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Wu D, Mao J, Liu J, Zhang X, Ying S. The application value of circulating tumor DNA methylation biomarkers in early diagnosis of non-small cell lung cancer. Minerva Med 2024; 115:107-109. [PMID: 37338233 DOI: 10.23736/s0026-4806.23.08752-9] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
Affiliation(s)
- Dongping Wu
- Department of Radiation Oncology, Shaoxing People's Hospital, Shaoxing, China
| | - Jiwei Mao
- Department of Radiation Oncology, Shaoxing People's Hospital, Shaoxing, China
| | - Jianjiang Liu
- Department of Radiation Oncology, Shaoxing People's Hospital, Shaoxing, China
| | - Xiaoyu Zhang
- Department of Radiation Oncology, Shaoxing People's Hospital, Shaoxing, China
| | - Shenpeng Ying
- Department of Radiation Oncology, Taizhou Central Hospital, Affiliated Hospital of Taizhou University, Taizhou, China -
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Lu H, Pan Y, Ruan Y, Zhu C, Hassan HM, Gao J, Gao J, Fan L, Liang X, Wang H, Ying S, Chen Q. Biomarker Discovery for Early Diagnosis of Papillary Thyroid Carcinoma Using High-Throughput Enhanced Quantitative Plasma Proteomics. J Proteome Res 2023; 22:3200-3212. [PMID: 37624590 DOI: 10.1021/acs.jproteome.3c00187] [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] [Indexed: 08/26/2023]
Abstract
The incidence of thyroid cancer (TC) has been increasing over the last 50 years worldwide. A higher rate of overdiagnosis in indolent thyroid lesions has resulted in unnecessary treatment. An accurate detection of TC at an early stage is highly demanded. We aim to develop an enhanced isobaric labeling-based high-throughput plasma quantitative proteomics to identify biomarkers in a discovery cohort. Selected candidates were tested by enzyme-linked immunosorbent assay (ELISA) in the training cohort and validation cohort. In total, 1063 proteins were quantified, and 129 proteins were differentially expressed between patients and healthy subjects. Serum levels of ISG15 and PLXNB2 were significantly elevated in patients with papillary thyroid cancer (PTC) or thyroid adenoma, compared to healthy subjects (p < 0.001) and patients with nodular goiter (p < 0.001). Receiver operating characteristic (ROC) analysis of combined markers (ISG15 and PLXNB2) significantly distinguished PTC from healthy control (HC) subjects. Similar differentiations were also found between thyroid adenoma and HC subjects. Notably, this combined marker could distinguish stage-I PTC from HC subjects (area under the curve (AUC) = 0.872). Our results revealed that ISG15 and PLXNB2 are independent diagnostic biomarkers for PTC and thyroid adenoma, showing a promising value for the early detection of PTC.
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Affiliation(s)
- Hongsheng Lu
- Department of Pathology, Taizhou Central Hospital (Taizhou University Hospital), 999 Donghai Avenue, Taizhou 318000, Zhejiang, P. R. China
| | - Yin Pan
- Surgical Oncology, Taizhou Central Hospital (Taizhou University Hospital), 999 Donghai Avenue, Taizhou 318000, Zhejiang, P. R. China
| | - Yanyun Ruan
- Precision Medicine Center, Taizhou Central Hospital (Taizhou University Hospital), 999 Donghai Avenue, Taizhou 318000, Zhejiang, P. R. China
| | - Chumeng Zhu
- Precision Medicine Center, Taizhou Central Hospital (Taizhou University Hospital), 999 Donghai Avenue, Taizhou 318000, Zhejiang, P. R. China
| | - Hozeifa M Hassan
- Precision Medicine Center, Taizhou Central Hospital (Taizhou University Hospital), 999 Donghai Avenue, Taizhou 318000, Zhejiang, P. R. China
| | - Junshun Gao
- Hangzhou Cosmos Wisdom Mass Spectrometry Center of Zhejiang University Medical School, 198 Qidi Road, Xiaoshan District, Hangzhou 311202, Zhejiang, P. R. China
- Key Laboratory of Precision Medicine in Diagnosis and Monitoring Research of Zhejiang Province, 198 Qidi Road, Xiaoshan District, Hangzhou 311202, Zhejiang, P. R. China
| | - Junli Gao
- Hangzhou Cosmos Wisdom Mass Spectrometry Center of Zhejiang University Medical School, 198 Qidi Road, Xiaoshan District, Hangzhou 311202, Zhejiang, P. R. China
- Key Laboratory of Precision Medicine in Diagnosis and Monitoring Research of Zhejiang Province, 198 Qidi Road, Xiaoshan District, Hangzhou 311202, Zhejiang, P. R. China
| | - Lilong Fan
- Department of Pathology, Taizhou Central Hospital (Taizhou University Hospital), 999 Donghai Avenue, Taizhou 318000, Zhejiang, P. R. China
| | - Xi Liang
- Precision Medicine Center, Taizhou Central Hospital (Taizhou University Hospital), 999 Donghai Avenue, Taizhou 318000, Zhejiang, P. R. China
| | - Hong Wang
- Hangzhou Cosmos Wisdom Mass Spectrometry Center of Zhejiang University Medical School, 198 Qidi Road, Xiaoshan District, Hangzhou 311202, Zhejiang, P. R. China
- Key Laboratory of Precision Medicine in Diagnosis and Monitoring Research of Zhejiang Province, 198 Qidi Road, Xiaoshan District, Hangzhou 311202, Zhejiang, P. R. China
| | - Shenpeng Ying
- Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), 999 Donghai Avenue, Taizhou 318000, Zhejiang, P. R. China
| | - Qi Chen
- Precision Medicine Center, Taizhou Central Hospital (Taizhou University Hospital), 999 Donghai Avenue, Taizhou 318000, Zhejiang, P. R. China
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Qiu C, Huang Z, Lin C, Zhang G, Ying S. A despeckling method for ultrasound images utilizing content-aware prior and attention-driven techniques. Comput Biol Med 2023; 166:107515. [PMID: 37839221 DOI: 10.1016/j.compbiomed.2023.107515] [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: 07/09/2023] [Revised: 08/25/2023] [Accepted: 09/19/2023] [Indexed: 10/17/2023]
Abstract
The despeckling of ultrasound images contributes to the enhancement of image quality and facilitates precise treatment of conditions such as tumor cancers. However, the use of existing methods for eliminating speckle noise can cause the loss of image texture features, impacting clinical judgment. Thus, maintaining clear lesion boundaries while eliminating speckle noise is a challenging task. This paper presents an innovative approach for denoising ultrasound images using a novel noise reduction network model called content-aware prior and attention-driven (CAPAD). The model employs a neural network to automatically capture the hidden prior features in ultrasound images to guide denoising and embeds the denoiser into the optimization module to simultaneously optimize parameters and noise. Moreover, this model incorporates a content-aware attention module and a loss function that preserves the structural characteristics of the image. These additions enhance the network's capacity to capture and retain valuable information. Extensive qualitative evaluation and quantitative analysis performed on a comprehensive dataset provide compelling evidence of the model's superior denoising capabilities. It excels in noise suppression while successfully preserving the underlying structures within the ultrasound images. Compared to other denoising algorithms, it demonstrates an improvement of approximately 5.88% in PSNR and approximately 3.61% in SSIM. Furthermore, using CAPAD as a preprocessing step for breast tumor segmentation in ultrasound images can greatly improve the accuracy of image segmentation. The experimental results indicate that the utilization of CAPAD leads to a notable enhancement of 10.43% in the AUPRC for breast cancer tumor segmentation.
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Affiliation(s)
- Chenghao Qiu
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, 610000, Sichuan, China.
| | - Zifan Huang
- School of Electronics and Information Engineering, Guangdong Ocean University, Zhanjiang, 524088, China.
| | - Cong Lin
- School of Electronics and Information Engineering, Guangdong Ocean University, Zhanjiang, 524088, China.
| | - Guodao Zhang
- Department of Digital Media Technology, Hangzhou Dianzi University, Hangzhou, 310018, China.
| | - Shenpeng Ying
- Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, 318000, China.
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Wang Y, Ni L, Ying S, Xu Y, Chen W, Liu Y. Individualized estimates of intensity-modulated radiotherapy plans after breast conservation surgery for left-sided breast cancer. World J Surg Oncol 2023; 21:59. [PMID: 36823541 PMCID: PMC9948370 DOI: 10.1186/s12957-023-02936-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 02/11/2023] [Indexed: 02/25/2023] Open
Abstract
OBJECTIVES The purpose of this study was to explore the influence of individual patient factors, such as volume of the planning target volume (PTV) (VPTV), cardiothoracic ratio (CTR), central lung distance (CLD), and maximal heart distance (MHD), on the design of treatment plans in terms of target dose coverage, integral dose, and dose to organs at risk (OAR) in early breast cancer. METHODS Ninety-six patients were selected for this study. Radiation doses of 50 Gy and a simultaneous dose of 60 Gy in 25 fractions were administered to the whole breast and tumor bed, respectively. The intensity modulation plan (IMRT) of each patient uses both physical parameters and an equivalent uniform dose (EUD) to optimize the target function. Univariate and multivariate linear regression were used to analyze the relationship between predictive impact factors and OAR percent dose volume, conformity index (CI), and homogeneity index (HI). RESULTS The average CI and HI values of the left breast cancer plan were 0.595 ± 0.071 (0.3-0.72) and 1.095 ± 0.023 (1.06-1.18), respectively. The CTR (B = 0.21, P = 0.045), VPTV (B = 0.63, P = 0.000), volume of the lung (Vlung) (B = - 0.29, P = 0.005), and MHD (B = 0.22, P = 0.041) were identified as factors influencing the CI index of the left breast cancer intensity modulation plan. VPTV (B = 1.087, P = 0.022) was identified as the influencing factor of the HI index of the left breast cancer intensity modulation plan. volume of the heart (Vheart) (B = - 0.43, P = 0.001) and CLD (B = 0.28, P = 0.008) were influencing factors of the volume of lung (Vlung20) of the lung. The prediction formulas for left-sided breast cancer are noted as follows: CI = 0.459 + 0.19CTR-0.16CLD, Vlung10 = 35.5-0.02Vheart; and Vlung20 = 21.48 + 2.8CLD-0.018Vheart. CONCLUSIONS CTR, CLD, and MHD can predict the rationality of the parameters of the left breast cancer IMRT. The calculation formula generated based on this information can help the physicist choose the optimal radiation field setting method and improve the quality of the treatment plan.
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Affiliation(s)
- Yong Wang
- grid.452858.60000 0005 0368 2155Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), No.999 Donghai Road, Taizhou, 318000 Zhejiang People’s Republic of China
| | - Lingqin Ni
- grid.452858.60000 0005 0368 2155Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), No.999 Donghai Road, Taizhou, 318000 Zhejiang People’s Republic of China
| | - Shenpeng Ying
- grid.452858.60000 0005 0368 2155Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), No.999 Donghai Road, Taizhou, 318000 Zhejiang People’s Republic of China
| | - Yuanyuan Xu
- grid.452858.60000 0005 0368 2155Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), No.999 Donghai Road, Taizhou, 318000 Zhejiang People’s Republic of China
| | - Weijun Chen
- grid.452858.60000 0005 0368 2155Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), No.999 Donghai Road, Taizhou, 318000 Zhejiang People’s Republic of China
| | - Yanmei Liu
- Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), No.999 Donghai Road, Taizhou, 318000, Zhejiang, People's Republic of China.
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Sun H, Ren Y, Zhou X, Chen Q, Liu Y, Zhu C, Ruan Y, Ruan H, Tong H, Ying S, Lin P. DUSP1 Signaling Pathway Regulates Cytarabine Sensitivity in Acute Myeloid Leukemia. Technol Cancer Res Treat 2023; 22:15330338231207765. [PMID: 37872685 PMCID: PMC10594969 DOI: 10.1177/15330338231207765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/30/2023] [Accepted: 08/23/2023] [Indexed: 10/25/2023] Open
Abstract
Objectives: Dual specificity phosphatase 1 (DUSP1) is high-expressed in various cancers and plays an important role in the cellular response to agents that damage DNA. We aimed to investigate the expressions and mechanisms of DUSP1 signaling pathway regulating cytarabine (Ara-C) resistance in acute myeloid leukemia (AML). Methods: Immunohistochemistry was performed on bone marrow biopsy specimens from AML and controls to explore the expression of DUSP1. Western blot and Q-PCR were used to detect the protein and mRNA expression levels. MTT assay was used to detect the proliferation of cells. Cell apoptosis was detected by flow cytometry. The immune protein-protein interaction (PPI) network of DUSP1 was analyzed in the platform of Pathway Commons, and immune infiltration analysis was used to study the immune microenvironment of AML. Results: We found that the expression levels of DUSP1 in AML patients exceeded that in controls. Survival analysis in public datasets showed that AML patients with higher levels of DUSP1 had poor clinical outcomes. Further public data analysis indicated that DUSP1 was overexpressed in NRAS mutated AML. DUSP1 knockdown by siRNA could sensitize AML cells to Ara-C treatments. The phosphorylation level of mitogen-activated protein kinase (MAPK) pathway was significantly elevated in DUSP1 down-regulated NRAS G13D mutated AML cells. The PPI analysis showed DUSP1 correlated with immune gene CREB1 and CXCL8 in NRAS mutated AML. We also revealed a correlation between tumor-infiltrating immune cells in RAS mutated AML microenvironment. Conclusion: Our findings suggest that DUSP1 signaling pathways may regulate Ara-C sensitivity in AML.
