significantly higher levels of serum sE-cadherin were also observed in CRC patients and correlated with clinicopathological features. For discriminating CRC from healthy controls, the area under the receiver operating characteristic (ROC) curve (AUC) of sE-cadherin was 0.853, while the optimal cut-off point was set at 5928.16 ng/ml, the diagnostic sensitivity was 73.9% and the specificity was 80%. Compared with current commercial biomarkers (CEA, CA19-9 and CA125), the diagnostic performance of sE-cadherin was highest. Combined sE-cadherin and CEA raised the sensitivity to 82.4%. Serum sE-cadherin level can be used as a potential diagnostic biomarker of CRC.
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Affiliation(s)
- Shuzhen Zhu
- Department of Clinical Laboratory, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107 Wenhuaxi Road, Jinan, Shandong 250012, China
| | - Guanghui Zhao
- Department of Clinical Laboratory, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107 Wenhuaxi Road, Jinan, Shandong 250012, China
| | - Xiaoyun Zhao
- Department of Clinical Laboratory, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107 Wenhuaxi Road, Jinan, Shandong 250012, China
| | - Xiaohong Zhan
- Department of Pathology, The Affiliated Hospital of Qingdao University, Jiangsu Road, Qingdao, Shandong 266035, China
| | - Meijuan Cai
- Department of Clinical Laboratory, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107 Wenhuaxi Road, Jinan, Shandong 250012, China
| | - Congcong Geng
- Department of Clinical Laboratory, Qilu Hospital(Qingdao), Cheeloo College of Medicine, Shandong University, 758 Hefei Road, Qingdao, Shandong 266035, China
| | - Qian Pu
- Department of General Surgery, Qilu Hospital(Qingdao), Cheeloo College of Medicine, Shandong University, 758 Hefei Road, Qingdao, Shandong 266035, China
| | - Qianqian Zhao
- Department of Pathology, Qilu Hospital(Qingdao), Cheeloo College of Medicine, Shandong University, 758 Hefei Road, Qingdao, Shandong 266035, China
| | - Qingsong Fu
- Medical Experimental Center, Qilu Hospital(Qingdao), Cheeloo College of Medicine, Shandong University, 758 Hefei Road, Qingdao, Shandong 266035, China
| | - Chunxiao Huang
- Department of Clinical Laboratory, Qilu Hospital(Qingdao), Cheeloo College of Medicine, Shandong University, 758 Hefei Road, Qingdao, Shandong 266035, China
| | - Qian Wang
- Department of Clinical Laboratory, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107 Wenhuaxi Road, Jinan, Shandong 250012, China.
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Shiferson A, Aboian E, Shih M, Pu Q, Jacob T, Rhee R. Iliac Venous Stenting for Outflow Obstruction Does Not Significantly Change the Quality of Life of Patients With Severe Chronic Venous Insufficiency. J Vasc Surg Venous Lymphat Disord 2020; 8:494. [DOI: 10.1016/j.jvsv.2020.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Pu Q, Lu L, Dong K, Geng WW, Lv YR, Gao HD. The Novel Transcription Factor CREB3L4 Contributes to the Progression of Human Breast Carcinoma. J Mammary Gland Biol Neoplasia 2020; 25:37-50. [PMID: 32026099 DOI: 10.1007/s10911-020-09443-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 01/22/2020] [Indexed: 12/11/2022] Open
Abstract
Breast carcinoma(BC)is the most common cancer type among females globally. Understanding the molecular pathways that trigger the development of BC is crucial for both prevention and treatment. As such, the role of transcription factors (TFs) in the development of BC is a focal point in this field. CREB3s play a critical role in initiating the unfolded protein response (UPR); however, the role of CREB3 family members in breast cancer development remains largely unknown. Here, we mined the ONCOMINE database for the transcriptional data of CREB3s in patients with BC. Then, the regulatory functions of a novel TF, CREB3L4, were investigated. CREB3L4 knockdown in MDA-MB-231 and MCF-7 cells suppressed proliferation and promoted apoptosis and cell cycle arrest. ChIP assays confirmed that CREB3L4 can directly bind to the PCNA promoter region, suggesting that the PCNA protein may be functionally downstream of CREB3L4. Additionally, the expression level of CREB3L4 was assessed using our cohort. CREB3L4 is upregulated in breast cancer tissues and is significantly associated with histological grade and tumour size (P = 0.001 and P < 0.001, respectively). Furthermore, PCNA expression was upregulated in breast cancer tissues and positively correlated with CREB3L4. In summary, CREB3L4 may play an important role in the progression of human BC and may serve as a therapeutic target.
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Affiliation(s)
- Qian Pu
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, People's Republic of China
- Department of General Surgery, Qilu Hospital (Qingdao) of Shandong University, Qingdao, Shandong, 266035, People's Republic of China
| | - Li Lu
- Department of General Surgery, Shanghai Children's Hospital, Shanghai Jiaotong University, Shanghai, 200040, People's Republic of China
| | - Ke Dong
- Shandong University, Jinan, Shandong, 250012, People's Republic of China
| | - Wen-Wen Geng
- Department of General Surgery, Qilu Hospital (Qingdao) of Shandong University, Qingdao, Shandong, 266035, People's Republic of China
| | - Yan-Rong Lv
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, People's Republic of China.
| | - Hai-Dong Gao
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, People's Republic of China.
- Department of General Surgery, Qilu Hospital (Qingdao) of Shandong University, Qingdao, Shandong, 266035, People's Republic of China.
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Wang W, Wang X, Luo C, Pu Q, Yin Q, Xu L, Peng X, Ma S, Xia Q, Liu S. Let-7 microRNA is a critical regulator in controlling the growth and function of silk gland in the silkworm. RNA Biol 2020; 17:703-717. [PMID: 32019402 DOI: 10.1080/15476286.2020.1726128] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The silk gland is characterized by high protein synthesis. However, the molecular mechanisms controlling silk gland growth and silk protein synthesis remain undetermined. Here we demonstrated that CRISPR/Cas9-based knockdown of let-7 or the whole cluster promoted endoreduplication and enlargement of the silk gland, accompanied by changing silk yield, whereas transgenic overexpression of let-7 led to atrophy and degeneration of the silk gland. Mechanistically, let-7 controls cell growth in the silk gland through coordinating nutrient metabolism processes and energy signalling pathways. Transgenic overexpression of pyruvate carboxylase, a novel target of let-7, resulted in enlargement of the silk glands, which is consistent with the abnormal phenotype of the let-7 knockdown. Overall, our data reveal a previously unknown miRNA-mediated regulation of silk gland growth and physiology and shed light on involvement of let-7 as a critical stabilizer and booster in carbohydrate metabolism, which may have important implications for understanding of the molecular mechanism and physiological function of specialized organs in other species.
