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Liu Q, Jiang X, Tu W, Liu L, Huang Y, Xia Y, Xia X, Shi Y. Comparative efficiency of differential diagnostic methods for the identification of BRAF V600E gene mutation in papillary thyroid cancer (Review). Exp Ther Med 2024; 27:149. [PMID: 38476918 PMCID: PMC10928970 DOI: 10.3892/etm.2024.12437] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 02/02/2024] [Indexed: 03/14/2024] Open
Abstract
V-Raf murine sarcoma viral oncogene homolog B1 (BRAF) encodes a serine-threonine kinase. The V600E point mutation in the BRAF gene is the most common mutation, predominantly occurring in melanoma, and colorectal, thyroid and non-small cell lung cancer. Particularly in the context of thyroid cancer research, it is routinely employed as a molecular biomarker to assist in diagnosing and predicting the prognosis of papillary thyroid cancer (PTC), and to formulate targeted therapeutic strategies. Currently, several methods are utilized in clinical settings to detect BRAF V600E mutations in patients with PTC. However, the sensitivity and specificity of various detection techniques vary significantly, resulting in diverse detection outcomes. The present review highlights the advantages and disadvantages of the methods currently employed in medical practice, with the aim of guiding clinicians and researchers in selecting the most suitable detection approach for its high sensitivity, reproducibility and potential to develop targeted therapeutic regimens for patients with BRAF gene mutation-associated PTC.
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Affiliation(s)
- Qian Liu
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, Sichuan 610000, P.R. China
| | - Xue Jiang
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, Sichuan 610000, P.R. China
| | - Wenling Tu
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, Sichuan 610000, P.R. China
| | - Lina Liu
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, Sichuan 610000, P.R. China
| | - Ying Huang
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, Sichuan 610000, P.R. China
| | - Yuxiao Xia
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, Sichuan 610000, P.R. China
| | - Xuliang Xia
- Department of General Surgery, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, Sichuan 610000, P.R. China
| | - Yuhong Shi
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, Sichuan 610000, P.R. China
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Wu F, Zhang X, Zhang S, Zhang Y, Feng Y, Jiang Z, Shi Y, Zhang S, Tu W. Construction of an immune-related lncRNA-miRNA-mRNA regulatory network in radiation-induced esophageal injury in rats. Int Immunopharmacol 2023; 122:110606. [PMID: 37423154 DOI: 10.1016/j.intimp.2023.110606] [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: 04/19/2023] [Revised: 06/20/2023] [Accepted: 07/03/2023] [Indexed: 07/11/2023]
Abstract
Radiation-induced esophageal injury (RIEI) is an adverse reaction of radiation therapy in patients with esophageal cancer, lung cancer and other malignant tumors. Competitive endogenous RNA (ceRNA) network is known to play a significant role in the onset and progression of many diseases, but the exact mechanism of ceRNA in RIEI has not been fully elucidated. In this study, rat esophaguses were obtained after conducting irradiation under different doses (0 Gy, 25 Gy, 35 Gy). Total RNA was extracted and mRNA, lncRNA, circRNA, and miRNA sequencing was performed. Multiple dose-dependent differentially expressed RNAs (dd-DERs), including 870 lncRNAs, 82 miRNAs, 2478 mRNAs, were obtained through the integration of differential expression analysis and dose-dependent screening (35 Gy ≥ 25 Gy > 0 Gy, or 35 Gy ≤ 25 Gy < 0 Gy). Co-expression analysis and prediction of the binding site in dd-DER were conducted and 27 lncRNAs, 20 miRNAs, and 168 mRNAs were selected to construct a ceRNA network. As the immune microenvironment is crucial for RIEI progression, we constructed an immune-related ceRNA network consisting of 11 lncRNAs, 9 miRNAs, and 9 mRNAs. The expression levels of these immune-related RNAs were verified by RT-qPCR. Immune infiltration analysis showed that the RNAs in the immune-related ceRNA network were mainly associated with the proportion of monocytes, M2 macrophages, activated NK cells, and activated CD4+ memory T cells. Drug sensitivity analysis was conducted based on the expression levels of mRNAs in the immune-related ceRNA network, and small molecule drugs with preventive and therapeutic effects on RIEI were identified. In summary, an immune-related ceRNA network associated with RIEI progression was constructed in this study. The findings provide useful information on new potential targets for the prevention and treatment of RIEI.
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Affiliation(s)
- Fengping Wu
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu 610051, China
| | - Xiaolin Zhang
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu 610051, China
| | - Shuaijun Zhang
- Laboratory of Radiation Medicine, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China; Laboratory of Radiation Medicine, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Yuehua Zhang
- Laboratory of Radiation Medicine, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China; Laboratory of Radiation Medicine, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Yahui Feng
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu 610051, China; NHC Key Laboratory of Nuclear Technology Medical Transformation (Mianyang Central Hospital), Mianyang, China
| | - Zhiqiang Jiang
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu 610051, China
| | - Yuhong Shi
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu 610051, China
| | - Shuyu Zhang
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu 610051, China; Laboratory of Radiation Medicine, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China; Laboratory of Radiation Medicine, West China Second University Hospital, Sichuan University, Chengdu, China; NHC Key Laboratory of Nuclear Technology Medical Transformation (Mianyang Central Hospital), Mianyang, China.
| | - Wenling Tu
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu 610051, China; School of Bioscience and Technology, Chengdu Medical College, Chengdu, 610500, China; NHC Key Laboratory of Nuclear Technology Medical Transformation (Mianyang Central Hospital), Mianyang, China.
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Tu W, Song M, Fan X. Does resveratrol improve cognition in humans? A scientometric study to an in-depth review. CNS Neurosci Ther 2023. [PMID: 37248634 PMCID: PMC10401104 DOI: 10.1111/cns.14276] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 05/03/2023] [Accepted: 05/12/2023] [Indexed: 05/31/2023] Open
Abstract
AIM In order to understand the different processes and mechanisms of cognitive function and resveratrol (RES) as an active participant in pathophysiological events that affect cognitive function. METHODS First, the Web of Science (core collection) was selected as the data source. To ensure the comprehensiveness and accuracy of the search data, the index was selected as "SCI-EXPANDED", and the search formula was TS = resveratrol AND TS = ("cognitive" OR "memory" OR "cognition" OR "mood"). Next, details of authors, keywords, journals, countries, institutions, references, and more were analyzed by CiteSpace and VOSviewer software. Finally, we explored the mechanism by which RES could improve cognitive impairment, that involves healthy young adults, healthy elderly, post-menopausal women, and diseases involving Alzheimer's disease (AD), diabetes-related cognitive impairment, mental illness, post-stroke cognitive impairment, and neonatal hypoxic-ischemic injury. RESULTS 287 valid papers were obtained. The scientometric results demonstrated 287 papers used in this study came from 1601 authors from 443 organizations in 38 countries, published in 169 journals, and cited 13,680 literatures from 2431 journals. Depression, AD, cerebral ischemia, diabetic cognitive impairment, and cognitive function in the elderly are all keywords of the co-occurrence network. CONCLUSION This study supports the hypothesis that chronic RES intake may positively affect brain function. But it has become challenging to determine the optimal dose, time and duration of RES and improve the bioavailability of RES, which many researchers need to overcome.
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Affiliation(s)
- Wenling Tu
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Meiying Song
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiang Fan
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
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Tu W, Tang S, Yan T, Feng Y, Mo W, Song B, Wang J, Cheng S, Geng F, Shi Y, Yu D, Zhang S. Integrative multi-omic analysis of radiation-induced skin injury reveals the alteration of fatty acid metabolism in early response of ionizing radiation. J Dermatol Sci 2022; 108:178-186. [PMID: 36639278 DOI: 10.1016/j.jdermsci.2023.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 12/11/2022] [Accepted: 01/04/2023] [Indexed: 01/09/2023]
Abstract
BACKGROUND Radiation-induced skin injury is a serious concern during radiotherapy and accidental exposure to radiation. OBJECTIVE This study aims to investigate the molecular events in early response to ionizing radiation of skin tissues and underlying mechanism. METHODS Mice and rats were irradiated with an electron beam. Skin tissues were used for liquid chromatography-mass spectrometry (LC-MS)-based metabolomics, mRNA-Seq and single-cell RNA sequencing (scRNA-Seq). Human keratinocytes (HaCaT) and skin fibroblasts (WS1) were used for functional studies. RESULTS The integrated analysis of metabolomics and transcriptomics showed that 6 key fatty acid-associated metabolites, 9 key fatty acid-associated genes and multiple fatty acid-associated pathways were most obviously enriched and increased in the irradiated skins. Among them, acyl-CoA dehydrogenase very long chain (ACADVL) was investigated in greater detail due to its most obvious expression difference and significance in fatty acid metabolism. ScRNA-Seq of rat skin from irradiated individuals revealed that ACADVL was expressed in all subpopulations of skin tissues, with variations at different timepoints after radiation. Immunohistochemistry confirmed an increased ACADVL expression in the epidermis from human sample and various animal models, including monkeys, rats and mice. The knockdown of ACADVL increased the radiosensitivity of human keratinocytes and human skin fibroblasts. Silencing of ACADVL facilitated the expression of apoptosis and pyroptosis-related proteins following ionizing radiation. CONCLUSION This study illustrated that cutaneous fatty acid metabolism was altered in the early response of ionizing radiation, and fatty acid metabolism-associated ACADVL is involved in radiation-induced cell death.
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Affiliation(s)
- Wenling Tu
- The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China; School of Bioscience and Technology, Chengdu Medical College, Chengdu, China; NHC Key Laboratory of Nuclear Technology Medical Transformation (Mianyang Central Hospital), Mianyang, China
| | - Shaokai Tang
- Laboratory of Radiation Medicine, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Tao Yan
- Laboratory of Radiation Medicine, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Yahui Feng
- The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
| | - Wei Mo
- School of Radiation Medicine and Protection, State Key Laboratory of Radiation Medicine, Soochow University, Suzhou, China
| | - Bin Song
- Laboratory of Radiation Medicine, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Jinlong Wang
- School of Bioscience and Technology, Chengdu Medical College, Chengdu, China
| | - Shuanghua Cheng
- The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
| | - Fenghao Geng
- Laboratory of Radiation Medicine, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Yuhong Shi
- The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
| | - Daojiang Yu
- The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
| | - Shuyu Zhang
- Laboratory of Radiation Medicine, West China Second University Hospital, Sichuan University, Chengdu, China; The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China; Laboratory of Radiation Medicine, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China; NHC Key Laboratory of Nuclear Technology Medical Transformation (Mianyang Central Hospital), Mianyang, China.
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Lin Y, Lee Y, Chang Y, Huang H, Hong Y, Aala W, Tu W, Tsai M, Chou Y, Hsu C. 312 Genetic Diagnosis of Rubinstein–Taybi Syndrome With Multiplex Ligation-Dependent Probe Amplification (MLPA) and Whole-Exome Sequencing (WES): Case Series With a Novel CREBBP Variant. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.09.324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Yao J, Zhang J, Wang J, Lai Q, Yuan W, Liu Z, Cheng S, Feng Y, Jiang Z, Shi Y, Jiang S, Tu W. Transcriptome Profiling Unveils a Critical Role of IL-17 Signaling-Mediated Inflammation in Radiation-Induced Esophageal Injury in Rats. Dose Response 2022; 20:15593258221104609. [PMID: 35677348 PMCID: PMC9168911 DOI: 10.1177/15593258221104609] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 04/29/2022] [Accepted: 05/13/2022] [Indexed: 02/05/2023] Open
Abstract
Elucidation of the molecular mechanisms involving the initiation and progression
of radiation-induced esophageal injury (RIEI) is important for prevention and
treatment. Despite ongoing advances, the underlying mechanisms controlling RIEI
remain largely unknown. In the present study, RNA-seq was performed to
characterize mRNA profiles of the irradiated rat esophagus exposed to 0, 25, or
35 Gy irradiation. Bioinformatics analyses including dose-dependent
differentially expressed genes (DEGs), Gene Ontology (GO), Kyoto Encyclopedia of
Gene and Genome (KEGG) pathway, protein-protein interaction (PPI) network, and
immune infiltration were performed. 134 DEGs were screened out with a
dose-dependent manner (35 Gy > 25 Gy > control, or 35 Gy < 25 Gy <
control). GO and KEGG analyses showed that the most significant mechanism was
IL-17 signaling-mediated inflammatory response. 5 hub genes, Ccl11, Cxcl3,
Il17a, S100a8, and S100a9, were identified through the intersection of the DEGs
involved in inflammatory response, IL-17 pathway, and PPI network. Additionally,
immune infiltration analysis showed the activation of macrophages, monocytes, T
cells, NKT cells, and neutrophils, among which macrophages, monocytes, and
neutrophils might be the main sources of S100a8 and S100a9. Thus, these findings
further our understanding on the molecular biology of RIEI and may help develop
more effective therapeutic strategies.