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Affiliation(s)
- Huali Sun
- Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, China
| | - Yanling Ren
- Myelodysplastic Syndrome Center, Department of Hematology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Xinping Zhou
- Myelodysplastic Syndrome Center, Department of Hematology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Qi Chen
- Precision Medicine Center, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, China
| | - Yanmei Liu
- Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, China
| | - Chumeng Zhu
- Precision Medicine Center, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, China
| | - Yanyun Ruan
- Precision Medicine Center, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, China
| | - Hongli Ruan
- Department of Emergency Medicine, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, China
| | - Hongyan Tong
- Myelodysplastic Syndrome Center, Department of Hematology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Shenpeng Ying
- Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, China
| | - Peipei Lin
- Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, China
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qin Z, Ma R, Ying S, Li F, Ma Y. Synthesis of substituted pyrimido[1,2‐b]indazoles through [3+2+1] cyclization of 3‐aminoindazoles, ketones and N,N‐dimethylaminoethanol as one carbon synthon. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200707] [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: 11/08/2022]
Affiliation(s)
| | | | | | - Fanzhu Li
- Zhejiang Chinese Medical University CHINA
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Ruan H, Sun H, Guo Y, Ding Y, Liu Y, Ying S, Lin P. Prognostic nomogram and novel risk-scoring system for small cell lung cancer with different patterns of metastases. Gen Thorac Cardiovasc Surg 2022; 70:1022-1031. [PMID: 35716296 DOI: 10.1007/s11748-022-01840-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Accepted: 05/30/2022] [Indexed: 11/26/2022]
Abstract
OBJECTIVE This research is aimed to develop the prognostic nomogram and novel risk-scoring system for small cell lung cancer (SCLC) with different patterns of metastases. METHODS Data on SCLC patients were extracted from the 2010-2015 Surveillance, Epidemiology, and End Results (SEER) database. This nomogram prognostic model was confirmed in the validation cohort. C-index and calibration curve were used to evaluate the accuracy of nomogram model. The predictive capability and net benefit of nomogram was estimated by decision curve analysis (DCA). The cut-off point of the risk stratification system based on nomogram was assessed by X-tile analysis. RESULTS Our Cox model indicated that age, gender, American Joint Committee on Cancer (AJCC) stage, metastases, chemotherapy, radiation and surgery were independent predictors for OS in SCLC patients. The C-index value of nomogram integrating significant variables for predicting OS in SCLC patients was 0.752 in SEER training set and 0.748 in SEER validation set, respectively. However, the TNM stage only had C-indexes of 0.464 and 0.472 for predicting OS, respectively. The nomogram prognostic model in this study showed higher C-indexes than those in the TNM stage. The C-index value and high quality of calibration plots indicate that the predictive ability of our nomogram model was of great superiority. DCA showed the nomogram had good clinical value. SCLC patients were further divided into low-risk and high-risk group according to nomogram predicted scores. CONCLUSION Our nomogram model that integrated significant factors can aid as an individualized clinical predictive tool in SCLC patients.
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Affiliation(s)
- Hongli Ruan
- Department of Emergency Medicine, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, People's Republic of China
| | - Huali Sun
- Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), No. 999 Donghai Road, Taizhou, 318000, Zhejiang, People's Republic of China
| | - Yu Guo
- Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), No. 999 Donghai Road, Taizhou, 318000, Zhejiang, People's Republic of China
| | - Yan Ding
- Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), No. 999 Donghai Road, Taizhou, 318000, Zhejiang, People's Republic of China
| | - Yanmei Liu
- Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), No. 999 Donghai Road, Taizhou, 318000, Zhejiang, People's Republic of China
| | - Shenpeng Ying
- Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), No. 999 Donghai Road, Taizhou, 318000, Zhejiang, People's Republic of China.
| | - Peipei Lin
- Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), No. 999 Donghai Road, Taizhou, 318000, Zhejiang, People's Republic of China.
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Song Z, Li Y, Chen S, Ying S, Xu S, Huang J, Wu D, Lv D, Bei T, Liu S, Huang X, Xie C, Wu X, Fu J, Hua F, Wang W, Xu C, Gao C, Cai S, Lu S, Zhang Y. Efficacy and safety of pyrotinib in advanced lung adenocarcinoma with HER2 mutations: a multicenter, single-arm, phase II trial. BMC Med 2022; 20:42. [PMID: 35101045 PMCID: PMC8805254 DOI: 10.1186/s12916-022-02245-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 01/10/2022] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND There is currently a lack of effective treatments for non-small cell lung cancer (NSCLC) patients harboring HER2 mutations. We examined the efficacy and safety of, and potential resistance mechanism to, pyrotinib, a pan-HER inhibitor, in advanced NSCLC carrying HER2 mutations. METHODS In this multicenter, single-arm, phase II trial, stage IIIB-IV NSCLC patients harboring HER2 mutations, as determined using next-generation sequencing, were enrolled and treated with pyrotinib at a dose of 400 mg/day. The primary endpoint was 6-month progression-free survival (PFS) rate, and secondary endpoints were objective response rate (ORR), PFS, overall survival (OS), disease control rate (DCR), and safety. The impact of different HER2 mutation types on sensitivity to pyrotinib and the potential of utilizing mutational profile derived from circulating tumor DNA (ctDNA) to predict disease progression were also explored. RESULTS Seventy-eight patients were enrolled for efficacy and safety analysis. The 6-month PFS rate was 49.5% (95% confidence interval [CI], 39.2-60.8). Pyrotinib produced an ORR of 19.2% (95% CI, 11.2-30.0), with median PFS of 5.6 months (95% CI, 2.8-8.4), and median OS of 10.5 months (95% CI, 8.7-12.3). The median duration of response was 9.9 months (95% CI, 6.2-13.6). All treatment-related adverse events (TRAEs) were grade 1-3 (all, 91.0%; grade 3, 20.5%), and the most common TRAE was diarrhea (all, 85.9%; grade 3, 16.7%). Patients with exon 20 and non-exon 20 HER2 mutations had ORRs of 17.7% and 25.0%, respectively. Brain metastases at baseline and prior exposure to afatinib were not associated with ORR, PFS, or OS. Loss of HER2 mutations and appearance of amplification in HER2 and EGFR were detected upon disease progression. CONCLUSIONS Pyrotinib exhibited promising efficacy and acceptable safety in NSCLC patients carrying exon 20 and non-exon 20 HER2 mutations and is worth further investigation. TRIAL REGISTRATION Chinese Clinical Trial Registry Identifier: ChiCTR1800020262.
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Affiliation(s)
- Zhengbo Song
- Department of Clinical Trial, Zhejiang Cancer Hospital, Hangzhou, 310022, China
| | - Yuping Li
- Department of Respiratory Diseases, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Shiqing Chen
- The Medical Department, 3D Medicines Inc., Shanghai, 201114, China
| | - Shenpeng Ying
- Department of Radiotherapy, Taizhou Central Hospital, Affiliated Hospital of Taizhou University, Taizhou, 318000, China
| | - Shuguang Xu
- Department of Respiratory Disease, Ningbo Medical Center, Lihuili Eastern Hospital, Ningbo, 315001, China
| | - Jianjin Huang
- Department of Medical Oncology, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Dan Wu
- Department of Thoracic Surgery, Cixi People Hospital, Ningbo, 315300, China
| | - Dongqing Lv
- Department of Respiratory Disease, Taizhou Hospital, Taizhou, 317000, China
| | - Ting Bei
- The Medical Department, 3D Medicines Inc., Shanghai, 201114, China
| | - Shuxun Liu
- Department of Medical Oncology, Taizhou Cancer Hospital, Hangzhou, 317500, China
| | - Xiaoping Huang
- Department of Respiratory Diseases, the Affiliated Ningbo No. 1 Hospital, School of Medicine, Ningbo University, Ningbo, 315001, China
| | - Congying Xie
- Department of Radiation and Medical Oncology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Xiaoyu Wu
- Department of Respiratory Diseases, Guangfu Hospital, Jinhua, 321000, China
| | - Jianfei Fu
- Department of Medical Oncology, Jinhua Central Hospital, Jinhua, 321000, China
| | - Feng Hua
- Department of Respiratory Diseases, Huzhou Central Hospital, Huzhou, 313003, China
| | - Wenxian Wang
- Department of Chemotherapy, Zhejiang Cancer Hospital, Hangzhou, 310022, China
| | - Chunwei Xu
- Department of Medical Oncology, Zhejiang Cancer Hospital, 1 East Banshan Road, Hangzhou, 310022, China
| | - Chan Gao
- The Medical Department, 3D Medicines Inc., Shanghai, 201114, China
| | - Shangli Cai
- The Medical Department, 3D Medicines Inc., Shanghai, 201114, China
| | - Shun Lu
- Shanghai Lung Cancer Center, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, 20030, China
| | - Yiping Zhang
- Department of Medical Oncology, Zhejiang Cancer Hospital, 1 East Banshan Road, Hangzhou, 310022, China.
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Qin Z, Zhang R, Ying S, Ma Y. Iron-catalyzed [3+2+1] annulation of 2-aminobenzimidazoles/3-aminopyrazoles and aromatic alkynes using N,N-dimethylaminoethanol as one carbon synthon for the synthesis of pyrimido[1,2-a]benzimidazoles and pyrimido[1,2-b]indazoles. Org Chem Front 2022. [DOI: 10.1039/d2qo01008a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple and efficient method for the synthesis of pyrimido[1,2-a]benzimidazoles and pyrimido[1,2-b]indazoles from 2-aminobenzimidazoles/3-aminoindazoles, alkynes and N,N-dimethylaminoethanol in a three-component [3+2+1] annulation catalyzed by FeCl3 has been established, where N,N-dimethylaminoethanol...
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10
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Si J, Gu X, Wang W, Ying S, Song Z. Clinical outcomes of lung adenocarcinoma patients harboring uncommon epidermal growth factor receptor (EGFR) mutations treated with EGFR-tyrosine kinase inhibitors (TKIs). Ann Palliat Med 2021; 11:1624-1634. [PMID: 35016520 DOI: 10.21037/apm-21-2828] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 12/16/2021] [Indexed: 11/06/2022]
Abstract
BACKGROUND This study aimed to explore the efficacy of different epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) in lung adenocarcinoma (AC) patients harboring uncommon EGFR mutations. METHODS Between January 1st, 2013 and October 1st, 2019, 2,680 EGFR mutation-positive patients with confirmed stage IIIB/IV lung AC were enrolled from Zhejiang Cancer Hospital. Uncommon EGFR mutations were detected in 132 patients using next-generation-sequencing. Clinicopathological features between patients with uncommon EGFR mutations and common EGFR mutations were evaluated by the chi-square test. The clinical outcomes of patients with uncommon EGFR mutations were analyzed by the Kaplan-Meier method. RESULTS Of 132 AC patients with uncommon EGFR mutations, 115 received EGFR-TKIs. Secondgeneration EGFR-TKIs were associated with longer progression-free survival (PFS) (P=0.116) and overall survival (OS) (P=0.005) than first or third-generation EGFR-TKIs. We also found that patients with compound mutations and double uncommon EGFR mutations had longer PFS (P=0.725) and OS (P=0.741) than those with single uncommon EGFR mutation, although the difference was not significant. In addition, third-generation EGFR-TKIs were more effective than the other two agents in patients with primary T790M mutation regarding PFS (P=0.150) and OS (P=0.033), although the difference in PFS was not significant. CONCLUSIONS Patients with uncommon EGFR mutations treated with second-generation EGFR-TKIs showed better PFS and OS. EGFR-TKIs were more effective in patients with compound mutations or double uncommon mutations.
