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Wang H, Ding P, Xia GJ, Zhao X, E W, Yu M, Ma Z, Wang YG, Wang LS, Li J, Yang X. Formation of Supernarrow Borophene Nanoribbons. Angew Chem Int Ed Engl 2024:e202406535. [PMID: 38652809 DOI: 10.1002/anie.202406535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2024] [Revised: 04/19/2024] [Accepted: 04/22/2024] [Indexed: 04/25/2024]
Abstract
Borophenes have sparked considerable interest owing to their fascinating physical characteristics and diverse polymorphism. However, borophene nanoribbons (BNRs) with widths less than 2 nm have not been achieved. Herein, we report the experimental realization of supernarrow BNRs. Combining scanning tunneling microscopy imaging with density functional theory modeling and ab initio molecular dynamics simulations, we demonstrate that, under the applied growth conditions, boron atoms can penetrate the outermost layer of Au(111) and form BNRs composed of a pair of zigzag (2,2) boron rows. The BNRs have a width self-contained to ∼1 nm and dipoles at the edges to keep them separated. They are embedded in the outermost Au layer and shielded on top by the evacuated Au atoms, free of the need for post-passivation. Scanning tunneling spectroscopy reveals distinct edge states, primarily attributed to the localized spin at the BNRs' zigzag edges. This work adds a new member to the boron material family and introduces a new physical feature to borophenes.
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Affiliation(s)
- Haochen Wang
- Dalian Institute of Chemical Physics, State Key Laboratory of Molecular Reaction Dynamics, CHINA
| | - Pengcheng Ding
- Harbin Institute of Technology, School of Chemistry and Chemical Engineering, CHINA
| | - Guang-Jie Xia
- Southern University of Science and Technology, Department of Chemistry and Guangdong Provincial Key Laboratory of Catalytic Chemistry, CHINA
| | - Xiangyun Zhao
- Dalian Institute of Chemical Physics, State Key Laboratory of Molecular Reaction Dynamics, CHINA
| | - Wenlong E
- Dalian Institute of Chemical Physics, State Key Laboratory of Molecular Reaction Dynamics, CHINA
| | - Miao Yu
- Harbin Institute of Technology, School of Chemical Engineering and Technology, 92 Xidazhi St., 150001, Harbin, CHINA
| | - Zhibo Ma
- Dalian Institute of Chemical Physics, State Key Laboratory of Molecular Reaction Dynamics, CHINA
| | - Yang-Gang Wang
- Southern University of Science and Technology, Department of Chemistry and Guangdong Provincial Key Laboratory of Catalytic Chemistry, CHINA
| | - Lai-Sheng Wang
- Brown University, Department of Chemistry, UNITED STATES
| | - Jun Li
- Tsinghua University, Department of Chemistry, CHINA
| | - Xueming Yang
- Dalian Institute of Chemical Physics, State Key Laboratory of Molecular Reaction Dynamics, CHINA
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Liu J, Ma Z, Jia W, Lan P. Targeting macrophage metabolism to enhance tumor immunotherapy. Cell Mol Immunol 2024:10.1038/s41423-024-01149-7. [PMID: 38632383 DOI: 10.1038/s41423-024-01149-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 03/01/2024] [Indexed: 04/19/2024] Open
Affiliation(s)
- Jing Liu
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
- Key Laboratory of Organ Transplantation, Ministry of Education, NHC Key Laboratory of Organ Transplantation, Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, People's Republic of China
| | - Zhibo Ma
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
- Key Laboratory of Organ Transplantation, Ministry of Education, NHC Key Laboratory of Organ Transplantation, Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, People's Republic of China
| | - Wenlong Jia
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Peixiang Lan
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China.
- Key Laboratory of Organ Transplantation, Ministry of Education, NHC Key Laboratory of Organ Transplantation, Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, People's Republic of China.
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Jian H, Feng H, Zhu L, Li X, Ma Z. MicroRNA-150-5P regulates Th1/Th2 cytokines expression levels by targeting EGR2 in allergic rhinitis. Rhinology 2024; 62:250-256. [PMID: 38165680 DOI: 10.4193/rhin23.223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2024]
Abstract
BACKGROUND MiR-150-5p is one of the miRNAs in the expression profile of miRNAs, and in many previous studies, it has been shown that miR-150-5p may play an important role in peripheral blood dendritic cells (DCs) of allergic rhinitis (AR) patients. We sought to investigate the role and mechanism of miR-150-5p in regulating DC function by modulating EGR2 and influencing T cell derivation to promote AR development. METHODS The expression of miR-150-5p and EGR2 in AR patients was examined by real-time quantitative polymerase chain reaction (qRT-PCR), the expression of IL-4 cytokines in the supernatant of AR patients was tested by enzyme-linked immunosorbent assay (ELISA), and the expression of eosinophils in the supernatant of AR patients was measured by HE staining. The expression of EGR2 was detected by immunohistochemistry and fluorescent m-immunohistochemistry. RESULTS MiR-150-5p expression was up-regulated and EGR2 expression was down-regulated in peripheral blood DCs from AR patients. miR-150-5p upregulated DCs, which promoted T-cell differentiation. miR-150-5p further regulated EGR2, which suppressed DCs and caused alteration of T-cell differentiation, in turn triggering the occurrence of AR. CONCLUSION MiR-150-5p and its target gene EGR2 are involved in the development of AR, and DCs foster T-cell differentiation in peripheral blood of AR patients.