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Affiliation(s)
- Wei Wang
- State Key Laboratory of Silkworm Genome Biology, Biological Science Research Center, Southwest University, Chongqing, PR China
| | - Xinran Wang
- State Key Laboratory of Silkworm Genome Biology, Biological Science Research Center, Southwest University, Chongqing, PR China
| | - Chengyi Luo
- State Key Laboratory of Silkworm Genome Biology, Biological Science Research Center, Southwest University, Chongqing, PR China
| | - Qian Pu
- State Key Laboratory of Silkworm Genome Biology, Biological Science Research Center, Southwest University, Chongqing, PR China
| | - Quan Yin
- State Key Laboratory of Silkworm Genome Biology, Biological Science Research Center, Southwest University, Chongqing, PR China
| | - Lili Xu
- State Key Laboratory of Silkworm Genome Biology, Biological Science Research Center, Southwest University, Chongqing, PR China
| | - Xinyue Peng
- State Key Laboratory of Silkworm Genome Biology, Biological Science Research Center, Southwest University, Chongqing, PR China
| | - Sanyuan Ma
- State Key Laboratory of Silkworm Genome Biology, Biological Science Research Center, Southwest University, Chongqing, PR China
| | - Qingyou Xia
- State Key Laboratory of Silkworm Genome Biology, Biological Science Research Center, Southwest University, Chongqing, PR China.,Chongqing Key Laboratory of Sericultural Science, Chongqing Engineering and Technology Research Center for Novel Silk Materials, Southwest University, Chongqing, PR China
| | - Shiping Liu
- State Key Laboratory of Silkworm Genome Biology, Biological Science Research Center, Southwest University, Chongqing, PR China.,Chongqing Key Laboratory of Sericultural Science, Chongqing Engineering and Technology Research Center for Novel Silk Materials, Southwest University, Chongqing, PR China.,College of Life Science, China West Normal University, Nanchong, PR China
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Geng W, Dong K, Pu Q, Lv Y, Gao H. SHOC2 is associated with the survival of breast cancer cells and has prognostic value for patients with breast cancer. Mol Med Rep 2019; 21:867-875. [PMID: 31974612 PMCID: PMC6947812 DOI: 10.3892/mmr.2019.10889] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 11/27/2019] [Indexed: 02/06/2023] Open
Abstract
SHOC2 leucine rich repeat scaffold protein (SHOC2) has been identified as a positive regulator of the Ras pathway; however, the function of SHOC2 in breast cancer has rarely been explored. The current study investigated the effects of SHOC2 on breast cancer cell growth and evaluated its prognostic value in patients with breast cancer. The effects of SHOC2 on MCF‑7 and MDA‑MB‑231 breast cancer cells were studied using short hairpin RNA. In total, 120 pairs of formalin‑fixed, paraffin‑embedded breast cancer tissue specimens were compared to normal tissue using immunohistochemical staining. SHOC2 knockdown significantly inhibited MCF‑7 and MDA‑MB‑231 breast cancer cell proliferation, and induced cell apoptosis and cell cycle arrest. Additionally, the RAS‑MAPK/PI3K pathway was inhibited by SHOC2 knockdown. In a clinical study, the results revealed that high SHOC2 expression was associated with more aggressive clinical characteristics of breast cancer. Moreover, Kaplan‑Meier and Cox regression analyses indicated that SHOC2 expression was an independent prognostic factor for survival, suggesting that increased SHOC2 expression predicted a worse overall survival. This indicated that SHOC2 knockdown could affect breast cancer cell survival, and SHOC2 upregulation may be associated with a poor prognosis in patients with breast cancer.
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Affiliation(s)
- Wenwen Geng
- Department of Breast Surgery, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Ke Dong
- Department of Breast Surgery, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Qian Pu
- Department of Breast Surgery, Qilu Hospital (Qingdao) of Shandong University, Qingdao, Shandong 266000, P.R. China
| | - Yanrong Lv
- Department of Breast Surgery, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Haidong Gao
- Department of Breast Surgery, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
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Li X, Yang J, Pu Q, Peng X, Xu L, Liu S. Serine hydroxymethyltransferase controls blood-meal digestion in the midgut of Aedes aegypti mosquitoes. Parasit Vectors 2019; 12:460. [PMID: 31551071 PMCID: PMC6757384 DOI: 10.1186/s13071-019-3714-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 04/18/2019] [Accepted: 09/12/2019] [Indexed: 02/07/2023] Open
Abstract
Background Female Aedes aegypti mosquitoes are vectors of arboviruses that cause diverse diseases of public health significance. Blood protein digestion by midgut proteases provides anautogenous mosquitoes with the nutrients essential for oocyte maturation and egg production. Midgut-specific miR-1174 affects the functions of the midgut through its target gene serine hydroxymethyltransferase (SHMT). However, less is known about SHMT-regulated processes in blood digestion by mosquitoes. Methods RNAi of SHMT was realized by injection of the double-stranded RNA at 16 h post-eclosion. The expression of SHMT at mRNA level and protein level was assayed by real-time PCR and Western blotting, respectively. Statistical analyses were performed with GraphPad7 using Student’s t-test. Results Here, we confirmed that digestion of blood was inhibited in SHMT RNAi-silenced female A. aegypti mosquitoes. Evidence is also presented that all SHMT-depleted female mosquitoes lost their flight ability and died within 48 h of a blood meal. Furthermore, most examined digestive enzymes responded differently in their transcriptional expression to RNAi depletion of SHMT, with some downregulated, some upregulated and some remaining stable. Phylogenetic analysis showed that transcriptional expression responses to SHMT silence were largely unrelated to the sequence similarity between these enzymes. Conclusions Overall, this research shows that SHMT was expressed at a low level in the midgut of Aedes aegypti mosquitoes, but blood-meal digestion was inhibited when SHMT was silenced. Transcriptional expressions of different digestive enzymes were affected in response to SHMT depletion, suggesting that SHMT is required for the blood-meal digestion in the midgut and targeting SHMT could provide an effective strategy for vector mosquito population control.