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Affiliation(s)
- Jinfei Si
- The Second Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, China; Department of Clinical Trial, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, China; Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China
| | - Xiaodong Gu
- The Second Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, China; Department of Clinical Trial, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, China; Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China
| | - Wenxian Wang
- Department of Clinical Trial, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, China; Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China
| | - Shenpeng Ying
- Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, China
| | - Zhengbo Song
- Department of Clinical Trial, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, China; Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China
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11
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Song Z, Lv D, Chen SQ, Huang J, Li Y, Ying S, Wu X, Hua F, Wang W, Xu C, Bei T, Gao C, Sun Z, Zhang Y, Lu S. Pyrotinib in Patients with HER2-Amplified Advanced Non-Small Cell Lung Cancer: A Prospective, Multicenter, Single-Arm Trial. Clin Cancer Res 2021; 28:461-467. [PMID: 34753778 DOI: 10.1158/1078-0432.ccr-21-2936] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 10/02/2021] [Accepted: 11/05/2021] [Indexed: 11/16/2022]
Abstract
PURPOSE In this study, we aimed to evaluate the efficacy and safety of pyrotinib, a pan-HER inhibitor, in HER2-amplified NSCLC patients. PATIENTS AND METHODS In this prospective, multicenter, single-arm trial (ChiCTR1800020262), advanced NSCLC patients with HER2 amplification, as determined by next-generation sequencing, were enrolled and administered pyrotinib orally at 400 mg per day. The primary endpoint was 6-month progression-free survival (PFS) rate. Other endpoints included objective response rate (ORR), disease control rate (DCR), PFS, overall survival (OS), and safety. RESULTS The enrolled cohort included twenty-seven patients with HER2 amplification. The 6-month PFS rate was 51.9% (95% confidence interval [CI] 34.0%-69.3%). The median PFS was 6.3 months (95%CI 3.0-9.6 months), and median OS was 12.5 months (95%CI 8.2-16.8 months). Pyrotinib elicited a confirmed ORR of 22.2% (95%CI 10.6%-40.8%). Patients administered pyrotinib as first-line treatment achieved an mPFS of 12.4 months. Moreover, 30.8% of the patients who had progressed on epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor (TKI) responded to pyrotinib. Patients with brain metastases had an ORR of 40%. Treatment-related adverse events (TRAEs) occurred in all patients (grade 3, 22.2%), but no grade 4 or higher TRAEs were documented. Diarrhea was the most frequent TRAE (all, 92.6%; grade 3, 7.4%). Loss of HER2 amplification was detected upon disease progression. CONCLUSIONS Pyrotinib provided antitumor efficacy with a manageable safety profile in HER2-amplified NSCLC patients.
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Affiliation(s)
- Zhengbo Song
- Department of Chemotherapy, Zhejiang Cancer Hospital
| | - Dongqing Lv
- Department of Respiratory Disease, Taizhou Hospital of Zhejiang Province
| | | | - Jianjin Huang
- The Second Affiliated Hospital, School of Medicine, Zhejiang University
| | - Yuping Li
- First Affiliated Hospital of Wenzhou Medical University
| | - Shenpeng Ying
- Taizhou Central Hospital , Affiliated Hospital of Taizhou University
| | | | - Feng Hua
- respiratory medicine, Affiliated Huzhou Hospital of Zhejiang University
| | - Wenxian Wang
- Department of Chemotherapy, Zhejiang Cancer Hospital
| | - Chunwei Xu
- Jinling Hospital, Nanjing University School of Medicine
| | | | - Chan Gao
- Medical Affairs, 3D Medicines Inc
| | | | | | - Shun Lu
- Shanghai Chest Hospital, Shanghai Lung Cancer Center, Shanghai Jiao Tong University
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12
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Sun H, Chen Q, Liu W, Liu Y, Ruan S, Zhu C, Ruan Y, Ying S, Lin P. TROP2 modulates the progression in papillary thyroid carcinoma. J Cancer 2021; 12:6883-6893. [PMID: 34659576 PMCID: PMC8518010 DOI: 10.7150/jca.62461] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 09/18/2021] [Indexed: 12/18/2022] Open
Abstract
Background: Tumor-associated calcium signal transducer 2 (TROP2) is over expressed in various kinds of human cancers and plays important roles in the proliferation, invasion and metastasis of tumor cells. However, the expression and molecular mechanism of TROP2 in thyroid papillary carcinoma (PTC) are unclear. Methods: The expressions of TROP2 in PTC and control tissue were detected by real-time reverse transcription polymerase chain reaction (RT-PCR) and immunohistochemistry. The proliferation and invasion of PTC cell lines were examined by cell cloning and transwell assays. RNA sequencing analysis and public data analysis were assessed to investigate the potential mechanisms of TROP2 in PTC. Gene correlation analysis was conducted to explore the association between TROP2 and the related gene ISG15 in patients with PTC. Results: The expression of TROP2 was significantly higher in PTC than control. The high expression of TROP2 protein was associated with lymph node metastasis, tumor size and capsular infiltration (P<0.05). SiRNA-mediated TROP2 gene expression silencing can significantly inhibit proliferation and migration of PTC cells. ISG15 decreased in TROP2 siRNA PTC cells and increased in PTC patients significantly. There was a significant correlation between the expression of TROP2 and ISG15 in PTC patients. TROP2 interacted directly with ATP6V1A, CEBPA and SOX5 and then further interacted with the immune genes. TROP2 expression and tumor-infiltrating immune cells were also correlated in thyroid cancer microenvironment. Conclusions: TROP2 promotes the development of PTC. TROP2 expression was correlated with ISG15 and tumor-infiltrating immune cells in thyroid cancer.
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Affiliation(s)
- Huali Sun
- Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, P. R. China
| | - Qi Chen
- Precision Medicine Center, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, P. R. China
| | - Weiping Liu
- Nuclear Medicine Department, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, P. R. China
| | - Yanmei Liu
- Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, P. R. China
| | - Sihan Ruan
- Precision Medicine Center, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, P. R. China
| | - Chumeng Zhu
- Precision Medicine Center, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, P. R. China
| | - Yanyun Ruan
- Precision Medicine Center, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, P. R. China
| | - Shenpeng Ying
- Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, P. R. China
| | - Peipei Lin
- Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, P. R. China
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13
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Jia Z, Wang Y, Wang Y, Wang W, Ye J, Li B, Han-Zhang H, Zhao J, Zhang X, Peng F, Chen F, Chen X, Lu Y, Ying S, Wu D, Zhang X, Ma C, Lai L, Ma S, Zhang S, Liu P, Liang N. MA08.09 Clinical Management of Lung Adenocarcinoma Patients With HER2 V659E Mutation. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.195] [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: 11/30/2022]
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14
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Jia Z, Xing J, Li J, Wang W, Wang Y, Song Y, Yang X, Xue J, Ye J, Li B, Han-Zhang H, Zhao J, Zhang X, Peng F, Chen F, Chen X, Lu Y, Ying S, Wu D, Zhang X, Ma C, Lai L, Ma S, Liang D, Liu P, Li X, Liang N, Li S. HER2 transmembrane domain mutation: comprehensive characteristics and real-world evidence of treatment response in Chinese lung adenocarcinoma. Transl Lung Cancer Res 2021; 10:1383-1396. [PMID: 33889517 PMCID: PMC8044484 DOI: 10.21037/tlcr-21-107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Background HER2 transmembrane domain (TMD) mutation has been reported as a rare driver mutation associated with advanced stage disease and a poor prognosis in patients with lung adenocarcinoma (LUAD). We aimed to comprehensively profile the genetic landscape and treatment response information of HER2 TMD-mutant LUAD. Methods An in-house database of 7,812 LUAD patients was screened for mutation prevalence. A multi-center cohort of 16 HER2 V659E-mutant patients and an external cohort of 38 HER2-mutant patients from cBioPortal with overall survival (OS) data were analyzed. Eight patients from the in-house cohort were included in the real-world study of treatment response. Molecular docking simulation and binding affinity prediction were performed. Results In Chinese LUAD, the prevalence of HER2 TMD mutation was 0.18% (14/7,812), and 0.14% (11/7,812) for the HER2 V659E mutation. The most recurrent co-alteration was TP53 mutation (n=4, 25%) and HER2 amplification (n=2, 12.5%). TMD-mutant patients were diagnosed at more advance stages (P<0.001) and had poorer OS (median OS 10.0 vs. 61.6 months, HR =7.9, 95% CI: 1.0-61.0, P<0.001) than non-TMD mutations. The overall response rate of targeted therapy, chemo-based therapy, and immunotherapy was 57.1%, 22.2%, and 0%, respectively. We postulated to challenge the resistance of tyrosine kinase inhibitor (TKI) with another with stronger binding energy to HER2 and supported the conclusion with a successful case. Additionally, we demonstrated a three-month response to the off-label use of pyrotinib in fifth-line therapy. Conclusions Comapred with non-TMD mtuations, HER2 TMD mutation is a rare driver mutation with poorer prognosis in LUAD. Targeted therapy is the dominant choice for patients harboring this targetable mutation and longer OS could possibly be achieved through rechallenge with TKI of stronger binding affinity. Response to fifth-line pyrotinib was observed.
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Affiliation(s)
- Ziqi Jia
- Department of Thoracic Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China.,Eight-Year MD Program, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Jiahua Xing
- School of Medicine, Nankai University, Tianjin, China
| | - Ji Li
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Weiwei Wang
- Department of Thoracic Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Yadong Wang
- Department of Thoracic Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Yang Song
- Department of Thoracic Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Xiaoying Yang
- Department of Thoracic Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China.,Eight-Year MD Program, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Jianchao Xue
- Department of Thoracic Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Junyi Ye
- Department of Biostatistics, Burning Rock Biotech Co. Ltd., Guangzhou, China
| | - Bing Li
- Department of Biostatistics, Burning Rock Biotech Co. Ltd., Guangzhou, China
| | - Han Han-Zhang
- Department of Medicine, Burning Rock Biotech Co. Ltd., Guangzhou, China
| | - Jiaxing Zhao
- Department of Medicine, Burning Rock Biotech Co. Ltd., Guangzhou, China
| | - Xiaochun Zhang
- Precision Medicine Center of Cancer, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Feng Peng
- Department of Thoracic Cancer, Cancer Center, West China Hospital, S.C.U., Chengdu, China
| | - Fengxia Chen
- Department of Thoracic Surgery, Hainan General Hospital, Haikou, China
| | - Xueqin Chen
- Department of Oncology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yan Lu
- Department of Oncology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Shenpeng Ying
- Department of Radiotherapy, Taizhou Central Hospital, Affiliated Hospital of Taizhou University, Taizhou, China
| | - Dongping Wu
- Department of Radiation Oncology, Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing, China
| | - Xinwei Zhang
- Department of Biotherapy, Cancer Institute and Hospital, Tianjin Medical University, Tianjin, China
| | - Caixia Ma
- XtalPi, XtalPi AI Research Center, Beijing, Chinal
| | - Lipeng Lai
- XtalPi, XtalPi AI Research Center, Beijing, Chinal
| | - Songling Ma
- XtalPi, XtalPi AI Research Center, Beijing, Chinal
| | - Dianjing Liang
- Institute of Physics, Humboldt University of Berlin, Berlin, Germany
| | - Peng Liu
- Medical Research Center, Central Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Xiaoguang Li
- Minimally Invasive Tumor Therapies Center, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Naixin Liang
- Department of Thoracic Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Shanqing Li
- Department of Thoracic Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
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Ying S, Dai Z, Xi Y, Li M, Yan J, Yu J, Chen Z, Shi Z. Metabolomic evaluation of serum metabolites of geese reared at different stocking densities. Br Poult Sci 2021; 62:304-309. [PMID: 33336589 DOI: 10.1080/00071668.2020.1849556] [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] [Indexed: 10/22/2022]
Abstract
1. Stocking density is an issue for poultry production. High stocking density can impact biochemical parameters, production, and reproductive performance; however, information regarding the effects of stocking density on serum metabolites in geese is limited.2. Twenty-day-old, Sanhua male geese (n = 240) were allocated to one of two experimental groups for 50 days. One group was housed under a low stocking density (LSD; two birds per m2) and one under a high stocking density (HSD; five birds per m2). Body weight and feed intake were recorded every 10 d. Eight serum samples per group were used for metabonomic analysis by liquid chromatography-mass spectrometry.3. Stocking density did not affect the spleen, liver, thymus, or bursa of Fabricius weights after 50 d. Feed intake and body weight was significantly lower in geese from the HSD group versus the LSD group (P < 0.05). Thirty-six differential serum metabolites were identified (P < 0.05), indicating altered amino acid, carbohydrate, lipid and vitamin cofactor metabolism.4. The results demonstrated that high-density stocking impacts geese, and provides insights into the mechanisms underlying the adverse health effects associated with HSD.