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Affiliation(s)
- H Jian
- Department of Otorhinolaryngology, the Third Affiliated Hospital of ZunYi Medical University/First People’s Hospital of Zunyi 563002, China
| | - H Feng
- Department of Otorhinolaryngology, the Third Affiliated Hospital of ZunYi Medical University/First People’s Hospital of Zunyi 563002, China
| | - L Zhu
- Department of Otorhinolaryngology, the Third Affiliated Hospital of ZunYi Medical University/First People’s Hospital of Zunyi 563002, China
| | - X Li
- Department of Otorhinolaryngology, the Third Affiliated Hospital of ZunYi Medical University/First People’s Hospital of Zunyi 563002, China
| | - Z Ma
- Department of Otorhinolaryngology, the Third Affiliated Hospital of ZunYi Medical University/First People’s Hospital of Zunyi 563002, China
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Zhang W, Zhang Y, Ouyang WW, Fa Su S, Ma Z, Li QS, Gang Yang W, Xia Chen X, Liu J, Lu B. Quality control of postoperative radiotherapy for non-small cell lung cancer: A study of mediastinal shift. Cancer Radiother 2024; 28:152-158. [PMID: 38320903 DOI: 10.1016/j.canrad.2023.06.032] [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: 11/26/2022] [Revised: 06/03/2023] [Accepted: 06/06/2023] [Indexed: 02/08/2024]
Abstract
PURPOSE This study aimed to assess the shifting patterns of the mediastinum, including the target volume and the isocenter point during the postoperative radiotherapy (PORT) process of non-small cell lung cancer (NSCLC), and to observe the occurrence of radiation injury. Additionally, we investigated the significance of mid-term assessment during the implementation of the PORT process. MATERIAL AND METHODS We established coordinate axes based on bone anatomy and measured the mediastinum's three-dimensional direction and the shift of the isocenter point's shift in the PORT process. Statistical analysis was performed using Wilcoxon, Kruskal-Wallis, and the Chi-square test. P<0.05 was considered statistically significant. RESULTS In this study, the analysis of patients revealed that the shift of anterior and posterior mediastinum (X), left and right mediastinum (Y), upper and lower mediastinum (Z), anterior and posterior isocenter point (Xi), and the left and right isocenter points (Yi) in the PORT process were 0.04-0.53, 0.00-0.84, 0.00-1.27, 0.01-0.86, and 0.00-0.66cm, respectively. The shift distance of the mediastinum was Z>Y>X, and the shift distance of the isocenter point was Xi>Yi. According to the ROC curve, the cut-off values were 0.263, 0.352, 0.405, 0.238, and 0.258, respectively, which were more significant than the cut-off values in 25 cases (25%), 30 cases (30%), 30 cases (30%), 17 cases (17%), and 15 cases (15%). In addition, there was a significant difference in the shift of the mediastinum and the isocenter point (all P=0.00). Kruskal-Wallis test showed no statistically significant difference between mediastinal shift and resection site in X, Y, and Z directions (P=0.355, P=0.239, P=0.256), surgical method (P=0.241, P=0.110, P=0.064). There was no significant difference in the incidence of RE and RP in PORT patients (P>0.05). No III-IV RP occurred. However, the incidence of ≥ grade III RE in the modified plan cases after M-S was significantly lower than in the original PORT patients, 0% and 7%, respectively (P=0.000). CONCLUSION In conclusion, this study provides evidence that mediastinal shift is a potential complication during the PORT process for patients with N2 stage or R1-2 resection following radical resection of NSCLC. This shift affects about 20-30% of patients, manifesting as actual radiation damage to normal tissue and reducing the local control rate. Therefore, mid-term repositioning of the PORT and revision of the target volume and radiation therapy plan can aid in maintaining QA and QC during the treatment of NSCLC patients and may result in improved patient outcomes.