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Affiliation(s)
- Jia Yao
- West China Biomedical Big Data Center, West China Hospital, Sichuan University, Chengdu, China
| | - Jinkang Zhang
- Department of Nuclear Medicine, the Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
| | - Jinlong Wang
- Department of Nuclear Medicine, the Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
| | - Qian Lai
- Department of Nuclear Medicine, the Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
| | - Weijun Yuan
- Department of Nuclear Medicine, the Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
| | - Zhongyu Liu
- West China Biomedical Big Data Center, West China Hospital, Sichuan University, Chengdu, China
| | - Shuanghua Cheng
- School of Bioscience and Technology, Chengdu Medical College, Chengdu, China
| | - Yahui Feng
- School of Bioscience and Technology, Chengdu Medical College, Chengdu, China
| | - Zhiqiang Jiang
- School of Bioscience and Technology, Chengdu Medical College, Chengdu, China
| | - Yuhong Shi
- School of Bioscience and Technology, Chengdu Medical College, Chengdu, China
| | - Sheng Jiang
- School of Bioscience and Technology, Chengdu Medical College, Chengdu, China
| | - Wenling Tu
- Department of Nuclear Medicine, the Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
- School of Bioscience and Technology, Chengdu Medical College, Chengdu, China
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Liu L, Shi Y, Lai Q, Huang Y, Jiang X, Liu Q, Huang Y, Xia Y, Xu D, Jiang Z, Tu W. Construction of a Signature Model to Predict the Radioactive Iodine Response of Papillary Thyroid Cancer. Front Endocrinol (Lausanne) 2022; 13:865909. [PMID: 35634509 PMCID: PMC9132198 DOI: 10.3389/fendo.2022.865909] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Accepted: 03/28/2022] [Indexed: 12/04/2022] Open
Abstract
Papillary thyroid cancer (PTC) accounts for about 90% of thyroid cancer. There are approximately 20%-30% of PTC patients showing disease persistence/recurrence and resistance to radioactive iodine (RAI) treatment. For these PTC patients with RAI refractoriness, the prognosis is poor. In this study, we aimed to establish a comprehensive prognostic model covering multiple signatures to increase the predictive accuracy for progression-free survival (PFS) of PTC patients with RAI treatment. The expression profiles of mRNAs and miRNAs as well as the clinical information of PTC patients were extracted from TCGA and GEO databases. A series of bioinformatics methods were successfully applied to filtrate a two-RNA model (IPCEF1 and hsa-mir-486-5p) associated with the prognosis of RAI-therapy. Finally, the RNA-based risk score was calculated based on the Cox coefficient of the individual RNA, which achieved good performances by the time-dependent receiver operating characteristic (tROC) curve and PFS analyses. Furthermore, the predictive power of the nomogram, integrated with the risk score and clinical parameters (age at diagnosis and tumor stage), was assessed by tROC curves. Collectively, our study demonstrated high precision in predicting the RAI response of PTC patients.
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Affiliation(s)
- Lina Liu
- Department of Nuclear Medicine, the Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
| | - Yuhong Shi
- Department of Nuclear Medicine, the Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
| | - Qian Lai
- School of Bioscience and Technology, Chengdu Medical College, Chengdu, China
| | - Yuan Huang
- School of Bioscience and Technology, Chengdu Medical College, Chengdu, China
| | - Xue Jiang
- Department of Nuclear Medicine, the Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
| | - Qian Liu
- Department of Nuclear Medicine, the Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
| | - Ying Huang
- Department of Nuclear Medicine, the Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
| | - Yuxiao Xia
- Department of Nuclear Medicine, the Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
| | - Dongkun Xu
- Department of Nuclear Medicine, the Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
| | - Zhiqiang Jiang
- Department of General Surgery, the Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
| | - Wenling Tu
- Department of Nuclear Medicine, the Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
- School of Bioscience and Technology, Chengdu Medical College, Chengdu, China
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Tu W, Feng Y, Lai Q, Wang J, Yuan W, Yang J, Jiang S, Wu A, Cheng S, Shao J, Li J, Jiang Z, Tang H, Shi Y, Zhang S. Metabolic Profiling Implicates a Critical Role of Cyclooxygenase-2-Mediated Arachidonic Acid Metabolism in Radiation-Induced Esophageal Injury in Rats. Radiat Res 2022; 197:480-490. [PMID: 35172004 DOI: 10.1667/rade-20-00240.1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 01/05/2022] [Indexed: 11/03/2022]
Abstract
Radiation-induced esophageal injury (RIEL) is a major dose-limiting complication of radiotherapy, especially for esophageal and thoracic cancers. RIEL is a multi-factorial and multi-step process, which is regulated by a complex network of DNA, RNA, protein and metabolite. However, it is unclear which esophageal metabolites are altered by ionizing radiation and how these changes affect RIEL progression. In this work, we established a rat model of RIEL with 0-40 Gy X-ray irradiation. Esophageal irradiation using ≥25 Gy induced significant changes to rats, such as body weight, food intake, water intake and esophageal structure. The metabolic changes and related pathways of rat esophageal metabolites were investigated by liquid chromatography-mass spectrometry (LC-MS). One hundred eighty metabolites showed an up-regulation in a dose-dependent manner (35 Gy ≥ 25 Gy > controls), and 199 metabolites were downregulated with increasing radiation dose (35 Gy ≤ 25 Gy < controls). The KEGG analysis showed that ionizing radiation seriously disrupted multiple metabolic pathways, and arachidonic acid metabolism was the most significantly enriched pathway. 20 metabolites were dysregulated in arachidonic acid metabolism, including up-regulation of five prostaglandins (PGA2, PGJ2, PGD2, PGH2, and PGI2) in 25 or 35 Gy groups. Cyclooxygenase-2 (COX-2), the key enzyme in catalyzing the biosynthesis of prostaglandins from arachidonic acid, was highly expressed in the esophagus of irradiated rats. Additionally, receiver operating characteristic (ROC) curve analysis revealed that PGJ2 may serve as a promising tissue biomarker for RIEL diagnosis. Taken together, these findings indicate that ionizing radiation induces esophageal metabolic alterations, which advance our understanding of the pathophysiology of RIEL from the perspective of metabolism.
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Affiliation(s)
- Wenling Tu
- The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, 610051, China.,School of Bioscience and Technology, Chengdu Medical College, Chengdu, 610500, China
| | - Yahui Feng
- The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, 610051, China
| | - Qian Lai
- School of Bioscience and Technology, Chengdu Medical College, Chengdu, 610500, China
| | - Jinlong Wang
- School of Bioscience and Technology, Chengdu Medical College, Chengdu, 610500, China
| | - Weijun Yuan
- School of Bioscience and Technology, Chengdu Medical College, Chengdu, 610500, China
| | - Jingxuan Yang
- School of Bioscience and Technology, Chengdu Medical College, Chengdu, 610500, China
| | - Sheng Jiang
- The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, 610051, China
| | - Ailing Wu
- The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, 610051, China
| | - Shuanghua Cheng
- The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, 610051, China
| | - Jichun Shao
- The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, 610051, China
| | - Jingyi Li
- The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, 610051, China.,School of Bioscience and Technology, Chengdu Medical College, Chengdu, 610500, China
| | - Zhiqiang Jiang
- The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, 610051, China
| | - Hui Tang
- West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | - Yuhong Shi
- The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, 610051, China
| | - Shuyu Zhang
- The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, 610051, China.,West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, 610041, China
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Feng Y, Gao Y, Tu W, Feng Y, Cao J, Zhang S. Serum Metabolomic Analysis of Radiation-Induced Lung Injury in Rats. Dose Response 2022; 20:15593258211067060. [PMID: 35069051 PMCID: PMC8753076 DOI: 10.1177/15593258211067060] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 11/29/2021] [Indexed: 11/30/2022] Open
Abstract
Radiation-induced lung injury is a common complication of radiotherapy for lung cancer, breast cancer, esophageal cancer, and thymoma. This study aims to illustrate biomarkers of radiation-induced lung injury and its potential mechanism through the study of metabolomic alterations in serum of Sprague-Dawley rats with different radiation doses. Serum from 0, 10, or 20 Gy irradiated rats were collected and subjected to gas chromatography-mass spectrometry. The result showed that there were 23 dysregulated metabolites between the 10 Gy irradiation group and the 0 Gy control group, whereas 36 preferential metabolites were found between the 20 Gy irradiated rat serum and the control groups. Among them, there were 19 common differential metabolites in the 2 irradiation groups, including 3 downregulated (benzyl thiocyanate, carbazole, and N-formyl-L-methionine) and 16 upregulated metabolites. We further analyzed the metabolic pathways of different metabolites; the results showed that there were 3 significant enrichment pathways in the 10 Gy vs 0 Gy group and 7 significant enrichment pathways in the 20 Gy vs 0 Gy group. Among them, taurine and hypotaurine metabolism, riboflavin metabolism, and glyoxylate and dicarboxylate metabolism were the common metabolic enrichment pathways of the 10 Gy vs 0 Gy group and the 20 Gy vs 0 Gy group.
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Affiliation(s)
- Yahui Feng
- The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
| | - Yiying Gao
- School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou, China
- Sichuan Center for Disease Control and Prevention, Chengdu, China
| | - Wenling Tu
- The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
| | - Yang Feng
- School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou, China
| | - Jianping Cao
- School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou, China
| | - Shuyu Zhang
- The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
- West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
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Tu W, Xiao Y, Wang Y, Luo R, Chen ZS. Idecabtagene vicleucel for relapsed/refractory multiple myeloma: a review of recent advances. Drugs Today (Barc) 2022; 58:117-132. [DOI: 10.1358/dot.2022.58.3.3381592] [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: 11/03/2022]
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Xia Y, Jiang X, Huang Y, Liu Q, Huang Y, Zhang B, Mei Z, Xu D, Shi Y, Tu W. Construction of a Tumor Immune Microenvironment-Related Prognostic Model in BRAF-Mutated Papillary Thyroid Cancer. Front Endocrinol (Lausanne) 2022; 13:895428. [PMID: 35757399 PMCID: PMC9215106 DOI: 10.3389/fendo.2022.895428] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Accepted: 05/05/2022] [Indexed: 12/14/2022] Open
Abstract
BRAF mutation is a representative oncogenic mutation, with a frequency of 60% in papillary thyroid carcinoma (PTC), but the reasons for the poor prognosis and more aggressive course of BRAF-mutated PTC are controversial. Tumor immune microenvironment (TIME) is an essential factor permitting the development and progression of malignancy, but whether TIME participates in the prognosis of BRAF-mutated PTC has not yet been reported. The primary goal of the present study was to provide a comprehensive TIME-related prognostic model to increase the predictive accuracy of progression-free survival (PFS) in patients with BRAF-mutated PTC. In this study, we analyzed the mRNA-seq data and corresponding clinical data of PTC patients obtained from the TCGA database. By calculating the TIME scores (immune score, stromal score and ESTIMATE score), the BRAF mutation group (n=237) was dichotomized into the high- and low-score groups. By functional analysis of differentially expressed genes (DEGs) in different high/low score groups, we identified 2 key TIME-related genes, HTR3A and NIPAL4, which affected PFS in BRAF-mutated PTC. A risk scoring system was developed by multivariate Cox analysis based on the abovementioned 2 TIME-related genes. Then, the BRAF-mutated cohort was divided into the high- and low-risk groups using the median risk score as a cutoff. A high risk score correlated positively with a higher HTR3A/NIPAL4 expression level but negatively with PFS in BRAF-mutated PTC. Ultimately, a nomogram was constructed by combining risk score with clinical parameter (Tumor stage), and the areas under the ROC curve (AUCs) of the nomogram for predicting 1-, 3- and 5-year PFS were then calculated and found to be 0.694, 0.707 and 0.738, respectively, indicating the improved accuracy and clinical utility of the nomogram versus the risk score model in the BRAF-mutated PTC cohort. Moreover, we determined the associations between prognostic genes or risk score and immune cell infiltration by two-way ANOVA. In the high-risk score, high HTR3A expression, and high NIPAL4 expression groups, higher infiltration of immune cells was found. Collectively, these findings confirm that the nomogram is effective in predicting the outcome of BRAF-mutated PTC and will add a spatial dimension to the developing risk stratification system.