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Affiliation(s)
- S Ying
- Institute of Animal Science, Laboratory of Animal Improvement and Reproduction, Jiangsu Academy of Agricultural Sciences, Nanjing, PR China.,Key Laboratory for Protected Agricultural Engineering in the Middle and Lower Reaches of Yangtze River, Ministry of Agriculture, Nanjing, PR China
| | - Z Dai
- Institute of Animal Science, Laboratory of Animal Improvement and Reproduction, Jiangsu Academy of Agricultural Sciences, Nanjing, PR China.,Key Laboratory for Protected Agricultural Engineering in the Middle and Lower Reaches of Yangtze River, Ministry of Agriculture, Nanjing, PR China
| | - Y Xi
- Institute of Animal Science, Laboratory of Animal Improvement and Reproduction, Jiangsu Academy of Agricultural Sciences, Nanjing, PR China.,Key Laboratory for Protected Agricultural Engineering in the Middle and Lower Reaches of Yangtze River, Ministry of Agriculture, Nanjing, PR China
| | - M Li
- Institute of Animal Science, Laboratory of Animal Improvement and Reproduction, Jiangsu Academy of Agricultural Sciences, Nanjing, PR China.,Key Laboratory for Protected Agricultural Engineering in the Middle and Lower Reaches of Yangtze River, Ministry of Agriculture, Nanjing, PR China
| | - J Yan
- Institute of Animal Science, Laboratory of Animal Improvement and Reproduction, Jiangsu Academy of Agricultural Sciences, Nanjing, PR China.,Key Laboratory for Protected Agricultural Engineering in the Middle and Lower Reaches of Yangtze River, Ministry of Agriculture, Nanjing, PR China
| | - J Yu
- Institute of Animal Science, Laboratory of Animal Improvement and Reproduction, Jiangsu Academy of Agricultural Sciences, Nanjing, PR China.,Key Laboratory for Protected Agricultural Engineering in the Middle and Lower Reaches of Yangtze River, Ministry of Agriculture, Nanjing, PR China
| | - Z Chen
- Institute of Animal Science, Laboratory of Animal Improvement and Reproduction, Jiangsu Academy of Agricultural Sciences, Nanjing, PR China.,Key Laboratory for Protected Agricultural Engineering in the Middle and Lower Reaches of Yangtze River, Ministry of Agriculture, Nanjing, PR China
| | - Z Shi
- Institute of Animal Science, Laboratory of Animal Improvement and Reproduction, Jiangsu Academy of Agricultural Sciences, Nanjing, PR China.,Key Laboratory for Protected Agricultural Engineering in the Middle and Lower Reaches of Yangtze River, Ministry of Agriculture, Nanjing, PR China
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16
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Sun H, Chen Q, Liu W, Liu Y, Ruan S, Zhu C, Ruan Y, Ying S, Lin P. TROP2 modulates the progression in papillary thyroid carcinoma. J Cancer 2021. [DOI: 10.7150/jca.62461
expr 990488104 + 881341066] [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: 03/16/2023] Open
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17
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Sun H, Chen Q, Liu W, Liu Y, Ruan S, Zhu C, Ruan Y, Ying S, Lin P. TROP2 modulates the progression in papillary thyroid carcinoma. J Cancer 2021; 12. [PMID: 34659576 PMCID: PMC8518010 DOI: 10.7150/jca.62461&set/a 833480617+850328715] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023] Open
Abstract
Background: Tumor-associated calcium signal transducer 2 (TROP2) is over expressed in various kinds of human cancers and plays important roles in the proliferation, invasion and metastasis of tumor cells. However, the expression and molecular mechanism of TROP2 in thyroid papillary carcinoma (PTC) are unclear. Methods: The expressions of TROP2 in PTC and control tissue were detected by real-time reverse transcription polymerase chain reaction (RT-PCR) and immunohistochemistry. The proliferation and invasion of PTC cell lines were examined by cell cloning and transwell assays. RNA sequencing analysis and public data analysis were assessed to investigate the potential mechanisms of TROP2 in PTC. Gene correlation analysis was conducted to explore the association between TROP2 and the related gene ISG15 in patients with PTC. Results: The expression of TROP2 was significantly higher in PTC than control. The high expression of TROP2 protein was associated with lymph node metastasis, tumor size and capsular infiltration (P<0.05). SiRNA-mediated TROP2 gene expression silencing can significantly inhibit proliferation and migration of PTC cells. ISG15 decreased in TROP2 siRNA PTC cells and increased in PTC patients significantly. There was a significant correlation between the expression of TROP2 and ISG15 in PTC patients. TROP2 interacted directly with ATP6V1A, CEBPA and SOX5 and then further interacted with the immune genes. TROP2 expression and tumor-infiltrating immune cells were also correlated in thyroid cancer microenvironment. Conclusions: TROP2 promotes the development of PTC. TROP2 expression was correlated with ISG15 and tumor-infiltrating immune cells in thyroid cancer.
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Affiliation(s)
- Huali Sun
- Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, P. R. China
| | - Qi Chen
- Precision Medicine Center, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, P. R. China
| | - Weiping Liu
- Nuclear Medicine Department, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, P. R. China
| | - Yanmei Liu
- Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, P. R. China
| | - Sihan Ruan
- Precision Medicine Center, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, P. R. China
| | - Chumeng Zhu
- Precision Medicine Center, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, P. R. China
| | - Yanyun Ruan
- Precision Medicine Center, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, P. R. China
| | - Shenpeng Ying
- Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, P. R. China
| | - Peipei Lin
- Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, P. R. China
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Abstract
1.The objective of the experiment was to analyse serum profiles of goslings with visceral gout and compare them with those of healthy individuals to identify differentially-abundant metabolites as potential biomarkers. 2.Untargeted gas chromatography and time-of-flight mass spectrometry (GC-TOF-MS) metabolomic profiling was used to compare the serum metabolome of 15 goslings (Anser cygnoides) with gout and 15 healthy goslings (control). 3.Goslings with gout had a metabolic profile distinct from that of the controls, with 45 metabolite levels differing significantly (VIP > 1; P < 0.05) between both groups. Nine metabolites (hydrocortisone, glucose, trans-4-hydroxy-L-proline, galactose, 2-deoxy-D-galactose, beta-mannosylglycerate, d-glucoheptose, zymosterol, and hypoxanthine) were selected through receiver operating characteristics (ROC) analysis (area under curve (AUC) score ≥0.85) as potential biomarkers. Pathway analysis revealed that metabolites with differing levels were mainly involved in galactose, arginine and proline and purine metabolisms. 4.These results provided new insights into the pathogenesis of gout. Increased xanthine and hypoxanthine with decreased hydrocortisone provide promising biomarkers for gosling gout diagnosis. The findings suggested that hepatic metabolic disorders frequently occur in the development of avian gout.
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Affiliation(s)
- Y Xi
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Animal Husbandry Institute, Jiangsu Academy of Agricultural Sciences , Nanjing, China
| | - S Ying
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Animal Husbandry Institute, Jiangsu Academy of Agricultural Sciences , Nanjing, China
| | - C Shao
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Animal Husbandry Institute, Jiangsu Academy of Agricultural Sciences , Nanjing, China
| | - H Zhu
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Animal Husbandry Institute, Jiangsu Academy of Agricultural Sciences , Nanjing, China
| | - J Yan
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Animal Husbandry Institute, Jiangsu Academy of Agricultural Sciences , Nanjing, China
| | - Z Shi
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Animal Husbandry Institute, Jiangsu Academy of Agricultural Sciences , Nanjing, China
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Jia Z, Liang N, Wang Y, Wang Y, Ye J, Wang W, Li B, Han-Zhang H, Zhao J, Zhang X, Peng F, Chen F, Chen X, Lu Y, Ying S, Dp W, Zhang X, Ma C, Lai L, Ma S. Clinical management of lung adenocarcinoma patients with HER2 V659E mutation. J Clin Oncol 2020. [DOI: 10.1200/jco.2020.38.15_suppl.e21521] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
e21521 Background: ERBB2 mutations, mostly affecting the kinase domain (KD), were later found in the transmembrane domain (TMD), most frequently seen in residues V659, G660, but with a much lower prevalence. Comparing to other solid tumors, ERBB2-mutant NSCLC shows a lower response rate to HER2 inhibitors (HER2i). ERBB2 V659E has been reported to respond to lapatinib in combination with carpecitabine, afatinib, or ado-trastuzumab emtansine (TDM-1). However, since the prevalence of ERBB2 V659E is low, no study has reported the subsequent clinical management after developing resistance to HER2i. Methods: We retrospectively screened genomic profiles of 7,812 lung adenocarcinoma (LADC) patients. Molecular docking of lapatinib, afatinib and pyrotinib with the HER2 KD was simulated with AutoDock 4.2 and the binding affinity was predicted by MMPBSA.py program in AmberTools18. Results: We analyzed NGS data of 7812 LADC patients and identified 14 patients (0.18%) with HER2 TMD mutation, mostly V659E mutation (11/7812, 0.14%); other mutations included V664F, T652M, V664F; each occurred in 1 patient. In this cohort, all adenocarcinomas harbor a dinucleotide missense mutation, including 10 TT→AA and 6 TT→AG (c.1976_1977). T P53 was the most frequently co-mutated gene (n = 4) followed by HER2 (n = 2), NSD1 (n = 2) and RARA (n = 2). Treatment history of 9 advanced LADC patients were collected and analyzed. 3 of them had chemotherapy as first-line therapy. 5 patients were treated with HERi as first-line therapy, achieving a median PFS of 192 days (ranged from 60-515days), comparing to patients treated with chemotherapy (71.7±53.3days). 1 patient who was treated with different HERi sequentially in the order of lapatinib, afatinib, TDM-1, achieving an overall PFS of 515 days. Subsequently, she was treated with pyrotinib and had a PFS of 92 days. Molecular docking simulation showed the covalent inhibitors Afatinib and Pyrotinib are more favorable for blocking HER2 KD than non-covalent inhibitor Lapatinib. Between the two covalent inhibitors, Pyrotinib (∆GPyrotinib = -65.92kcal/mol) shows stronger non-covalent binding ability than Afatinib (∆GAfatinib = -59.71 kcal/mol) (p < 0.001). Conclusions: To the best of our knowledge, this is the largest-reported HER2 V659E mutation cohort. We revealed the prevalence of ERBB2 V659E in Chinese LUAD patients and elucidated the genomic profile of ERBB2 V659E mutant. This study paves avenue for the utilization of the novel HER2 inhibitors pyrotinib in ERBB2 V659E mutant LUAD patients.
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Affiliation(s)
- Ziqi Jia
- Department of Thoracic Surgery,Peking Union Medical College Hospital,Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Naixin Liang
- Department of Thoracic Surgery,Peking Union Medical College Hospital,Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yadong Wang
- Department of Thoracic Surgery,Peking Union Medical College Hospital,Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yanyu Wang
- Department of Thoracic Surgery,Peking Union Medical College Hospital,Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Junyi Ye
- Burning Rock Biotech, Guangzhou, China
| | - Weiwei Wang
- Department of Thoracic Surgery,Peking Union Medical College Hospital,Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Bing Li
- Burning Rock Biotech, Guangzhou, China
| | | | | | - Xiaochun Zhang
- The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Feng Peng
- Department of Thoracic Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, PE, China
| | - Fengxia Chen
- Department of Thoracic Surgery, Hainan General Hospital, Haikou, Hainan, China
| | - Xueqin Chen
- Department of Medical Oncology, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yan Lu
- Department of Oncology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Shenpeng Ying
- Department of Radiotherapy, Taizhou Central Hospital, Taizhou University Hospital, Taizhou, China
| | - Wu Dp
- Department of Radiation Oncology, Shaoxing People’s Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing, China
| | - Xinwei Zhang
- Tianjin Medical University Cancer Hospital & Institute, Tianjin, China
| | - Caixia Ma
- XtalPi AI Research Center, Beijing, China
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Zang YS, Jiao XD, Zhang XC, Qin B, Liu D, Liu L, Ni J, Ning Z, Chen L, Zhu L, Qin S, Zhou J, Ying S, Chen X, Li A, Hou T, Lizaso A, Zhang HH, Liu K, Wang Z. Tumour mutation burden analysis in a 5660-cancer-patient cohort reveals cancer type-specific mechanisms for high mutation burden. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz431.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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21
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Liang Y, Wang Y, Ma L, Zhong Z, Yang X, Tao X, Chen X, He Z, Yang Y, Zeng K, Kang R, Gong J, Ying S, Lei Y, Pang J, Lv X, Gu Y. Comparison of microRNAs in adipose and muscle tissue from seven indigenous Chinese breeds and Yorkshire pigs. Anim Genet 2019; 50:439-448. [PMID: 31328299 DOI: 10.1111/age.12826] [Citation(s) in RCA: 7] [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] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/24/2019] [Indexed: 01/29/2023]
Abstract
Elucidation of the pig microRNAome is essential for interpreting functional elements of the genome and understanding the genetic architecture of complex traits. Here, we extracted small RNAs from skeletal muscle and adipose tissue, and we compared their expression levels between one Western breed (Yorkshire) and seven indigenous Chinese breeds. We detected the expression of 172 known porcine microRNAs (miRNAs) and 181 novel miRNAs. Differential expression analysis found 92 and 12 differentially expressed miRNAs in adipose and muscle tissue respectively. We found that different Chinese breeds shared common directional miRNA expression changes compared to Yorkshire pigs. Some miRNAs differentially expressed across multiple Chinese breeds, including ssc-miR-129-5p, ssc-miR-30 and ssc-miR-150, are involved in adipose tissue function. Functional enrichment analysis revealed that the target genes of the differentially expressed miRNAs are associated mainly with signaling pathways rather than metabolic and biosynthetic processes. The miRNA-target gene and miRNA-phenotypic traits networks identified many hub miRNAs that regulate a large number of target genes or phenotypic traits. Specifically, we found that intramuscular fat content is regulated by the greatest number of miRNAs in muscle tissue. This study provides valuable new candidate miRNAs that will aid in the improvement of meat quality and production.