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Affiliation(s)
- Xuemei Li
- State Key Laboratory of Silkworm Genome Biology, Biological Science Research Center, Southwest University, Chongqing, 400715, People's Republic of China
| | - Jinyu Yang
- State Key Laboratory of Silkworm Genome Biology, Biological Science Research Center, Southwest University, Chongqing, 400715, People's Republic of China.,College of Biotechnology, Southwest University, Chongqing, 400715, People's Republic of China
| | - Qian Pu
- State Key Laboratory of Silkworm Genome Biology, Biological Science Research Center, Southwest University, Chongqing, 400715, People's Republic of China
| | - Xinyue Peng
- State Key Laboratory of Silkworm Genome Biology, Biological Science Research Center, Southwest University, Chongqing, 400715, People's Republic of China
| | - Lili Xu
- State Key Laboratory of Silkworm Genome Biology, Biological Science Research Center, Southwest University, Chongqing, 400715, People's Republic of China
| | - Shiping Liu
- State Key Laboratory of Silkworm Genome Biology, Biological Science Research Center, Southwest University, Chongqing, 400715, People's Republic of China. .,College of Biotechnology, Southwest University, Chongqing, 400715, People's Republic of China. .,College of Life Science, China West Normal University, Nanchong, 637002, People's Republic of China.
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Wang W, Wang X, Li X, Pu Q, Luo C, Xu L, Peng X, Liu S. Genetic Manipulation of MicroRNAs in the Silk Gland of Silkworm, Bombyx Mori. Biol Proced Online 2019; 21:16. [PMID: 31427900 PMCID: PMC6694536 DOI: 10.1186/s12575-019-0102-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 03/18/2019] [Accepted: 06/07/2019] [Indexed: 02/07/2023] Open
Abstract
Background MicroRNAs (miRNAs) are a class of non-coding RNAs with important post-transcriptional regulatory functions. To reveal the function of miRNAs in vivo, the critical step is to change their expression levels in the tissues or organs. In this work, we explored the application of several important genetic techniques in altering the expression of silk gland-specific miR-274 of silkworm (Bombyx mori). Results Injection of synthesized microRNA mimics and antagomirs exerted no effect on the expression of miR-274 in the silk gland, miR-274 sponge specifically absorbed miR-274 and down-regulated its expression, transgenic overexpression of miR-274 precursor significantly up-regulated miR-274, and finally tissue-specific CRISPR/Cas9 system achieved deletion of miR-274. Conclusions A practical technical system was established for studying the functions of miRNAs in silk gland of Bombyx mori. Our research provides methodological support for the functional study of miRNAs and other noncoding RNAs in the silk gland and more organs in other species.
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Affiliation(s)
- Wei Wang
- 1State Key Laboratory of Silkworm Genome Biology,Biological Science Research Center, Southwest University, Chongqing, 400715 People's Republic of China.,2Chongqing Key Laboratory of Sericultural Science, Chongqing Engineering and Technology Research Center for Novel Silk Materials, Southwest University, Chongqing, 400715 People's Republic of China
| | - Xinran Wang
- 1State Key Laboratory of Silkworm Genome Biology,Biological Science Research Center, Southwest University, Chongqing, 400715 People's Republic of China.,2Chongqing Key Laboratory of Sericultural Science, Chongqing Engineering and Technology Research Center for Novel Silk Materials, Southwest University, Chongqing, 400715 People's Republic of China
| | - Xuemei Li
- 1State Key Laboratory of Silkworm Genome Biology,Biological Science Research Center, Southwest University, Chongqing, 400715 People's Republic of China.,2Chongqing Key Laboratory of Sericultural Science, Chongqing Engineering and Technology Research Center for Novel Silk Materials, Southwest University, Chongqing, 400715 People's Republic of China
| | - Qian Pu
- 1State Key Laboratory of Silkworm Genome Biology,Biological Science Research Center, Southwest University, Chongqing, 400715 People's Republic of China.,2Chongqing Key Laboratory of Sericultural Science, Chongqing Engineering and Technology Research Center for Novel Silk Materials, Southwest University, Chongqing, 400715 People's Republic of China
| | - Chengyi Luo
- 1State Key Laboratory of Silkworm Genome Biology,Biological Science Research Center, Southwest University, Chongqing, 400715 People's Republic of China.,2Chongqing Key Laboratory of Sericultural Science, Chongqing Engineering and Technology Research Center for Novel Silk Materials, Southwest University, Chongqing, 400715 People's Republic of China
| | - Lili Xu
- 1State Key Laboratory of Silkworm Genome Biology,Biological Science Research Center, Southwest University, Chongqing, 400715 People's Republic of China.,2Chongqing Key Laboratory of Sericultural Science, Chongqing Engineering and Technology Research Center for Novel Silk Materials, Southwest University, Chongqing, 400715 People's Republic of China
| | - Xinyue Peng
- 1State Key Laboratory of Silkworm Genome Biology,Biological Science Research Center, Southwest University, Chongqing, 400715 People's Republic of China.,2Chongqing Key Laboratory of Sericultural Science, Chongqing Engineering and Technology Research Center for Novel Silk Materials, Southwest University, Chongqing, 400715 People's Republic of China
| | - Shiping Liu
- 1State Key Laboratory of Silkworm Genome Biology,Biological Science Research Center, Southwest University, Chongqing, 400715 People's Republic of China.,2Chongqing Key Laboratory of Sericultural Science, Chongqing Engineering and Technology Research Center for Novel Silk Materials, Southwest University, Chongqing, 400715 People's Republic of China
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Yu X, Huang X, Chen X, Liu J, Wu C, Pu Q, Wang Y, Kang X, Zhou L. Characterization of a novel anti-human lymphocyte activation gene 3 (LAG-3) antibody for cancer immunotherapy. MAbs 2019; 11:1139-1148. [PMID: 31242068 DOI: 10.1080/19420862.2019.1629239] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Lymphocyte activation gene 3 (LAG-3) is expressed on activated T cells, natural killer cells or B cells, and functions to negatively regulate homeostasis of these cells. Anti-LAG-3 antibodies might be useful for antitumor immunotherapy. In this study, we characterized a novel anti-LAG-3 antibody, LBL-007, which was isolated from a human antibody phage display library. LBL-007 was found to specifically bind to human LAG-3 antigen, but not to human CD4 or mouse LAG-3. LBL-007 bound activated T cells and promoted interleukin-2 secretion. LBL-007 internalization efficacy by endocytosis into different cells was better than that of another anti-LAG-3 antibody, relatlimab analog. Moreover, LBL-007 was able to block LAG-3 binding to MHC class II molecules and liver sinusoidal endothelial cell lectin, and block LAG-3-induced downstream signaling. In mice transplanted with colorectal cancer cells, treatment with either anti-PD-1 antibody or LBL-007 (10 mg/kg per mouse twice a week for three weeks) resulted in a significant delay in tumor growth compared with control IgG treatment, and their combination was even more effective. Serum LBL-007 levels were highly stable in monkeys after a single intravenous injection of LBL-007 at 3, 10, or 30 mg/kg. This study demonstrated that the combination of LBL-007 with an anti-PD-1 antibody is a promising antitumor regimen for immunotherapy of solid tumors in future that deserves further study.