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Affiliation(s)
- Yuxiao Xia
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
| | - Xue Jiang
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
| | - Yuan Huang
- School of Bioscience and Technology, Chengdu Medical College, Chengdu, China
| | - Qian Liu
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
| | - Yin Huang
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
| | - Bo Zhang
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
| | - Zhanjun Mei
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
| | - Dongkun Xu
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
| | - Yuhong Shi
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
- *Correspondence: Wenling Tu, ; Yuhong Shi,
| | - Wenling Tu
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
- School of Bioscience and Technology, Chengdu Medical College, Chengdu, China
- *Correspondence: Wenling Tu, ; Yuhong Shi,
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12
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Zhang K, Zhang T, Yang Y, Tu W, Huang H, Wang Y, Chen Y, Pan K, Chen Z. N 6-methyladenosine-mediated LDHA induction potentiates chemoresistance of colorectal cancer cells through metabolic reprogramming. Am J Cancer Res 2022; 12:4802-4817. [PMID: 35832094 PMCID: PMC9254245 DOI: 10.7150/thno.73746] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 05/26/2022] [Indexed: 11/21/2022] Open
Abstract
Background: Chemoresistance to 5-fluorouracil (5-FU) is a major barrier to influence the treatment efficiency of colorectal cancer (CRC) patients, while the precise molecular mechanisms underlying 5-FU resistance remain to be fully elucidated. Methods: The metabolic profiles including ATP generation, glucose consumption, lactate generation, and oxygen consumption rate (OCR) in 5-FU resistant CRC cells were compared with those in their parental cells. Subsequently, a series of in vitro and in vivo experiments were carried out to investigate the mechanisms responsible for metabolic reprogramming of 5-FU resistant CRC cells. Results: We found that 5-FU resistant CRC cells showed increased levels of ATP generation, glucose consumption, lactate generation, and OCR as compared with those in their parental cells. Further, increased levels of mRNA N6-methyladenosine (m6A) and methyltransferase-like 3 (METTL3) were observed in 5-FU resistant CRC cells. Inhibition or knockdown of METTL3 can suppress glycolysis and restore chemosensitivity of 5-FU resistant CRC cells. Mechanistically, METTL3 enhances the expression of LDHA, which catalyzes the conversion of pyruvate to lactate, to trigger glycolysis and 5-FU resistance. METTL3 can increase the transcription of LDHA via stabilizing mRNA of hypoxia-inducible factor (HIF-1α), further, METTL3 also triggers the translation of LDHA mRNA via methylation of its CDS region and recruitment of YTH domain-containing family protein 1 (YTHDF1). Targeted inhibition of METTL3/LDHA axis can significantly increase the in vitro and in vivo 5-FU sensitivity of CRC cells. Conclusion: Our study indicates that METTL3/LDHA axis-induced glucose metabolism is a potential therapy target to overcome 5-FU resistance in CRC cells.
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13
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Tu W, Hong Y, Huang M, Chen M, Gan H. Effect of kaempferol on hedgehog signaling pathway in rats with --chronic atrophic gastritis - Based on network pharmacological screening and experimental verification. Biomed Pharmacother 2021; 145:112451. [PMID: 34839256 DOI: 10.1016/j.biopha.2021.112451] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 11/11/2021] [Accepted: 11/16/2021] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVE The effect of active ingredients of Chaishaoliujun Decoction (CD) on chronic atrophic gastritis (CAG) was screened by network pharmacological method and verified by preliminary experiment. METHODS Firstly, the active ingredients and drug targets of CD were retrieved in TCMSP database; CAG-related targets from PharmGkb, OMIM, GeneCards and DrugBank databases were collected as well. Secondly, the drug targets and disease targets were mapped to obtain the intersection targets. PPI network and active ingredient-common target network were constructed for the intersection targets obtained and KEGG enrichment analysis was also carried out. Finally, the core active ingredient (kaempferol), effective targets (IL-1β、IL-6) and hedgehog signaling pathway were verified by animal experiments. RESULTS There were 137 active ingredients, 243 potential target so and 48 intersection targets with CAG in CD. 147 KEGG enrichment pathways were obtained, mainly involving JAK/STAT signaling pathway, PI3K/Akt signaling pathway, hedgehog signaling pathway, etc. The results of animal experiments showed: The content of IL-1β and IL-6 in model group was significantly increased compared with the normal group, while the mRNA and protein expressions of Shh, Ptch1 and Gli1 were also significantly decreased (P < 0.05); compared with model group, the content of IL-1β and IL-6 in the vitacoenzyme group, the CD group and the kaempferol group were significantly decreased, while the mRNA and protein expressions of Shh, Ptch1 and Gli1 were significantly increased (P < 0.05). CONCLUSION Kaempferol, the active ingredient of CD, could reduce the levels of IL-6 and IL-1β by regulating hedgehog signaling pathway so as to play a role in the treatment of CAG. Hence this paper could provide the methodological basis and theoretical basis for further revealing the pharmacological mechanism of CD.
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Affiliation(s)
- Wenling Tu
- College of Traditional Chinese Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
| | - Yinjie Hong
- College of Traditional Chinese Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
| | - Miaoan Huang
- College of Traditional Chinese Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
| | - Meimei Chen
- College of Traditional Chinese Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
| | - Huijuan Gan
- College of Traditional Chinese Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China.
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14
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Chen G, Han Y, Zhang H, Tu W, Zhang S. Radiotherapy-Induced Digestive Injury: Diagnosis, Treatment and Mechanisms. Front Oncol 2021; 11:757973. [PMID: 34804953 PMCID: PMC8604098 DOI: 10.3389/fonc.2021.757973] [Citation(s) in RCA: 13] [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: 08/13/2021] [Accepted: 10/20/2021] [Indexed: 12/12/2022] Open
Abstract
Radiotherapy is one of the main therapeutic methods for treating cancer. The digestive system consists of the gastrointestinal tract and the accessory organs of digestion (the tongue, salivary glands, pancreas, liver and gallbladder). The digestive system is easily impaired during radiotherapy, especially in thoracic and abdominal radiotherapy. In this review, we introduce the physical classification, basic pathogenesis, clinical characteristics, predictive/diagnostic factors, and possible treatment targets of radiotherapy-induced digestive injury. Radiotherapy-induced digestive injury complies with the dose-volume effect and has a radiation-based organ correlation. Computed tomography (CT), MRI (magnetic resonance imaging), ultrasound (US) and endoscopy can help diagnose and evaluate the radiation-induced lesion level. The latest treatment approaches include improvement in radiotherapy (such as shielding, hydrogel spacers and dose distribution), stem cell transplantation and drug administration. Gut microbiota modulation may become a novel approach to relieving radiogenic gastrointestinal syndrome. Finally, we summarized the possible mechanisms involved in treatment, but they remain varied. Radionuclide-labeled targeting molecules (RLTMs) are promising for more precise radiotherapy. These advances contribute to our understanding of the assessment and treatment of radiation-induced digestive injury.
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Affiliation(s)
- Guangxia Chen
- Department of Gastroenterology, The First People's Hospital of Xuzhou, Xuzhou Municipal Hospital Affiliated to Xuzhou Medical University, Xuzhou, China
| | - Yi Han
- Department of Gastroenterology, The First People's Hospital of Xuzhou, Xuzhou Municipal Hospital Affiliated to Xuzhou Medical University, Xuzhou, China
| | - Haihan Zhang
- Department of Gastroenterology, The First People's Hospital of Xuzhou, Xuzhou Municipal Hospital Affiliated to Xuzhou Medical University, Xuzhou, China
| | - Wenling Tu
- The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
| | - Shuyu Zhang
- The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China.,West China Second University Hospital, Sichuan University, Chengdu, China
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15
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Lao Z, Bi F, Fan W, Xu X, Tu W, Shi H. Non-Coplanar vs. Coplanar Intensity-Modulated Radiation Therapy (IMRT) for Protection of Lip and Buccal Mucosa. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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16
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Hou P, Tu W, Wang H, Yang H, Huang H, Lin C, McGrath J, Hsu C. LB732 Intravenous gentamicin therapy in adult junctional and recessive dystrophic Epidermolysis Bullosa with nonsense mutations does not result in sustained clinical improvement. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.07.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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17
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Cao J, Zhong L, Feng Y, Qian K, Xiao Y, Wang G, Tu W, Yue L, Zhang Q, Yang H, Jiao Y, Zhu W, Cao J. Activated Beta-Catenin Signaling Ameliorates Radiation-Induced Skin Injury by Suppressing Marvel D3 Expression. Radiat Res 2021; 195:173-190. [PMID: 33045079 DOI: 10.1667/rade-20-00050.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 09/04/2020] [Indexed: 11/03/2022]
Abstract
Radiation-induced skin injury remains a serious concern for cancer radiotherapy, radiation accidents and occupational exposure, and the damage mainly occurs due to apoptosis and reactive oxygen species (ROS) generation. There is currently no effective treatment for this disorder. The β-catenin signaling pathway is involved in the repair and regeneration of injured tissues. However, the role of the β-catenin signaling pathway in radiation-induced skin injury has not been reported. In this study, we demonstrated that the β-catenin signaling pathway was activated in response to radiation and that its activation by Wnt3a, a ligand-protein involved in the β-catenin signaling pathway, inhibited apoptosis and the production of ROS in irradiated human keratinocyte HaCaT cells and skin fibroblast WS1 cells. Additionally, Wnt3a promoted cell migration after irradiation. In a mouse model of full-thickness skin wounds combined with total-body irradiation, Wnt3a was shown to facilitate skin wound healing. The results from RNA-Seq revealed that 24 genes were upregulated and 154 were downregulated in Wnt3a-treated irradiated skin cells, and these dysregulated genes were mainly enriched in the tight junction pathway. Among them, Marvel D3 showed the most obvious difference. We further found that the activated β-catenin signaling pathway stimulated the phosphorylation of JNK by silencing Marvel D3. Treatment of irradiated cells with SP600125, a JNK inhibitor, augmented ROS production and impeded cell migration. Furthermore, treatment with Wnt3a or transfection with Marvel D3-specific siRNAs could reverse the above effects. Taken together, these findings illustrate that activated β-catenin signaling stimulates the activation of JNK by negatively regulating Marvel D3 to ameliorate radiation-induced skin injury.
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Affiliation(s)
- Jinming Cao
- School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou 215123 China.,State Key Laboratory of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123 China
| | - Li Zhong
- School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou 215123 China.,State Key Laboratory of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123 China
| | - Yang Feng
- School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou 215123 China.,State Key Laboratory of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123 China
| | - Kun Qian
- School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou 215123 China.,State Key Laboratory of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123 China
| | - Yuji Xiao
- School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou 215123 China.,State Key Laboratory of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123 China
| | - Gaoren Wang
- Nantong Tumor Hospital, Nantong University, Nantong 226000 China
| | - Wenling Tu
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu 610051 China
| | - Ling Yue
- School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou 215123 China.,State Key Laboratory of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123 China
| | - Qi Zhang
- School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou 215123 China.,State Key Laboratory of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123 China
| | - Hongying Yang
- School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou 215123 China.,State Key Laboratory of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123 China
| | - Yang Jiao
- School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou 215123 China.,State Key Laboratory of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123 China
| | - Wei Zhu
- School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou 215123 China.,State Key Laboratory of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123 China
| | - Jianping Cao
- School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou 215123 China.,State Key Laboratory of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123 China
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18
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Jella PK, Chen Y, Tu W, Makam S, Beckius S, Hamtaei E, Hsu CCT, Haacke EM. Quantifying Tissue Properties of the Optic Radiations Using Strategically Acquired Gradient Echo Imaging and Enhancing the Contrast Using Diamagnetic Susceptibility Weighted Imaging. AJNR Am J Neuroradiol 2021; 42:285-287. [PMID: 33361376 DOI: 10.3174/ajnr.a6897] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 09/18/2020] [Indexed: 11/07/2022]
Abstract
Visualization of the optic radiations is of clinical importance for diagnosing many diseases and depicting their anatomic structures for neurosurgical interventions. In this study, we quantify proton density, T1, T2*, and susceptibility of the optic radiation fiber bundles in a series of 10 healthy control participants using strategically acquired gradient echo imaging. Furthermore, we introduce a novel means to enhance the contrast of the optic radiations using diamagnetic susceptibility weighted imaging.
