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Wen X, Zhao C, Zhao B, Yuan M, Chang J, Liu W, Meng J, Shi L, Yang S, Zeng J, Yang Y. Application of deep learning in radiation therapy for cancer. Cancer Radiother 2024; 28:208-217. [PMID: 38519291 DOI: 10.1016/j.canrad.2023.07.015] [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: 06/26/2023] [Revised: 07/17/2023] [Accepted: 07/18/2023] [Indexed: 03/24/2024]
Abstract
In recent years, with the development of artificial intelligence, deep learning has been gradually applied to clinical treatment and research. It has also found its way into the applications in radiotherapy, a crucial method for cancer treatment. This study summarizes the commonly used and latest deep learning algorithms (including transformer, and diffusion models), introduces the workflow of different radiotherapy, and illustrates the application of different algorithms in different radiotherapy modules, as well as the defects and challenges of deep learning in the field of radiotherapy, so as to provide some help for the development of automatic radiotherapy for cancer.
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Affiliation(s)
- X Wen
- Cancer Institute of the Affiliated Hospital of Qingdao University and Qingdao Cancer Institute, Qingdao University, Qingdao, China; Department of Radiotherapy, Yunnan Cancer Hospital, the Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - C Zhao
- School of Biomedical Engineering, Shanghai Jiao Tong University, No. 800, Dongchuan Road, Minhang District, Shanghai, China
| | - B Zhao
- Department of Radiotherapy, Yunnan Cancer Hospital, the Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - M Yuan
- Department of Radiotherapy, Yunnan Cancer Hospital, the Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - J Chang
- Cancer Institute of the Affiliated Hospital of Qingdao University and Qingdao Cancer Institute, Qingdao University, Qingdao, China; School of Basic Medicine, Qingdao University, Qingdao, China
| | - W Liu
- Cancer Institute of the Affiliated Hospital of Qingdao University and Qingdao Cancer Institute, Qingdao University, Qingdao, China; School of Basic Medicine, Qingdao University, Qingdao, China
| | - J Meng
- Cancer Institute of the Affiliated Hospital of Qingdao University and Qingdao Cancer Institute, Qingdao University, Qingdao, China; School of Basic Medicine, Qingdao University, Qingdao, China
| | - L Shi
- Cancer Institute of the Affiliated Hospital of Qingdao University and Qingdao Cancer Institute, Qingdao University, Qingdao, China; School of Basic Medicine, Qingdao University, Qingdao, China
| | - S Yang
- Cancer Institute of the Affiliated Hospital of Qingdao University and Qingdao Cancer Institute, Qingdao University, Qingdao, China; School of Basic Medicine, Qingdao University, Qingdao, China
| | - J Zeng
- Cancer Institute of the Affiliated Hospital of Qingdao University and Qingdao Cancer Institute, Qingdao University, Qingdao, China; School of Basic Medicine, Qingdao University, Qingdao, China
| | - Y Yang
- Department of Radiotherapy, Yunnan Cancer Hospital, the Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China.
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Li P, Xiong F, Huang X, Wen X. Construction and optimization of vending machine decision support system based on improved C4.5 decision tree. Heliyon 2024; 10:e25024. [PMID: 38318033 PMCID: PMC10838796 DOI: 10.1016/j.heliyon.2024.e25024] [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: 11/02/2023] [Revised: 12/14/2023] [Accepted: 01/18/2024] [Indexed: 02/07/2024] Open
Abstract
The intensification of market competition makes refined operation management become the focus of attention of major manufacturers. As an important branch of artificial intelligence (AI), machine learning (ML) plays a key role in it, and has its application prospect in various systems. Based on this situation, this paper takes vending machines as the research object. On the one hand, the product classification model of vending machine is constructed based on decision tree algorithm. On the other hand, based on neural network (NN), the sales forecast model of vending machines is built. Finally, based on the above research, the theoretical framework of decision support system (DSS) for vending machines is constructed. The research shows that: (1) The accuracy of C4.5 algorithm can reach 87 % at the highest and 68 % at the lowest. The accuracy of the improved C4.5 algorithm can reach 87 % at the highest and 67 % at the lowest, with little difference between them. (2) The maximum running time of the improved C4.5 algorithm is about 5500 ms, and the minimum is close to 1 ms. In addition, the running time of all seven datasets is better than that of the unmodified algorithm. (3) When the back propagation neural network (BPNN) is used to forecast the sales of vending machines, the curve of the predicted data basically coincides with the curve of the actual data, which shows that its accuracy is high. This paper aims to build a convenient and secure DSS by taking vending machines as an example. In addition, this paper also uses reinforcement learning to optimize the research methods of this paper. It can further optimize the performance and efficiency of vending machines and provide better service experience for customers. Meanwhile, the use of reinforcement learning can make the whole system more intelligent and adaptive to better cope with the changing market environment.
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Affiliation(s)
- Ping Li
- School of Information and Mechatronic Engineering, Hunan International Economics University, Changsha, 410205, China
| | - Fang Xiong
- School of Information and Mechatronic Engineering, Hunan International Economics University, Changsha, 410205, China
| | - Xibei Huang
- School of Information and Mechatronic Engineering, Hunan International Economics University, Changsha, 410205, China
| | - Xiaojun Wen
- School of Information and Mechatronic Engineering, Hunan International Economics University, Changsha, 410205, China
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Cheng H, Luo K, Wen X, Yang J, Li J. AgTNP@TiO 2@Ag core-satellite composites for sensitive sensing and in situ monitoring photodegradation of organic dyes by portable Raman spectrometer. Spectrochim Acta A Mol Biomol Spectrosc 2024; 306:123562. [PMID: 37918094 DOI: 10.1016/j.saa.2023.123562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 09/22/2023] [Accepted: 10/17/2023] [Indexed: 11/04/2023]
Abstract
The development of sensitive, reliable, and robust substrates for surface-enhanced Raman spectroscopy (SERS) heavily relies on the creation of numerous hot spots. In this study, we propose a simple approach to fabricate core-satellite composites composed of AgTNP@TiO2@Ag, where Ag triangular nanoplates (AgTNPs) act as the cores, TiO2 serves as the interlayer, and Ag nanoparticles are deposited around them to form Ag satellites. By adjusting the amount of AgNO3, we precisely control the coverage of Ag nanoparticles on AgTNP@TiO2@Ag, thus fine-tuning their SERS sensitivity. Various characterization techniques were employed to examine their composition, morphology, and crystal structure. Thanks to the abundant hot spots created by the Ag satellites, these composites exhibit significantly enhanced SERS sensitivity and they demonstrate the capability to detect methylene blue (MB) at a concentration of 10-10 M by portable Raman spectrometer. Moreover, the AgTNP@TiO2@Ag composites effectively enable in situ SERS monitoring of the photodegradation reaction of MB. Overall, the novel AgTNP@TiO2@Ag composites prepared in this study exhibit high SERS sensitivity and excellent photocatalytic performance, making them highly valuable for environmental detection and ecological restoration purposes.
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Affiliation(s)
- Huan Cheng
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
| | - Kuang Luo
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
| | - Xiaojun Wen
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
| | - Jie Yang
- School of Environmental Engineering, Nanjing Institute of Technology, Nanjing 211167, China
| | - Jumei Li
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China.
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Wen X, Cheng H, Zhang W, You L, Li J. Multifunctional Ni(OH) 2/Ag composites for ultrasensitive SERS detection and efficient photocatalytic degradation of ciprofloxacin and methylene blue. Talanta 2024; 266:125140. [PMID: 37659231 DOI: 10.1016/j.talanta.2023.125140] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/28/2023] [Accepted: 08/29/2023] [Indexed: 09/04/2023]
Abstract
To enable the widespread application of surface-enhanced Raman scattering (SERS) technique in practical sensing of organic pollutants, it is essential to develop a reliable SERS substrate that offers both high sensitivity and reusability. In this study, we employed a simple and rapid in-situ deposition method to coat Ag nanoparticles onto flower-like Ni(OH)2 spheres, resulting in the formation of Ni(OH)2/Ag composites with excellent photocatalytic performance and SERS activity. These composites were used as a promising SERS analysis tool for effective detection of organic pollutants, including ciprofloxacin hydrochloride (CIP) and methylene blue (MB). Notably, the composites exhibited outstanding detection limits of 10-8 M for MB and 10-7 M for CIP, respectively, and showed a strong linear relationship between SERS intensities and the logarithmic concentration (R2 ≥ 0.97). Moreover, under simulated sunlight irradiation, the Ni(OH)2/Ag composites efficiently degraded MB and CIP molecules within a short period of 120 min for MB and 130 min for CIP. This demonstrated their practical reusability, as evidenced by their consistent performance over five cycles of SERS sensing. These findings underscore the significant potential of these composites for SERS-based detection of trace pollutants and ecological restoration through photocatalytic reactions in the future.
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Affiliation(s)
- Xiaojun Wen
- Key Laboratory of Novel Biomass-based Environmental and Energy Materials in Petroleum and Chemical Industry, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430205, China
| | - Huan Cheng
- Key Laboratory of Novel Biomass-based Environmental and Energy Materials in Petroleum and Chemical Industry, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430205, China
| | - Weilong Zhang
- Key Laboratory of Novel Biomass-based Environmental and Energy Materials in Petroleum and Chemical Industry, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430205, China
| | - Lijun You
- College of Biological Science and Engineering, Fuzhou University, Fuzhou, 350116, China
| | - Jumei Li
- Key Laboratory of Novel Biomass-based Environmental and Energy Materials in Petroleum and Chemical Industry, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430205, China.