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Affiliation(s)
- Xiaojie Yu
- a Central Laboratory, Navy General Hospital of PLA , Beijing , China
| | - Xiao Huang
- b Department of Research and Discovery, Nanjing Leads Biolabs Co., Ltd , Nanjing , China
| | - Xiuxiu Chen
- c Naval Clinical College, Anhui Medical University , Hefei , China
| | - Jianfei Liu
- a Central Laboratory, Navy General Hospital of PLA , Beijing , China
| | - Chenglin Wu
- a Central Laboratory, Navy General Hospital of PLA , Beijing , China
| | - Qian Pu
- a Central Laboratory, Navy General Hospital of PLA , Beijing , China
| | - Yuxiao Wang
- a Central Laboratory, Navy General Hospital of PLA , Beijing , China
| | - Xiaoqiang Kang
- b Department of Research and Discovery, Nanjing Leads Biolabs Co., Ltd , Nanjing , China
| | - Lijun Zhou
- a Central Laboratory, Navy General Hospital of PLA , Beijing , China
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Wu CL, Liu JF, Liu Y, Wang YX, Fu KF, Yu XJ, Pu Q, Chen XX, Zhou LJ. Beclin1 inhibition enhances paclitaxel‑mediated cytotoxicity in breast cancer in vitro and in vivo. Int J Mol Med 2019; 43:1866-1878. [PMID: 30720049 DOI: 10.3892/ijmm.2019.4089] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 01/30/2019] [Indexed: 11/05/2022] Open
Abstract
Beclin1, a key regulator of autophagy, has been demonstrated to be associated with cancer cell resistance to chemotherapy. Paclitaxel is a conventional chemotherapeutic drug used in the clinical treatment of breast cancer. However, the function and mechanism of Beclin1 in paclitaxel‑mediated cytotoxicity in breast cancer are not well defined. The present study demonstrated that paclitaxel suppressed cell viability and Beclin1 expression levels in BT‑474 breast cancer cells in a dose‑ and time‑dependent fashion. Compared with the control, the knockdown of Beclin1 significantly enhanced breast cancer cell death via the induction of caspase‑dependent apoptosis following paclitaxel treatment in vitro (P<0.05). In a BT‑474 xenograft model, paclitaxel achieved substantial inhibition of tumor growth in the Beclin1 knockdown group compared with the control group. Furthermore, analysis of the publicly available Gene Expression Omnibus datasets revealed a clinical correlation between Beclin1 levels and the response to paclitaxel therapy in patients with breast cancer. Collectively, the present results suggest that Beclin1 protects breast cancer cells from apoptotic death. Thus, the inhibition of Beclin1 may be a novel way to improve the effect of paclitaxel. Additionally, Beclin1 may function as a favorable prognostic biomarker for paclitaxel treatment in patients with breast cancer.
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Affiliation(s)
- Cheng-Lin Wu
- Central Laboratory, Navy General Hospital, Beijing 100048, P.R. China
| | - Jian-Fei Liu
- Central Laboratory, Navy General Hospital, Beijing 100048, P.R. China
| | - Yan Liu
- Central Laboratory, Navy General Hospital, Beijing 100048, P.R. China
| | - Yu-Xiao Wang
- Central Laboratory, Navy General Hospital, Beijing 100048, P.R. China
| | - Kai-Fei Fu
- Central Laboratory, Navy General Hospital, Beijing 100048, P.R. China
| | - Xiao-Jie Yu
- Central Laboratory, Navy General Hospital, Beijing 100048, P.R. China
| | - Qian Pu
- Central Laboratory, Navy General Hospital, Beijing 100048, P.R. China
| | - Xiu-Xiu Chen
- Central Laboratory, Navy General Hospital, Beijing 100048, P.R. China
| | - Li-Jun Zhou
- Central Laboratory, Navy General Hospital, Beijing 100048, P.R. China
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Abstract
Purpose
This paper aims to provide an optimization method of workflow for publishing houses and electronic book (e-book) studies in the field of digital publishing.
Design/methodology/approach
Based on the studies of publishing houses in Beijing, the present conversion workflow is illustrated using a functional modeling methodology. Then, the workflow is analyzed using 5W1H (why, who, what, where, when, how) methodology and optimized using ECRSI (eliminate, combine, rearrange, simplify and increase) principles. To validate the optimization effect, the workflow before and after optimization are generated and implemented by the ExtendSim® simulation software.
Findings
The simulation results show that under similar circumstances, both quantity and quality of the products are improved after optimization, which indicate that the optimization method is effective.