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Affiliation(s)
- P K Jella
- From the Department of Radiology (P.K.J., S.B., E.M.H.)
| | - Y Chen
- Neurology (Y.C.), Wayne State University School of Medicine, Detroit, Michigan
| | - W Tu
- Shanghai World Foreign Language Academy (W.T.), Shanghai, China
| | - S Makam
- Detroit Medical Center (S.M.), Detroit, Michigan
| | - S Beckius
- From the Department of Radiology (P.K.J., S.B., E.M.H.)
| | - E Hamtaei
- MR Innovations Inc. (E.H., E.M.H.), Bingham Farms, Michigan
| | - C C-T Hsu
- Division of Neuroradiology, Department of Medical Imaging (C.C.-T.H.), Gold Coast University Hospital, Southport, Australia
| | - E M Haacke
- From the Department of Radiology (P.K.J., S.B., E.M.H.)
- MR Innovations Inc. (E.H., E.M.H.), Bingham Farms, Michigan
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19
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Wang Y, Tu W, Tang Y, Zhang S. Prevention and treatment for radiation-induced skin injury during radiotherapy. Radiation Medicine and Protection 2020. [DOI: 10.1016/j.radmp.2020.02.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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20
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Tu W, Yao J, Mei Z, Jiang X, Shi Y. Microarray Data of Lacrimal Gland Implicates Dysregulated Protein Processing in Endoplasmic Reticulum in Graves' Ophthalmopathy. Front Endocrinol (Lausanne) 2020; 11:571151. [PMID: 33613444 PMCID: PMC7888479 DOI: 10.3389/fendo.2020.571151] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 12/18/2020] [Indexed: 12/18/2022] Open
Abstract
Graves' ophthalmopathy (GO) has become one of the most common orbital diseases. Although some evidences announced the potential mechanism of pathological changes in extraocular muscle and orbital adipose tissue, little is known about that in lacrimal enlargement of GO patients. Thus, gene expression profiles of lacrimal gland derived from GO patients and normal controls were investigated using the microarray datasets of GSE105149 and GSE58331. The raw data and annotation files of GSE105149 and GSE58331 were downloaded from Gene Expression Omnibus (GEO) database. Bioinformatics including differentially expressed genes (DEGs), Gene Ontology, Kyoto Encyclopedia of Gene and Genome (KEGG) pathway, protein-protein interaction (PPI) network construction, hub gene identification, and gene set variation analysis (GSVA) were successively performed. A total of 173 overlapping DEGs in GSE105149 and GSE58331 were screened out, including 20 up-regulated and 153 down-regulated genes. Gene Ontology, KEGG and GSVA analyses of these DEGs showed that the most significant mechanism was closely associated with endoplasmic reticulum (ER). Moreover, we identified 40 module genes and 13 hub genes which were also enriched in the ER-associated terms and pathways. Among the hub genes, five genes including HSP90AA1, HSP90B1, DNAJC10, HSPA5, and CANX may be involved in the dysfunction of protein processing in ER. Taken together, our observations revealed a dysregulated gene network which is essential for protein processing in ER in GO patients. These findings provided a potential mechanism in the progression of lacrimal enlargement in GO patients, as a new insight into GO pathogenesis.
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Affiliation(s)
- Wenling Tu
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
- School of Bioscience and Technology, Chengdu Medical College, Chengdu, China
| | - Jia Yao
- Research and Development Center, Chengdu SuAn Technology Co., Ltd, Chengdu, China
| | - Zhanjun Mei
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
| | - Xue Jiang
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
| | - Yuhong Shi
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
- *Correspondence: Yuhong Shi,
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21
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Liu Q, Lin J, Han J, Zhang Y, Lu J, Tu W, Zhao Y, Guo G, Chu H, Pu W, Liu J, Ma Y, Chen X, Zhang R, Gu J, Zou H, Jin L, Wu W, Ren S, Wang J. Immunoglobulin G galactosylation levels are decreased in systemic sclerosis patients and differ according to disease subclassification. Scand J Rheumatol 2019; 49:146-153. [PMID: 31538512 DOI: 10.1080/03009742.2019.1641615] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Q Liu
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
| | - J Lin
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - J Han
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Y Zhang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - J Lu
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - W Tu
- Division of Rheumatology, Shanghai TCM-Integrated Hospital, Shanghai, China
| | - Y Zhao
- Division of Rheumatology, Shanghai TCM-Integrated Hospital, Shanghai, China
| | - G Guo
- Department of Rheumatology and Immunology, Yiling Affiliated Hospital of Hebei Medical University, Shijiazhuang, China
| | - H Chu
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
| | - W Pu
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
| | - J Liu
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
| | - Y Ma
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
| | - X Chen
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
| | - R Zhang
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
| | - J Gu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - H Zou
- Division of Rheumatology, Huashan Hospital, Fudan University, Shanghai, China
| | - L Jin
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
- Human Phenome Institute, Fudan University, Shanghai, China
| | - W Wu
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
- Institute of Rheumatology, Immunology and Allergy, Fudan University, Shanghai, China
- Department of Dermatology, Jing’an District Central Hospital, Shanghai, China
| | - S Ren
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - J Wang
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
- Human Phenome Institute, Fudan University, Shanghai, China
- Institute of Rheumatology, Immunology and Allergy, Fudan University, Shanghai, China
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22
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Adrjanowicz K, Winkler R, Chat K, Duarte DM, Tu W, Unni AB, Paluch M, Ngai KL. Study of Increasing Pressure and Nanopore Confinement Effect on the Segmental, Chain, and Secondary Dynamics of Poly(methylphenylsiloxane). Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00473] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- K. Adrjanowicz
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
- Silesian Center for Education and Interdisciplinary Research (SMCEBI), 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - R. Winkler
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
- Silesian Center for Education and Interdisciplinary Research (SMCEBI), 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - K. Chat
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
- Silesian Center for Education and Interdisciplinary Research (SMCEBI), 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - D. M. Duarte
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
- Silesian Center for Education and Interdisciplinary Research (SMCEBI), 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - W. Tu
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
- Silesian Center for Education and Interdisciplinary Research (SMCEBI), 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - A. B. Unni
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
- Silesian Center for Education and Interdisciplinary Research (SMCEBI), 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - M. Paluch
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
- Silesian Center for Education and Interdisciplinary Research (SMCEBI), 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - K. L. Ngai
- CNR-IPCF, Largo Bruno Pontecorvo 3, I-56127 Pisa, Italy
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Lu Y, Liao S, Tu W, Yang B, Liu S, Pei X, Tao D, Lu Y, Ma Y, Yang Y, Liu Y. DNA demethylation facilitates the specific transcription of the mouse X-linked Tsga8 gene in round spermatids†. Biol Reprod 2019; 100:994-1007. [PMID: 30541061 DOI: 10.1093/biolre/ioy255] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 10/08/2018] [Accepted: 12/11/2018] [Indexed: 02/05/2023] Open
Abstract
Some X-linked genes necessary for spermiogenesis are specifically activated in the postmeiotic germ cells. However, the regulatory mechanism about this activation is not clearly understood. Here, we examined the potential mechanism controlling the transcriptional activation of the mouse testis specific gene A8 (Tsga8) gene in round spermatids. We observed that the Tsga8 expression was negatively correlated with the methylation level of the CpG sites in its core promoter. During spermatogenesis, the Tsga8 promoter was methylated in spermatogonia, and then demethylated in spermatocytes. The demethylation status of Tsga8 promoter was maintained through the postmeiotic germ cells, providing a potentially active chromatin for Tsga8 transcription. In vitro investigation showed that the E12 and Spz1 transcription factors can enhance the Tsga8 promoter activity by binding to the unmethylated E-box motif within the Tsga8 promoter. Additionally, the core Tsga8 promoter drove green fluorescent protein (GFP) expression in the germ cells of Tsga8-GFP transgenic mice, and the GFP expression pattern was similar to that of endogenous Tsga8. Moreover, the DNA methylation profile of the Tsga8-promoter-driven transgene was consistent with that of the endogenous Tsga8 promoter, indicating the existence of a similar epigenetic modification for the Tsga8 promoter to ensure its spatiotemporal expression in vivo. Taken together, this study reports the details of a regulatory mechanism that includes DNA methylation and transcription factors to mediate the postmeiotic expression of an X-linked gene.
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Affiliation(s)
- Yongjie Lu
- Department of Medical Genetics and Division of Human Morbid Genomics, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan Province, China
| | - Shunyao Liao
- Diabetic Center and Institute of Transplantation, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan Province, China
| | - Wenling Tu
- Department of Medical Genetics and Division of Human Morbid Genomics, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan Province, China
| | - Bo Yang
- Department of Urology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Shasha Liu
- Diabetic Center and Institute of Transplantation, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan Province, China
| | - Xue Pei
- Department of Medical Genetics and Division of Human Morbid Genomics, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan Province, China
| | - Dachang Tao
- Department of Medical Genetics and Division of Human Morbid Genomics, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan Province, China
| | - Yilu Lu
- Department of Medical Genetics and Division of Human Morbid Genomics, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan Province, China
| | - Yongxin Ma
- Department of Medical Genetics and Division of Human Morbid Genomics, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan Province, China
| | - Yuan Yang
- Department of Medical Genetics and Division of Human Morbid Genomics, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan Province, China
| | - Yunqiang Liu
- Department of Medical Genetics and Division of Human Morbid Genomics, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan Province, China
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Tu W, Yang B, Leng X, Pei X, Xu J, Liu M, Dong Q, Tao D, Lu Y, Liu Y, Yang Y. Testis-specific protein, Y-linked 1 activates PI3K/AKT and RAS signaling pathways through suppressing IGFBP3 expression during tumor progression. Cancer Sci 2019; 110:1573-1586. [PMID: 30815935 PMCID: PMC6501036 DOI: 10.1111/cas.13984] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 02/19/2019] [Accepted: 02/24/2019] [Indexed: 02/05/2023] Open
Abstract
The testis‐specific protein, Y‐linked 1 (TSPY1), a newly recognized cancer/testis antigen, has been suggested to accelerate tumor progression. However, the mechanisms underlying TSPY1 cancer‐related function remain limited. By mining the RNA sequencing data of lung and liver tumors from The Cancer Genome Atlas, we found frequent ectopic expression of TSPY1 in lung adenocarcinoma (LUAD) and liver hepatocellular carcinoma (LIHC), and the male‐specific protein was associated with higher mortality rate and worse overall survival in patients with LUAD and LIHC. Overexpression of TSPY1 promotes cell proliferation, invasiveness, and cycle transition and inhibits apoptosis, whereas TSPY1 knockdown has the opposite effects on these cancer cell phenotypes. Transcriptomic analysis revealed the involvement of TSPY1 in PI3K/AKT and RAS signaling pathways in both LUAD and LIHC cells, which was further confirmed by the increase in the levels of phosphorylated proteins in the PI3K‐AKT and RAS signaling pathways in TSPY1‐overexpressing cancer cells, and by the suppression on the activity of these two pathways in TSPY1‐knockdown cells. Further investigation identified that TSPY1 could directly bind to the promoter of insulin growth factor binding protein 3 (IGFBP3) to inhibit IGFBP3 expression and that downregulation of IGFBP3 increased the activity of PI3K/AKT/mTOR/BCL2 and RAS/RAF/MEK/ERK/JUN signaling in LUAD and LIHC cells. Taken together, the observations reveal a novel mechanism by which TSPY1 could contribute to the progression of LUAD and LIHC. Our finding is of importance for evaluating the potential of TSPY1 in immunotherapy of male tumor patients with TSPY1 expression.