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Affiliation(s)
- W Zhang
- Department of Oncology, Affiliated Hospital of Guizhou Medical University/Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, China; Department of Oncology, Guizhou Medical University, Guiyang, China
| | - Y Zhang
- Department of Oncology, Affiliated Hospital of Guizhou Medical University/Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, China; Department of Oncology, Guizhou Medical University, Guiyang, China
| | - W-W Ouyang
- Department of Oncology, Affiliated Hospital of Guizhou Medical University/Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, China; Department of Oncology, Guizhou Medical University, Guiyang, China
| | - S Fa Su
- Department of Oncology, Affiliated Hospital of Guizhou Medical University/Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, China; Department of Oncology, Guizhou Medical University, Guiyang, China
| | - Z Ma
- Department of Oncology, Affiliated Hospital of Guizhou Medical University/Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, China
| | - Q-S Li
- Department of Oncology, Affiliated Hospital of Guizhou Medical University/Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, China; Department of Oncology, Guizhou Medical University, Guiyang, China
| | - W Gang Yang
- Department of Oncology, Affiliated Hospital of Guizhou Medical University/Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, China; Department of Oncology, Guizhou Medical University, Guiyang, China
| | - X Xia Chen
- Department of Oncology, Affiliated Hospital of Guizhou Medical University/Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, China; Department of Oncology, Guizhou Medical University, Guiyang, China
| | - J Liu
- Department of Oncology, Affiliated Hospital of Guizhou Medical University/Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, China; Department of Oncology, Guizhou Medical University, Guiyang, China
| | - B Lu
- Department of Oncology, Affiliated Hospital of Guizhou Medical University/Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, China; Department of Oncology, Guizhou Medical University, Guiyang, China.
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Sun L, Ma Z, Zhao X, Tan X, Tu Y, Wang J, Chen L, Chen Z, Chen G, Lan P. LRP11 promotes stem-like T cells via MAPK13-mediated TCF1 phosphorylation, enhancing anti-PD1 immunotherapy. J Immunother Cancer 2024; 12:e008367. [PMID: 38272565 PMCID: PMC10824019 DOI: 10.1136/jitc-2023-008367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/29/2023] [Indexed: 01/27/2024] Open
Abstract
BACKGROUND Tumor-infiltrating T cells enter an exhausted or dysfunctional state, which limits antitumor immunity. Among exhausted T cells, a subset of cells with features of progenitor or stem-like cells has been identified as TCF1+ CD8+ T cells that respond to immunotherapy. In contrast to the finding that TCF1 controls epigenetic and transcriptional reprogramming in tumor-infiltrating stem-like T cells, little is known about the regulation of TCF1. Emerging data show that elevated body mass index is associated with outcomes of immunotherapy. However, the mechanism has not been clarified. METHODS We investigated the proliferation of splenic lymphocytes or CD8+ T cells induced by CD3/CD28 stimulation in vitro. We evaluated the effects of low-density lipoprotein (LDL) and LRP11 inhibitors, as well as MAPK13 inhibitors. Additionally, we used shRNA technology to validate the roles of LRP11 and MAPK13. In an in vivo setting, we employed male C57BL/6J injected with B16 cells or MC38 cells to build a tumor model to assess the effects of LDL and LRP11 inhibitors, LRP11 activators, MAPK13 inhibitors on tumor growth. Flow cytometry was used to measure cell proportions and activation status. Molecular interactions and TCF1 status were examined using Western blotting. Moreover, we employed RNA sequencing to investigate the effects of LDL stimulation and MAPK13 inhibition in CD8+ T cells. RESULTS By using a tumor-bearing mouse model, we found that LDL-induced tumor-infiltrating TCF1+PD1+CD8+ T cells. Using a cell-based chimeric receptor screening system, we showed that LRP11 interacted with LDL and activated TCF1. LRP11 activation enhanced TCF1+PD1+CD8+ T-cell-mediated antitumor immunity, consistent with LRP11 blocking impaired T-cell function. Mechanistically, LRP11 activation induces MAPK13 activation. Then, MAPK13 phosphorylates TCF1, leading to increase of stem-like T cells. CONCLUSIONS LRP11-MAPK13-TCF1 enhanced antitumor immunity and induced tumor-infiltrating stem-like T cells.