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Liu H, Li W, Zhu M, Wen X, Jin J, Wang H, Lv D, Zhao S, Wu X, Jiao J. Myokines and Biomarkers of Frailty in Older Inpatients with Undernutrition: A Prospective Study. J Frailty Aging 2024; 13:82-90. [PMID: 38616363 DOI: 10.14283/jfa.2024.9] [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] [Indexed: 04/16/2024]
Abstract
BACKGROUND Population aging might increase the prevalence of undernutrition in older people, which increases the risk of frailty. Numerous studies have indicated that myokines are released by skeletal myocytes in response to muscular contractions and might be associated with frailty. This study aimed to evaluate whether myokines are biomarkers of frailty in older inpatients with undernutrition. METHODS The frailty biomarkers were extracted from the Gene Expression Omnibus and Genecards datasets. Relevant myokines and health-related variables were assessed in 55 inpatients aged ≥ 65 years from the Peking Union Medical College Hospital prospective longitudinal frailty study. Serum was prepared for enzyme-linked immunosorbent assay using the appropriate kits. Correlations between biomarkers and frailty status were calculated by Spearman's correlation analysis. Multiple linear regression was performed to investigate the association between factors and frailty scores. RESULTS The prevalence of frailty was 13.21%. The bioinformatics analysis indicated that leptin, adenosine 5'-monophosphate-activated protein kinase (AMPK), irisin, decorin, and myostatin were potential biomarkers of frailty. The frailty group had significantly higher concentrations of leptin, AMPK, and MSTN than the robust group (p < 0.05). AMPK was significantly positively correlated with frailty (p < 0.05). The pre-frailty and frailty groups had significantly lower concentrations of irisin than the robust group (p < 0.05), whereas the DCN concentration did not differ among the groups. Multiple linear regression suggested that the 15 factors influencing the coefficients of association, the top 50% were the ADL score, MNA-SF score, serum albumin concentration, urination function, hearing function, leptin concentration, GDS-15 score, and MSTN concentration. CONCLUSIONS Proinflammatory myokines, particularly leptin, myostatin, and AMPK, negatively affect muscle mass and strength in older adults. ADL and nutritional status play major roles in the development of frailty. Our results confirm that identification of frailty relies upon clinical variables, myokine concentrations, and functional parameters, which might enable the identification and monitoring of frailty.
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Affiliation(s)
- H Liu
- Hongpeng Liu, Peking University School of Nursing, Beijing, China, ; Xinjuan Wu,
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Xu L, Wang H, Tong D, Xiang Z, Cao L, Wen X, Chen H, Xu J, Cui Y. Potential contamination at inhalation ports of air compressor-supplied ventilators. J Hosp Infect 2023; 142:130-131. [PMID: 37385453 DOI: 10.1016/j.jhin.2023.06.019] [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] [Received: 06/05/2023] [Revised: 06/23/2023] [Accepted: 06/24/2023] [Indexed: 07/01/2023]
Affiliation(s)
- L Xu
- Department of Anesthesiology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - H Wang
- Department of Respiratory and Critical Care Medicine, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - D Tong
- Hospital Infection Control Center, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Z Xiang
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - L Cao
- Department of Anesthesiology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Department of Anesthesiology, Guilin Hospital of the Second Xiangya Hospital, Central South University, Guilin, Guangxi, China
| | - X Wen
- Department of Anesthesiology, Wenzhou People's Hospital, Wenzhou, Zhejiang, China
| | - H Chen
- Department of Clinical Microbiology Laboratory, Chenzhou No. 1 People's Hospital, Chenzhou, Hunan, China
| | - J Xu
- Department of Anesthesiology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Y Cui
- Department of Anesthesiology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China.
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Gao X, McFadden WM, Wen X, Emanuelli A, Lorson ZC, Zheng H, Kirby KA, Sarafianos SG. Use of TSAR, Thermal Shift Analysis in R, to identify Folic Acid as a Molecule that Interacts with HIV-1 Capsid. bioRxiv 2023:2023.11.29.569293. [PMID: 38076946 PMCID: PMC10705415 DOI: 10.1101/2023.11.29.569293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Thermal shift assay (TSA) is a versatile biophysical technique for studying protein interactions. Here, we report a free, open-source software tool TSAR (Thermal Shift Analysis in R) to expedite and automate the analysis of thermal shift data derived either from individual experiments or large screens of chemical libraries. The TSAR package incorporates multiple, dynamic workflows to facilitate the analysis of TSA data and returns publication-ready graphics or processed results. Further, the package includes a graphic user interface (GUI) that enables easy use by non-programmers, aiming to simplify TSA analysis while diversifying visualization. To exemplify the utility of TSAR we screened a chemical library of vitamins to identify molecules that interact with the capsid protein (CA) of human immunodeficiency virus type 1 (HIV-1). Our data show that hexameric CA interacts with folic acid in vitro.
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Affiliation(s)
- X. Gao
- Center for ViroScience and Cure, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA
- Children’s Healthcare of Atlanta, Atlanta, GA
| | - W. M. McFadden
- Center for ViroScience and Cure, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA
- Children’s Healthcare of Atlanta, Atlanta, GA
| | - X. Wen
- Center for ViroScience and Cure, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA
- Children’s Healthcare of Atlanta, Atlanta, GA
| | - A. Emanuelli
- Center for ViroScience and Cure, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA
- Children’s Healthcare of Atlanta, Atlanta, GA
| | - Z. C. Lorson
- Center for ViroScience and Cure, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA
- Children’s Healthcare of Atlanta, Atlanta, GA
| | - H. Zheng
- Center for ViroScience and Cure, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA
- Children’s Healthcare of Atlanta, Atlanta, GA
| | - K. A. Kirby
- Center for ViroScience and Cure, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA
- Children’s Healthcare of Atlanta, Atlanta, GA
| | - S. G. Sarafianos
- Center for ViroScience and Cure, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA
- Children’s Healthcare of Atlanta, Atlanta, GA
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Wen X, Du J, Li Z, Liu N, Huo J, Li J, Ke W, Wu J, Fang X, Lin X. Establishment of linkage phase, using Oxford Nanopore Technologies, for preimplantation genetic testing of Coffin-Lowry syndrome with a de novo RPS6KA3 mutation. Front Genet 2023; 14:1169868. [PMID: 37779904 PMCID: PMC10538565 DOI: 10.3389/fgene.2023.1169868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 08/30/2023] [Indexed: 10/03/2023] Open
Abstract
Background: This study aimed to perform preimplantation genetic testing (PGT) for a female Coffin-Lowry Syndrome (CLS) patient with a de novo mutation (DNM) in RPS6KA3. It was challenging to establish the haplotype in this family because of the lack of information from affected family members. Hence, we explored a new and reliable strategy for the detection of the DNM in PGT, using Oxford Nanopore Technologies (ONT) and the MARSALA platform. Methods: We performed whole-exome sequencing (WES) on the proband and confirmed the pathogenic mutation by Sanger sequencing. The proband then underwent PGT to prevent the transmission of the pathogenic mutation to her offspring. We diverged from the conventional methods and used long-read sequencing (LRS) on the ONT platform to directly detect the mutation and nearby SNPs, for construction of the haplotype in the preclinical phase of PGT. In the clinical phase of embryo diagnosis, the MARSALA method was used to detect both the SNP-based haplotype and chromosome copy number variations (CNVs), in each blastocyst. Finally, a normal embryo was selected by comparison to the haplotype of the proband and transferred into the uterus. Sanger sequencing and karyotyping were performed by amniocentesis, at 17 weeks of gestation, to confirm the accuracy of PGT. Results: Using WES, we found the novel, heterozygous, pathogenic c.1496delG (p.Gly499Valfs*25) mutation of RPS6KA3 in the proband. The SNP-based haplotype that was linked to the pathogenic mutation site was successfully established in the proband, without the need for other family members to be tested with ONT. Eight blastocysts were biopsied to perform PGT and were assessed with a haplotype linkage analysis (30 SNP sites selected), to give results that were consistent with direct mutation detection using Sanger sequencing. The results of PGT showed that three of the eight blastocysts were normal, without the DNM. Moreover, the patient had a successful pregnancy, after transfer of a normal blastocyst into the uterus, and delivered a healthy baby. Conclusion: The ONT platform, combined with the MARSALA method, can be used to perform PGT for DNM patients without the need for other samples as a reference.
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Affiliation(s)
- Xiaojun Wen
- Reproductive Medicine Center, Boai Hospital of Zhongshan Affiliated to Southern Medical University, Zhongshan, China
| | - Jing Du
- Reproductive Medicine Center, Boai Hospital of Zhongshan Affiliated to Southern Medical University, Zhongshan, China
| | - Zhiming Li
- Reproductive Medicine Center, Boai Hospital of Zhongshan Affiliated to Southern Medical University, Zhongshan, China
| | - Nengqing Liu
- Reproductive Medicine Center, Boai Hospital of Zhongshan Affiliated to Southern Medical University, Zhongshan, China
| | - Junye Huo
- Reproductive Medicine Center, Boai Hospital of Zhongshan Affiliated to Southern Medical University, Zhongshan, China
| | - Jieliang Li
- Reproductive Medicine Center, Boai Hospital of Zhongshan Affiliated to Southern Medical University, Zhongshan, China
| | - Wanna Ke
- Reproductive Medicine Center, Boai Hospital of Zhongshan Affiliated to Southern Medical University, Zhongshan, China
| | - Jiaqi Wu
- Reproductive Medicine Center, Boai Hospital of Zhongshan Affiliated to Southern Medical University, Zhongshan, China
| | - Xiaowu Fang
- Reproductive Medicine Center, Boai Hospital of Zhongshan Affiliated to Southern Medical University, Zhongshan, China
| | - Xiufeng Lin
- Reproductive Medicine Center, Boai Hospital of Zhongshan Affiliated to Southern Medical University, Zhongshan, China
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
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Liu N, Wen X, Ou Z, Fang X, Du J, Lin X. Case report: Preimplantation genetic testing for X-linked alport syndrome caused by variation in the COL4A5 gene. Front Pediatr 2023; 11:1177019. [PMID: 37635800 PMCID: PMC10448762 DOI: 10.3389/fped.2023.1177019] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Accepted: 07/28/2023] [Indexed: 08/29/2023] Open
Abstract
X-Linked Alport Syndrome (XLAS) is an X-linked, dominant, hereditary nephropathy mainly caused by mutations in the COL4A5 gene, found on chromosome Xq22. In this study, we reported a pedigree with XLAS caused by a COL4A5 mutation. This family gave birth to a boy with XLAS who developed hematuria and proteinuria at the age of 1 year. We used next-generation sequencing (NGS) to identify mutations in the proband and his parents and confirmed the results using Sanger sequencing. This testing showed there was a single nucleotide missense variation, c.3659G>A (p.Gly1220Asp) (NM_033380.3), in the COL4A5 gene. To prevent the inheritance of the syndrome, we used eight embryos for trophoblast biopsy after assisted reproductive technology treatment, and whole genome amplification (WGA) was performed using multiple annealing and looping-based amplification cycles (MALBAC). Embryos were subjected to Preimplantation Genetic Testing (PGT) procedures, including Sanger sequencing, NGS-based single nucleotide polymorphism (SNP) haplotype linkage analysis, and chromosomal copy number variation (CNV) analysis. The results showed that three embryos (E1, E2, and E4) were free of CNV and genetic variation in the COL4A5 gene. Embryo E1 (4AA) was transferred after consideration of the embryo growth rate, morphology, and PGT results. Prenatal diagnosis in the second trimester showed that the fetus had a normal karyotype and did not carry the COL4A5 mutation (c.3659G>A). Ultimately, a healthy boy was born and did not carry the pathogenic COL4A5 mutation, which indicated that PGT prevented the intergenerational transmission of the causative mutation of XLAS.