Practical implications
Electronic PUBlication (EPUB) has significant requirements to satisfy the needs of the mobile reading market and to earn increased profits, whereas some e-books are still preserved in a portable document format (PDF). This study results in the enhanced EPUB quality and production efficiency of the PDF-to-EPUB format conversion workflow in publishing houses. Publishing houses around the world can refer to this study to make a similar optimization when handling PDF-to-EPUB.
Originality/value
This research introduces the traditional industrial engineering analytical techniques to the workflow optimization of e-book conversion. Compared with the most of other methods used to optimize workflow, this method is simpler, more efficient and more suitable for e-book format conversion.
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Wang C, Sun J, Zhu R, Liang Q, Gong Y, Pu Q, Wang Z, Zhou L. HMPA-Catalyzed One-Pot Multistep Hydrogenation Method for the Synthesis of 1,2,3-Trisubstituted Indolines. Synlett 2017. [DOI: 10.1055/s-0036-1590953] [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: 10/18/2022]
Abstract
A convenient and facile method was developed for the synthesis of 1,2,3-trisubstituted indolines. Starting from indole derivatives and ketones/aldehydes, the corresponding indoline products could be obtained with high yield by the hexamethylphosphoramide (HMPA) catalyzed indole Friedel–Crafts reaction, reduction and direct reductive amination process.
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Affiliation(s)
- C. Wang
- Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences
| | - J. Sun
- Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences
| | - R. Zhu
- Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences
- Graduate University of the Chinese Academy of Sciences
| | - Q. Liang
- Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences
- Graduate University of the Chinese Academy of Sciences
| | - Y. Gong
- Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences
- Graduate University of the Chinese Academy of Sciences
| | - Q. Pu
- Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences
- Graduate University of the Chinese Academy of Sciences
| | - Z. Wang
- Department of Chemistry, Xihua University
| | - L. Zhou
- Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences
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Mei JD, Pu Q, Ma L, Liu CW, Liu LX. [Strategies for the prevention and control of bleeding due to vascular injury in thoracoscopic lung surgery]. Zhonghua Wai Ke Za Zhi 2017; 55:898-902. [PMID: 29224263 DOI: 10.3760/cma.j.issn.0529-5815.2017.12.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The technique of thoracoscopic lung surgery has gradually matured. Nowadays, thoracoscope is recommended as the most preferred approach for surgical treatment of early stage non-small cell lung cancer in different guidelines. However, there are still some cases of accidential major bleeding due to vascular injury during thoracoscopic lung surgery. The wall of the hilum vessels is relatively thin. These vessels often involve a great portion of the cardiac output blood flow. Once the injury happened, the emergent condition may be life-threatening due to massive blood loss. Therefore, this became an important factor which hindered the development of thoracoscopic lung surgery. In this review, details of the vascular injury in thoracoscopic lung surgery were summarized, including the incidence of vascular injury, commonly injured sites and reasons of the injuries. Among all the cases of thoracoscopic major pulmonary resection, 2.9% to 9.2% may suffer from vascular injury during the operation. The most commonly injuried sites are pulmonary artery and the branches, and this is also the most critical situation during thoracoscopic lung surgery. Hilum adhesion is the most important risk factor for vascular injury. On the one hand, the suction-compressing angiorrhaphy technique was developed for bleeding control and angioplasty. On the other hand, the strategies like pre-control of the pulmonary, cut the bronchus in advance, and fire the bronchus and pulmonary artery together may decrease the incidence of vascular injury in patients with risk factors.
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Affiliation(s)
- J D Mei
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
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Wei H, Zheng J, Liu YH, Zhang Z, Pu Q, Yang JS, Ma GX. [Cassane diterpenes from the seeds of Caesalpinia decapetala]. Yao Xue Xue Bao 2016; 51:1441-1444. [PMID: 29924537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Four casssane diterpenes were isolated from the ethanol extract of the seeds of Caesalpinia decapetala (Fabaceae), with a combination of various chromatographic approaches, including silica gel, Sephadex LH-20, reverse phase C18 and so on. On the basis of spectroscopic data analysis, they were identified as caesalpinin MQ (1), neocaesalpin N(2), caesalmin F (3) and α-caesalpin (4). Among them, compound 1 is a new diterpene, compounds 2-4 were isolated for the first time from the plant of C. decapetala.
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Zhang H, Xie G, Tian M, Pu Q, Qin M. Optimization of the Ultrasonic-Assisted Extraction of Bioactive Flavonoids from Ampelopsis grossedentata and Subsequent Separation and Purification of Two Flavonoid Aglycones by High-Speed Counter-Current Chromatography. Molecules 2016; 21:E1096. [PMID: 27556431 PMCID: PMC6273339 DOI: 10.3390/molecules21081096] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 08/08/2016] [Accepted: 08/16/2016] [Indexed: 01/08/2023] Open
Abstract
The fermented leaf of Ampelopsis grossedentata has been used as a beverage and folk medicine called "vine tea" in the southern region of China. In this paper, the optimum extraction conditions for the maximum recovery amounts of total flavonoids (TF), dihydromyricetin (DMY), myricitrin (MYG) and myricetin (MY) from natural Ampelopsis grossedentata leaves subjected to ultrasonic-assisted extraction (UAE) were determined and optimized by using response surface methodology. The method was employed by the Box-Behnken design (BBD) and Derringer's desirability function using methanol concentration, extraction time, liquid/solid ratio as factors and the contents of TF, DMY, MYG and MY as responses. The obtained optimum UAE conditions were as follows: a solvent of 80.87% methanol, an extraction time of 31.98 min and a liquid/solid ratio of 41.64:1 mL/g. Through analysis of the response surface, it implied that methanol concentration and the liquid/solid ratio had significant effects on TF, DMY, MYG and MY yields, whereas extraction time had relatively little effects. The established extraction and analytical methods were successfully applied to determine the contents of the total flavonoids and three individual flavonoids in 10 batches of the leaf samples of A. grossedentata from three counties in Fujian Province, China. The results suggested the variability in the quality of A. grossedentata leaves from different origins. In addition, high purities of dihydromyricetin and myricetin were simultaneously separated and purified from the extract subjected to optimized UAE, by high-speed counter-current chromatography using a solvent system of N-hexane-ethyl acetate-methanol-water (1:3:2:4; v/v/v/v). In a single operation, 200 mg of the extract were separated to yield 86.46 mg of dihydromyricetin and 3.61 mg of myricetin with the purity of 95.03% and 99.21%, respectively. The results would be beneficial for further exploiting the herbal products and controlling the quality of the herb and its derived products.