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Affiliation(s)
- Lingjuan Sun
- Institute of Organ Transplantation,Tongji Hospital, Tongji Medical College; Key Laboratory of Organ Transplantation; Ministry of Education, NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Science, Huazhong University of Science and Technology, Wuhan, China
| | - Zhibo Ma
- Institute of Organ Transplantation,Tongji Hospital, Tongji Medical College; Key Laboratory of Organ Transplantation; Ministry of Education, NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Science, Huazhong University of Science and Technology, Wuhan, China
| | - Xiangli Zhao
- Institute of Organ Transplantation,Tongji Hospital, Tongji Medical College; Key Laboratory of Organ Transplantation; Ministry of Education, NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Science, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaosheng Tan
- Institute of Organ Transplantation,Tongji Hospital, Tongji Medical College; Key Laboratory of Organ Transplantation; Ministry of Education, NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Science, Huazhong University of Science and Technology, Wuhan, China
| | - Yuhao Tu
- Institute of Organ Transplantation,Tongji Hospital, Tongji Medical College; Key Laboratory of Organ Transplantation; Ministry of Education, NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Science, Huazhong University of Science and Technology, Wuhan, China
| | - Jingzeng Wang
- Institute of Organ Transplantation,Tongji Hospital, Tongji Medical College; Key Laboratory of Organ Transplantation; Ministry of Education, NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Science, Huazhong University of Science and Technology, Wuhan, China
| | - Li Chen
- Institute of Organ Transplantation,Tongji Hospital, Tongji Medical College; Key Laboratory of Organ Transplantation; Ministry of Education, NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Science, Huazhong University of Science and Technology, Wuhan, China
| | - Zhishui Chen
- Institute of Organ Transplantation,Tongji Hospital, Tongji Medical College; Key Laboratory of Organ Transplantation; Ministry of Education, NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Science, Huazhong University of Science and Technology, Wuhan, China
| | - Gang Chen
- Institute of Organ Transplantation,Tongji Hospital, Tongji Medical College; Key Laboratory of Organ Transplantation; Ministry of Education, NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Science, Huazhong University of Science and Technology, Wuhan, China
| | - Peixiang Lan
- Institute of Organ Transplantation,Tongji Hospital, Tongji Medical College; Key Laboratory of Organ Transplantation; Ministry of Education, NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Science, Huazhong University of Science and Technology, Wuhan, China
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Zhu X, Ma Z, Xie F, Wang J. ASH2L, Core Subunit of H3K4 Methylation Complex, Regulates Amelogenesis. J Dent Res 2024; 103:81-90. [PMID: 37990471 DOI: 10.1177/00220345231207309] [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: 11/23/2023] Open
Abstract
Histone methylation assumes a crucial role in the intricate process of enamel development. Our study has illuminated the substantial prevalence of H3K4me3 distribution, spanning from the cap stage to the late bell stage of dental germs. In order to delve into the role of H3K4me3 modification in amelogenesis and unravel the underlying mechanisms, we performed a conditional knockout of Ash2l, a core subunit essential for the establishment of H3K4me3 within the dental epithelium of mice. The absence of Ash2l resulted in reduced H3K4me3 modification, subsequently leading to abnormal morphology of dental germ at the late bell stage. Notably, knockout of Ash2l resulted in a loss of polarity in ameloblasts and odontoblasts. The proliferation and apoptosis of the inner enamel epithelium cells underwent dysregulation. Moreover, there was a notable reduction in the expression of matrix-related genes, Amelx and Dspp, accompanied with impaired enamel and dentin formation. Cut&Tag-seq (cleavage under targets and tagmentation sequencing) analysis substantiated a reduction of H3K4me3 modification on Shh, Trp63, Sp6, and others in the dental epithelium of Ash2l knockout mice. Validation through real-time polymerase chain reaction, immunohistochemistry, and immunofluorescence consistently affirmed the observed downregulation of Shh and Sp6 in the dental epithelium following Ash2l knockout. Intriguingly, the expression of Trp63 isomers, DNp63 and TAp63, was perturbed in Ash2l defect dental epithelium. Furthermore, the downstream target of TAp63, P21, exhibited aberrant expression within the cervical loop of mandibular first molars and incisors. Collectively, our findings suggest that ASH2L orchestrates the regulation of crucial amelogenesis-associated genes, such as Shh, Trp63, and others, by modulating H3K4me3 modification. Loss of ASH2L and H3K4me3 can lead to aberrant differentiation, proliferation, and apoptosis of the dental epithelium by affecting the expression of Shh, Trp63, and others genes, thereby contributing to the defects of amelogenesis.
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Affiliation(s)
- X Zhu
- Department of Pediatric Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Diseases, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
| | - Z Ma
- Department of Pediatric Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Diseases, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
| | - F Xie
- Department of Pediatric Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Diseases, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
| | - J Wang
- Department of Pediatric Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Diseases, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
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Ma Z, Chang Y, Brito LF, Li Y, Yang T, Wang Y, Yang N. Multitrait meta-analyses identify potential candidate genes for growth-related traits in Holstein heifers. J Dairy Sci 2023; 106:9055-9070. [PMID: 37641329 DOI: 10.3168/jds.2023-23462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 06/20/2023] [Indexed: 08/31/2023]
Abstract
Understanding the underlying pleiotropic relationships among growth and body size traits is important for refining breeding strategies in dairy cattle for optimal body size and growth rate. Therefore, we performed single-trait GWAS for monthly-recorded body weight (BW), hip height, body length, and chest girth from birth to 12 mo of age in Holstein animals, followed by stepwise multiple regression of independent or lowly-linked markers from GWAS loci using conditional and joint association analyses (COJO). Subsequently, we conducted a multitrait meta-analysis to detect pleiotropic markers. Based on the single-trait GWAS, we identified 170 significant SNPs, in which 59 of them remained significant after the COJO analyses. The most significant SNP, located at BTA7:3,676,741, explained 2.93% of the total phenotypic variance for BW6 (BW at 6 mo of age). We identified 17 SNPs with potential pleiotropic effects based on the multitrait meta-analyses, which resulted in 3 additional SNPs in comparison to those detected based on the single-trait GWAS. The identified quantitative trait loci regions overlap with genes known to influence human growth-related traits. According to positional and functional analyses, we proposed HMGA2, HNF4G, MED13L, BHLHE40, FRZB, DMP1, TRIB3, and GATAD2A as important candidate genes influencing the studied traits. The combination of single-trait GWAS and meta-analyses of GWAS results improved the efficiency of detecting associated SNPs, and provided new insights into the genetic mechanisms of growth and development in Holstein cattle.