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Affiliation(s)
- Nengqing Liu
- Reproductive Center, Zhongshan Boai Hospital, Zhongshan, China
| | - Xiaojun Wen
- Reproductive Center, Zhongshan Boai Hospital, Zhongshan, China
| | - Zhanhui Ou
- Reproductive Center, Zhongshan Boai Hospital, Zhongshan, China
| | - Xiaowu Fang
- Reproductive Center, Zhongshan Boai Hospital, Zhongshan, China
| | - Jing Du
- Reproductive Center, Zhongshan Boai Hospital, Zhongshan, China
| | - Xiufeng Lin
- Reproductive Center, Zhongshan Boai Hospital, Zhongshan, China
- The Second Clinical College, Southern Medical University, Guangzhou, China
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Chen MY, Wen YH, Wen X, He R, Huang ZX, Li J, Wen WP. [Oncologic outcomes of surgical treatments of advanced sinonasal malignancies]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:431-437. [PMID: 37100750 DOI: 10.3760/cma.j.cn115330-20221001-00588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
Objective: To investigate the prognoses of advanced (T3-T4) sinonasal malignancies (SNM). Methods: The clinical data of 229 patients with advanced (T3-4) SNM who underwent surgical treatments in the First Affiliated Hospital of Sun Yat-sen University from 2000 to 2018 were retrospectively analyzed, including 162 males and 67 females, aged (46.8±18.5) years old. Among them, 167 cases received endoscopic surgery alone, 30 cases received assisted incision endoscopic surgery, and 32 cases received open surgery. The Kaplan-Meier method was used to estimate the 3-year and 5-year overall survival (OS) and event-free survival (EFS). Univariate and multivariate Cox regression analyses were performed to explore significant prognostic factors. Results: The 3-year and 5-year OS were respectively 69.7% and 64.0%. The median OS time was 43 months. The 3-year and 5-year EFS were respectively 57.8% and 47.4%. The median EFS time was 34 months. The 5-year OS of the patients with epithelial-derived tumors was better than that of the patients with mesenchymal-derived tumors and malignant melanoma (5-year OS was respectively 72.3%, 47.8% and 30.0%, χ2=36.01, P<0.001). Patients with microscopically margin-negative resection (R0 resection) had the best prognosis, followed by macroscopically margin-negative resection (R1 resection), and debulking surgery was the worst (5-year OS was respectively 78.4%, 55.1% and 37.4%, χ2=24.63, P<0.001). There was no significant difference in 5-year OS between the endoscopic surgery group and the open surgery group (65.8% vs. 53.4%, χ2=2.66, P=0.102). Older patients had worse OS (HR=1.02, P=0.011) and EFS (HR=1.01, P=0.027). Patients receiving adjuvant therapy had a lower risk of death (HR=0.62, P=0.038). Patients with a history of nasal radiotherapy had a higher risk of recurrence (HR=2.48, P=0.002) and a higher risk of death (HR=2.03, P=0.020). Conclusion: For patients with advanced SNM, the efficacy of endoscopic surgery can be comparable to that of open surgery when presence of safe surgical margins, and a treatment plan based on transnasal endoscopic surgery as the main comprehensive treatment is recommended.
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Affiliation(s)
- M Y Chen
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Sun Yat-sen University, the Institute of Otorhinolaryngology of Sun Yat-sen University, Guangzhou Key Laboratory of Otorhinolaryngology Head and Neck Surgery, Guangzhou 510080, China
| | - Y H Wen
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Sun Yat-sen University, the Institute of Otorhinolaryngology of Sun Yat-sen University, Guangzhou Key Laboratory of Otorhinolaryngology Head and Neck Surgery, Guangzhou 510080, China
| | - X Wen
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Sun Yat-sen University, the Institute of Otorhinolaryngology of Sun Yat-sen University, Guangzhou Key Laboratory of Otorhinolaryngology Head and Neck Surgery, Guangzhou 510080, China
| | - R He
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Sun Yat-sen University, the Institute of Otorhinolaryngology of Sun Yat-sen University, Guangzhou Key Laboratory of Otorhinolaryngology Head and Neck Surgery, Guangzhou 510080, China
| | - Z X Huang
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Sun Yat-sen University, the Institute of Otorhinolaryngology of Sun Yat-sen University, Guangzhou Key Laboratory of Otorhinolaryngology Head and Neck Surgery, Guangzhou 510080, China
| | - J Li
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Sun Yat-sen University, the Institute of Otorhinolaryngology of Sun Yat-sen University, Guangzhou Key Laboratory of Otorhinolaryngology Head and Neck Surgery, Guangzhou 510080, China
| | - W P Wen
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Sun Yat-sen University, the Institute of Otorhinolaryngology of Sun Yat-sen University, Guangzhou Key Laboratory of Otorhinolaryngology Head and Neck Surgery, Guangzhou 510080, China
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Zhou K, Wu F, Zhao N, Zheng Y, Deng Z, Yang H, Wen X, Xiao S, Yang C, Chen S, Zhou Y, Ran P. Association of pectoralis muscle area on computed tomography with airflow limitation severity and respiratory outcomes in COPD: A population-based prospective cohort study. Pulmonology 2023:S2531-0437(23)00039-9. [PMID: 36907812 DOI: 10.1016/j.pulmoe.2023.02.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 02/08/2023] [Accepted: 02/10/2023] [Indexed: 03/12/2023] Open
Abstract
BACKGROUND Previous studies have shown that patients with chronic obstructive pulmonary disease (COPD) of severe or very severe airflow limitation have a reduced pectoralis muscle area (PMA), which is associated with mortality. However, whether patients with COPD of mild or moderate airflow limitation also have a reduced PMA remains unclear. Additionally, limited evidence is available regarding the associations between PMA and respiratory symptoms, lung function, computed tomography (CT) imaging, lung function decline, and exacerbations. Therefore, we conducted this study to evaluate the presence of PMA reduction in COPD and to clarify its associations with the referred variables. METHODS This study was based on the subjects enrolled from July 2019 to December 2020 in the Early Chronic Obstructive Pulmonary Disease (ECOPD) study. Data including questionnaire, lung function, and CT imaging were collected. The PMA was quantified on full-inspiratory CT at the aortic arch level using predefined -50 and 90 Hounsfield unit attenuation ranges. Multivariate linear regression analyses were performed to assess the association between the PMA and airflow limitation severity, respiratory symptoms, lung function, emphysema, air trapping, and the annual decline in lung function. Cox proportional hazards analysis and Poisson regression analysis were used to evaluate the PMA and exacerbations after adjustment. RESULTS We included 1352 subjects at baseline (667 with normal spirometry, 685 with spirometry-defined COPD). The PMA was monotonically lower with progressive airflow limitation severity of COPD after adjusting for confounders (vs. normal spirometry; Global Initiative for Chronic Obstructive Lung Disease [GOLD] 1: β=-1.27, P=0.028; GOLD 2: β=-2.29, P<0.001; GOLD 3: β=-4.88, P<0.001; GOLD 4: β=-6.47, P=0.014). The PMA was negatively associated with the modified British Medical Research Council dyspnea scale (β=-0.005, P=0.026), COPD Assessment Test score (β=-0.06, P=0.001), emphysema (β=-0.07, P<0.001), and air trapping (β=-0.24, P<0.001) after adjustment. The PMA was positively associated with lung function (all P<0.05). Similar associations were discovered for the pectoralis major muscle area and pectoralis minor muscle area. After the 1-year follow-up, the PMA was associated with the annual decline in the post-bronchodilator forced expiratory volume in 1 s percent of predicted value (β=0.022, P=0.002) but not with the annual rate of exacerbations or the time to first exacerbation. CONCLUSION Patients with mild or moderate airflow limitation exhibit a reduced PMA. The PMA is associated with airflow limitation severity, respiratory symptoms, lung function, emphysema, and air trapping, suggesting that PMA measurement can assist with COPD assessment.
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Affiliation(s)
- K Zhou
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - F Wu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China; Guangzhou Laboratory, Bio-island, Guangzhou, China
| | - N Zhao
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Y Zheng
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Z Deng
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - H Yang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - X Wen
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - S Xiao
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - C Yang
- Department of Pulmonary and Critical Care Medicine, Wengyuan County People's Hospital, Shaoguan, China
| | - S Chen
- Medical Imaging Center, Wengyuan County People's Hospital, Shaoguan, China
| | - Y Zhou
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China; Guangzhou Laboratory, Bio-island, Guangzhou, China.
| | - P Ran
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China; Guangzhou Laboratory, Bio-island, Guangzhou, China.