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Affiliation(s)
- Wenling Tu
- Department of Medical Genetics, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - Bo Yang
- Department of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Xiangyou Leng
- Department of Medical Genetics, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - Xue Pei
- Department of Medical Genetics, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - Jinyan Xu
- Department of Medical Genetics, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - Mohan Liu
- Department of Medical Genetics, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - Qiang Dong
- Department of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Dachang Tao
- Department of Medical Genetics, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - Yongjie Lu
- Department of Medical Genetics, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - Yunqiang Liu
- Department of Medical Genetics, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - Yuan Yang
- Department of Medical Genetics, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
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Li Y, Yu X, Cui Y, Tu W, Shen T, Yan M, Wei Y, Chen X, Wang Q, Chen Q, Gu Y, Zhao K, Xiang Q, Zou L, Ma M. The potential of cadmium ion-immobilized Rhizobium pusense KG2 to prevent soybean root from absorbing cadmium in cadmium-contaminated soil. J Appl Microbiol 2019; 126:919-930. [PMID: 30489679 DOI: 10.1111/jam.14165] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [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: 01/29/2018] [Revised: 10/12/2018] [Accepted: 11/19/2018] [Indexed: 11/28/2022]
Abstract
AIMS Because the effect of Cd2+ -immobilized microbe on Cd uptake of plants in Cd-contaminated soil remains underexplored, this study focuses on the effect of Cd2+ -immobilized rhizobia on Cd uptake of soybean. METHODS AND RESULTS Strain KG2 from soybean nodule was identified as Rhizobium pusense KG2 by phylogenetic analysis. Rhizobium pusense KG2 showed the 120 mg l-1 of minimal lethal concentration for Cd2+ . In 50 and 100 mg l-1 of Cd2+ liquid, approximately 2 × 1010 cells removed 56·71 and 22·11% of Cd2+ , respectively. In pot soil containing 50 and 100 mg kg-1 of Cd2+ , strain KG2 caused a 45·9 and 35·3% decrease in soybean root Cd content, respectively. Meanwhile, KG2 improved the root and shoot length, nitrogen content and biomass of soybean plants and superoxide dismutase activity. CONCLUSIONS The Cd2+ -immobilized rhizobia could inhibit soybean plants to absorb Cd2+ from soil, promote plant growth and improve plant's tolerance against Cd. This study is the first time to report that R. pusense is an effective nodulating rhizobium of legume. SIGNIFICANCE AND IMPACT OF THE STUDY Some Cd2+ -immobilized microbe lowering Cd uptake of plant and promoting plant growth should be considered as an effective strategy for producing safety crops in the Cd-contaminated agricultural soil.
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Affiliation(s)
- Y Li
- College of Resources, Sichuan Agricultural University, Chengdu, China
| | - X Yu
- College of Resources, Sichuan Agricultural University, Chengdu, China
| | - Y Cui
- Sichuan Provincial Academy of Natural Resource and Sciences, Chengdu, China
| | - W Tu
- Sichuan Provincial Academy of Natural Resource and Sciences, Chengdu, China
| | - T Shen
- College of Resources, Sichuan Agricultural University, Chengdu, China
| | - M Yan
- College of Resources, Sichuan Agricultural University, Chengdu, China
| | - Y Wei
- College of Resources, Sichuan Agricultural University, Chengdu, China
| | - X Chen
- College of Resources, Sichuan Agricultural University, Chengdu, China
| | - Q Wang
- Sichuan Provincial Academy of Natural Resource and Sciences, Chengdu, China
| | - Q Chen
- College of Resources, Sichuan Agricultural University, Chengdu, China
| | - Y Gu
- College of Resources, Sichuan Agricultural University, Chengdu, China
| | - K Zhao
- College of Resources, Sichuan Agricultural University, Chengdu, China
| | - Q Xiang
- College of Resources, Sichuan Agricultural University, Chengdu, China
| | - L Zou
- College of Resources, Sichuan Agricultural University, Chengdu, China
| | - M Ma
- College of Resources, Sichuan Agricultural University, Chengdu, China
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Yang X, Leng X, Tu W, Liu Y, Xu J, Pei X, Ma Y, Yang D, Yang Y. Spermatogenic phenotype of testis-specific protein, Y-encoded, 1 (TSPY1) dosage deficiency is independent of variations in TSPY-like 1 (TSPYL1) and TSPY-like 5 (TSPYL5): a case-control study in a Han Chinese population. Reprod Fertil Dev 2018; 30:555-562. [PMID: 28847364 DOI: 10.1071/rd17146] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Accepted: 08/05/2017] [Indexed: 02/05/2023] Open
Abstract
Testis-specific protein, Y-encoded, 1 (TSPY1) is involved in the regulation of spermatogenic efficiency via highly variable copy dosage, with dosage deficiency of the multicopy gene conferring an increased risk of spermatogenic failure. TSPY-like 1 (TSPYL1) and TSPY-like 5 (TSPYL5), two autosomal homologous genes originating from TSPY1, share a core sequence that encodes a functional nucleosome assembly protein (NAP) domain with TSPY1. To explore the potential effects of TSPYL1 and TSPYL5 on the TSPY1-related spermatogenic phenotype, we investigated the expression of these genes in 15 healthy and nonpathological human tissues (brain, kidney, liver, pancreas, thymus, prostate, spleen, muscle, leucocytes, placenta, intestine, ovary, lung, colon and testis) and explored associations between their variations and spermatogenic failure in 1558 Han Chinese men with different spermatogenic conditions, including 304 men with TSPY1 dosage deficiency. TSPYL1 and TSPYL5 were expressed in many different tissues, including the testis. An unreported rare variant that is likely pathogenic (c.1057A>G, p.Thr353Ala) and another of uncertain significance (c.1258C>T, p.Arg420Cys) in the NAP-coding sequence of TSPYL1 were observed in three spermatogenesis-impaired patients with heterozygous status. The distribution differences in the alleles, genotypes and haplotypes of eight TSPYL1- and TSPYL5-linked common variants did not reach statistical significance in comparisons of patients with spermatogenic failure and controls with normozoospermia. No difference in sperm production was observed among men with different genotypes of the variants. Similar results were obtained in men with TSPY1 dosage deficiencies. Although the distribution of missense variants of TSPYL1 found in the present and other studies suggests that patients with spermatogenic failure may have a statistically significant greater burden of rare variations in TSPYL1 relative to normozoospermic controls, the functional evidence suggests that TSPYL1 contributes to impaired spermatogenesis. Moreover, the present study suggests that the effects of TSPYL1 and TSPYL5 on the spermatogenic phenotype of TSPY1 dosage deficiency are limited, which may be due to the stability of their function resulting from high sequence conservation.
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Affiliation(s)
- Xiling Yang
- Department of Medical Genetics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Xiangyou Leng
- Department of Medical Genetics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Wenling Tu
- Department of Medical Genetics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Yunqiang Liu
- Department of Medical Genetics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Jinyan Xu
- Department of Medical Genetics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Xue Pei
- Department of Medical Genetics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Yongyi Ma
- Jinjiang Maternal and Child Health Hospital, Chengdu, Sichuan, 610011, China
| | - Dong Yang
- Reproductive Medicine Institute, Chengdu Women's and Children's Central Hospital, Chengdu, Sichuan, 610031, China
| | - Yuan Yang
- Department of Medical Genetics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
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Tu W, Chen L, Huang H, Yang H, Chen W, Su H, Chao S, Lee J, McGrath J, Hsu C. LB1541 GPNMB mutations and skin pathology in amyloidosis cutis dyschromica. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.06.075] [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: 11/25/2022]
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Yan Y, Yang X, Liu Y, Shen Y, Tu W, Dong Q, Yang D, Ma Y, Yang Y. Copy number variation of functional RBMY1 is associated with sperm motility: an azoospermia factor-linked candidate for asthenozoospermia. Hum Reprod 2018; 32:1521-1531. [PMID: 28498920 DOI: 10.1093/humrep/dex100] [Citation(s) in RCA: 26] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 04/28/2017] [Indexed: 02/05/2023] Open
Abstract
STUDY QUESTION What is the influence of copy number variation (CNV) in functional RNA binding motif protein Y-linked family 1 (RBMY1) on spermatogenic phenotypes? SUMMARY ANSWER The RBMY1 functional copy dosage is positively correlated with sperm motility, and dosage insufficiency is an independent risk factor for asthenozoospermia. WHAT IS KNOWN ALREADY RBMY1, a multi-copy gene expressed exclusively in the adult testis, is one of the most important candidates for male infertility in the azoospermia factor (AZF) region of the Y-chromosome. RBMY1 encodes an RNA-binding protein that serves as a pre-mRNA splicing regulator during spermatogenesis, and male mice deficient in Rbmy are sterile. STUDY DESIGN, SIZE, DURATION A total of 3127 adult males were recruited from 2009 to 2016; of this group, the dosage of RBMY1 functional copy were investigated in 486 fertile males. In the remaining 2641 males with known spermatogenesis status, 1070 Y-chromosome haplogroup (Y-hg) O3* or O3e carriers without chromosomal aberration or known AZF structure mutations responsible for spermatogenic impairment, including 506 men with normozoospermia and 564 men with oligozoospermia or/and asthenozoospermia, were screened, and the RBMY1 functional copy dosage and copy conversion were determined to explore their associations with sperm phenotypes. The correlation between RBMY1 dosage and its mRNA level or RBMY1 protein level and the correlation between sperm RBMY1 level and motility were analysed in 15 testis tissue samples and eight semen samples. Ten additional semen samples were used to confirm the subcellular localization of RBMY1 in individual sperm. PARTICIPANTS/MATERIALS, SETTING, METHODS All the Han volunteers donating whole blood, semen and testis tissue were from southwest China. RBMY1 copy number, copy conversion, mRNA/protein amount and protein location in sperm were detected using the AccuCopy® assay method, paralog ratio test, quantitative PCR, western blotting and immunofluorescence staining methods, respectively. MAIN RESULTS AND THE ROLE OF CHANCE This study identified Y-hg-independent CNV of functional RBMY1 in the enrolled population. A difference in the distribution of RBMY1 copy number was observed between the group with normal sperm motility and the group with asthenozoospermia. A positive correlation between the RBMY1 copy dosage and sperm motility was identified, and the males with fewer than six copies of RBMY1 showed an elevated risk for asthenozoospermia relative to those with six RBMY1 copies, the most common dosage in the population. The RBMY1 copy dosage was positively correlated with its mRNA and protein level in the testis. Sperm with high motility were found to carry more RBMY1 protein than those with relatively low motility. The RBMY1 protein was confirmed to predominantly localize in the neck and mid-piece region of sperm as well as the principal piece of the sperm tail. Our population study completes a chain of evidence suggesting that RBMY1 influences the susceptibility of males to asthenozoospermia by modulating sperm motility. LIMITATIONS REASONS FOR CAUTION High sequence similarity between the RBMY1 functional copies and a large number of pseudogenes potentially reduces the accuracy of the copy number detection. The mechanism underlying the CNV in RBMY1 is still unclear, and the effect of the structural variations in the RBMY1 copy cluster on the copy dosage of other protein-coding genes located in the region cannot be excluded, which may potentially bias our observations. WIDER IMPLICATIONS OF THE FINDINGS Asthenozoospermia is a multi-factor complex disease with a limited number of proven susceptibility genes. This study identified a novel genomic candidate independently contributing to the condition, enriching our understanding of the role of AZF-linked genes in male reproduction. Our finding provides insight into the physiological and pathological characteristics of RBMY1 in terms of sperm motility, supplies persuasive evidence of the significance of RBMY1 copy number analysis in the clinical counselling of male infertility resulting from asthenozoospermia. STUDY FUNDING/COMPETING INTEREST(S) This work was funded by the National Natural Science Foundation of China (Nos. 81370748 and 30971598). The authors have no conflicts of interest.