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Affiliation(s)
- Y Liang
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, 610066, Sichuan Province China
| | - Y Wang
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, 610066, Sichuan Province China
| | - L Ma
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences, Chengdu, 610052, Sichuan Province China
| | - Z Zhong
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, 610066, Sichuan Province China
| | - X Yang
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, 610066, Sichuan Province China
| | - X Tao
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, 610066, Sichuan Province China
| | - X Chen
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, 610066, Sichuan Province China
| | - Z He
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, 610066, Sichuan Province China
| | - Y Yang
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, 610066, Sichuan Province China
| | - K Zeng
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, 610066, Sichuan Province China
| | - R Kang
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, 610066, Sichuan Province China
| | - J Gong
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, 610066, Sichuan Province China
| | - S Ying
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, 610066, Sichuan Province China
| | - Y Lei
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, 610066, Sichuan Province China
| | - J Pang
- Chengdu Biotechservice Institute, Chengdu, 610041, Sichuan Province China
| | - X Lv
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, 610066, Sichuan Province China
| | - Y Gu
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, 610066, Sichuan Province China
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Jiao X, Zhang X, Qin B, Liu D, Liu L, Ni J, Zhou N, Chen L, Zhu L, Qin S, Zhou J, Ying S, Chen X, Li A, Hou T, Zhang T, Chuai S, Zang YS. Tumor mutation burden analysis in a 5,660 cancer patient cohort reveals cancer type-specific mechanisms for high mutation burden. J Clin Oncol 2019. [DOI: 10.1200/jco.2019.37.15_suppl.2589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
2589 Background: Tumor mutation burden (TMB), calculated by whole-exome sequencing (WES) or large NGS panels, has an important association with immunotherapy responses. Elucidating the underlying biological mechanisms of high TMB might help develop more precise and effective means for TMB and immunotherapy response prediction. Meanwhile, the landscape of TMB across different cancer types and its association with other molecular features have not been well investigated in large cohorts in China. Methods: Cancer patients whose fresh tissue (n = 1556), formalin-fixed, paraffin-embed (FFPE) specimen (n = 1794), and pleural fluid (n = 84) were profiled using 295- or 520-gene NGS panel. The association of the TMB status with a series of molecular features and biological pathways was interrogated using bootstrapping. Results: TMB, measured by 295- or 520-cancer-related gene panels, were correlated with WES TMB based on in silico simulation in the TCGA cohort. We compared the TMB landscape across 11 cancer type groups and found the highest average TMB in lung squamous cell carcinoma, whereas the lowest TMB was established in sarcoma. High microsatellite instability, DNA damage response deficiency, and homologous recombination repair deficiency indicated significantly higher TMB. The independent predictive power for TMB of twenty-six biological pathways was tested in 10 cancer groups. FoxO signaling pathway most commonly correlated with low-TMB; significant association was identified in four cancer groups. In contrast, no pathway was significantly correlated with high-TMB in more than two cancer groups. Overall, we discovered that the underlying pathways which may be the main drivers of TMB status varied greatly and sometimes had an opposite association with TMB across different cancer types. Moreover, we developed a 14- and 22-gene signature for TMB prediction for LUAD and LUSC, respectively, with only 10 genes shared by both signatures, indicating a histology-specific mechanism for driving high-TMB in lung cancer. Conclusions: The findings extended the knowledge of the underlying biological mechanisms for high TMB and might be helpful for developing more precise and accessible TMB assessment panels and algorithms in more cancer types.
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Affiliation(s)
- Xiaodong Jiao
- Department of Medical Oncology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Xiaochun Zhang
- The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Baodong Qin
- Department of Medical Oncology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Dong Liu
- The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Liang Liu
- Departments of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Jianjiao Ni
- Departments of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Ningyu Zhou
- Department of Integrative Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Lingxiang Chen
- Department of Internal Medicine, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Liangjun Zhu
- Department of Internal Medicine, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Songbing Qin
- Department of Tumor Radiotherapy, The First Affiliated Hospital of Suzhou University, Suzhou, China
| | - Jianya Zhou
- Department of Respiratory Medicine, The First Affiliated Hospital of Zhejiang University, Hangzhou, China
| | - Shenpeng Ying
- Department of Radiotherapy, Taizhou Central Hospital, Taizhou University Hospital, Taizhou, China
| | - Xueqin Chen
- Department of Medical Oncology, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Aijun Li
- Department of Hepatobiliary Surgery, Eastern Hepatobiliary Surgery Hospital, The Second Military Medical University, Shanghai, China
| | - Ting Hou
- Burning Rock Biotech, Guangzhou, China
| | | | | | - Yuan-Sheng Zang
- Department of Medical Oncology, Changzheng Hospital, Second Military Medical University, Shanghai, China
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23
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Chen Q, Hu W, Xiong H, Ying S, Ruan Y, Wu B, Lu H. Changes in plasma EBV-DNA and immune status in patients with nasopharyngeal carcinoma after treatment with intensity-modulated radiotherapy. Diagn Pathol 2019; 14:23. [PMID: 30871579 PMCID: PMC6417170 DOI: 10.1186/s13000-019-0798-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 03/04/2019] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Previous studies reported the early diagnostic values of plasma Epstein-Barr virus (EBV)-DNA. The present study aimed to assess the relationship between the concentration of plasma EBV-DNA and the number of CD8+PD-1+(programmed cell death-1,PD-1) and regulatory T (Treg) cells in patients with nasopharyngeal carcinoma (NPC) who were treated with intensity-modulated radiotherapy (IMRT). METHODS This study included 37 patients treated with IMRT. Peripheral blood samples were collected two times for each patient, before radiation therapy and 1 week after the treatment. Further, the numbers of CD4+, Treg, CD8+, and CD8+PD1+ cells were determined by flow cytometry. RESULTS The changes after IMRT were determined by comparing the numbers of neutrophils, lymphocytes, CD4+, Treg, CD8+, CD8+PD1+ cells, and the concentration of plasma EBV-DNA between pretreatment and post-treatment groups. IMRT could reduce the expression level of PD-1 and the number of Treg cells. The concentration of plasma EBV-DNA and the expression level of CD8+PD-1+ were closely associated with the occurrence and development of NPC. Thus, EBV-DNA can be used as an important marker for early diagnosis, and IMRT can strongly reduce the copies of EBV-DNA. CONCLUSIONS This study showed that IMRT could reverse T-cell exhaustion and reduce the copies of EBV-DNA. In clinical practice, plasma EBV-DNA is a sensitive biomarker for diagnosis, prognosis, and evaluation of clinical efficacy.
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Affiliation(s)
- Qi Chen
- Precision Medicine Center, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, People's Republic of China
| | - Wei Hu
- Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, 318000, People's Republic of China
| | - Huacai Xiong
- Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, 318000, People's Republic of China
| | - Shenpeng Ying
- Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, 318000, People's Republic of China
| | - Yanyun Ruan
- Precision Medicine Center, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, People's Republic of China
| | - Bo Wu
- Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, 318000, People's Republic of China
| | - Hongsheng Lu
- Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, 318000, People's Republic of China. .,Department of Pathology, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, People's Republic of China.
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24
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Ying S, Ke H, Ding Y, Liu Y, Tang X, Yang D, Li M, Liu J, Yu B, Xiang J, Mao X, Han-Zhang H, Hu W, Chen L. Unique genomic profiles obtained from cerebrospinal fluid cell-free DNA of non-small cell lung cancer patients with leptomeningeal metastases. Cancer Biol Ther 2018; 20:562-570. [PMID: 30395779 DOI: 10.1080/15384047.2018.1538614] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Leptomeningeal metastases (LM), associated with poor prognosis, are frequent complications of advanced non-small cell lung cancer (NSCLC) patients, especially in patients with epidermal growth factor receptor (EGFR) mutations. Due to limited access to leptomeningeal lesions, the mutational landscape of LM has not been comprehensively investigated in large cohorts and the underlining biology of LM remains elusive. Some studies have explored the potential of cerebrospinal fluid (CSF) in reflecting the molecular profile of LM but with limited number of patients enrolled. METHODS In this study, we performed capture-based targeted sequencing using a panel consisting of 168 lung cancer-related genes on matched CSF and plasma samples from 72 advanced NSCLC patients with confirmed LM to interrogate the potential of CSF as a source of liquid biopsy. RESULTS We revealed a rate of detection of 81.5% and 62.5% for CSF and plasma, respectively (p = 0.008). The maximum allelic fraction (MaxAF) was also significantly higher in CSF (43.6% vs. 4.6%) (p < 0.001). CSF, harboring a unique genomic profile by having a significant number of CSF-specific mutations, primarily copy number variations, is superior to plasma in reflecting the mutational profile of LM. Further pathway enrichment analysis revealed that most of CSF-specific mutations participated in pathways relevant to the tumorigenesis and the development of metastases. Moreover, our data also revealed that TP53 loss of heterozygosity (LOH) predominantly existed in CSF (p < 0.001). CONCLUSIONS Collectively, we demonstrated that CSF provides a more comprehensive profile of LM than plasma in a large cohort, thus can be used as an alternative source of liquid biopsy for LM patients.
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Affiliation(s)
- Shenpeng Ying
- a Department of Radiotherapy, Taizhou Central Hospital , Affiliated Hospital of Taizhou University , Taizhou , China
| | - Honggang Ke
- b Department of Cardiothoracic Surgery , Affiliated Hospital of Nantong University , Nantong , China
| | - Yan Ding
- a Department of Radiotherapy, Taizhou Central Hospital , Affiliated Hospital of Taizhou University , Taizhou , China
| | - Yanmei Liu
- a Department of Radiotherapy, Taizhou Central Hospital , Affiliated Hospital of Taizhou University , Taizhou , China
| | - Xiaowan Tang
- c Department of Hematology and Oncology , The First People's Hospital of Taizhou , Taizhou , China
| | - Dongyong Yang
- d Department of Respiration , Second Affiliated Hospital of Fujian Medical University , Quanzhou , China
| | - Min Li
- e Department of Medicine, Burning Rock Biotech , Guangzhou , China
| | - Junjun Liu
- e Department of Medicine, Burning Rock Biotech , Guangzhou , China
| | - Bing Yu
- e Department of Medicine, Burning Rock Biotech , Guangzhou , China
| | - Jianxing Xiang
- e Department of Medicine, Burning Rock Biotech , Guangzhou , China
| | - Xinru Mao
- e Department of Medicine, Burning Rock Biotech , Guangzhou , China
| | - Han Han-Zhang
- e Department of Medicine, Burning Rock Biotech , Guangzhou , China
| | - Wei Hu
- a Department of Radiotherapy, Taizhou Central Hospital , Affiliated Hospital of Taizhou University , Taizhou , China
| | - Lili Chen
- c Department of Hematology and Oncology , The First People's Hospital of Taizhou , Taizhou , China
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25
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Huang Q, Ma XC, Yang X, Wang W, Li Y, Lv Z, Corrigan CJ, Chen Y, Ying S. Expression of IL-17A, E, and F and their receptors in non-small-cell lung cancer. J BIOL REG HOMEOS AG 2018; 32:1105-1116. [PMID: 30334403] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Lung cancer is the leading cause of cancer-related morbidity and mortality worldwide. Interaction of nascent or established lung tumour cells with various cytokines and infiltrating immune cells has been implicated in lung cancer pathogenesis. In this study, we systematically analysed immunoreactivity for IL-17A, IL-17E and IL-17F and their relevant receptors in the lung sections from non-small cell lung cancer (NSCLC) and normal control. Immunoreactivity for IL-17A, IL-17F, IL-17RA and IL- 17RC, but not IL-17RB was significantly elevated in NSCLC compared with controls, while IL-17E was reduced. The median numbers of infiltrating lymphocytes and neutrophils and global macrophage (CD68) immunoreactivity of phagocytes were also elevated in NSCLC compared with control tissue sections. Furthermore, correlation between the expression of IL-17A and its receptors IL-17RA and IL- 17RC varied according to NSCLC histopathological type. These data suggest that IL-17A, E, F and their receptors IL-17RA, RB, RC may be involved in the pathogenesis of NSCLC. Further understanding of the relationship between the IL-17/IL-17R axis and the tumour inflammatory microenvironment may reveal new therapeutic targets.