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Zhao C, Wen X, Feng JL, Li WR, Wu D. [Effects of insulin glargine at different times on organ oxidative stress in burned rats with delayed resuscitation]. Zhonghua Yi Xue Za Zhi 2022; 102:3476-3481. [PMID: 36396365 DOI: 10.3760/cma.j.cn112137-20220711-01529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective: To examine the antioxidant effect of low dosage insulin glargine intervention at different time in rats with delayed resuscitation after burn, in order to acquire a better time of antioxidant intervention during delayed resuscitation following burn injury. Methods: With 10 rats in each group, 50 male SD rats were assigned to sham injury group, delayed resuscitation group, immediate post-burn insulin glargine treatment group (immediate treatment group), 2 hours post-burn insulin glargine treatment group(2 h treatment group), and 6 hours post-burn insulin treatment group(6 h treatment group) with random number table. Each treatment group received subcutaneous injections of insulin glargine (1.0 U·kg-1·d-1) immediately, two hours and six hours after the burn, while the delayed resuscitation group received the same amount of normal saline six hours after the burn. To imitate delayed fluid resuscitation, the delayed resuscitation group and each therapy group were intraperitoneally injected with normal saline (40 ml/kg) 6 hours after injury. No medicine and fluid resuscitation was administered to the sham injury group. Rats in the sham injury group had their abdominal aortic blood, hearts, and kidney tissues collected immediately after injury, while rats in the other groups had their blood and tissues collected 24 hours later. To analyze the timing of antioxidant intervention, the activities of CuZn-superoxide dismutase (CuZn-SOD), catalase (CAT), glutathione peroxidase (GSH-Px), total antioxidant capacity (T-AOC), xanthine oxidase (XOD) and myeloperoxidase (MPO) in blood glucose and myocardial and renal tissues were measured by spectrophotometry. Results: Compared with the sham group, blood glucose levels in the delayed resuscitation group increased [(10.72±0.80) vs (6.57±0.82)mmol/L,P<0.001], while in the myocardium and kidney, the activities of CuZn-SOD, CAT, GSH-Px and T-AOC decreased (all P<0.05) and the activities of XOD and MPO increased (all P<0.05). Compared with the delayed resuscitation group, blood glucose decreased in the immediate, 2 h, and 6 h treatment groups (all P<0.05). In the immediate and 2 h treatment group, the activities of CuZn-SOD, CAT, GSH-Px and T-AOC in the myocardium and kidney increased(all P<0.05). In the 6 h treatment group, only the activities of GSH-Px in myocardium, CAT and GSH-Px in kidney increased (all P<0.05). Compared with the delayed resuscitation group, in the immediate treatment group, the activities of MPO and XOD in myocardial tissue and XOD in renal tissue decreased (all P<0.05). The activities of MPO and XOD in myocardial and renal tissues of the 2 h treatment group both decreased (all P<0.05). In the 6 h treatment group, the activities of MPO in myocardial tissue and XOD in renal tissue both decreased (all P<0.05). Compared with the immediate treatment group, the activity of GSH-Px in myocardial tissue increased (P<0.05), and the activities of CuZn-SOD, CAT, GSH-Px and T-AOC in renal tissue increased in the 2 h treatment group (all P<0.05). The activities of CuZn-SOD, CAT, GSH-Px and T-AOC in myocardium of 6 h treatment group decreased (all P<0.05). Compared with the immediate treatment group, the activities of XOD and MPO in myocardial tissue and XOD in renal tissue of the 2 h treatment group had no significant difference (all P>0.05), but the activity of MPO in renal tissue decreased (P<0.05). The activities of XOD and MPO in myocardial tissue of the 6 h treatment group increased (all P<0.05). Compared with the 2 h treatment group, the activities of CuZn-SOD, CAT and GSH-Px and T-AOC in myocardium and kidney tissues in the 6 h treatment group decreased (all P<0.05), while the activities of XOD and MPO in myocardium and kidney tissues increased [myocardium: (374±8) vs (290±19) U/g, (0.021 8±0.003 9) vs (0.010 7±0.002 4) U/g, kidney: (157±6) vs (128±9) U/g, (0.026 8±0.004 3) vs (0.013 4±0.003 1) U/g, all P<0.05]. Conclusions: The timing of the intervention is related to the antioxidant effect of insulin glargine during delayed burn resuscitation. The intervention immediately and 2 hours after burn could have a better antioxidant effect compared to the intervention at 6 hours after burn.
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Affiliation(s)
- C Zhao
- Department of Burns and Plastic Surgery, Guizhou Medical University Affiliated Hospital, Guiyang 550004, China
| | - X Wen
- Department of Burns and Plastic Surgery, Guizhou Medical University Affiliated Hospital, Guiyang 550004, China
| | - J L Feng
- Department of Burns and Plastic Surgery, Guizhou Medical University Affiliated Hospital, Guiyang 550004, China
| | - W R Li
- Department of Burns and Plastic Surgery, Guizhou Medical University Affiliated Hospital, Guiyang 550004, China
| | - Dili Wu
- Department of Burns and Plastic Surgery, Guizhou Provincial People's Hospital,Guiyang 550002, China
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Zhou L, Wen X, Min Y, He J, You L, Li J. Surface enhanced Raman spectroscopy based on Ag@mZrO2@Ag nanocomposites: Sensing and photocatalytic reduction of chromium(VI). J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120749] [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: 11/09/2022]
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Yao B, Wen X, Li P. Next Flight Prediction for PKX's Frequent Flyers. INT J ARTIF INTELL T 2022. [DOI: 10.1142/s0218213022500488] [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: 11/18/2022]
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Tang XR, Li R, Zhao F, Wen X, Wang YK, Lv RX. 1583P Evaluation of immune checkpoint inhibitors rechallenge after immune-related adverse events in patients with cancer. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1676] [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: 11/26/2022] Open
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Wu L, Pu X, Lin G, Xiao M, Lin J, Wang Q, Kong Y, Yan X, Xu F, Xu Y, Li J, Li K, Chen B, Wen X, Tan Y. EP08.01-094 A Phase II Study of Camrelizumab combined with Apatinib and Albumin Paclitaxel in Advanced Non-squamous NSCLC (CAPAP-lung). J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.665] [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: 11/26/2022]
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Wen H, Feng Z, H. Ge, Quan C, Zhou X, Yang B, Liu F, Wang J, Y. Wang, J. Zhao, Zhou G, Wen X, Liu Y, Zhu X, Wang G, Zhang Y, Li B, Cai S, Zhang Z, Wu X. 603P Multi-cancer early detection in gynaecological malignancies based on integrating multi-omics assays by liquid biopsy: A prospective study. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.731] [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] Open
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Li R, Tang XR, Wang YK, Wen X, Ren XY, Lv RX, Zhao F. 88P DNA-methylome derived epigenetic fingerprint as an immunophenotype indicator prompts durable clinical immunotherapeutic benefits in head and neck squamous cell carcinoma. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Li J, Xu L, Peng Z, Jiang H, Chao F, Ding Y, Moll J, Li D, Wen X, Wang J, Ding Q, Zhang L, Kristiansen K, Brix S, Zhang X. 841P Effects of immune checkpoint inhibitor-based combination therapies on the gut microbiota in advanced melanoma patients. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.967] [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: 11/24/2022] Open
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Wen X, Meakin C, Slitt A, Aleksunes L. P07-50 Inhibition of BCRP efflux transporter by persistent perfluoroalkyl chemicals. Toxicol Lett 2022. [DOI: 10.1016/j.toxlet.2022.07.393] [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: 11/29/2022]
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Tsoi L, Zhang Z, Patrick M, Zhang H, Wasikowski R, Gudjonsson J, Wen X, Nair R, Elder J. 512 Integrative analysis using allele specific accessibility in immunocytes to unravel biological effect for complex skin-disease associated loci. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.521] [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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22
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Tran-Guzman A, Moradian R, Walker C, Cui H, Corpuz M, Gonzalez I, Nguyen C, Meza P, Wen X, Culty M. Toxicity Profiles and Protective Effects of Antifreeze Proteins From Insect in Mammalian Models. Toxicol Lett 2022; 368:9-23. [PMID: 35901986 PMCID: PMC10174066 DOI: 10.1016/j.toxlet.2022.07.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 03/22/2022] [Revised: 06/24/2022] [Accepted: 07/19/2022] [Indexed: 11/18/2022]
Abstract
Antifreeze proteins (AFPs), found in many cold-adapted organisms, can protect them from cold and freezing damages and have thus been considered as additional protectants in current cold tissue preservation solutions that generally include electrolytes, osmotic agents, colloids and antioxidants, to reduce the loss of tissue viability associated with cold-preservation. Due to the lack of toxicity profile studies on AFPs, their inclusion in cold preservation solutions has been a trial-and-error process limiting the development of AFPs' application in cold preservation. To assess the feasibility of translating the technology of AFPs for mammalian cell cold or cryopreservation, we determined the toxicity profile of two highly active beetle AFPs, DAFP1 and TmAFP, from Dendroides canadensis and Tenebrio molitor in this study. Toxicity was examined on a panel of representative mammalian cell lines including testicular spermatogonial stem cells and Leydig cells, macrophages, and hepatocytes. Treatments with DAFP1 and TmAFP at up to 500μg/mL for 48 and 72hours were safe in three of the cell lines, except for a 20% decrease in spermatogonia treated with TmAFP. However, both AFPs at 500μg/mL or below reduced hepatocyte viability by 20 to 40% at 48 and 72h. At 1000μg/mL, DAFP1 and TmAFP reduced viability in most cell lines. While spermatogonia and Leydig cell functions were not affected by 1000μg/mL DAFP1, this treatment induced inflammatory responses in macrophages. Adding 1000μg/ml DAFP1 to rat kidneys stored at 4°C for 48hours protected the tissues from cold-related damage, based on tissue morphology and gene and protein expression of two markers of kidney function. However, DAFP1 and TmAFP did not prevent the adverse effects of cold on kidneys over 72hours. Overall, DAFP1 is less toxic at high dose than TmAFP, and has potential for use in tissue preservation at doses up to 500μg/mL. However, careful consideration must be taken due to the proinflammatory potential of DAFP1 on macrophages at higher doses and the heighten susceptibility of hepatocytes to both AFPs.