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Affiliation(s)
- Yuanlong Yan
- Department of Medical Genetics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center, No. 1, Keyuan Road 4, Gaopeng Street, Chengdu, Sichuan 610041, China
| | - Xiling Yang
- Department of Medical Genetics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center, No. 1, Keyuan Road 4, Gaopeng Street, Chengdu, Sichuan 610041, China
| | - Yunqiang Liu
- Department of Medical Genetics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center, No. 1, Keyuan Road 4, Gaopeng Street, Chengdu, Sichuan 610041, China
| | - Ying Shen
- Department of Medical Genetics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center, No. 1, Keyuan Road 4, Gaopeng Street, Chengdu, Sichuan 610041, China
| | - Wenling Tu
- Department of Medical Genetics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center, No. 1, Keyuan Road 4, Gaopeng Street, Chengdu, Sichuan 610041, China
| | - Qiang Dong
- Department of Urology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Dong Yang
- Reproductive Medicine Institute, Chengdu Women's and Children's Central Hospital, Chengdu, Sichuan 610031, China
| | - Yongyi Ma
- Jinjiang Maternal and Child Health Hospital, Chengdu, Sichuan 610016, China
| | - Yuan Yang
- Department of Medical Genetics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center, No. 1, Keyuan Road 4, Gaopeng Street, Chengdu, Sichuan 610041, China
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Shen Y, Tu W, Liu Y, Yang X, Dong Q, Yang B, Xu J, Yan Y, Pei X, Liu M, Xu W, Yang Y. TSPY1 suppresses USP7-mediated p53 function and promotes spermatogonial proliferation. Cell Death Dis 2018; 9:542. [PMID: 29748603 PMCID: PMC5945610 DOI: 10.1038/s41419-018-0589-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [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: 09/09/2017] [Revised: 03/30/2018] [Accepted: 04/12/2018] [Indexed: 02/05/2023]
Abstract
Testis-specific protein Y-linked 1 (TSPY1) is expressed predominantly in adult human spermatogonia and functions in the process of spermatogenesis; however, our understanding of the underlying mechanism is limited. Here we observed that TSPY1, as an interacting partner of TSPY-like 5 (TSPYL5), enhanced the competitive binding of TSPYL5 to ubiquitin-specific peptidase 7 (USP7) in conjunction with p53. This activity, together with its promotion of TSPYL5 expression by acting as a transcription factor, resulted in increased p53 ubiquitylation. Moreover, TSPY1 could decrease the p53 level by inducing the degradation of ubiquitinated USP7. We demonstrated that the promotion of p53 degradation by TSPY1 influenced the activity of p53 target molecules (CDK1, p21, and BAX) to expedite the G2/M phase transition and decrease cell apoptosis, accelerating cell proliferation. Taken together, the observations reveal the significance of TSPY1 as a suppressor of USP7-mediated p53 function in inhibiting p53-dependent cell proliferation arrest. By simulating TSPY1 function in Tspy1-deficient spermatogonia derived from mouse testes, we found that TSPY1 could promote spermatogonial proliferation by decreasing the Usp7-modulated p53 level. The findings suggest an additional mechanism underlying the regulation of spermatogonial p53 function, indicating the significance of TSPY1 in germline homeostasis maintenance and the potential of TSPY1 in regulating human spermatogonial proliferation via the USP7-mediated p53 signaling pathway.
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Affiliation(s)
- Ying Shen
- Department of Medical Genetics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center, Chengdu, 610041, China.,Joint Laboratory of Reproductive Medicine, SCU-CUHK, Key Laboratory of Obstetric, Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, 610041, China
| | - Wenling Tu
- Department of Medical Genetics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center, Chengdu, 610041, China
| | - Yunqiang Liu
- Department of Medical Genetics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center, Chengdu, 610041, China
| | - Xiling Yang
- Department of Medical Genetics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center, Chengdu, 610041, China
| | - Qiang Dong
- Department of Urology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Bo Yang
- Department of Urology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jinyan Xu
- Department of Medical Genetics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center, Chengdu, 610041, China
| | - Yuanlong Yan
- Department of Medical Genetics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center, Chengdu, 610041, China
| | - Xue Pei
- Department of Medical Genetics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center, Chengdu, 610041, China
| | - Mohan Liu
- Department of Medical Genetics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center, Chengdu, 610041, China
| | - Wenming Xu
- Joint Laboratory of Reproductive Medicine, SCU-CUHK, Key Laboratory of Obstetric, Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, 610041, China
| | - Yuan Yang
- Department of Medical Genetics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center, Chengdu, 610041, China.
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Lu Y, Liu Y, Liao S, Tu W, Shen Y, Yan Y, Tao D, Lu Y, Ma Y, Yang Y, Zhang S. Epigenetic modifications promote the expression of the orphan nuclear receptor NR0B1 in human lung adenocarcinoma cells. Oncotarget 2017; 7:43162-43176. [PMID: 27281610 PMCID: PMC5190015 DOI: 10.18632/oncotarget.9012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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: 03/03/2016] [Accepted: 04/15/2016] [Indexed: 02/05/2023] Open
Abstract
The ectopic activation of NR0B1 is involved in the development of some cancers. However, the regulatory mechanisms controlling NR0B1 expression are not well understood. Therefore, the epigenetic modifications promoting NR0B1 activation were examined in this study. NR0B1 protein was detected in cancerous tissues of more than 50% of human lung adenocarcinoma (ADCA) cases and tended to be expressed in low-differentiated cancerous tissues obtained from males. Nevertheless, NR0B1 activation in ADCA has not previously been correlated with DNA demethylation. NR0B1 expression was not detected in 293T cells, although it contains a hypomethylated NR0B1 promoter. Treating 293T cells with a histone deacetylase inhibitor increased acetylated histone H4 binding to the NR0B1 promoter and activated NR0B1 expression. In contrast, treatment with histone methylase inhibitors decreased the methylation of histones H3K9 and H3K27 and slightly induced NR0B1 transcription. Furthermore, the level of acetyl-histone H4 binding to the NR0B1 promoter increased, whereas the occupancy of H3K27me3 was lower in cancerous tissues than in non-cancerous tissues. Similar histone occupancies were confirmed in a comparison of cancerous tissues with strong, moderate and negative NR0B1 expression. In conclusion, this study shows that CpG methylation within the NR0B1 promoter is not involved in the in vivo regulation of NR0B1 expression, whereas the hyperacetylation of histone H4 and the unmethylation of histones H3K9 and H3K27, and their binding to the NR0B1 promoter results in decondensed euchromatin for NR0B1 activation.
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Affiliation(s)
- Yongjie Lu
- Department of Medical Genetics and Division of Human Morbid Genomics, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan Province, China
| | - Yunqiang Liu
- Department of Medical Genetics and Division of Human Morbid Genomics, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan Province, China
| | - Shunyao Liao
- Diabetic Center and Institute of Transplantation, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan Province, China
| | - Wenling Tu
- Department of Medical Genetics and Division of Human Morbid Genomics, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan Province, China
| | - Ying Shen
- Department of Medical Genetics and Division of Human Morbid Genomics, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan Province, China
| | - Yuanlong Yan
- Department of Medical Genetics and Division of Human Morbid Genomics, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan Province, China
| | - Dachang Tao
- Department of Medical Genetics and Division of Human Morbid Genomics, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan Province, China
| | - Yilu Lu
- Department of Medical Genetics and Division of Human Morbid Genomics, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan Province, China
| | - Yongxin Ma
- Department of Medical Genetics and Division of Human Morbid Genomics, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan Province, China
| | - Yuan Yang
- Department of Medical Genetics and Division of Human Morbid Genomics, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan Province, China
| | - Sizhong Zhang
- Department of Medical Genetics and Division of Human Morbid Genomics, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan Province, China
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Yan G, Chen T, Liu Y, Xu Y, Guoqi Z, Zhang T, Chen Z, Tu W, Yao S, Hu Z, Chen X, Chen H, He X. Phase 2 Study of Adjuvant Chemoradiation Therapy Using Docetaxel/Cisplatin/5-Fluorouracil Before and After Intensity-Modulated Radiation Therapy With Concurrent Docetaxel in Patients With Completely (R0) Resected Gastric Carcinoma. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Carnahan J, Slaven J, Callahan C, Tu W, Torke A. SKILLED NURSING FACILITY TO HOME CARE TRANSITIONS: OUTCOMES OF EARLY OUTPATIENT FOLLOW-UP. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | - J. Slaven
- Indiana University, Indianapolis, Indiana
| | | | - W. Tu
- Indiana University, Indianapolis, Indiana
| | - A. Torke
- Indiana University, Indianapolis, Indiana
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Lang HL, Hu GW, Chen Y, Liu Y, Tu W, Lu YM, Wu L, Xu GH. Glioma cells promote angiogenesis through the release of exosomes containing long non-coding RNA POU3F3. Eur Rev Med Pharmacol Sci 2017; 21:959-972. [PMID: 28338200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
OBJECTIVE Angiogenesis is a key event in the progression of gliomas, and emerging evidence suggests that exosomes are signaling extracellular organelles that modulate the tumor microenvironment and promote angiogenesis and tumor progression. This study aimed to explore the mechanism by which glioma-derived exosomes affect angiogenesis. MATERIALS AND METHODS qRT-PCR was used to determine the expression level of linc-POU3F3 in glioma tissue as well as glioma cell lines. Ultrafiltration combined with a purification method was used to isolate exosomes derived from A172 cells (A172-Exo) and linc-POU3F3 shRNA-treated A172 cells (shA172-Exo). Transmission electron microscopy, Western blot and tunable resistive pulse sensing (TRPS) were used to identify exosomes. In vitro migration, proliferation, and tube formation experiments, as well as in vivo CAM assays, were used to analyze the pro-angiogenesis ability of exosomes. qRT-PCR and Western blot were used to identify expression levels of angiogenesis-related genes and proteins in human brain microvascular endothelial cells (HBMECs) after being cultured with exosomes. RESULTS The levels of linc-POU3F3 were upregulated in glioma tissue and significantly correlated with the advanced tumor stage. A172 cells exhibited the highest expression level. A172-Exo was similar to shA172-Exo (50-100 nm in diameter) and expressed Alix, Tsg101 and CD9, while the expression level of linc-POU3F3 in A172-Exo was significantly higher than that in shA172-Exo. HBMECs rapidly internalized A172-Exo and shA172-Exo, and the linc-POU3F3 expression level in HBMECs treated with A172-Exo was significantly higher than the level in HBMECs treated with shA172-Exo. A172-Exo exhibited better function in promoting HBMECs migration, proliferation, tubular-like structure formation in vitro and arteriole formation in vivo. The gene and protein expression level of bFGF, bFGFR, VEGFA, and Angio in HBMECs treated with A172-Exo was much higher than that of HBMECs treated with shA172-Exo. CONCLUSIONS These results indicated that gliomas can induce angiogenesis by secreting exosomes enriched in linc-POU3F3. Exosomes and lncRNA-POU3F3 may, therefore, function as a putative therapeutic target in glioma.
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Affiliation(s)
- H-L Lang
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China.
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Xiao CL, Liu Y, Tu W, Xia YJ, Tian KM, Zhou X. [Research progress of the mechanisms underlying cadmium-induced carcinogenesis]. Zhonghua Yu Fang Yi Xue Za Zhi 2017; 50:380-4. [PMID: 27029376 DOI: 10.3760/cma.j.issn.0253-9624.2016.04.021] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Since cadmium is an indirect genotoxic carcinogen, epigenetic modifications could be one of the major mechanisms underlying cadmium-induced carcinogenesis. It has been proposed that epigenetic alterations might be associated with cadmium-induced carcinogenesis, such as disruptions of DNA methylation, histone modifications, and microRNA expression profile, which would result in abnormal expression of carcinogenesis-related genes and/or imbalance of signal transduction pathways. Other mechanisms of cadmium-induced carcinogenesis consist of disruption of gene regulation and signaling pathways, repression of DNA repair, suppression of apoptosis, induction of oxidative stress and autophagy. Here, we reviewed the research of both epigenetic and non-epigenetic mechanisms underlying cadmium-induced carcinogenesis.