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Affiliation(s)
- Q Huang
- Department of Immunology, School of Basic Medical Sciences, Capital Medical University, You An Men, Beijing, P. R. China
| | - X C Ma
- Department of Chest Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing, P. R. China
| | - X Yang
- Department of Respiratory Medicine, Beijing Tongren Hospital, Capital Medical University, P. R. China
| | - W Wang
- Department of Immunology, School of Basic Medical Sciences, Capital Medical University, You An Men, Beijing, P. R. China
| | - Y Li
- Department of Immunology, School of Basic Medical Sciences, Capital Medical University, You An Men, Beijing, P. R. China
| | - Z Lv
- Department of Immunology, School of Basic Medical Sciences, Capital Medical University, You An Men, Beijing, P. R. China
| | - C J Corrigan
- King's College London, MRC and Asthma UK Centre in Allergic Mechanisms of Asthma, Division of Asthma, Allergy and Lung Biology, London, UK
| | - Y Chen
- Department of Immunology, School of Basic Medical Sciences, Capital Medical University, You An Men, Beijing, P. R. China
| | - S Ying
- Department of Immunology, School of Basic Medical Sciences, Capital Medical University, You An Men, Beijing, P. R. China
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26
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Wu X, Hu H, Ying S, Guo X. 3:18 PM Abstract No. 401 Efficacy and safety of CalliSpheres ® drug-eluting beads transarterial chemoembolization in patients with secondary liver cancer: a preliminary result from CTILC study. J Vasc Interv Radiol 2018. [DOI: 10.1016/j.jvir.2018.01.445] [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: 10/17/2022] Open
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27
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Sui T, Salvati E, Ying S, Sun G, Dolbnya IP, Dragnevski K, Prisacariu C, Korsunsky AM. Strain softening of nano-scale fuzzy interfaces causes Mullins effect in thermoplastic polyurethane. Sci Rep 2017; 7:916. [PMID: 28428544 PMCID: PMC5430512 DOI: 10.1038/s41598-017-00904-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [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: 12/12/2016] [Accepted: 03/16/2017] [Indexed: 11/23/2022] Open
Abstract
The strain-induced softening of thermoplastic polyurethane elastomers (TPUs), known as the Mullins effect, arises from their multi-phase structure. We used the combination of small- and wide- angle X-ray scattering (SAXS/WAXS) during in situ repeated tensile loading to elucidate the relationship between molecular architecture, nano-strain, and macro-scale mechanical properties. Insights obtained from our analysis highlight the importance of the ‘fuzzy interface’ between the hard and soft regions that governs the structure evolution at nanometre length scales and leads to macroscopic stiffness reduction. We propose a hierarchical Eshelby inclusion model of phase interaction mediated by the ‘fuzzy interface’ that accommodates the nano-strain gradient between hard and soft regions and undergoes tension-induced softening, causing the Mullins effect that becomes apparent in TPUs even at moderate tensile strains.
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Affiliation(s)
- T Sui
- MBLEM, Department of Engineering Science, University of Oxford, Parks Road, Oxford, OX1 3PJ, UK
| | - E Salvati
- MBLEM, Department of Engineering Science, University of Oxford, Parks Road, Oxford, OX1 3PJ, UK
| | - S Ying
- MBLEM, Department of Engineering Science, University of Oxford, Parks Road, Oxford, OX1 3PJ, UK
| | - G Sun
- MBLEM, Department of Engineering Science, University of Oxford, Parks Road, Oxford, OX1 3PJ, UK.,State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, Hubei, 430071, China
| | - I P Dolbnya
- Diamond Light Source, Harwell Campus, Didcot, OX11 0DE, UK
| | - K Dragnevski
- MBLEM, Department of Engineering Science, University of Oxford, Parks Road, Oxford, OX1 3PJ, UK
| | - C Prisacariu
- Institute of Macromolecular Chemistry "Petru Poni", Aleea Grigore Ghica Voda, Nr. 41A, Iasi, 700487, Romania
| | - A M Korsunsky
- MBLEM, Department of Engineering Science, University of Oxford, Parks Road, Oxford, OX1 3PJ, UK.
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28
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Ying S, Wang J, Xu C, Kang Y, Zhang X, Shi L, Fan L, Wang Z, Zhou J, Wu X, Wu J, Li W, Liang G. Design, synthesis, and antiproliferative activity assessment of non-ATP-competitive fibroblast growth factor receptor 1 inhibitors. RUSS J GEN CHEM+ 2017. [DOI: 10.1134/s1070363216120355] [Citation(s) in RCA: 2] [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: 11/23/2022]
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29
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Siew LQC, Wu SY, Ying S, Corrigan CJ. Cigarette smoking increases bronchial mucosal IL-17A expression in asthmatics, which acts in concert with environmental aeroallergens to engender neutrophilic inflammation. Clin Exp Allergy 2017; 47:740-750. [PMID: 28211191 DOI: 10.1111/cea.12907] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 02/06/2017] [Accepted: 02/12/2017] [Indexed: 01/07/2023]
Abstract
BACKGROUND Mild asthmatics who smoke cigarettes may develop unstable disease and neutrophilic infiltration of the airways, features more usually associated with severe asthmatic disease. The mechanisms giving rise to this response remain unclear. OBJECTIVE To address the hypothesis that smoking increases bronchial mucosal production of IL-17A which acts on bronchial epithelial cells directly and in concert with other environmental stimuli to induce the production of IL-6 and neutrophil chemotaxins. METHODS IL-17A, IL-8, IL-6, neutrophils and eosinophils were detected and quantified by immunohistochemistry in endobronchial biopsy sections from smoking and non-smoking asthmatics. Human tracheal epithelial cells (HTEpC) were cultured with IL-17A in the presence/absence of cigarette smoke extract (CSE) and aeroallergens lacking intrinsic protease activity, and IL-6 and IL-8 production measured in vitro. RESULTS Expression of IL-17A, IL-6 and IL-8 and neutrophil numbers was significantly elevated in the bronchial mucosa of the asthmatic smokers compared to the non-smokers. Expression of IL-17A correlated with that of IL-8 and neutrophil numbers. In the smoking asthmatics, eosinophil numbers also correlated with expression of IL-8 and IL-17A. Exposure of HTEpC cells to both CSE and IL-17A increased expression of IL-6 and IL-8 in a concentration-dependent and synergistic manner. Co-stimulation with CSE, IL-17A and aeroallergens further increased IL-6 and IL-8 production synergistically. CONCLUSIONS The data support the hypothesis that asthmatic smokers develop neutrophilic inflammation of the airways propagated at least partly by smoke-induced production of IL-17A which together with smoke and other environmental stimuli acts on airways epithelial cells to induce neutrophil chemotaxins.
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Affiliation(s)
- L Q C Siew
- Division of Asthma, Allergy and Lung Biology, MRC-Asthma UK Centre for Allergic Mechanisms of Asthma, Guy's Hospital, King's College London, London, UK
| | - S-Y Wu
- Division of Asthma, Allergy and Lung Biology, MRC-Asthma UK Centre for Allergic Mechanisms of Asthma, Guy's Hospital, King's College London, London, UK
| | - S Ying
- Division of Asthma, Allergy and Lung Biology, MRC-Asthma UK Centre for Allergic Mechanisms of Asthma, Guy's Hospital, King's College London, London, UK
| | - C J Corrigan
- Division of Asthma, Allergy and Lung Biology, MRC-Asthma UK Centre for Allergic Mechanisms of Asthma, Guy's Hospital, King's College London, London, UK
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30
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Luo F, Jia R, Ying S, Wang Z, Wang F. Analysis of genes that influence sheep follicular development by different nutrition levels during the luteal phase using expression profiling. Anim Genet 2016; 47:354-64. [PMID: 26970339 DOI: 10.1111/age.12427] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/11/2016] [Indexed: 01/09/2023]
Abstract
Nutrition is an important factor that regulates reproductive performance of sheep and affects follicle development. However, the correlation between nutrition and follicle development is poorly understood at the molecular level. To study its possible molecular mechanisms, we performed expression profiling of granulosa cells isolated from sheep that were fed different levels of nutrition levels during the luteal phase. To do this, ewes received a maintenance diet (M), and their estrus was synchronized by intravaginal progestogen sponges for 12 days. Ewes were randomly divided into the short-term dietary-restricted group (R; 0.5 × M) and the nutrient-supplemented group (S; 1.5 × M). RNA samples were extracted from granulosa cells. Transcriptome libraries from each group were constructed by Illumina sequencing. Among 18 468 detected genes, 170 genes were significantly differentially expressed, of which 140 genes were upregulated and 30 genes were downregulated in group S relative to group R. These genes could be candidates regulating follicular development in sheep. Gene Ontology, KEGG and clustering analyses were performed. Genes related to oocyte meiosis, such as ADCY7, were upregulated. We identified two important groups of related genes that were upregulated with improved nutrition: one group comprising the genes PTGS2, UCP2 and steroidogenic acute regulatory protein and the other group comprising interleukin-1A and interleukin-1B. The genes within each group showed similar expression patterns. Additionally, all five genes are involved in the reproduction process. Quantitative real-time PCR was performed to validate the results of expression profiling. These data in our study are an abundant genomic resource to expand the understanding of the molecular and cellular events underlying follicle development.
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Affiliation(s)
- F Luo
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China.,Jiangsu Engineering Technology Research Center of Meat Sheep & Goat Industry, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - R Jia
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - S Ying
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Z Wang
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - F Wang
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China.,Jiangsu Engineering Technology Research Center of Meat Sheep & Goat Industry, Nanjing Agricultural University, Nanjing, 210095, PR China
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Slovick AD, Douiri A, Muir R, Guerra A, Tsioulos K, Haye E, Lam E, Kelly J, Peacock J, Ying S, Shamji MH, Cousins D, Durham SR, Till S. A Randomized Placebo-Controlled Trial of Intradermal Grass Pollen Immunotherapy for Seasonal Allergic Rhinitis. J Allergy Clin Immunol 2016. [DOI: 10.1016/j.jaci.2015.12.433] [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: 11/28/2022]
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Fang CL, Yin LJ, Sharma S, Kierstein S, Wu HF, Eid G, Haczku A, Corrigan CJ, Ying S. Resistin-like molecule-β (RELM-β) targets airways fibroblasts to effect remodelling in asthma: from mouse to man. Clin Exp Allergy 2016; 45:940-952. [PMID: 25545115 DOI: 10.1111/cea.12481] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Revised: 11/12/2014] [Accepted: 12/16/2014] [Indexed: 01/15/2023]
Abstract
BACKGROUND RELM-β has been implicated in airways inflammation and remodelling in murine models. Its possible functions in human airways are largely unknown. The aim was to address the hypothesis that RELM-β plays a role in extracellular matrix deposition in asthmatic airways. METHODS The effects of RELM-β gene deficiency were studied in a model of allergen exposure in mice sensitised and challenged with Aspergillus fumigatus (Af). RELM-β expression was investigated in bronchial biopsies from asthmatic patients. Direct regulatory effects of RELM-β on human lung fibroblasts were examined using primary cultures and the MRC5 cell line in vitro. RESULTS Sensitisation and challenge of wild-type mice with Af-induced release of RELM-β with a time course coincident with that of procollagen in the airways. Af-induced expression of mRNA encoding some, but not all ECM in the lung parenchyma was attenuated in RELM-β-/- mice. RELM-β expression was significantly increased in the bronchial submucosa of human asthmatics compared with controls, and its expression correlated positively with that of fibronectin and α-smooth muscle actin. In addition to epithelial cells, macrophages, fibroblasts and vascular endothelial cells formed the majority of cells expressing RELM-β in the submucosa. Exposure to RELM-β increased TGF-β1, TGF-β2, collagen I, fibronectin, smooth muscle α-actin, laminin α1, and hyaluronan and proteoglycan link protein 1 (Hapl1) production as well as proliferation by human lung fibroblasts in vitro. These changes were associated with activation of ERK1/2 in MRC5 cells. CONCLUSION The data are consistent with the hypothesis that elevated RELM-β expression in asthmatic airways contributes to airways remodelling at least partly by increasing fibroblast proliferation and differentiation with resulting deposition of extracellular matrix proteins.
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Affiliation(s)
- C L Fang
- MRC & Asthma UK Centre for Allergic Mechanisms of Asthma, The Department of Asthma, Allergy and Respiratory Science, King's College London, London, UK
| | - L J Yin
- Tangshan Key Laboratory for Preclinical and Basic Research on Chronic Diseases and Division of Pharmacology, School of Basic Medical Science, Hebei United University, Hebei, China
| | - S Sharma
- Department of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - S Kierstein
- Department of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - H F Wu
- MRC & Asthma UK Centre for Allergic Mechanisms of Asthma, The Department of Asthma, Allergy and Respiratory Science, King's College London, London, UK
| | - G Eid
- MRC & Asthma UK Centre for Allergic Mechanisms of Asthma, The Department of Asthma, Allergy and Respiratory Science, King's College London, London, UK
| | - A Haczku
- Department of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - C J Corrigan
- MRC & Asthma UK Centre for Allergic Mechanisms of Asthma, The Department of Asthma, Allergy and Respiratory Science, King's College London, London, UK
| | - S Ying
- MRC & Asthma UK Centre for Allergic Mechanisms of Asthma, The Department of Asthma, Allergy and Respiratory Science, King's College London, London, UK.,The Department of Immunology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
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Kay AB, Clark P, Maurer M, Ying S. Elevations in T-helper-2-initiating cytokines (interleukin-33, interleukin-25 and thymic stromal lymphopoietin) in lesional skin from chronic spontaneous ('idiopathic') urticaria. Br J Dermatol 2015; 172:1294-302. [PMID: 25523947 DOI: 10.1111/bjd.13621] [Citation(s) in RCA: 95] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/09/2014] [Indexed: 12/19/2022]
Abstract
BACKGROUND The mechanism of wealing in chronic spontaneous urticaria (CSU) is largely unknown. We previously demonstrated increased expression of T-helper 2 [interleukin (IL)-4 and IL-5] cytokines in skin biopsies from CSU. This suggested that Th2-initiating cytokines [IL-33, IL-25 and thymic stromal lymphopoietin (TSLP)], released through innate immune mechanisms, may play a role in pathogenesis. OBJECTIVES To identify Th2-initiating cytokines in lesional and nonlesional skin from patients with CSU and to compare the results with a control group. METHODS Paired biopsies (one from a 4-8 h spontaneous weal and one from uninvolved skin) were taken from eight patients with CSU and nine control subjects, and studied by immunohistochemistry and confocal microscopy. RESULTS There were increases in IL-4(+) and IL-5(+) cells in lesional skin vs. controls (P = 0·03 and P < 0·001, respectively) and marked elevations in the numbers of IL-33(+), IL-25(+) and TSLP(+) cells in the dermis of lesional skin vs. both nonlesional skin (P = 0·002, P = 0·01 and P = 0·04, respectively) and controls (P = 0·001, P < 0·001 and P = 0·005, respectively). There was also a correlation between the numbers of IL-33(+) and IL-25(+) cells (r = 0·808, P = 0·015). IL-33 localized to CD31(+) endothelial cells, CD90(+) fibroblasts, CD68(+) macrophages and tryptase(+) mast cells, whereas IL-25 was expressed by epithelial cells, mast cells and major basic protein-positive eosinophils. IL-33 and IL-25 were constitutively expressed in the epidermis of both controls and patients with CSU. CONCLUSIONS Increased expression of Th2-initiating cytokines in lesional skin in CSU suggests that innate pathways might play a role in the mechanism of wealing. As Th2-initiating cytokines play a role in mast cell activation, inflammation and vascular leakage in CSU, these findings may also have therapeutic implications.