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Affiliation(s)
- A Tran-Guzman
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA, USA
| | - R Moradian
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA, USA
| | - C Walker
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA, USA
| | - H Cui
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA, USA
| | - M Corpuz
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA, USA
| | - I Gonzalez
- Department of Chemistry and Biochemistry, California State University, Los Angeles, Los Angeles, CA, USA
| | - C Nguyen
- Department of Chemistry and Biochemistry, California State University, Los Angeles, Los Angeles, CA, USA
| | - P Meza
- Department of Chemistry and Biochemistry, California State University, Los Angeles, Los Angeles, CA, USA
| | - X Wen
- Department of Chemistry and Biochemistry, California State University, Los Angeles, Los Angeles, CA, USA
| | - M Culty
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA, USA.
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Wen X, Chen W, Hou J, Wu H, Liu Y, Sun C. SYNTHESES, CHARACTERIZATION, AND CRYSTAL STRUCTURES OF COBALT(III) COMPLEXES DERIVED FROM 2-(((2- (PYRROLIDIN-1-YL)ETHYL)IMINO)METHYL) PHENOL WITH THE ANTIBACTERIAL ACTIVITY. J STRUCT CHEM+ 2022. [DOI: 10.1134/s0022476622020019] [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: 11/23/2022]
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Cao H, Wen X, Hong D, Li Y, Hong D. POS-688 FRAILTY RATE OF PERITONEAL DIALYSIS PATIENTS: A META-ANALYSIS. Kidney Int Rep 2022. [DOI: 10.1016/j.ekir.2022.01.722] [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: 10/19/2022] Open
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Wen X, Lin H. POS-412 INHIBITING POST-TRANSLATIONAL CORE FUCOSYLATION PREVENTS VASCULARCALCIFICATION IN THE MODEL OF UREMIA. Kidney Int Rep 2022. [DOI: 10.1016/j.ekir.2022.01.435] [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: 11/29/2022] Open
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Liu YQ, Gong K, Li XQ, Wen XY, An ZH, Cai C, Chang Z, Chen G, Chen C, Du YY, Gao M, Gao R, Guo DY, He JJ, Hou DJ, Li YG, Li CY, Li G, Li L, Li XF, Li MS, Liang XH, Liu XJ, Lu FJ, Lu H, Meng B, Peng WX, Shi F, Sun XL, Wang H, Wang JZ, Wang YS, Wang HZ, Wen X, Xiao S, Xiong SL, Xu YB, Xu YP, Yang S, Yang JW, Yi QB, Zhang F, Zhang DL, Zhang SN, Zhang CY, Zhang CM, Zhang F, Zhao XY, Zhao Y, Zhou X. The data acquisition algorithm designed for the SiPM-based detectors of GECAM satellite. Radiat Detect Technol Methods 2022. [DOI: 10.1007/s41605-021-00311-3] [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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Tang K, Dong B, Wen X, Yin Y, Xue M, Su Z, Wang M. [Ectopic expression of the AmDREB1F gene from Ammopiptanthus mongolicus enhances stress tolerance of transgenic Arabidopsis]. Sheng Wu Gong Cheng Xue Bao 2021; 37:4329-4341. [PMID: 34984878 DOI: 10.13345/j.cjb.210092] [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] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Dehydration-responsive element binding proteins (DREBs) are an important class of transcription factors related to plant stress tolerance. Ammopiptanthus mongolicus is an evergreen broadleaf shrub endemic to desert areas of northwest China, and it has a very high tolerance to harsh environments. In order to reveal the functions and mechanisms of the AmDREB1F gene from this species in enduring abiotic stresses, we performed subcellular localization test, expression pattern analysis, and stress tolerance evaluation of transgenic Arabidopsis harboring this gene. The protein encoded by AmDREB1F was localized in the nucleus. In laboratory-cultured A. mongolicus seedlings, the expression of AmDREB1F was induced significantly by cold and drought but very slightly by salt and heat stresses, and undetectable upon ABA treatment. In leaves of naturally growing shrubs in the wild, the expression levels of the AmDREB1F gene were much higher during the late autumn, winter and early spring than in other seasons. Moreover, the expression was abundant in roots and immature pods rather than other organs of the shrubs. Constitutive expression of AmDREB1F in Arabidopsis induced the expression of several DREB-regulated stress-responsive genes and improved the tolerance of transgenic lines to drought, high salinity and low temperature as well as oxidative stress. The constitutive expression also caused growth retardation of the transgenics, which could be eliminated by the application of gibberellin 3. Stress-inducible expression of AmDREB1F also enhanced the tolerance of transgenic Arabidopsis to all of the four stresses mentioned above, without affecting its growth and development. These results suggest that AmDREB1F gene may play positive regulatory roles in response to abiotic stresses through the ABA-independent signaling pathways.
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Affiliation(s)
- Kuangang Tang
- College of Life Sciences, Inner Mongolia Agricultural University, Hohhot 010018, Inner Mongolia, China
| | - Bo Dong
- College of Life Sciences, Inner Mongolia Agricultural University, Hohhot 010018, Inner Mongolia, China
| | - Xiaojun Wen
- College of Life Sciences, Inner Mongolia Agricultural University, Hohhot 010018, Inner Mongolia, China
| | - Yumei Yin
- College of Life Sciences, Inner Mongolia Agricultural University, Hohhot 010018, Inner Mongolia, China
| | - Min Xue
- College of Life Sciences, Inner Mongolia Agricultural University, Hohhot 010018, Inner Mongolia, China
| | - Zixian Su
- College of Life Sciences, Inner Mongolia Agricultural University, Hohhot 010018, Inner Mongolia, China
| | - Maoyan Wang
- College of Life Sciences, Inner Mongolia Agricultural University, Hohhot 010018, Inner Mongolia, China
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Cho B, Rodriguez-Abreu D, Hussein M, Cobo M, Patel A, Secen N, Gerstner G, Kim DW, Lee YG, Su WC, Huang E, Patil N, Huang M, Zhang Z, Wen X, Mendus D, Hoang T, Meng R, Johnson M. LBA2 Updated analysis and patient-reported outcomes (PROs) from CITYSCAPE: A randomised, double-blind, phase II study of the anti-TIGIT antibody tiragolumab + atezolizumab (TA) versus placebo + atezolizumab (PA) as first-line treatment for PD-L1+ NSCLC. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.10.217] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Li XQ, Wen XY, An ZH, Cai C, Chang Z, Chen G, Chen C, Du YY, Gao M, Gao R, Gong K, Guo DY, He JJ, Hou DJ, Li YG, Li CY, Li G, Li L, Li XF, Li MS, Liang XH, Liu XJ, Liu YQ, Lu FJ, Lu H, Meng B, Peng WX, Shi F, Sun XL, Wang H, Wang JZ, Wang YS, Wang HZ, Wen X, Xiao S, Xiong SL, Xu YB, Xu YP, Yang S, Yang JW, Yi QB, Zhang DL, Zhang F, Zhang SN, Zhang CY, Zhang CM, Zhang F, Zhao XY, Zhao Y, Zhou X, Zhang CS, Yu JP, Chang L, Zhang KK, Huang J, Chen YM, Han XB. The technology for detection of gamma-ray burst with GECAM satellite. Radiat Detect Technol Methods 2021. [DOI: 10.1007/s41605-021-00288-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Martone G, Lehman H, Rideout T, Carmeron C, Wen X. A050 DELAYED EGG INTRODUCTION AND LESS FREQUENT EGG INTAKE AND INCREASED EGG ALLERGY IN CHILDHOOD. Ann Allergy Asthma Immunol 2021. [DOI: 10.1016/j.anai.2021.08.034] [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: 10/19/2022]
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31
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Dziadziuszko R, Ahn M, Kelly K, Popat S, Wakelee H, Baird A, Rooney I, Afshari M, Coleman S, Zhang Z, Kiruki H, Patil N, Wen X, Bradley J. SKYSCRAPER-03: A Phase III, Open-Label, Randomized Study of Atezolizumab Plus Tiragolumab Compared With Durvalumab in Patients With Locally Advanced, Unresectable, Stage III NSCLC Who Have Not Progressed After Platinum-Based Concurrent Chemoradiation. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1203] [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: 11/26/2022]
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Luo Y, Yang Z, Li M, Zhao M, Wen X, Zhou Z. [Mage-D1 binding to activated p75NTR positively regulates mineralization of rat ectomesenchymal stem cells in vitro]. Nan Fang Yi Ke Da Xue Xue Bao 2021; 41:1547-1553. [PMID: 34755671 DOI: 10.12122/j.issn.1673-4254.2021.10.14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To detect the binding of Mage-D1 with activated p75NTR and explore their role in regulating mineralization of ectomesenchymal stem cells (EMSCs). METHODS EMSCs were isolated from the tooth germs of embryonic SD rats (19.5 days of gestation) by tissue explant culture and were identified for surface markers using flow cytometry. The cultured cells were divided into blank control group, 100 ng/mL nerve growth factor (NGF) stimulation group, and lentivirus-mediated Mage-D1 interference (SH-Mage-D1) group. Proximity ligation assay was used to detect the binding of Mage-D1 with activated p75NTR in the EMSCs, and the binding strength was compared among the 3 groups. Alizarin red staining and ALP staining were used to observe mineralization of the induced cells. The expressions of ALP, Runx2, OCN, BSP, OPN, Msx1 and Dlx1 at both the mRNA and protein levels were detected using RT-PCR and Western blotting. RESULTS The isolated EMSCs expressed high levels of cell surface markers CD44, CD90, CD29, CD146, and CD105 with a low expression of CD45. The results of proximity ligation assay showed that the binding of Mage-D1 with activated p75NTR in the cells increased over time, and the binding strength was significantly greater in NFG-treated cells than in the cells in the other two groups (P < 0.05). Alizarin red staining and ALP staining of the induced cells showed that the changes in the mineralization nodules were consistent with those of ALP activity. The cells treated with 100 ng/mL NGF exhibited significantly increased expressions of ALP, Runx2, OCN, BSP, OPN, Col1, Msx1 and Dlx1 as compared with the cells in the other two groups (P < 0.05). CONCLUSION Mage-D1 directly binds to activated p75NTR in embryonic rat EMSCs to positively regulate the mineralization of the EMSCs.