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Affiliation(s)
- C L Xiao
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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Qiu H, Wang M, Mi D, Zhao J, Tu W, Liu Q. Vitamin D Status and the Risk of Recurrent Stroke and Mortality in Ischemic Stroke Patients: Data from a 24-Month Follow-Up Study in China. J Nutr Health Aging 2017; 21:766-771. [PMID: 28717806 DOI: 10.1007/s12603-016-0821-z] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [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] [Indexed: 01/12/2023]
Abstract
PURPOSE In this study, we determined serum 25-hydroxyvitamin D [25(OH) D] levels in serum, and investigated their associations with risk of recurrent stroke and mortality in a 24-month follow up study in Chinese patients with first-ever ischemic stroke. METHODS In this preplanned post hoc analysis, serum levels of 25(OH) D and NIH stroke scale (NIHSS) were measured at the time of admission in a cohort of patients with ischemic stroke. We used logistic regression model to assess the relationship between 25(OH) D levels and risk recurrent stroke or mortality. RESULTS The follow-up rate was 98.2% in 220 stroke patients. Of 216 patients, 18.5% (95%CI: 13.3%-23.7%) patients had a stroke recurrence, and 30.1% (95% CI: 24.0%-36.2%) died. After adjustment for traditional risk factors, serum 25(OH) D levels were negatively associated with the risk of stroke recurrence (odds ratio [OR], 0.77; 95% confidence interval [CI], 0.70-0.85; P < 0.001) and negatively associated with mortality during 24 months of follow-up (OR, 0.72; 95% CI, 0.64-0.80; P< 0.001). Compared with the first quartile of serum 25(OH) D levels, the ORs for stroke recurrence and mortality were as follows: second quartile, 0.80 (95% CI, 0.63-0.93) and 0.77 (95% CI, 0.65-0.89); third quartile, 0.42 (95% CI, 0.31-0.55) and 0.39 (95% CI, 0.30-0.52); fourth quartile, 0.12 (95% CI, 0.07-0.19) and 0.10 (95% CI, 0.06-0.15), respectively. CONCLUSIONS Lower serum levels of 25(OH) D are independently associated with the stroke recurrence and mortality at 24 months in ischemic stroke patients.
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Affiliation(s)
- H Qiu
- Jizong Zhao, No.6, Tiantanxili, Dongcheng District, Beijing 100050, P. R. China, Tel: 86-13701095698,
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Jordanova VK, Tu W, Chen Y, Morley SK, Panaitescu A, Reeves GD, Kletzing CA. RAM-SCB simulations of electron transport and plasma wave scattering during the October 2012 "double-dip" storm. J Geophys Res Space Phys 2016; 121:8712-8727. [PMID: 27867801 PMCID: PMC5101868 DOI: 10.1002/2016ja022470] [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] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 08/31/2016] [Accepted: 09/03/2016] [Indexed: 06/06/2023]
Abstract
Mechanisms for electron injection, trapping, and loss in the near-Earth space environment are investigated during the October 2012 "double-dip" storm using our ring current-atmosphere interactions model with self-consistent magnetic field (RAM-SCB). Pitch angle and energy scattering are included for the first time in RAM-SCB using L and magnetic local time (MLT)-dependent event-specific chorus wave models inferred from NOAA Polar-orbiting Operational Environmental Satellites (POES) and Van Allen Probes Electric and Magnetic Field Instrument Suite and Integrated Science observations. The dynamics of the source (approximately tens of keV) and seed (approximately hundreds of keV) populations of the radiation belts simulated with RAM-SCB is compared with Van Allen Probes Magnetic Electron Ion Spectrometer observations in the morning sector and with measurements from NOAA 15 satellite in the predawn and afternoon MLT sectors. We find that although the low-energy (E< 100 keV) electron fluxes are in good agreement with observations, increasing significantly by magnetospheric convection during both SYM-H dips while decreasing during the intermediate recovery phase, the injection of high-energy electrons is underestimated by this mechanism throughout the storm. Local acceleration by chorus waves intensifies the electron fluxes at E≥50 keV considerably, and RAM-SCB simulations overestimate the observed trapped fluxes by more than an order of magnitude; the precipitating fluxes simulated with RAM-SCB are weaker, and their temporal and spatial evolutions agree well with POES/Medium Energy Proton and Electron Detectors data.
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Affiliation(s)
- V. K. Jordanova
- Space Science and ApplicationsLos Alamos National LaboratoryLos AlamosNew MexicoUSA
| | - W. Tu
- Space Science and ApplicationsLos Alamos National LaboratoryLos AlamosNew MexicoUSA
- Department of Physics and AstronomyWest Virginia UniversityMorgantownWest VirginiaUSA
| | - Y. Chen
- Space Science and ApplicationsLos Alamos National LaboratoryLos AlamosNew MexicoUSA
| | - S. K. Morley
- Space Science and ApplicationsLos Alamos National LaboratoryLos AlamosNew MexicoUSA
| | - A.‐D. Panaitescu
- Space Science and ApplicationsLos Alamos National LaboratoryLos AlamosNew MexicoUSA
| | - G. D. Reeves
- Space Science and ApplicationsLos Alamos National LaboratoryLos AlamosNew MexicoUSA
| | - C. A. Kletzing
- Department of Physics and AstronomyUniversity of IowaIowa CityIowaUSA
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Mo K, Tu W, Xu S, Wu S, Tao Y. Abstract PR317. Anesth Analg 2016. [DOI: 10.1213/01.ane.0000492714.20486.6b] [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: 11/05/2022]
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Hardy K, Wu F, Tu W, Zafar A, Boulding T, McCuaig R, Sutton CR, Theodoratos A, Rao S. Identification of chromatin accessibility domains in human breast cancer stem cells. Nucleus 2016; 7:50-67. [PMID: 26962893 PMCID: PMC4916893 DOI: 10.1080/19491034.2016.1150392] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [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] [Indexed: 12/18/2022] Open
Abstract
Epithelial-to-mesenchymal transition (EMT) is physiological in embryogenesis and wound healing but also associated with the formation of cancer stem cells (CSCs). Many EMT signaling pathways are implicated in CSC formation, but the precise underlying mechanisms of CSC formation remain elusive. We have previously demonstrated that PKC is critical for EMT induction and CSC formation in inducible breast EMT/CSC models. Here, we used formaldehyde-assisted isolation of regulatory elements-sequencing (FAIRE-seq) to investigate DNA accessibility changes after PKC activation and determine how they influence EMT and CSC formation. During EMT, DNA accessibility principally increased in regions distant from transcription start sites, low in CpG content, and enriched with chromatin enhancer marks. ChIP-sequencing revealed that a subset of these regions changed from poised to active enhancers upon stimulation, with some even more acteylated in CSCs. While regions with increased accessibility were enriched for FOX, AP-1, TEAD, and TFAP2 motifs, those containing FOX and AP-1 motif were associated with increased expression of CSC-associated genes, while those with TFAP2 were associated with genes with increased expression in non-CSCs. Silencing of 2 members of the FOX family, FOXN2 and FOXQ1, repressed CSCs and the mesenchymal phenotype and inhibited the CSC gene signature. These novel, PKC-induced DNA accessibility regions help explain how the epigenomic plasticity of cells undergoing EMT leads to CSC gene activation.
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Affiliation(s)
- K Hardy
- a HRI, Faculty of ESTeM, University of Canberra , Bruce , Australia
| | - F Wu
- a HRI, Faculty of ESTeM, University of Canberra , Bruce , Australia
| | - W Tu
- a HRI, Faculty of ESTeM, University of Canberra , Bruce , Australia
| | - A Zafar
- a HRI, Faculty of ESTeM, University of Canberra , Bruce , Australia
| | - T Boulding
- a HRI, Faculty of ESTeM, University of Canberra , Bruce , Australia
| | - R McCuaig
- a HRI, Faculty of ESTeM, University of Canberra , Bruce , Australia
| | - C R Sutton
- a HRI, Faculty of ESTeM, University of Canberra , Bruce , Australia
| | - A Theodoratos
- b JCSMR, Australian National University , Canberra, Australia
| | - S Rao
- a HRI, Faculty of ESTeM, University of Canberra , Bruce , Australia
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Tu W, Shang LQ, Dai SB, Zong N, Wang ZM, Zhang FF, Chen Y, Liu K, Zhang SJ, Yang F, Peng QJ, Cui DF, Xu ZY. 0.95 W high-repetition-rate, picosecond 335 nm laser based on a frequency quadrupled, diode-pumped Nd:YVO(4) MOPA system. Appl Opt 2015; 54:6182-6185. [PMID: 26193391 DOI: 10.1364/ao.54.006182] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
An efficient all-solid-state picosecond (ps) ultraviolet (UV) laser at 335 nm was demonstrated based on frequency quadrupling of a mode-locked 1342 nm MOPA system. An output power of 0.95 W was obtained under a fundamental wave power of 16.38 W, corresponding to a conversion efficiency of 5.8% from infrared to UV. The repetition rate and pulse duration were 77 MHz and 20.2 ps, respectively. The beam quality factor M(2) was measured to be 1.56. This is, to the best of our knowledge, the highest output power at 335 nm.
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Wang J, Yi L, Guo X, Liu M, Li H, Zou H, Gu Y, Tu W, Guo G, Yang L, Lai S, He D, Zhou X. Association of the IRF5 SNP rs2004640 with systemic sclerosis in Han Chinese. Int J Immunopathol Pharmacol 2015; 27:635-8. [PMID: 25572744 DOI: 10.1177/039463201402700420] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Systemic sclerosis (SSc) is a complex disease involving multiple genetic factors. An association of the IRF5 polymorphism with SSc was reported in Caucasian populations of Europe and North America, as well as in Japanese populations. The present study aimed to examine whether the SSc-associated SNP rs2004640 of IRF5 gene confer susceptibility to SSc and clinical features of SSc in a Han Chinese population. A Han Chinese cohort consisting of 424 SSc patients and 502 healthy controls were examined in the study. TaqMan assays were carried out to examine the SNP. Exact p-values were obtained (Fishers test) from 2x2 tables of allele counts and disease status. SSc patients of Han Chinese showed increased homozygous TT genotype of the rs2004640 (p = 0.027, odds ratio (OR) = 1.4, CI =1.03-1.93), which was significantly associated with pulmonary fibrosis of SSc and ATA-positive SSc of Han Chinese. The lcSSc and ACA-positive SSc of Han Chinese appeared also in association with the increased T allele frequency. However, the Chinese dcSSc did not show any association with the rs2004640. The results were consistent with previous reports in other ethnic populations in supporting the notion that polymorphisms of IRF5 may play an important role in susceptibility to SSc.
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Affiliation(s)
- J Wang
- State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China
| | - L Yi
- Division of Rheumatology and Clinical Immunogenetics, University of Texas Medical School at Houston, TX , USA
| | - X Guo
- Division of Rheumatology and Clinical Immunogenetics, University of Texas Medical School at Houston, TX , USA
| | - M Liu
- Division of Rheumatology and Clinical Immunogenetics, University of Texas Medical School at Houston, TX , USA
| | - H Li
- Division of Rheumatology and Clinical Immunogenetics, University of Texas Medical School at Houston, TX , USA
| | - H Zou
- Institute of Rheumatology, Immunology and Allergy, Fudan University, Shanghai, China
| | - Y Gu
- Gansu Provincial Hospital, Lanzhou, China
| | - W Tu
- Shanghai Traditional Chinese Medicine-Integrated Hospital, Shanghai, China
| | - G Guo
- Yiling Hospital, Shijiazhuang, China
| | - L Yang
- Teaching Hospital of Chengdu University of TCM, Chengdu, China
| | - S Lai
- Baylor College of Medicine and Houston VA Hospital, Houston, USA
| | - D He
- Institute of Arthritis Research, Shanghai Academy of Chinese Medical Sciences, Shanghai Guanghua Integrative Medicine Hospital, Shanghai, China
| | - X Zhou
- Division of Rheumatology and Clinical Immunogenetics, University of Texas Medical School at Houston, TX , USA
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Tu W, Liu Y, Shen Y, Yan Y, Wang X, Yang D, Li L, Ma Y, Tao D, Zhang S, Yang Y. Genome-Wide Loci Linked to Non-Obstructive Azoospermia Susceptibility May Be Independent of Reduced Sperm Production in Males with Normozoospermia1. Biol Reprod 2015; 92:41. [DOI: 10.1095/biolreprod.114.125237] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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Yang B, Yang Y, Tu W, Shen Y, Dong Q. A rare case of unilateral adrenal hyperplasia accompanied by hypokalaemic periodic paralysis caused by a novel dominant mutation in CACNA1S: features and prognosis after adrenalectomy. BMC Urol 2014; 14:96. [PMID: 25430699 PMCID: PMC4259161 DOI: 10.1186/1471-2490-14-96] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [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: 05/01/2014] [Accepted: 11/20/2014] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Acute hypokalaemic paralysis is characterised by acute flaccid muscle weakness and has a complex aetiological spectrum. Herein we report, for the first time, a case of unilateral adrenal hyperplasia accompanied by hypokalaemic periodic paralysis type I resulting from a novel dominant mutation in CACNA1S. We present the clinical features and prognosis after adrenalectomy in this case. CASE PRESENTATION A 43-year-old Han Chinese male presented with severe hypokalaemic paralysis that remitted after taking oral potassium. The patient had suffered from periodic attacks of hypokalaemic paralysis for more than 20 years. A computed tomography (CT) scan of the abdomen showed a nodular mass on the left adrenal gland, although laboratory examination revealed the patient had not developed primary aldosteronism. The patient underwent a left adrenalectomy 4 days after admission, and the pathological examination further confirmed a 1.1 cm benign nodule at the periphery of the adrenal gland. Three months after the adrenalectomy, a paralytic attack recurred and the patient asked for assistance from the Department of Medical Genetics. His family history showed that two uncles, one brother, and a nephew also had a history of periodic paralysis, although their symptoms were milder. The patient's CACNA1S and SCN4A genes were sequenced, and a novel missense mutation, c.1582C > T (p.Arg528Cys), in CACNA1S was detected. Detection of the mutation in five adult male family members, including three with periodic paralysis and two with no history of the disease, indicated that this mutation caused hypokalaemic periodic paralysis type I in his family. Follow-up 2 years after adrenalectomy showed that the serum potassium concentration was increased between paralyses and the number and severity of paralytic attacks were significantly decreased. CONCLUSION We identified a novel dominant mutation, c.1582C > T (p.Arg528Cys), in CACNA1S that causes hypokalaemic periodic paralysis. The therapeutic effect of adrenalectomy indicated that unilateral adrenal hyperplasia might make paralytic attacks more serious and more frequent by decreasing serum potassium. This finding suggests that the surgical removal of hyperplastic tissues might relieve the symptoms of patients with severe hypokalaemic paralysis caused by other incurable diseases, even if the adrenal lesion does not cause primary aldosteronism.