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Affiliation(s)
- Hongbing Zhang
- Department of Resources Science of Traditional Chinese Medicines, State Key Laboratory of Modern Chinese Medicines, China Pharmaceutical University, Nanjing 210009, China.
| | - Guoyong Xie
- Department of Resources Science of Traditional Chinese Medicines, State Key Laboratory of Modern Chinese Medicines, China Pharmaceutical University, Nanjing 210009, China.
| | - Mei Tian
- Department of Resources Science of Traditional Chinese Medicines, State Key Laboratory of Modern Chinese Medicines, China Pharmaceutical University, Nanjing 210009, China.
| | - Qian Pu
- Department of Resources Science of Traditional Chinese Medicines, State Key Laboratory of Modern Chinese Medicines, China Pharmaceutical University, Nanjing 210009, China.
| | - Minjian Qin
- Department of Resources Science of Traditional Chinese Medicines, State Key Laboratory of Modern Chinese Medicines, China Pharmaceutical University, Nanjing 210009, China.
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Yuan K, Lei Y, Chen HN, Chen Y, Zhang T, Li K, Xie N, Wang K, Feng X, Pu Q, Yang W, Wu M, Xiang R, Nice EC, Wei Y, Huang C. HBV-induced ROS accumulation promotes hepatocarcinogenesis through Snail-mediated epigenetic silencing of SOCS3. Cell Death Differ 2016; 23:616-27. [PMID: 26794444 DOI: 10.1038/cdd.2015.129] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2015] [Revised: 06/30/2015] [Accepted: 08/27/2015] [Indexed: 02/05/2023] Open
Abstract
Interleukin-6 (IL-6) has been demonstrated to be involved in Hepatitis B virus (HBV)-associated hepatocarcinogenesis through activation of the STAT3 pathway. The sustained activation of the IL-6/STAT3 pathway is frequently associated with repression of SOCS3, which is both a target gene and a negative regulator of STAT3. However, the silencing mechanism of SOCS3 in hepatocellular carcinoma (HCC) remains to be elucidated. Here, we showed that the repression of SOCS3 and sustained activation of IL-6/STAT3 pathway in HBV-producing HCC cells were caused by HBV-induced mitochondrial ROS accumulation. Mechanistic studies revealed that ROS-mediated DNA methylation resulted in the silencing of SOCS3. Decreased SOCS3 expression significantly promoted the proliferation of HCC cells and growth of tumor xenografts in mice. Further studies revealed that HBV-induced ROS accumulation upregulated the expression of the transcription factor, Snail, which bound to the E-boxes of SOCS3 promoter and mediated the epigenetic silencing of SOCS3 in association with DNMT1 and HDAC1. In addition, we found that the expression of Snail and SOCS3 were inversely correlated in HBV-associated HCC patients, suggesting that SOCS3 and/or Snail could be used as prognostic markers in HCC pathogenesis. Taken together, our data show that HBV-induced mitochondrial ROS production represses SOCS3 expression through Snail-mediated epigenetic silencing, leading to the sustained activation of IL-6/STAT3 pathway and ultimately contributing to hepatocarcinogenesis.
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Affiliation(s)
- K Yuan
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, P.R. China
| | - Y Lei
- Department of Biochemistry and Molecular Biology, and Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing, P.R. China
| | - H-N Chen
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, P.R. China
| | - Y Chen
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, P.R. China
| | - T Zhang
- The School of Biomedical Sciences, Chengdu Medical College, Chengdu, P.R. China
| | - K Li
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, P.R. China
| | - N Xie
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, P.R. China
| | - K Wang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, P.R. China
| | - X Feng
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, P.R. China
| | - Q Pu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, P.R. China
| | - W Yang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, P.R. China
| | - M Wu
- Department of Biochemistry and Molecular Biology, University of North Dakota, Grand Forks, ND, USA
| | - R Xiang
- School of Medicine, Nankai University, Tianjin, P.R. China
| | - E C Nice
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia
| | - Y Wei
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, P.R. China
| | - C Huang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, P.R. China
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42
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Zhu Y, Wu Y, Pu Q, Ma L, Liao H, Liu L. Minimally invasive surgery for congenital diaphragmatic hernia: a meta-analysis. Hernia 2015; 20:297-302. [PMID: 26438082 PMCID: PMC4789196 DOI: 10.1007/s10029-015-1423-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [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: 06/21/2014] [Accepted: 09/12/2015] [Indexed: 02/05/2023]
Abstract
Objectives To compare the safety and efficacy of minimally invasive surgery (MIS) with traditional open surgical approach for congenital diaphragmatic hernia (CDH). Methods A literature search was performed using the PubMed database, Embase, and the Cochrane central register of controlled trials using a defined set of criteria. The outcomes, which include post-operative mortality, incidence of hernia recurrence, rates of patch use and complications, were analyzed. Results We investigated nine studies, which included 507 patients. All studies were non-randomized historical control trials. The MIS group had a significantly lower rate of post-operative death with a risk ratio of 0.26 [95 % confidence interval (CI) 0.10–0.68; p = 0.006] but a greater incidence of hernia recurrence with a risk ratio of 3.42 (95 % CI 1.98–5.88; p < 0.00001). Rates of prosthetic patch use were similar between the two groups. Fewer cases of surgical complications were found in the MIS group with a risk ratio of 0.66 (95 % CI 0.47–0.94; p = 0.02). Conclusions MIS for CDH repair is associated with lower post-operative mortality and morbidity compared with traditional open repair. Although rate of patch use appears to be comparable, the increased risk of CDH recurrence should not be ignored. The lack of well-controlled prospective trials still limits strong evaluations of the two surgical techniques.