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Affiliation(s)
- Y Luo
- Stomatological Hospital of Chongqing Medical University.,Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences.,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - Z Yang
- Stomatological Hospital of Chongqing Medical University
| | - M Li
- Stomatological Hospital of Chongqing Medical University.,Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences.,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - M Zhao
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences
| | - X Wen
- Department of Orthodontics, Hospital of Stomatology, Southwest Medical University, Luzhou 646000, China
| | - Z Zhou
- Stomatological Hospital of Chongqing Medical University
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Wen X, Li Q, Mao H, Wen X, Chen N. An Improved Slice Reconciliation Protocol for Continuous-Variable Quantum Key Distribution. Entropy (Basel) 2021; 23:e23101317. [PMID: 34682041 PMCID: PMC8534703 DOI: 10.3390/e23101317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 10/03/2021] [Accepted: 10/07/2021] [Indexed: 11/16/2022]
Abstract
Reconciliation is an essential procedure for continuous-variable quantum key distribution (CV-QKD). As the most commonly used reconciliation protocol in short-distance CV-QKD, the slice error correction (SEC) allows a system to distill more than 1 bit from each pulse. However, the quantization efficiency is greatly affected by the noisy channel with a low signal-to-noise ratio (SNR), which usually limits the secure distance to about 30 km. In this paper, an improved SEC protocol, named Rotated-SEC (RSEC), is proposed through performing a random orthogonal rotation on the raw data before quantization, and deducing a new estimator for the quantized sequences. Moreover, the RSEC protocol is implemented with polar codes. The experimental results show that the proposed protocol can reach up to a quantization efficiency of about 99%, and maintain at around 96% even at the relatively low SNRs (0.5,1), which theoretically extends the secure distance to about 45 km. When implemented with the polar codes with a block length of 16 Mb, the RSEC achieved a reconciliation efficiency of above 95%, which outperforms all previous SEC schemes. In terms of finite-size effects, we achieved a secret key rate of 7.83×10-3 bits/pulse at a distance of 33.93 km (the corresponding SNR value is 1). These results indicate that the proposed protocol significantly improves the performance of SEC and is a competitive reconciliation scheme for the CV-QKD system.
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Affiliation(s)
- Xuan Wen
- Department of Computer Science and Technology, Harbin Institute of Technology, Harbin 150000, China; (X.W.); (H.M.)
| | - Qiong Li
- Department of Computer Science and Technology, Harbin Institute of Technology, Harbin 150000, China; (X.W.); (H.M.)
- Correspondence: (Q.L.); (X.W.)
| | - Haokun Mao
- Department of Computer Science and Technology, Harbin Institute of Technology, Harbin 150000, China; (X.W.); (H.M.)
| | - Xiaojun Wen
- School of Electronics and Information Engineering, Shenzhen Polytechnic, Shenzhen 518000, China
- Correspondence: (Q.L.); (X.W.)
| | - Nan Chen
- School of Foreign Languages, Harbin Institute of Technology, Harbin 150000, China;
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Dziadziuszko R, Ahn MJ, Kelly K, Popat S, Wakelee H, Baird AM, Rooney I, Afshari M, Yao E, Zhang Z, Kuriki H, Patil N, Wen X, Bradley J. 1190TiP SKYSCRAPER-03: Phase III, open-label randomised study of atezolizumab + tiragolumab vs durvalumab in patients with locally advanced, unresectable, stage III non-small cell lung cancer (NSCLC) who have not progressed after platinum-based concurrent chemoradiation (cCRT). Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1794] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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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Wainberg Z, Matos I, Delord J, Cassier P, Gil-Martin M, Kim T, LoRusso P, Bahleda R, Italiano A, Mendus D, Hoang T, Xue C, Wen X, Carvalho O, Pham T, Patil N, Meng R, Bendell J, Cervantes A, Cho B. LBA-5 Phase Ib study of the anti-TIGIT antibody tiragolumab in combination with atezolizumab in patients with metastatic esophageal cancer. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.06.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Zhang Z, Zhao Y, Tsoi L, Nair R, Stuart P, Wen X, Elder J. 183 Differential gene expression in psoriatic vs. normal T-cells is enhanced by CD3-CD28 activation. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abstract
Background Aortic regurgitation is the most common cardiovascular damage in Chinese patients with Behçet’s disease (BD) and is usually associated with aortic disease. These patients are easily misdiagnosed, and their prognosis is poor, even after surgical treatment. This study aimed to analyse potential factors that can improve the prognosis of BD patients with aortic regurgitation and/or aortic involvement. Methods Twenty-two patients with diagnosed or suspected BD as well as aortic regurgitation and/or aortic involvement in our hospital from 2012 through 2017 were collected in this study. Their clinical characteristics were listed, and the diagnosis of BD was evaluated by two different criteria sets. The influences of surgical treatment and immunosuppressive therapy (IST) on their prognosis were also explored. Results The diagnostic positive rate of the International Criteria for Behçet’s Disease was higher than that of the International Study Group criteria (kappa value 0.31, p < 0.05), indicating that the diagnostic consistency between the criteria sets was poor. There was no significant difference in survival between patients who had undergone ≤ 1 operation and those with ≥ 2 operations. Aortic valve replacement alone or in combination with aortic root replacement had no significant effect on the incidence of reoperation or death, but IST did significantly reduce this incidence (p < 0.05). However, there was no significant difference in the occurrence of reoperation or death between preoperative and postoperative IST versus postoperative IST only. Conclusion IST significantly improved the prognosis of BD patients with aortic regurgitation and/or aortic involvement. Supplementary Information The online version of this article (10.1007/s12471-021-01567-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- X Li
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China.,Research Institute of Blood Lipid and Atherosclerosis, Central South University, Changsha, Hunan, China.,Modern Cardiovascular Disease Clinical Technology Research Centre of Hunan Province, Changsha, Hunan, China.,Cardiovascular Disease Research Centre of Hunan Province, Changsha, Hunan, China
| | - X Wen
- Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - J Xu
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China.,Research Institute of Blood Lipid and Atherosclerosis, Central South University, Changsha, Hunan, China.,Modern Cardiovascular Disease Clinical Technology Research Centre of Hunan Province, Changsha, Hunan, China.,Cardiovascular Disease Research Centre of Hunan Province, Changsha, Hunan, China
| | - Q Lin
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China.,Research Institute of Blood Lipid and Atherosclerosis, Central South University, Changsha, Hunan, China.,Modern Cardiovascular Disease Clinical Technology Research Centre of Hunan Province, Changsha, Hunan, China.,Cardiovascular Disease Research Centre of Hunan Province, Changsha, Hunan, China
| | - L Liu
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China. .,Research Institute of Blood Lipid and Atherosclerosis, Central South University, Changsha, Hunan, China. .,Modern Cardiovascular Disease Clinical Technology Research Centre of Hunan Province, Changsha, Hunan, China. .,Cardiovascular Disease Research Centre of Hunan Province, Changsha, Hunan, China.
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Song W, Qian Y, Zhang MH, Wang H, Wen X, Yang XZ, Dai WJ. The long non-coding RNA DDX11-AS1 facilitates cell progression and oxaliplatin resistance via regulating miR-326/IRS1 axis in gastric cancer. Eur Rev Med Pharmacol Sci 2021; 24:3049-3061. [PMID: 32271422 DOI: 10.26355/eurrev_202003_20669] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The long non-coding RNA DDX11 antisense RNA 1 (DDX11-AS1) was found to be highly expressed in gastric cancer (GC). This study was to explore the role and molecular mechanism in oxaliplatin (OXA) resistance. PATIENTS AND METHODS The levels of DDX11-AS1, microRNA-326 (miR-326) and insulin receptor substrate 1 (IRS1) were measured by quantitative Real-time polymerase chain reaction (qRT-PCR). Cell proliferation, migration, invasion and apoptosis were examined by methylthiazolyldiphenyl-tetrazolium bromide (MTT), transwell and flow cytometry assays, respectively. Levels of all protein were detected using Western blot. The correlation between miR-326 and DDX11-AS1/IRS1 was confirmed by Dual-Luciferase reporter and RNA immunoprecipitation (RIP) assays. The xenograft model was constructed to explore the effect of DDX11-AS1 in vivo. RESULTS DDX11-AS1 was overexpressed in OXA-resistant GC tissues and cells, and DDX11-AS1 knockdown inhibited cell proliferation, migration, invasion and OXA resistance, and promoted apoptosis in OXA-resistant GC cells. Mechanically, DDX11-AS1 directly targeted miR-326 and miR-326 could bind to IRS1 in OXA-resistant GC cells. Functionally, silencing DDX11-AS1 repressed the progression and OXA resistance in OXA-resistant GC cells by down-modulating IRS1 expression via sponging miR-326 in vitro and in vivo. CONCLUSIONS DDX11-AS1 accelerated the progression and OXA chemoresistance of GC cells in vitro and in vivo by sponging miR-326, thus increasing the expression of IRS1, suggesting DDX11-AS1 might be a promising prognostic biomarker and therapeutic target in GC.
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Affiliation(s)
- W Song
- Department of Gastroenterology, The Affiliated Huai'an No. 1 People's Hospital of Nanjing Medical University, Huai'an, China.