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Affiliation(s)
| | | | | | | | - Qiang Dong
- Department of Urology, West China Hospital, Sichuan University, Chengdu 610041, China.
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Tu W, Cook A, Scholl JL, Mears M, Watt MJ, Renner KJ, Forster GL. Serotonin in the ventral hippocampus modulates anxiety-like behavior during amphetamine withdrawal. Neuroscience 2014; 281:35-43. [PMID: 25241066 DOI: 10.1016/j.neuroscience.2014.09.019] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2014] [Revised: 09/06/2014] [Accepted: 09/10/2014] [Indexed: 12/13/2022]
Abstract
Withdrawal from amphetamine is associated with increased anxiety and sensitivity to stressors which are thought to contribute to relapse. Rats undergoing amphetamine withdrawal fail to exhibit stress-induced increases in serotonin (5-HT) release in the ventral hippocampus and show heightened anxiety-like behaviors. Therefore, we tested the hypothesis that reducing 5-HT levels in the ventral hippocampus is a causal mechanism in increasing anxiety-like behaviors during amphetamine withdrawal. First, we tested whether reducing 5-HT levels in the ventral hippocampus directly increases anxiety behavior. Male rats were bilaterally infused with 5,7-dihydroxytryptamine (5,7-DHT) into the ventral hippocampus, which produced a 83% decrease in ventral hippocampus 5-HT content, and were tested on the elevated plus maze (EPM) for anxiety-like behavior. Reducing ventral hippocampus 5-HT levels decreased the time spent in the open arms of the maze, suggesting that diminished ventral hippocampus 5-HT levels increases anxiety-like behavior. Next, we tested whether increasing 5-HT levels in the ventral hippocampus reverses anxiety behavior exhibited by rats undergoing amphetamine withdrawal. Rats were treated daily with either amphetamine (2.5-mg/kg, i.p.) or saline for 2weeks, and at 2weeks withdrawal, were infused with the selective serotonin reuptake inhibitor paroxetine (0.5μM) bilaterally into the ventral hippocampus and tested for anxiety-like behavior on the EPM. Rats pre-treated with amphetamine exhibited increased anxiety-like behavior on the EPM. This effect was reversed by ventral hippocampus infusion of paroxetine. Our results suggest that 5-HT levels in the ventral hippocampus are critical for regulating anxiety behavior. Increasing 5-HT levels during withdrawal may be an effective strategy for reducing anxiety-induced drug relapse.
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Affiliation(s)
- W Tu
- Center for Brain and Behavior Research, Division of Basic Biomedical Sciences, Sanford School of Medicine at the University of South Dakota, 414 East Clark Street, Vermillion, SD, USA
| | - A Cook
- Center for Brain and Behavior Research, Division of Basic Biomedical Sciences, Sanford School of Medicine at the University of South Dakota, 414 East Clark Street, Vermillion, SD, USA
| | - J L Scholl
- Center for Brain and Behavior Research, Division of Basic Biomedical Sciences, Sanford School of Medicine at the University of South Dakota, 414 East Clark Street, Vermillion, SD, USA
| | - M Mears
- Center for Brain and Behavior Research, Division of Basic Biomedical Sciences, Sanford School of Medicine at the University of South Dakota, 414 East Clark Street, Vermillion, SD, USA
| | - M J Watt
- Center for Brain and Behavior Research, Division of Basic Biomedical Sciences, Sanford School of Medicine at the University of South Dakota, 414 East Clark Street, Vermillion, SD, USA
| | - K J Renner
- Center for Brain and Behavior Research, Biology Department, University of South Dakota, 414 East Clark Street, Vermillion, SD, USA
| | - G L Forster
- Center for Brain and Behavior Research, Division of Basic Biomedical Sciences, Sanford School of Medicine at the University of South Dakota, 414 East Clark Street, Vermillion, SD, USA.
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Hu QN, Deng Z, Tu W, Yang X, Meng ZB, Deng ZX, Liu J. VNP: Interactive Visual Network Pharmacology of Diseases, Targets, and Drugs. CPT Pharmacometrics Syst Pharmacol 2014; 3:e105. [PMID: 24622768 PMCID: PMC4039393 DOI: 10.1038/psp.2014.1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Accepted: 12/28/2013] [Indexed: 02/04/2023]
Abstract
In drug discovery, promiscuous targets, multifactorial diseases, and "dirty" drugs construct complex network relationships. Network pharmacology description and analysis not only give a systems-level understanding of drug action and disease complexity but can also help to improve the efficiency of target selection and drug design. Visual network pharmacology (VNP) is developed to visualize network pharmacology of targets, diseases, and drugs with a graph network by using disease, target or drug names, chemical structures, or protein sequence. To our knowledge, VNP is the first free interactive VNP server that should be very helpful for systems pharmacology research. VNP is freely available at http://cadd.whu.edu.cn/ditad/vnpsearch.
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Affiliation(s)
- Q-N Hu
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, and Wuhan University School of Pharmaceutical Sciences, Wuhan, P. R. China
| | - Z Deng
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, and Wuhan University School of Pharmaceutical Sciences, Wuhan, P. R. China
| | - W Tu
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, and Wuhan University School of Pharmaceutical Sciences, Wuhan, P. R. China
| | - X Yang
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, and Wuhan University School of Pharmaceutical Sciences, Wuhan, P. R. China
| | - Z-B Meng
- State Key Laboratory of Software Engineering (Wuhan University) and Wuhan University School of Computer Science, Wuhan, P. R. China
| | - Z-X Deng
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, and Wuhan University School of Pharmaceutical Sciences, Wuhan, P. R. China
| | - J Liu
- State Key Laboratory of Software Engineering (Wuhan University) and Wuhan University School of Computer Science, Wuhan, P. R. China
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Lau YL, Tu W. Case-control study of Sichuan and Hong Kong children with melamine-associated renal stones: renal ultrasonography and urinary IL-8 and MCP-1 levels. Hong Kong Med J 2013; 19 Suppl 8:26-30. [PMID: 24473525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023] Open
Affiliation(s)
- Y L Lau
- Department of Paediatrics and Adolescent Medicine, The University of Hong Kong
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Abstract
PURPOSE To describe the application of propensity score analysis in pharmacoepidemiologic research using a study comparing the renal effects of two commonly prescribed non-steroidal anti-inflammatory drugs (NSAIDs). METHOD Observational data were collected on the change in renal function, as measured by serum creatinine concentration, before and after use of two NSAIDs, Ibuprofen and Sulindac. To estimate the treatment effect of the different NSAIDs, we used the propensity score methodology to reduce the potential confounding effects caused by unbalanced covariates. After estimating the propensity scores (the probabilities of each patient being prescribed Sulindac) from a logistic regression model, we stratified the data based on sample quintiles of the propensity score distribution. The final estimate of the treatment effect was then obtained by averaging the treatment estimates from the stratified samples. RESULTS Initially, 23 covariates differed significantly between the two treatment groups. Using the propensity score methodology, we were able to balance the distributions of 16 covariates. The imbalances in the remaining seven covariates were also greatly reduced. Although the use of either drug resulted in a decrease in renal function, overall differences between them were not statistically significant with respect to their effect on creatinine concentrations based on the propensity score analysis. CONCLUSION Observational studies often produce treatment groups that are not directly comparable due to imbalances in covariate distributions between the treatment groups. Propensity score analysis provides a simple and effective way of controlling the effects of these covariates and obtaining a less biased estimate of the treatment effect. Copyright (c) 2000 John Wiley & Sons, Ltd.
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Qin G, Liu Y, Zheng J, Xiang Z, Ng I, Peiris M, Lau YL, Tu W. Phenotypic and functional characterization of human γδ T cell subsets in response to influenza A viruses. Int J Infect Dis 2012. [DOI: 10.1016/j.ijid.2012.05.238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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Weaver B, Shew M, Qadadri B, Tu W, Tong Y, Denski C, Fortenberry JD, Ermel A, Brown D. Low-level persistence of human papillomavirus 16 DNA in a cohort of closely followed adolescent women. J Med Virol 2011; 83:1362-9. [PMID: 21678439 DOI: 10.1002/jmv.22116] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Most human papillomavirus (HPV) infections in young women become undetectable by standard assays after a few months. It is possible that many HPV infections do not actually clear, but persist at very low levels for years, becoming detected again later in life. The purpose of this study is to describe HPV 16 clearance, reappearance, and low-level persistence in a cohort of adolescent women. Adolescent women (N = 66), not vaccinated against HPV, were recruited from 1998 to 2008 into a longitudinal study. Self-collected vaginal samples were obtained quarterly and tested for HPV by Linear Array HPV Genotyping Test (LA-HPV). To explore low-level persistence, a type-specific nested PCR for HPV 16 (TSN-PCR-16) was developed. Women with HPV 16 detected by LA-HPV had their negative swabs retested with TSN-PCR-16. Forty-two participants with HPV 16, followed for a mean of 6.3 years, were analyzed. Using LA-HPV, the median duration of HPV 16 detection was 428 days (SD 852.5 days). TSN-PCR-16 detected HPV 16 during periods of LA-HPV non-detection in samples from many women. Using a combination of LA-HPV and TSN-PCR-16 results, the median duration of HPV 16 detection was 1,022.5 days (SD 943.7 days). The durations of detection differed significantly between the two methods (P = 0.0042) with a mean difference of 434.5 days. In adolescent females, duration of HPV 16 detection was significantly longer when TSN-PCR-16 was combined with LA-HPV. Some apparently cleared HPV 16 could be shown to persist at low levels using nested PCR.
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Affiliation(s)
- B Weaver
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, USA
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Wiehe S, Fortenberry JD, Rosenman M, Tu W. P1-S4.09 Validation of the HEDIS measure of sexual activity in adolescents. Br J Vener Dis 2011. [DOI: 10.1136/sextrans-2011-050108.153] [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: 11/04/2022]
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Tu W, Batteiger B, Ofner S, Van Der Pol B, Fortenberry D. P1-S1.12 Age-specific incidence of chlamydia, gonorrhoea, and trichomoniasis infection in adolescent women. Br J Vener Dis 2011. [DOI: 10.1136/sextrans-2011-050108.12] [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: 11/04/2022]
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