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Affiliation(s)
- Y Zhu
- Department of Thoracic Surgery, West China Hospital, Sichuan University, No 37, Guo Xue Xiang, 610041, Chengdu, People's Republic of China
| | - Y Wu
- Department of Pediatric Surgery, West China Hospital, Sichuan University, 610041, Chengdu, People's Republic of China
| | - Q Pu
- Department of Thoracic Surgery, West China Hospital, Sichuan University, No 37, Guo Xue Xiang, 610041, Chengdu, People's Republic of China
| | - L Ma
- Department of Thoracic Surgery, West China Hospital, Sichuan University, No 37, Guo Xue Xiang, 610041, Chengdu, People's Republic of China
| | - H Liao
- Department of Thoracic Surgery, West China Hospital, Sichuan University, No 37, Guo Xue Xiang, 610041, Chengdu, People's Republic of China
| | - L Liu
- Department of Thoracic Surgery, West China Hospital, Sichuan University, No 37, Guo Xue Xiang, 610041, Chengdu, People's Republic of China.
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Liu C, Ren F, Mei J, Pu Q, Ma L, Liu L. F-121COMBINED HEMILAMINECTOMY AND THORACOSCOPIC PROCEDURE: AN OPTIMAL TRIAGE FOR SURGICAL RESECTION OF THORACIC DUMBBELL TUMOURS. Interact Cardiovasc Thorac Surg 2015. [DOI: 10.1093/icvts/ivv204.121] [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: 11/13/2022] Open
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Pu Q, Bai Z, Haque Z, Wang J, Huang R. Occipital somites guide motor axons of the accessory nerve in the avian embryo. Neuroscience 2013; 246:22-7. [PMID: 23632169 DOI: 10.1016/j.neuroscience.2013.04.039] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2013] [Revised: 04/04/2013] [Accepted: 04/18/2013] [Indexed: 10/26/2022]
Abstract
The accessory nerve (nervus accessorius) displays a unique organization in that its axons ascend along the rostrocaudal axis after exiting the cervical spinal cord and medulla oblongata and thereafter project ventrally into the periphery at the first somite level. Little is known about how this organization is achieved. We have investigated the role of somites in the guidance of motor axons of the accessory nerve using heterotopic transplantations of somites in avian embryos. The formation of not only accessory nerve but also the vagal nerve was affected, when a more caudal occipital somite (somites 2-4) was grafted to the position of the first occipital somite. Our study reveals that only the first occipital somite permits the development of ventral projection of accessory axons, a process that is inhibited by more caudal occipital somites.
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Affiliation(s)
- Q Pu
- Department of Neuroanatomy, Institute of Anatomy, University of Bonn, Germany
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Touyz RM, Savoia C, He Y, Endemann D, Pu Q, Ko EA, Deciuceis C, Montezano A, Schiffrin EL. Increased inflammatory biomarkers in hypertensive type 2 diabetic patients: improvement after angiotensin II type 1 receptor blockade. ACTA ACUST UNITED AC 2012; 1:189-99. [PMID: 20409851 DOI: 10.1016/j.jash.2007.01.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2006] [Revised: 01/25/2007] [Accepted: 01/29/2007] [Indexed: 01/04/2023]
Abstract
Diabetes and hypertension increasingly are recognized as pro-inflammatory conditions. We tested the hypothesis that in patients with hypertension and type 2 diabetes, blood pressure (BP) reduction with an angiotensin receptor blocker (ARB), valsartan, or with a beta blocker, atenolol, is associated with a decreased inflammatory response. Normotensive subjects and hypertensive patients with type 2 diabetes (40 to 70 years of age) participated in the study. Patients (n = 28) were randomized to double-blind treatment for 1 year with valsartan (80-160 mg) or atenolol (50-100 mg) daily, added to previous therapy. Age-matched controls (n = 12) were also studied. Serum levels of cytokines (IL-6, IL-18), chemokines (MCP-1), and adhesion molecules (sICAM, sE-selectin) were measured by enzyme-linked immunosorbent assay (ELISA) as indices of systemic and vascular inflammation, before and 1 year after treatment. BP was similarly reduced by valsartan and atenolol. Glycemic control and lipid profiles were comparable in the two groups and did not change significantly with antihypertensive therapy. Serum levels of all inflammatory markers were increased in patients before treatment (by two- to four-fold vs. controls, P < .05). IL-6, IL-18, sICAM, and MCP-1 levels were reduced by valsartan (three-fold, P < .05). Only IL-18 was reduced by atenolol compared with pretreatment levels (P < .05). These data indicate that proinflammatory mediators are significantly increased in hypertensive type 2 diabetic patients and that despite similar BP lowering by valsartan and atenolol and similar glucose levels in both treated groups, global inflammatory status was improved only in the valsartan group. Our findings suggest that antihypertensive treatment, particularly with an ARB, ameliorates inflammatory processes in diabetic hypertensive patients. Such effects, which are independent of BP and glycemic control, may contribute to cardiovascular protection.
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Affiliation(s)
- Rhian M Touyz
- The Kidney Research Centre, OHRI/University of Ottawa, Ottawa, Ontario, Canada
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Abstract
The aim of this study was to retrospectively review our experience of performing simultaneous operations on concomitant diseases in the esophagus and lungs. From January 1998 to July 2009, simultaneous operations were performed on 13 patients with concomitant esophageal and pulmonary diseases, using coordinated surgical approaches. Among the 13 patients, six had primary cancers in the esophagus and lungs, five had primary esophageal cancer accompanied by a benign pulmonary disease, one had benign diseases in both esophagus and lung, and one had primary esophageal cancer with metastasis to the left lower lung. All patients survived the operations. Two major complications occurred postoperatively. One complication was bronchopleural fistula and the other was intrathoracic gastric laceration. Both patients recovered after additional treatments. Simultaneous operation of concomitant diseases in the esophagus and lungs is feasible and safe in selected patients who have received careful preoperative assessment, well-designed surgical approach, and proper perioperative management.