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Affiliation(s)
- A B Kay
- Leukocyte Biology Section, National Heart & Lung Institute, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
| | - P Clark
- Leukocyte Biology Section, National Heart & Lung Institute, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
| | - M Maurer
- Department of Dermatology and Allergy, Allergie-Centrum-Charité/ECARF, Charité - Universitätsmedizin, Berlin, Germany
| | - S Ying
- Asthma, Allergy and Lung Biology, Guy's Hospital, London, U.K
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Abstract
Numerous diseases are known to cause microstructural alteration of dental tissues structure. One type in particular is associated with neonatal jaundice and circulation of bilirubin in blood at high concentration due to increased hemolysis in conditions such as erythroblastosis fetalis, septicemia, biliary atresia, and other causes of hyperbilirubinemia. In those conditions, the products of the catabolism of hemoglobin end up deposited in various tissues, including teeth, where they can present clinically as visibly stained brown/green teeth. There is almost no information on the nature or extent of the structural changes taking place in these conditions. Here, advanced nondestructive wide-angle synchrotron X-ray scattering techniques combined with scanning microscopy methods were used to investigate for the first time the ultrastructure of the dental hard tissues in an archival case of intrinsically pigmented green teeth. Despite no obvious elemental variation across the pigmented tissue region, the high-resolution crystallographic properties probed by wide-angle synchrotron X-ray scattering revealed an ultrastructural variation (orientation, particle size, and lattice parameter of hydroxyapatite crystallites) associated with a pigmentation line in dentine and with a distinct neonatal line in enamel.
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Affiliation(s)
- T Sui
- Multi-Beam Laboratory for Engineering Microscopy, Department of Engineering Science, University of Oxford, Oxford, UK
| | - S Ying
- Multi-Beam Laboratory for Engineering Microscopy, Department of Engineering Science, University of Oxford, Oxford, UK
| | - A M Korsunsky
- Multi-Beam Laboratory for Engineering Microscopy, Department of Engineering Science, University of Oxford, Oxford, UK
| | - G Landini
- School of Dentistry, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
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Kay AB, Ying S, Ardelean E, Mlynek A, Kita H, Clark P, Maurer M. Calcitonin gene-related peptide and vascular endothelial growth factor are expressed in lesional but not uninvolved skin in chronic spontaneous urticaria. Clin Exp Allergy 2015; 44:1053-60. [PMID: 24902612 DOI: 10.1111/cea.12348] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [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: 02/26/2014] [Revised: 04/21/2014] [Accepted: 05/14/2014] [Indexed: 11/28/2022]
Abstract
BACKGROUND The mechanisms for producing weals in chronic spontaneous (idiopathic) urticaria (CSU) are incompletely understood. Leucocyte infiltration with vascular leakage and expression of the potent vasoactive agents' calcitonin gene-related peptide (CGRP) and vascular endothelial growth factor (VEGF) are features of late-phase allergic skin reactions, previously proposed as a model of CSU. OBJECTIVE To measure CGRP and VEGF expression in lesional and non-lesional skin from CSU patients and to compare results with a control group. METHODS Eight paired biopsies (one from 4-8 h spontaneous weals and one from uninvolved skin) were taken from eight patients with CSU and nine control subjects and studied by immunohistochemistry and confocal microscopy. RESULTS Lesional skin in CSU contained significantly more CGRP+ and VEGF+ cells than non-lesional skin. No significant differences were observed in CGRP and VEGF expression between non-lesional skin and controls. In lesional skin, VEGF and CGRP co-localised to UEA-1+ blood vessels. CGRP was also expressed by neutrophils and eosinophils and to a lesser extent by CD90(+) fibroblasts, mast cells, CD3(+) and CD68(+) cells. CGRP and VEGF expression was not related to the duration of disease. CONCLUSION AND CLINICAL RELEVANCE Increased expression of CGRP and VEGF in lesional, but not uninvolved, skin indicates that these potent vasoactive agents may play a role in wealing and tissue oedema in CSU so representing novel targets in therapy.
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Affiliation(s)
- A B Kay
- Leukocyte Biology Section, National Heart & Lung Institute, Imperial College London, London, UK
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Yao XJ, Huang KW, Li Y, Zhang Q, Wang JJ, Wang W, Liu J, Lv Z, An YQ, Ding YZ, Corrigan CJ, Wang W, Sun YC, Ying S. Direct comparison of the dynamics of IL-25- and 'allergen'-induced airways inflammation, remodelling and hypersensitivity in a murine asthma model. Clin Exp Allergy 2014; 44:765-77. [PMID: 24575868 DOI: 10.1111/cea.12298] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Revised: 01/24/2014] [Accepted: 02/15/2014] [Indexed: 01/09/2023]
Abstract
BACKGROUND Interleukin-25 has been implicated in the pathogenesis of asthma from studies on human asthmatics and in murine asthma models. OBJECTIVES In this study, we hypothesized that chronic exposure of the airways to IL-25 alone is able to induce pathogenic changes observed in animal models of asthma. METHODS We performed a detailed comparison of the dynamics of development of cellular infiltration, cytokine expression and airways remodelling and hyperresponsiveness in mice sensitized and challenged with OVA, a classical model of allergic asthma and those exposed to IL-25 alone. RESULTS Intranasal challenge of BALB/c mice with IL-25 alone induced a delayed (compared with OVA-challenge), predominantly eosinophilic and lymphocytic infiltration into the airways lumen, along with increased production of Th2-type cytokines, chemokines and collagen, secretion of epithelial mucus, goblet cell hyperplasia, deposition of subepithelial collagen, airways smooth muscle cell hyperplasia and angiogenesis. Correspondingly, IL-25 as well as OVA challenge both induced airways hyperresponsiveness and increased lung tissue damping. In contrast, IL-25 exposure did not increase IgE or IgG1 production. CONCLUSIONS AND CLINICAL RELEVANCE The data suggest that chronic airways exposure to IL-25 alone is sufficient to induce allergen- and IgE-independent, asthma-like airways inflammation, remodelling and hyperresponsiveness in mice. Thus, IL-25 is a key molecular target in asthma, irrespective of the coexistence of IgE-dependent mechanisms.
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Affiliation(s)
- X J Yao
- the Department of Respiratory Medicine, Beijing Tongren Hospital, Capital Medical University, Beijing, China
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Kay AB, Ying S, Ardelean E, Mlynek A, Kita H, Clark P, Maurer M. Elevations in vascular markers and eosinophils in chronic spontaneous urticarial weals with low-level persistence in uninvolved skin. Br J Dermatol 2014; 171:505-11. [PMID: 24665899 PMCID: PMC4282040 DOI: 10.1111/bjd.12991] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/19/2014] [Indexed: 11/27/2022]
Abstract
Background In chronic spontaneous urticaria (CSU) mast cell activation together with inflammatory changes in the skin are well documented and may play an important role in mechanisms of tissue oedema. Objectives To confirm and extend these observations by measuring microvascular markers, leucocytes and mast cell numbers in lesional and uninvolved skin and to compare findings with a control group. Methods Paired biopsies (one from 4–8-h spontaneous weals and one from uninvolved skin) were taken from eight patients with CSU and nine control subjects and studied using immunohistochemistry and confocal microscopy using the lectin Ulex europaeus agglutinin 1 (UEA-1). Results Lesional skin in CSU contained significantly more CD31+ endothelial cells; CD31+ blood vessels, neutrophils, eosinophils, basophils and macrophages; and CD3+ T cells than nonlesional skin. Increased vascularity was confirmed by confocal imaging using the lectin UEA-1. Uninvolved skin from CSU contained significantly more CD31+ endothelial cells, CD31+ blood vessels and eosinophils compared with the control subjects. There was a threefold increase in mast cell numbers when CSU was compared with controls but no difference was observed between lesional and uninvolved skin. Conclusions Increased vascular markers together with eosinophil and neutrophil infiltration are features of lesional skin in CSU and might contribute to tissue oedema. Eosinophils and microvascular changes persist in uninvolved skin, which, together with increased mast cells, suggests that nonlesional skin is primed for further wealing.
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Affiliation(s)
- A B Kay
- Leukocyte Biology Section, National Heart and Lung Institute, Imperial College, London, SW7 2AZ, U.K
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Israeli E, Ying S, Henderson B, Mottola J, Strome T, Bernstein CN. The impact of abdominal computed tomography in a tertiary referral centre emergency department on the management of patients with inflammatory bowel disease. Aliment Pharmacol Ther 2013; 38:513-21. [PMID: 23837741 DOI: 10.1111/apt.12410] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2013] [Revised: 06/05/2013] [Accepted: 06/22/2013] [Indexed: 12/08/2022]
Abstract
BACKGROUND Although exposure to diagnostic radiation may be associated with increased risk of malignancy, the use of abdominal CT (ACT) in the last decade has increased for patients in the emergency department (ED). AIM To examine the impact of ACT ordered in the ED on management of patients with inflammatory bowel diseases (IBD), as well as to quantify the cumulative effective dose (CED) of radiation received by these patients. METHODS A total of 152 patients with Crohn's disease (CD) and 130 patients with ulcerative colitis (UC) that presented to the ED in a tertiary centre between 2009 and 2011 were identified. For patients that had an ACT, chart review assessed if the ACT findings changed clinical management. CED of diagnostic radiation (DR) was calculated for all imaging studies between 1 January 2006 and 30 August 2012. RESULTS Abdominal CT use was 49% for CD and 19% for UC. ACTs with findings of penetrating/obstructive disease were 35% for CD. Urgent non-IBD-related diagnoses were found in 13% for CD and 28% for UC (P < 0.05). ACT caused a change in management in 81% of CD and 69% of UC patients. Mean CED from DR was 77.4 ± 63.0 mSv (median 53 mSv) for CD and 67.2 ± 51.0 mSv (median 56 mSv) for UC (P = 0.47). The CED for the 80-month period exceeded 75 mSv in 35% and 36% respectively (P = 0.99). CONCLUSIONS Although abdominal CT often changes management of IBD patients in the emergency department, this population carries a very high-risk of radiation exposure. Efforts should be made to decrease this risk by development of low-radiation protocols, and wider use of MRI/ultrasound.
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Affiliation(s)
- E Israeli
- IBD Unit, Department of Gastroenterology and Liver Diseases, Hadassah-Hebrew University Hospital, Jerusalem, Israel.