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Takahashi N, Tlemsani C, Pongor L, Rajapakse V, Tyagi M, Wen X, Fasaye G, Schmidt K, Kim C, Rajan A, Swift S, Sciuto L, Vilimas R, Webb S, Nichols S, Figg W, Pommier Y, Calzone K, Steinberg S, Wei J, Guha U, Turner C, Khan J, Thomas A. OA11.05 Whole Exome Sequencing Reveals the Potential Role of Hereditary Predisposition in Small Cell Lung Cancer, a Tobacco-Related Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.315] [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: 10/21/2022]
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Bai J, Yu P, Wen X, Wang W, Jia J, Wang X. Effects of cadmium addition on net nitrogen mineralization processes in the urban constructed wetland soils of a Chinese delta. Environ Geochem Health 2021; 43:1155-1164. [PMID: 32419088 DOI: 10.1007/s10653-020-00597-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Accepted: 05/04/2020] [Indexed: 06/11/2023]
Abstract
Heavy metal pollution is a serious problem in wetland ecosystems, and the toxicity of heavy metals affects microorganisms, thus influencing the biogeochemical process of nitrogen (N). To investigate the effects of heavy metal cadmium (Cd) pollution on N mineralization in urban constructed wetland soils of the Pearl River Delta, a 40-day aerobic incubation experiment was conducted under three Cd addition treatments [no Cd addition (control), low Cd addition (LCA) and high Cd addition (HCA)]. The results showed that compared with the control, the LCA treatment enhanced the soil N mineralization rate (RM), while the HCA treatment inhibited RM, with the average RM values in the control treatment of 0.40 mg kg-1 day-1, LCA treatments (0.66 mg kg-1 day-1), and HCA treatments (0.21 mg kg-1 day-1). The average ammonification rate values in the LCA treatments (- 3.15 to 2.25 mg kg-1 day-1) were higher than those in the HCA treatments (- 2.39 to 0.74 mg kg-1 day-1) and the control treatment (- 0.68 to 0.90 mg kg-1 day-1) (P < 0.05). However, the nitrification values in the HCA treatments (- 0.37 to 3.36 mg kg-1 day-1) were higher than those in the LCA treatments (0.42-1.93 mg kg-1 day-1) and the control treatment (0.20-1.45 mg kg-1 day-1) (P < 0.05). The net N mineralization accumulation generally increased over the entire incubation time in different Cd addition treatments. The percentage of NH4+-N to total inorganic N showed a decrease, while an increase was observed for NO3--N over the incubation time. The urease activities were significantly inhibited in the LCA and HCA treatments and showed a "decreasing before increasing" trend. The abundance of ammonia oxidizing archaea (AOA) was higher in the two Cd addition treatments than the control treatment, and higher in the LCA treatments than in the HCA treatment. AOA was the dominant microorganism in the ammonia oxidation process of N mineralization in constructed wetland soils. The findings of this work indicate that Cd addition has a profound effect on the balance of N mineralization and may further impact the plant productivity and water quality of constructed wetlands.
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Affiliation(s)
- Junhong Bai
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, People's Republic of China.
| | - Peidong Yu
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, People's Republic of China
| | - Xiaojun Wen
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, People's Republic of China
| | - Wei Wang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, People's Republic of China
| | - Jia Jia
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, People's Republic of China
| | - Xin Wang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, People's Republic of China
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Zhu Y, Mao Y, Ma T, Wen X. Effect of culture conditions on conidia production and enhancement of environmental stress resistance of Esteya vermicola in solid-state fermentation. J Appl Microbiol 2020; 131:404-412. [PMID: 33305527 DOI: 10.1111/jam.14964] [Citation(s) in RCA: 4] [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] [Received: 08/24/2020] [Revised: 11/11/2020] [Accepted: 12/02/2020] [Indexed: 11/29/2022]
Abstract
AIMS Esteya vermicola is an endoparasitic fungus producing lunate conidia, which kill pine wood nematode (PWN), and PWN could cause pine wilt disease (PWD). The aims of this study were to increase production and confirm the resistance (temperature and UV irradiation) of lunate conidia, and further determine the effective concentrations of conidia infecting PWN. METHODS AND RESULTS In this study, rice was used as a carrier to absorb conidial suspension to propagate conidia. The optimal conditions for lunate conidia production were 25°C temperature, 9 days of culture time, 2 : 1 rice/distilled water ratio and 10% inoculum size. The germination rate of E. vermicola cultured on potato dextrose agar was influenced by UV irradiation, similar to growth on rice. Esteya vermicola cultured on rice under heat stress might be more suitable for application in the field. The concentration (1 × 108 conidia per ml) to kill PWN had the highest infectivity among the four conidia concentrations tested after 3 days of inoculation. CONCLUSIONS This study showed a rice substrate-supported high-quality conidia production and the optimal infectivity concentration of E. vermicola. SIGNIFICANCE AND IMPACT OF THE STUDY These results provide the necessary process of an economical and efficient biological control strategy against PWD.
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Affiliation(s)
- Y Zhu
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, Guangdong Province, PR China
| | - Y Mao
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, Guangdong Province, PR China
| | - T Ma
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, Guangdong Province, PR China
| | - X Wen
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, Guangdong Province, PR China
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Huang AP, Zhang HZ, Cui L, Geng JQ, Wen X, Wang J, Song YL. [Analysis on clinical characteristics, diagnosis and treatment of 13 cases of infant hairy polyp]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2020; 55:850-854. [PMID: 32911888 DOI: 10.3760/cma.j.cn115330-20200212-00079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore and analyze the clinical characteristics, diagnosis and treatment of infant hairy polyp. Methods: A retrospective analysis was made on 13 cases of hairy polyp confirmed by pathology, who were admitted to the Children's Hospital of Hebei Province from January 2010 to September 2019, including 4 males and 9 females, with a male-female ratio of 1∶2.25. The age ranged from 3 hours to 1 year, and the median age was 1 month. Twelve of the 13 children were found to have difficulty breathing or feeding. All the children received coblation resection under general anesthesia. The root pedicle of the mass was found in the lateral nasopharyngeal wall in 8 cases, in the junction of palatine and palatopharyngeal arch of tonsil and the tongue and esophageal entrance in 1 case, respectively. Nasal septum was found in 2 cases, including 1 case located between two incisors. The wound at the root pedicle was ablated and the bleeding was stopped completely. Results: Postoperative follow-up lasted from 3 months to 2 years, and there was no recurrence in 12 cases. Fibrolaryngoscope showed a mass of the right eustachian tube and pharyngeal mouth in 1 case 2 years after the surgery, which was considered recurrence of hairy polyps and lost after that. Conclusion: Hairy polyps in infants is a rare clinical disease, and its main symptom is upper respiratory tract obstruction. Early diagnosis and radical surgery are the key to the treatment of the disease.
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Affiliation(s)
- A P Huang
- Department of Otolaryngology, Children's Hospital of Hebei Province, Shijiazhuang 050030, China
| | - H Z Zhang
- Department of Otolaryngology, the Second Hospital of Hebei Medical University, Shijiazhuang 050005, China
| | - L Cui
- Department of Otolaryngology, Children's Hospital of Hebei Province, Shijiazhuang 050030, China
| | - J Q Geng
- Department of Otolaryngology, Children's Hospital of Hebei Province, Shijiazhuang 050030, China
| | - X Wen
- Department of Otolaryngology, Children's Hospital of Hebei Province, Shijiazhuang 050030, China
| | - J Wang
- Department of Otolaryngology, Children's Hospital of Hebei Province, Shijiazhuang 050030, China
| | - Y L Song
- Department of Otolaryngology, Children's Hospital of Hebei Province, Shijiazhuang 050030, China
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Yang J, Qiu Y, Hu S, Zhu C, Wang L, Wen X, Yang X, Jiang Z. Lactobacillus plantarum inhibited the inflammatory response induced by enterotoxigenic Escherichia coli K88 via modulating MAPK and NF-κB signalling in intestinal porcine epithelial cells. J Appl Microbiol 2020; 130:1684-1694. [PMID: 32870564 DOI: 10.1111/jam.14835] [Citation(s) in RCA: 4] [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] [Received: 06/01/2020] [Revised: 07/28/2020] [Accepted: 08/21/2020] [Indexed: 12/22/2022]
Abstract
AIMS To investigate the effects of Lactobacillus plantarum on inflammatory responses induced by ETEC K88 and explore the underlying molecular mechanisms. METHODS AND RESULTS Intestinal porcine cells (IPEC-1) were incubated with 0 or 1 × 108 CFU per well L. plantarum for 4 h, and then these cells were challenged with 0 or 1 × 108 CFU per well ETEC K88 for 2 h. The results showed that pre-treatment of IPEC-1 cells with L. plantarum prevented the increases in the transcript abundance of interleukin-1α (IL-1α), interleukin-6 (IL-6), interleukin-8 (IL-8) and tumour necrosis factor-α (TNF-α) (P < 0·05) caused by ETEC K88. Additionally, L. plantarum inhibited the reduction in peroxisome proliferator-activated receptor-γ (PPAR-γ) expression caused by ETEC K88 (P < 0·05). Moreover, L. plantarum pre-treatment downregulated the phosphorylation levels of c-Jun N-terminal kinase (JNK), extracellular regulated protein kinases 1 and 2 (ERK1/2) and p38 and the nuclear concentration of nuclear factor kappa B p65 (NF-κB p65) (P < 0·05) compared with ETEC K88 group. Silencing experiment further supported that the protective effect of L. plantarum P might mediated by suppression of ETEC-provoked activation of MAPK and NF-κB signalling pathways. CONCLUSIONS Lactobacillus plantarum inhibited the inflammatory response induced by ETEC K88 in IPEC-1 cells via modulating MAPK and NF-κB signalling. SIGNIFICANCE AND IMPACT OF THE STUDY This study elucidated the underlying mechanism in which probiotics protect against intestinal inflammation caused by ETEC K88.