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Affiliation(s)
- Y Zhu
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, China
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Abstract
OBJECTIVE To demonstrate that intronic mutations in the myelin protein zero (MPZ) cause Charcot-Marie-Tooth neuropathy 1B (CMT1B) by disrupting MPZ splicing. METHODS We report a family with a T>G transversion at the invariant + 2 position in intron 4 of MPZ (c.614 + 2T>G) that abolishes 5' donor site recognition and is predicted to alter MPZ splicing. We obtained detailed clinical and neurophysiologic analysis of the family. We performed skin biopsies to investigate splicing abnormalities, MPZ protein levels, and localization in myelinated nerves. RESULTS Patients developed a late onset neuropathy with minimally slow nerve conduction velocities. Skin biopsies confirmed the predicted skipping of exon 4 and downstream frameshift of the mutant MPZ. Quantitative immuno-EM demonstrated normal nerve MPZ levels, suggesting that the mutant MPZ was transported to compact myelin. CONCLUSIONS Intronic mutations cause CMT1B by disrupting splicing and certain MPZ mutations may cause neuropathy by interacting with the wild type MPZ in the extracellular space of compact myelin.
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Affiliation(s)
- A Sabet
- Department of Neurology, University of Kentucky, Lexington, KY 40536, USA
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Savoia C, Touyz RM, Endemann DH, Pu Q, Ko EA, De Ciuceis C, Schiffrin EL. Angiotensin Receptor Blocker Added to Previous Antihypertensive Agents on Arteries of Diabetic Hypertensive Patients. Hypertension 2006; 48:271-7. [PMID: 16785331 DOI: 10.1161/01.hyp.0000230234.84356.36] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.0] [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: 02/04/2023]
Abstract
Lowering elevated blood pressure (BP) in diabetic hypertensive individuals decreases cardiovascular events. We questioned whether remodeling of resistance arteries from hypertensive diabetic patients would improve after 1 year of tight BP control with addition of either the angiotensin receptor blocker (ARB) valsartan or the β-blocker (BB) atenolol to previous therapy, which included angiotensin-converting enzyme inhibitors (ACEIs) and/or calcium channel blockers. Twenty-eight hypertensive type 2 diabetic patients treated with oral hypoglycemic and antihypertensive agents (not receiving ARBs or BBs) were randomly assigned to double-blind treatment for 1 year with valsartan (80 to 160 mg) or atenolol (50 to 100 mg) daily, added to previous therapy. Resistance arteries dissected from gluteal subcutaneous tissues were assessed on a pressurized myograph. After 1 year of treatment, systolic and diastolic BP and glycemia were equally well controlled in the valsartan and atenolol groups. Endothelium-dependent and independent relaxation did not change in the treated groups. After 1 year of treatment, resistance artery media:lumen ratio decreased in the valsartan group (7.9±0.5% after versus 9.8±0.6% before;
P
<0.05) but not in the atenolol-treated group (9.9±0.9% versus 10.6±1%;
P
value not significant). Artery walls from atenolol-treated patients became stiffer, with no change in the valsartan-treated patients. In conclusion, similar intensive BP control for 1 year with valsartan was associated with improved structure of resistance arteries in diabetic hypertensive patients, whereas vessels from atenolol-treated patients exhibited unchanged remodeling and a stiffer wall. The addition of ARBs but not BBs to antihypertensive medications that may include angiotensin-converting enzyme inhibitors and/or calcium channel blockers results in an improvement in resistance artery remodeling in diabetic hypertensive patients.
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Affiliation(s)
- Carmine Savoia
- Multidisciplinary Research Group on Hypertension, Clinical Research Institute of Montreal, University of Montreal, Montreal, Quebec, Canada
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Liu P, Pu Q, Su Z. Online Separation and Preconcentration of Gold and Palladium on Amidinothiourea Immobilized Glass Bead for Interference-Free Flame Atom Absorption Spectrometry Determination. J Anal Chem 2005. [DOI: 10.1007/s10809-005-0208-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Pu Q, Amiri F, Gannon P, Schiffrin EL. Dual angiotensin-converting enzyme/neutral endopeptidase inhibition on cardiac and renal fibrosis and inflammation in DOCA-salt hypertensive rats. J Hypertens 2005; 23:401-9. [PMID: 15662229 DOI: 10.1097/00004872-200502000-00023] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [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: 11/26/2022]
Abstract
OBJECTIVES The relative roles of angiotensin-converting enzyme (ACE) and neutral endopeptidase (NEP) inhibition on cardiac and renal fibrosis in deoxycorticosterone acetate (DOCA)-salt hypertensive rats were studied. METHODS The ACE/NEP inhibitor omapatrilat (40 mg/kg per day), the ACE inhibitor enalapril (10 mg/kg per day) and the NEP inhibitor CGS 25462(100 mg/kg per day) were administrated for 3 weeks to DOCA rats. Collagen was stained with Sirius red, and mediators of inflammation were identified by immunolabeling (vascular cell adhesion molecule, nuclear factor-kappaB, infiltrating ED-1-positive macrophages and monocyte chemotactic protein-1) or by western blot (platelet-endothelial cell adhesion molecule-1). RESULTS Elevated systolic blood pressure of DOCA rats was significantly reduced (P < 0.05) by omapatrilat and CGS 25462. Omapatrilat and CGS 25462 significantly (P < 0.05) decreased interstitial collagen density in the left ventricle of DOCA rats compared with untreated DOCA rats. Enalapril only decreased the subepicardial collagen of DOCA rats. Omapatrilat significantly (P < 0.05) decreased renal mesangial collagen deposition in DOCA rats. Cardiac and renal expression of surface adhesion molecules, nuclear factor-kappaB, monocyte chemotactic protein and ED-1-positive cells were decreased in omapatrilat-treated DOCA rats compared with untreated DOCA rats. Enalapril and CGS 25462 did not alter mesangial collagen of DOCA rats. CONCLUSIONS Dual ACE/NEP inhibition was more effective than ACE or NEP inhibition in decreasing inflammatory mediators, and improving cardiac and renal fibrosis. This suggests a role for NEP inhibition added to blockade of the renin-angiotensin system that may explain the greater efficacy of omapatrilat.
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Affiliation(s)
- Qian Pu
- Multidisciplinary Research Group on Hypertension, Clinical Research Institute of Montreal, University of Montreal, Quebec, Canada
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