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Affiliation(s)
- Z Ma
- Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture of China, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, 100193, Beijing, China; Beijing Sunlon Livestock Development Co. Ltd., 100029, Beijing, China
| | - Y Chang
- Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture of China, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, 100193, Beijing, China
| | - Luiz F Brito
- Department of Animal Sciences, Purdue University, West Lafayette, IN 47907
| | - Y Li
- Beijing Sunlon Livestock Development Co. Ltd., 100029, Beijing, China
| | - T Yang
- Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture of China, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, 100193, Beijing, China
| | - Y Wang
- Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture of China, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, 100193, Beijing, China.
| | - N Yang
- Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture of China, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, 100193, Beijing, China.
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Chen L, Tan C, Li Q, Ma Z, Wu M, Tan X, Wu T, Liu J, Wang J. Assessment of the albumin-bilirubin score in breast cancer patients with liver metastasis after surgery. Heliyon 2023; 9:e21772. [PMID: 38027616 PMCID: PMC10643261 DOI: 10.1016/j.heliyon.2023.e21772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 10/25/2023] [Accepted: 10/27/2023] [Indexed: 12/01/2023] Open
Abstract
Objective This study aims to investigate the potential prognostic value of albumin-bilirubin (ALBI) score in breast cancer patients with liver metastasis after surgery. Methods This was a retrospective study of 178 breast cancer patients with liver metastasis after surgery. ALBI score was calculated by the following formula: (log10 bilirubin × 0.66) - (albumin × 0.085). The optimal cutoff value of ALBI score was assessed by X-tile. The clinical influence of ALBI score on survival outcomes using Kaplan-Meier method, Log-rank test, Cox proportional hazards regression model. The calibration curves, decision curve analysis and time-dependent ROC curve were used to assess the predictive performance of the nomogram's models. Results The classifications of 178 breast cancer patients with liver metastasis after surgery were as follows: low ALBI score group (<-3.36) vs. high ALBI score group (≥-3.36). The Cox proportional hazards regression model indicated that ALBI score was a potential predictor. Kaplan-Meier survival curve performed that the median disease free survival (p = 0.0029) and overall survival (p<0.0001) in low ALBI score group were longer than in high ALBI score group. The ALBI-based nomograms had good predictive performance. Conclusions The ALBI score has high prognostic ability for survival time in breast cancer with liver metastasis after surgery. These models will be valuable in discriminating patients at high risks of liver metastasis.
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Affiliation(s)
- Li Chen
- Department of Thyroid and Breast Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, PR China
- Department of Breast Surgical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, PR China
| | - Chunlei Tan
- Department of Breast Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, 150081, PR China
| | - Qingwen Li
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Key Laboratory of Organ Transplantation, Ministry of Education, NHC Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, Hubei 430030, PR China
| | - Zhibo Ma
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Key Laboratory of Organ Transplantation, Ministry of Education, NHC Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, Hubei 430030, PR China
| | - Meng Wu
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Key Laboratory of Organ Transplantation, Ministry of Education, NHC Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, Hubei 430030, PR China
| | - Xiaosheng Tan
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Key Laboratory of Organ Transplantation, Ministry of Education, NHC Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, Hubei 430030, PR China
| | - Tiangen Wu
- Department of Hepatobiliary&Pancreatic Surgery, Zhongnan Hospital of Wuhan University,Wuhan, Hubei, 430071, PR China
| | - Jinwen Liu
- Department of Thyroid and Breast Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, PR China
| | - Jing Wang
- Department of Breast Surgical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, PR China
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Duan ZJ, Feng J, Zhao HQ, Wang HD, Gui QP, Zhang XF, Ma Z, Hu ZJ, Xiang L, Qi XL. [Plurihormonal PIT1-lineage pituitary neuroendocrine tumors: a clinicopathological study]. Zhonghua Bing Li Xue Za Zhi 2023; 52:1017-1024. [PMID: 37805393 DOI: 10.3760/cma.j.cn112151-20230216-00137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 10/09/2023]
Abstract