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Affiliation(s)
- J Yang
- State Key Laboratory of Livestock and Poultry Breeding, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, Guangdong Public Laboratory of Animal Breeding and Nutrition; Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Y Qiu
- State Key Laboratory of Livestock and Poultry Breeding, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, Guangdong Public Laboratory of Animal Breeding and Nutrition; Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - S Hu
- State Key Laboratory of Livestock and Poultry Breeding, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, Guangdong Public Laboratory of Animal Breeding and Nutrition; Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - C Zhu
- State Key Laboratory of Livestock and Poultry Breeding, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, Guangdong Public Laboratory of Animal Breeding and Nutrition; Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - L Wang
- State Key Laboratory of Livestock and Poultry Breeding, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, Guangdong Public Laboratory of Animal Breeding and Nutrition; Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - X Wen
- State Key Laboratory of Livestock and Poultry Breeding, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, Guangdong Public Laboratory of Animal Breeding and Nutrition; Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - X Yang
- State Key Laboratory of Livestock and Poultry Breeding, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, Guangdong Public Laboratory of Animal Breeding and Nutrition; Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Z Jiang
- State Key Laboratory of Livestock and Poultry Breeding, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, Guangdong Public Laboratory of Animal Breeding and Nutrition; Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
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Mao L, Wen X, Y. xu, Si L, Zhang X, Fan Y, Guo J. 1109P Chinese subgroup results from an open-label, phase IIa study of dabrafenib plus trametinib in Asian patients with advanced BRAF V600-mutant melanoma (NCT02083354). Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1232] [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] Open
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Wen X, Zhang X, Li D, Li J, Ding Y. 1114P A real-world study of vemurafenib plus anti-PD-1 antibody in Chinese patients with advanced BRAF V600-mutant melanoma. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1237] [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: 10/23/2022] Open
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Qin S, Bi F, Cui C, Zhu B, Wu J, Xin X, Wang J, Shan J, Chen J, Zheng Z, Xu L, Wen X, You Z, Ren Z, Wu X. 982P Comparison of donafenib and sorafenib as advanced hepatocellular carcinoma first-line treatments: Subgroup analysis of an open-label, randomized, parallel-controlled, multicentre phase II/III trial. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1098] [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: 10/23/2022] Open
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Tang Y, Xing Y, Cui L, Wu C, Wen X, Song H, Wu L, Chang H, Song J, Wang Y, Zhao G. Neurology practice during the COVID-19 outbreak and post-pandemic era: experiences and challenges. Eur J Neurol 2020; 27:e81-e83. [PMID: 32779848 PMCID: PMC7404871 DOI: 10.1111/ene.14445] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 07/12/2020] [Indexed: 01/09/2023]
Affiliation(s)
- Y Tang
- Department of Neurology, Xuanwu Hospital, National Clinical Research Center for Geriatric Diseases, Capital Medical University, Beijing, China
| | - Y Xing
- Department of Neurology, Xuanwu Hospital, National Clinical Research Center for Geriatric Diseases, Capital Medical University, Beijing, China
| | - L Cui
- Department of Neurology, Xuanwu Hospital, National Clinical Research Center for Geriatric Diseases, Capital Medical University, Beijing, China
| | - C Wu
- Department of Neurology, Xuanwu Hospital, National Clinical Research Center for Geriatric Diseases, Capital Medical University, Beijing, China
| | - X Wen
- Department of Neurology, Xuanwu Hospital, National Clinical Research Center for Geriatric Diseases, Capital Medical University, Beijing, China
| | - H Song
- Department of Neurology, Xuanwu Hospital, National Clinical Research Center for Geriatric Diseases, Capital Medical University, Beijing, China
| | - L Wu
- Department of Neurology, Xuanwu Hospital, National Clinical Research Center for Geriatric Diseases, Capital Medical University, Beijing, China
| | - H Chang
- Department of Neurology, Xuanwu Hospital, National Clinical Research Center for Geriatric Diseases, Capital Medical University, Beijing, China
| | - J Song
- Department of Neurology, Xuanwu Hospital, National Clinical Research Center for Geriatric Diseases, Capital Medical University, Beijing, China
| | - Y Wang
- Department of Neurology, Xuanwu Hospital, National Clinical Research Center for Geriatric Diseases, Capital Medical University, Beijing, China
| | - G Zhao
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
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Tsoi L, Zhang Z, Stuart P, Zhang Y, Patrick M, Zhang H, Wen X, Nair R, Elder J. 303 Allele specific accessibility analysis to decipher molecular mechanism of psoriasis-associated loci. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.309] [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: 11/26/2022]
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Qin J, Xu M, Zhang Q, Wen X, He S, Zhou Y, Liu H, Zhou W. A Nested Asymmetric PCR Melting Curve Assay for One-Step Genotyping of Nondeletional α-Thalassemia Mutations. J Mol Diagn 2020; 22:794-800. [PMID: 32482310 DOI: 10.1016/j.jmoldx.2020.03.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 02/17/2020] [Accepted: 03/04/2020] [Indexed: 01/25/2023] Open
Abstract
A rapid DNA-based assay is essential for clinical diagnosis and mass screening in thalassemia-prevention programs. Because of high homology and guanine-cytosine-rich and complex second structure of α-globin genes, it is rather difficult to develop a feasible and simple method for α-thalassemia genotyping. In this study, a strategy of nested asymmetric PCR melting curve analysis was designed to tackle these factors and ensure sensitivity and accuracy. Herein, a novel one-step assay for genotyping of nondeletional α-thalassemia mutations, including hemoglobin (Hb) Westmead (HBA2: c.369C>G), Hb Quong Sze (HBA2: c.377T>C), Hb Constant Spring (HBA2: c.427T>C), CD30 (HBA2: c.91-93delGAG), and CD31 (HBA2: c.95G>A) in a single closed tube, was established and evaluated. All five mutations were accurately determined with the concordance rate of 100% in a blind analysis of 255 genotype-known samples and 1250 clinical samples. In conclusion, this assay is useful for rapid and reliable genotyping of nondeletional α-thalassemia mutations in clinical practice. Especially, the strategy may have the potential to be a versatile scheme for rapid genotyping of other gene mutations because of its high throughput, sufficient stability, low cost, and simple operation.
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Affiliation(s)
- Jiachun Qin
- Department of Medical Genetics, School of Basic Medical Sciences, Southern Medical University, Guangzhou, People's Republic of China
| | - Mingli Xu
- Department of Medical Genetics, School of Basic Medical Sciences, Southern Medical University, Guangzhou, People's Republic of China
| | - Qiang Zhang
- Department of Medical Genetics, School of Basic Medical Sciences, Southern Medical University, Guangzhou, People's Republic of China; Department of Genetic Metabolism, Prenatal Diagnostic Center, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, People's Republic of China
| | - Xiaojun Wen
- Department of Medical Genetics, School of Basic Medical Sciences, Southern Medical University, Guangzhou, People's Republic of China; Center for Reproductive Medicine, the Affiliated Zhongshan Boai Hospital of Southern Medical University, Zhongshan, People's Republic of China
| | - Sheng He
- Department of Genetic Metabolism, Prenatal Diagnostic Center, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, People's Republic of China
| | - Yong Zhou
- Department of Laboratory Medicine, Fifth People's Hospital of Dongguan, Dongguan, People's Republic of China
| | - Haiping Liu
- Neonatal Screening Center, Maternal and Child Health Hospital of Fushan, Fushan, People's Republic of China
| | - Wanjun Zhou
- Department of Medical Genetics, School of Basic Medical Sciences, Southern Medical University, Guangzhou, People's Republic of China.
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Tavares A, Wen X, Maciel J, Carneiro F, Dinis-Ribeiro M. Occult Tumour Cells in Lymph Nodes from Gastric Cancer Patients: Should Isolated Tumour Cells Also Be Considered? Ann Surg Oncol 2020; 27:4204-4215. [PMID: 32367500 DOI: 10.1245/s10434-020-08524-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Regional lymph node metastasis is an important prognostic factor for patients with gastric cancer. Occult tumour cells (OTCs), including either micrometastases (MMs) or isolated tumour cells (ITCs), may be a key factor in the development of cancer recurrence in pN0 patients. AIMS We aimed to determine the frequency and prognostic significance for disease recurrence of OTCs. MATERIALS AND METHODS This retrospective cohort study included all consecutive patients with pN0 gastric adenocarcinoma between January 2000 and December 2011 (n = 73). Immunohistochemistry using the pan-cytokeratin antibody AE1/AE3 was used to detect OTCs in 1257 isolated lymph nodes. RESULTS OTCs were identified in 30 patients (41%), including 20 cases with MMs (27%) and 10 cases with ITCs (14%). Disease recurrence and cancer-related death were observed in 24 (33%) and 20 patients (27%), respectively, and both were significantly associated with the detection of OTCs. A significant difference was also observed for the mean survival time between patients with OTCs and those without OTCs [100 vs 158 months (p = 0.015)]. The presence of OTCs was statistically significantly associated with the Lauren classification, tumour size and lymphatic permeation. Multivariate analyses revealed that only age, T stage and the presence of ITCs in lymph nodes were independent factors for recurrence. The presence of ITCs increased the risk for recurrence by 11.1-fold. CONCLUSIONS In a significant proportion of patients diagnosed as stage pN0, OTCs may be identified in lymph nodes if carefully searched for, which can negatively affect their prognosis. The presence of ITCs was found to be an independent factor for recurrence and after proper validation should be considered during lymph node assessment for prognosis definition.
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Affiliation(s)
- A Tavares
- Department of General Surgery, Centro Hospitalar de Vila Nova de Gaia/Espinho, Porto, Portugal. .,Faculty of Medicine, University of Porto, Porto, Portugal.
| | - X Wen
- Institute of Molecular Pathology and Immunology, University of Porto (Ipatimup), Porto, Portugal.,Institute for Research Innovation in Health (i3S), University of Porto, Porto, Portugal.,Department of Pathology, Centro Hospitalar Vila Nova de Gaia/Espinho, Porto, Portugal
| | - J Maciel
- Department of General Surgery, Centro Hospitalar de Vila Nova de Gaia/Espinho, Porto, Portugal.,Faculty of Health Sciences, Universidade Fernando Pessoa, Porto, Portugal
| | - F Carneiro
- Institute of Molecular Pathology and Immunology, University of Porto (Ipatimup), Porto, Portugal.,Institute for Research Innovation in Health (i3S), University of Porto, Porto, Portugal.,Department of Pathology, Centro Hospitalar Universitário São João (CHUSJ), Porto, Portugal.,Department of Pathology, Faculty of Medicine, University of Porto (FMUP), Porto, Portugal
| | - M Dinis-Ribeiro
- Department of Gastroenterology, Oncology Portuguese Institute of Porto, Porto, Portugal.,MEDCIDS/CINTESIS Faculty of Medicine, University of Porto, Porto, Portugal
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