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Mok CC, Ying S, Chan PT, To CH. THU0299 Factors Associated with Long-Term Renal Function Deterioration in Lupus Nephritis Treated Initially with Combined Prednisolone and Mycophenolate Mofetil (MMF) or Tacrolimus (TAC). Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.827] [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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Jones KK, Siew L, Pillai P, Reinholtz C, Bull H, Rabuya M, Fuerst E, Wright D, Shaifta Y, Ying S, Meng Q, Corrigan C. The Influence of Operators On the Obtaining of Successful Bronchial Biopsies in Asthma Research. J Allergy Clin Immunol 2013. [DOI: 10.1016/j.jaci.2012.12.861] [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: 10/27/2022]
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Liang X, Ni L, Hu W, Chen W, Ying S, Gong Q, Liu Y. A planning study of simultaneous integrated boost with forward IMRT for multiple brain metastases. Med Dosim 2012; 38:115-6. [PMID: 23237662 DOI: 10.1016/j.meddos.2012.07.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2012] [Revised: 05/17/2012] [Accepted: 07/30/2012] [Indexed: 10/27/2022]
Abstract
The objective of this study was to evaluate the dose conformity and feasibility of whole-brain radiotherapy with a simultaneous integrated boost by forward intensity-modulated radiation therapy in patients with 1 to 3 brain metastases. Forward intensity-modulated radiation therapy plans were generated for 10 patients with 1 to 3 brain metastases on Pinnacle 6.2 Treatment Planning System. The prescribed dose was 30 Gy to the whole brain (planning target volume [PTV]wbrt) and 40 Gy to individual brain metastases (PTVboost) simultaneously, and both doses were given in 10 fractions. The maximum diameters of individual brain metastases ranged from 1.6 to 6 cm, and the summated PTVs per patient ranged from 1.62 to 69.81 cm(3). Conformity and feasibility were evaluated regarding conformation number and treatment delivery time. One hundred percent volume of the PTVboost received at least 95% of the prescribed dose in all cases. The maximum doses were less than 110% of the prescribed dose to the PTVboost, and all of the hot spots were within the PTVboost. The volume of the PTVwbrt that received at least 95% of the prescribed dose ranged from 99.2% to 100%. The mean values of conformation number were 0.682. The mean treatment delivery time was 2.79 minutes. Ten beams were used on an average in these plans. Whole-brain radiotherapy with a simultaneous integrated boost by forward intensity-modulated radiation therapy in 1 to 3 brain metastases is feasible, and treatment delivery time is short.
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Wang W, Fan YQ, Lv Z, Yao XJ, Wang W, Huang KW, Meng Q, Fang CL, Lee TH, Corrigan CJ, An YQ, Ying S. Interleukin-25 promotes basic fibroblast growth factor expression by human endothelial cells through interaction with IL-17RB, but not IL-17RA. Clin Exp Allergy 2012; 42:1604-14. [PMID: 23106660 DOI: 10.1111/j.1365-2222.2012.04062.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND Unlike other IL-17 family members, the Th2-derived cytokine IL-25 (IL-17E) induces (promotes) Th2 responses. One or both of the two receptors for IL-25 (IL-17RA, IL-17RB) is expressed on inflammatory cells and tissue structural cells, suggesting that in addition to promoting Th2-type inflammation IL-25 may also act on structural cells at sites of Th2-type inflammation such as in the asthmatic bronchial mucosa to promote remodelling changes. OBJECTIVE Our previous studies showed elevated expression of IL-25 and IL-17RB immunoreactivity in asthmatic airways with co-localization of the latter to endothelial cells. We therefore hypothesized that IL-25 acts on endothelial cells through this receptor to induce production of the key angiogenic and remodelling cytokine basic fibroblast growth factor (bFGF). METHODS Polymerase chain reaction (PCR) immunocytochemistry/immunohistochemistry and ELISA were employed to detect expression of IL-17RB, IL-17RA and bFGF by human vascular endothelial cells (HUVEC) and immunoreactivity for IL-25 and bFGF in asthmatic bronchial biopsies. Receptor-blocking antibodies, PCR and an in vitro angiogenesis assay were used to investigate whether IL-25 acts on IL-17RB or IL-17RA to induce bFGF expression and angiogenesis. PCR was also employed to investigate the signalling pathways involved in IL-25-mediated bFGF expression. RESULTS HUVEC constitutively expressed IL-17RB, IL-17RA and bFGF. Production of the latter was further increased by IL-25, but attenuated after blockade of the IL-17RB, but not the IL-17RA receptor. Neutralization of endogenous VEGF and bFGF completely abrogated IL-25-induced angiogenesis which was also inhibited by blocking IL-17RB, but not IL-17RA. The PI3K-specific inhibitor LY294002 also completely attenuated IL-25-induced bFGF expression. Immunoreactivity for IL-25 and bFGF was elevated in the asthmatic bronchial mucosa and the expression of each correlated with the other. CONCLUSIONS AND CLINICAL RELEVANCE Our data support the hypothesis that IL-25 contributes to elevated bFGF in asthmatic airways by acting on the endothelial cell IL-17RB receptor through PI3K-signalling pathways. Targeting the pathways might benefit therapy of airways remodelling.
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Affiliation(s)
- W Wang
- Department of Immunology, Capital Medical University, Beijing, China
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Ying S, Zhang Z, Huang G, Hsieh F. Inhibin activin subunits and activin receptors in human breast cell-lines and lactating rat mammary-glands. Int J Oncol 2012; 7:481-5. [PMID: 21552863 DOI: 10.3892/ijo.7.3.481] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
We have reported previously that a human breast cancer cell line, MCF-7, transcribes messenger RNAs coding inhibin/activin alpha-, beta A-, and beta B-subunits and activin receptor II as well as produces inhibin and/or activin proteins, using immunocytochemistry, in situ hybridization, and the reverse transcription-polymerase chain reaction (RT-PCR) analysis. In the present study, we report that four additional cell lines derived from human breast cancers, T47D, HS-578, ZR-75-1, and MDA-MB 321 express mRNAs for alpha- and beta-subunits of inhibin/activin and activin receptors as well as stain positive with antisera specific for inhibin alpha- and inhibin/activin beta-subunits, respectively. We have also localized immunocytochemically inhibin and activin-A in rat lactating mammary glands and found mRNAs for activin receptors I, II, and IIB as well as follistatin, a binding protein for activin, in lactating rat mammary glands by RT-PCR. These findings provide additional evidence that inhibin and activin may be involved in regulating the normal and abnormal cell growth of mammary glands.
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Zhang Z, Zheng J, Zhao Y, Li G, Batres Y, Luo M, Wan M, Ying S. Overexpression of activin A inhibits growth, induces apoptosis, and suppresses tumorigenicity in an androgen-sensitive human prostate cancer cell line LNCaP. Int J Oncol 2012; 11:727-36. [PMID: 21528267 DOI: 10.3892/ijo.11.4.727] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The effects of overexpression of activin A in the androgen-sensitive human prostate cancer cell line LNCaP were studied. A full-length cDNA of activin beta A coding region was inserted into a eukaryotic expression vector and transfected into the LNCaP cells. Overexpression of activin BA significantly inhibited growth of this cell line. An increased death rate was also noted in these activin-overproducing cells, which was believed to be due to apoptosis as manifested by morphological change, DNA laddering, and FAGS analysis. The expression of bcl-2 was suppressed and the expression of c-myc was stimulated in these cells. In addition, the efficiency of soft agar colony formation and the tumorigenicity in the nude mice were suppressed for the activin producing LNCaP cells.
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Affiliation(s)
- Z Zhang
- UNIV SO CALIF,DEPT CELL & NEUROBIOL,SCH MED,LOS ANGELES,CA 90033. UNIV SO CALIF,DEPT PATHOL,SCH MED,LOS ANGELES,CA 90033
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Yan L, YanYan J, MinChun C, Jing Y, Ying S, ChengTao L, Jie G, CaiYang L, ZhenXing Z, AiDong W, Yi D. High-Performance Liquid Chromatographic Analysis of Felotaxel, a Novel Anti-Cancer Drug, in Rat Plasma and in Human Plasma and Urine. J Chromatogr Sci 2012; 51:292-6. [DOI: 10.1093/chromsci/bms140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Zhou Z, Wan Y, Zhang Y, Wang Z, Jia R, Fan Y, Nie H, Ying S, Huang P, Wang F. Follicular development and expression of nuclear respiratory factor-1 and peroxisome proliferator-activated receptor γ coactivator-1 alpha in ovaries of fetal and neonatal doelings. J Anim Sci 2012; 90:3752-61. [PMID: 22665641 DOI: 10.2527/jas.2011-4971] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
In livestock, the ovarian reserve of follicles is established during the fetal stage. However, at least two-thirds of the oocytes present in the reserve die because of apoptosis before birth. Notably, mitochondria have been reported to play a crucial role in the fate (life/death) of oocytes. In this study, mitochondrial regulators nuclear respiratory factor-1 (NRF-1) and PPAR γ coactivator-1 alpha (PGC-1α) were examined during this period of follicle development to investigate their effects on follicular development and apoptosis. Fetal and neonatal Capra haimen were used, ranging in age from 60 d postcoitum (dpc) to 30 d postpartum (dpp). Our data demonstrated that egg nests were the earliest recognizable gamete cells in ovaries of fetal and neonatal doelings. Proportions of egg nests decreased from 92.68 to 25.08% whereas single follicles increased from 7.32 to 74.92% between 60 and 120 dpc. Subsequently, between 90 and 120 dpc, the proportion of primordial follicles increased from 9.98 to 61.56% (P < 0.01). However, it did not change between 1 and 30 dpp (P = 0.12). The proportion of primary follicles increased from 1.23 to 37.93% between 90 dpc to 1 dpp (P = 0.01) but did not change between 1 and 30 dpp (P = 0.11). Meanwhile, proportions of secondary and tertiary follicles increased in an age-dependent manner. In addition, results of this study suggested that NRF-1 and PGC-1α proteins are mainly localized in germ cells of egg nests, cytoplasm of oocytes, and granulosa cells of follicles ranging from primordial to tertiary follicles. The transcript abundance of NRF-1 mRNA was up-regulated in 60-dpc-old ovaries compared with 1-dpp-old ovaries (P < 0.05), but the PGC-1α mRNA expression pattern did not change (P = 0.05). Nevertheless, the number of terminal deoxynucleotidyltransferase UTP nick-end labeling (TUNEL) positive cells and caspase-3 activity in 60-dpc-old ovaries was less than those in 1-dpp-old ovaries (P < 0.01, P = 0.01). In conclusion, our results demonstrate that the key stage of primordial follicle formation is between 90 and 120 dpc in Capra haimen. Also, this study suggests that NRF-1 and PGC-1α might have roles in cell apoptosis during ovarian development of fetal and neonatal Capra haimen. These results improve our understanding of apoptotic mechanisms in oogenesis and folliculogenesis.
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Affiliation(s)
- Z Zhou
- Center of Embryo Engineering and Technology, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
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Ashizawa T, Perlman S, Gomez C, Wilmot G, Schmahmann J, Ying S, Zesiewicz T, Paulson H, Shakkottai V, Bushara K, Mazzoni P, Kuo SH, Pulst S, Figueroa K, Xia G, Krischer J, Cuthbertson D, Roberts Holbert A, Ferguson J, Galpern W, Subramony S. Clinical Characteristics of Spinocerebellar Ataxias 1, 2, 3 and 6 (S12.002). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.s12.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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48
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Kattah J, Pula J, Nair D, Ying S, Newman-Toker D. Small Posterior Fossa Strokes Causing Severe Vertigo - Clinical Signs and Anatomic Distribution of the "Lacunar" Acute Vestibular Syndrome (P02.249). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p02.249] [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: 11/15/2022] Open
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Sur S, Ying S, Corrigan C, Kurosky A, Boldogh I, Qi H. IL-8 And Neutrophils In Bronchoalveolar Lavage Fluids Distinguish Mild Asthma From Moderate To Severe Asthma. J Allergy Clin Immunol 2012. [DOI: 10.1016/j.jaci.2011.12.858] [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: 10/14/2022]
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50
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Fang C, Meng Q, Wu H, Eid G, Zhang G, Zhang X, Yang S, Huang K, Lee TH, Corrigan CJ, Ying S. Resistin-like molecule-β is a human airway remodelling mediator. Eur Respir J 2011; 39:458-66. [PMID: 21828035 DOI: 10.1183/09031936.00107811] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Though implicated in vascular remodelling, a role for the resistin-like molecule (RELM)-β in human airway remodelling remains unexplored. We hypothesised that RELM-β expression is increased in the airways of asthmatics and regulates airways epithelial cell function. Expression of RELM-β in the bronchial mucosa and its concentrations in bronchoalveolar lavage (BAL) fluid from asthmatics and controls were measured by immunohistochemistry and ELISA, respectively. Proliferation assays, Western blotting, ELISA and real-time PCR were employed to detect effects of RELM-β on airways epithelial cells. RELM-β expression was increased in the bronchial mucosa and BAL fluid of asthmatics compared with controls. In the asthmatics, the numbers of mucosal RELM-β+ cells correlated inversely with forced expiratory volume in 1 s (r=-0.531, p=0.016), while the numbers of epithelial RELM-β+ cells correlated positively with those of mucin (MUC)5AC+ cells. In vitro, interleukin-13 enhanced RELM-β expression by primary human airways epithelial cells, while RELM-β itself acted on these cells to induce proliferation, expression of MUC5AC, extracellular signal-regulated kinase (ERK)/mitogen-activated protein kinase (MAPK)-phosphatidylinositol 3-kinase (PI3K)/Akt phosphorylation and elevated expression of transforming growth factor-β2, epidermal growth factor and vascular endothelial growth factor. RELM-β has the potential to contribute to airway remodelling in diseases such as asthma by acting on epithelial cells to increase proliferation, mucin and growth factor production, at least partly via ERK/MAPK-PI3K/Akt signalling pathways.
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Affiliation(s)
- C Fang
- Dept of Asthma, Allergy and Respiratory Science 5th Floor Tower Wing Guy's Hospital, King's College London, London SE1 9RT, UK
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