Objective: To investigate the clinicopathological characteristics of plurihormonal PIT1-lineage pituitary neuroendocrine tumors. Methods: Forty-eight plurihormonal PIT1-lineage tumors were collected between January 2018 and April 2022 from the pathological database of Sanbo Brain Hospital, Capital Medical University. The related clinical and imaging data were retrieved. H&E, immunohistochemical and special stains were performed. Results: Out of the 48 plurihormonal PIT1-lineage tumors included, 13 cases were mature PIT1-lineage tumors and 35 cases were immature PIT1-lineage tumors. There were some obvious clinicopathological differences between the two groups. Clinically, the mature plurihormonal PIT1-lineage tumor mostly had endocrine symptoms due to increased hormone production, while a small number of immature PIT1-lineage tumors had endocrine symptoms accompanied by low-level increased serum pituitary hormone; patients with the immature PIT1-lineage tumors were younger than the mature PIT1-lineage tumors; the immature PIT1-lineage tumors were larger in size and more likely invasive in imaging. Histopathologically, the mature PIT1-lineage tumors were composed of large eosinophilic cells with high proportion of growth hormone expression, while the immature PIT1-lineage tumors consisted of chromophobe cells with a relatively higher expression of prolactin; the mature PIT1-lineage tumors had consistently diffuse cytoplasmic positive staining for keratin, while the immature PIT1-lineage tumors had various expression for keratin; the immature PIT1-lineage tumors showed more mitotic figures and higher Ki-67 proliferation index; in addition, 25.0% (12/48) of PIT1-positive plurihormonal tumors showed abnormal positive staining for gonadotropin hormones. There was no significant difference in the progression-free survival between the two groups (P=0.648) by Kaplan-Meier analysis. Conclusions: Plurihormonal PIT1-lineage tumor belongs to a rare type of PIT1-lineage pituitary neuroendocrine tumors, most of which are of immature lineage. Clinically increased symptoms owing to pituitary hormone secretion, histopathologically increased number of eosinophilic tumor cells with high proportion of growth hormone expression, diffusely cytoplasmic keratin staining and low proliferative activity can help differentiate the mature plurihormonal PIT1-lineage tumors from the immature PIT1-lineage tumors. The immature PIT1-lineage tumors have more complicated clinicopathological characteristics.
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Affiliation(s)
- Z J Duan
- Department of Pathology, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - J Feng
- Department of Pathology, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - H Q Zhao
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - H D Wang
- Department of Neurology, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - Q P Gui
- Department of Pathology, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - X F Zhang
- Department of Radiology, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - Z Ma
- Department of Pathology, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - Z J Hu
- Department of Pathology, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - L Xiang
- Department of Pathology, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - X L Qi
- Department of Pathology, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
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10
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Bao Y, Men Y, Yang X, Sun S, Yuan M, Ma Z, Liu Y, Wang J, Deng L, Wang W, Zhai Y, Bi N, Lv J, Liang J, Feng Q, Chen D, Xiao Z, Zhou Z, Wang L, Hui Z. Efficacy of Postoperative Radiotherapy for Patients with New N2 Descriptors of Subclassification in Completely Resected Non-Small Cell Lung Cancer: A Real-World Study. Int J Radiat Oncol Biol Phys 2023; 117:e5. [PMID: 37785570 DOI: 10.1016/j.ijrobp.2023.06.657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Patients with N2 non-small cell lung cancer (NSCLC) were heterogeneous groups and required further stratification. The International Society for the Study of Lung Cancer (IASLC) added new descriptors of three sub-stages for stage N2 NSCLC: N2 at a single station without N1 involvement (N2a1), N2 at a single station with N1 involvement (N2a2), and N2 at multiple stations (N2b). This study aimed to investigate the efficacy of postoperative radiotherapy (PORT) for patients with these N2 descriptors. MATERIALS/METHODS Patients with histologically confirmed NSCLC after complete resection and divided into PORT group and non-PORT group. The primary endpoint was DFS. The second endpoints were overall survival (OS) and locoregional recurrence-free survival (LRFS). Propensity-score matching (PSM) of baseline characteristics between the PORT and non-PORT groups was used for validation. RESULTS Totally 1832 patients were enrolled, including 308 N2a1 patients, 682 N2a2 patients, and 842 N2b patients. The median follow-up time was 50.1 months. The survival outcomes of the PORT and non-PORT groups before PSM were shown in Table 1. For patients with N2a1, PORT could not improve the DFS (median DFS of the PORT group and the non-PORT group: not reached vs. 46.8 months, P = 0.41), OS (P = 0.85), or LRFS (P = 0.32), which were consistent with the multivariate analysis and data after the PSM. For patients with N2a2, PORT significantly improved the DFS (median DFS 29.7 vs. 22.2 months, P = 0.02), OS (P = 0.03), and LRFS (P = 0.01). The multivariate analysis and data after the PSM confirmed the benefits in DFS and LRFS, but no benefit was observed in OS (multivariate analysis: HR 0.79, P = 0.18; median OS after PSM: 103.7 vs. 63.1 months, P = 0.34). For patients with N2b, PORT could not improve the DFS (median DFS 20.6 vs. 21.2 months, P = 0.39) but significantly improved the OS (P<0.001) and LRFS (P<0.001). However, the multivariate analysis showed that PORT significantly improved DFS (HR 0.81, P = 0.03), consistent with the data after the PSM (median DFS 20.6 and 17.6 months, P = 0.04). CONCLUSION PORT significantly improved the DFS and LRFS in patients with N2a2 and significantly improved the DFS, LRFS, and OS in patients with N2b. Patients with N2a1 could not benefit from PORT.
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Affiliation(s)
- Y Bao
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Men
- Department of VIP Medical Services & Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - X Yang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - S Sun
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - M Yuan
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Z Ma
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Liu
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J Wang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing, China
| | - L Deng
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing, China
| | - W Wang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Zhai
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - N Bi
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J Lv
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J Liang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Q Feng
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - D Chen
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Z Xiao
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Z Zhou
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing, China
| | - L Wang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China, Shenzhen, China
| | - Z Hui
- Department of VIP Medical Services & Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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11
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Yu J, Jiang L, Zhao L, Wang X, Yang X, Yang D, Zhuo M, Chen H, Zhao YD, Zhou F, Li Q, Zhu Z, Chu L, Ma Z, Wang Q, Qu Y, Huang W, Zhang M, Gu T, Liu S, Yang Y, Yang J, Yu H, Yu R, Zhao J, Shi A. High Dose Hyperfractionated Thoracic Radiotherapy vs. Standard Dose for Limited Stage Small-Cell Lung Cancer: A Multicenter, Open-Label Randomized, Phase 3 Trial. Int J Radiat Oncol Biol Phys 2023; 117:S1. [PMID: 37784261 DOI: 10.1016/j.ijrobp.2023.06.205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Limited stage small-cell lung cancer (LS-SCLC) is associated with poor prognosis. We aimed to assess the efficacy and safety of high-dose, hyperfractionated thoracic radiotherapy of 54 Gy in 30 fractions compared with standard dose (45 Gy in 30 fractions) as a first-line treatment for LS-SCLC. MATERIALS/METHODS The study was an open-label, randomized, phase 3 trial, done at 16 public hospitals in China. Key inclusion criteria were patients aged 18-70 years, with previously histologically or cytologically confirmed LS-SCLC, previously untreated or received 1-2 courses of intravenous cisplatin (75 mg/m²of body-surface area, on day 1 or divided into two days of each cycle) or carboplatin (area under the curve of 5 mg/mL per min, day 1 of each cycle)and intravenous etoposide (100 mg/m²of body-surface area, on days 1-3 of each cycle), and an Eastern Cooperative Oncology Group (ECOG) performance status of 0-1.Eligible patients were randomly assigned (1:1) to receive volumetric-modulated arc radiotherapy (VMAT) of 45 Gy in 30 fractions or the simultaneous integrated boost VMAT (SIB-VMAT) of 54 Gy in 30 fractions to the primary lung tumor and lymph node metastases starting 0-42 days after the first chemotherapy course. Both groups of patients received thoracic radiotherapy twice per day and 10 fractions per week. Prophylactic cranial radiation (PCI, 25 Gy in 10 fractions) was implemented to patients with responsive disease. The primary endpoint was overall survival. Safety was analyzed in the as-treated population. RESULTS Between June 30, 2017, and April 6, 2021, 224 eligible patients were enrolled and randomly assigned to 54 Gy (n = 108) or 45 Gy (n = 116). Median follow-up for the primary analysis was 45 months (IQR 41-48). Median overall survival was significantly improved in the 54 Gy group (62.4 months) compared with the 45 Gy group (43.1 months; p = 0.001). Median progression-free survival was significantly improved in the 54 Gy group (30.5 months) compared with the 45 Gy group (16.7 months; p = 0.044). The most common grade 3-4 adverse events were neutropenia (30 [28%] of 108 patients in the 54 Gy group vs 27 [23%] of 116 patients in the 45 Gy group), neutropenic infections (6 [6%] vs 2 [2%]), thrombocytopenia (13 [12%] vs 12 [10%]), anemia (6 [6%] vs 4 [3%]), and esophagitis (1 [1%] vs 3 [3%]). Treatment-related serious adverse events occurred in 9 [8%] patients in the 54 Gy group and 16 [14%] patients in the 45 Gy group. There were one treatment-related deaths in 54 Gy group (myocardial infarction). CONCLUSION Compared with standard thoracic radiotherapy dose of 45 Gy, the high dose of 54 Gy improved overall survival and progression-free survival without increasing toxicities in patients with LS-SCLC, supporting twice-daily hyperfractionated thoracic radiotherapy of 54 Gy with concurrent chemotherapy is an alternative treatment option for LS-SCLC. This study is complete and registered with ClinicalTrials.gov, NCT03214003.
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Affiliation(s)
- J Yu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Radiation Oncology, Peking University Cancer Hospital & Institute, Beijing, China
| | - L Jiang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Radiation Oncology, Peking University Cancer Hospital & Institute, Beijing, China
| | - L Zhao
- Department of Radiation Oncology, Xijing Hospital, Fourth Military Medical University. ty, Xi'an, China
| | - X Wang
- Department of Radiation Oncology, Anyang Cancer Hospital, Anyang, China
| | - X Yang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Thoracic Medical Oncology, Peking University Cancer Hospital and Institute, Beijing, China., Beijing, China
| | - D Yang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Radiation Oncology, Peking University Cancer Hospital & Institute, Beijing, China
| | - M Zhuo
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Thoracic Medical Oncology, Peking University Cancer Hospital and Institute, Beijing, China., Beijing, China
| | - H Chen
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Thoracic Medical Oncology, Peking University Cancer Hospital and Institute, Beijing, China., Beijing, China
| | - Y D Zhao
- Department of Radiation Oncology, Anyang Tumor Hospital, Anyang, China
| | - F Zhou
- Yantai Yuhuangding Hospital, Yantai, China
| | - Q Li
- Ordos School of Clinical Medicine I.M.M.U, Ordos, China
| | - Z Zhu
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - L Chu
- Fudan University Shanghai Cancer Center, Shanghai, China
| | - Z Ma
- Chifeng Affiliated Hospital, Chifeng, China
| | - Q Wang
- Department of Radiation Oncology, Sichuan Cancer Hospital and Institution, Chengdu, China
| | - Y Qu
- Liaoning cancer hospital & institute, Shenyang, China
| | - W Huang
- Shandong Cancer Hospital & Institute, Jinan, Shandong, China
| | - M Zhang
- Department of Radiation Oncology, Peking University People's Hospital, Beijing, China; Department of Radiation Oncology, Peking University First Hospital, Peking University, Beijing, China
| | - T Gu
- The First Hospital of Qinhuangdao, Qinhuangdao, China
| | - S Liu
- Jilin Provincial Cancer Hospital, Changchun, China
| | - Y Yang
- Jilin Provincial Cancer Hospital, Changchun, China
| | - J Yang
- Department of Oncology, The first Affiliated Hospital of Xinxiang Medical University, Weihui, China
| | - H Yu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Radiation Oncology, Peking University Cancer Hospital & Institute, Beijing, China
| | - R Yu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Radiation Oncology, Peking University Cancer Hospital & Institute, Beijing, China
| | - J Zhao
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Thoracic Medical Oncology, Peking University Cancer Hospital and Institute, Beijing, China., Beijing, China
| | - A Shi
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Radiation Oncology, Peking University Cancer Hospital & Institute, Beijing, China
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12
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Ma Z, Yongxing B, Yuan M, Men Y, Zhai YR, Deng L, Wang J, Bi N, Wang L, Hui Z. The Impact of a High Radiation Dose to the Immune Cells on Tumor Control and Survival in Patients with Non-Small Cell Lung Cancer Undergoing Postoperative Radiotherapy. Int J Radiat Oncol Biol Phys 2023; 117:e40. [PMID: 37785337 DOI: 10.1016/j.ijrobp.2023.06.736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Previous studies showed that the estimated dose of radiation to immune cells (EDRIC) was correlated with the overall survival (OS) of patients who received definitive thoracic radiotherapy. However, planning target volume (PTV) may be a confounding factor. The PTV is relatively uniform for patients undergoing postoperative radiotherapy (PORT). We further assessed the prognostic value of EDRIC on survival in patients with non-small cell lung cancer (NSCLC) undergoing PORT. MATERIALS/METHODS Patients with NSCLC who received PORT between 2004 and 2019 were analyzed. EDRIC was calculated as a function of the number of radiation fractions and mean doses to the lung, heart, and remaining body based on a model developed by Jin et al. The correlation between EDRIC and OS, PFS, local progression-free survival (LPFS), and distant metastasis-free survival (DMFS) were analyzed using univariable and multivariable Cox models. Kaplan-Meier method was used to show the survival difference between patients with high and low EDRIC. RESULTS A total of 345 patients were eligible. The mean EDRIC was 7.6 Gy. Multivariate analysis showed that EDRIC was associated with OS (HR 1.14, P = 0.002), PFS (HR 1.08, P = 0.016), LRFS (HR 1.111, P = 0.008), and DMFS (HR 1.10, P = 0.018). Patients were divided into low and high EDRIC groups according to median EDRIC. The 3-year OS was 82.7% and 72.2% (p = 0.03). The 3-year PFS was 40.3% and 17.8% (p < 0.01). The 3-year LRFS was 71.39% and 59.18% (p = 0.05). The 3-year DMFS was 74.4% and 63.4% (p = 0.06). CONCLUSION EDRIC was an independent prognostic factor for survival. Higher doses of radiation to the immune system were associated with tumor progression and death after the PORT of NSCLC. The organ at risk for the immune system should be considered during radiotherapy planning.
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Affiliation(s)
- Z Ma
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - B Yongxing
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - M Yuan
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Men
- Department of VIP Medical Services & Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y R Zhai
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - L Deng
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J Wang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing, China
| | - N Bi
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - L Wang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China, Shenzhen, China
| | - Z Hui
- Department of VIP Medical Services & Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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13
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Liu Y, Wang Y, Ma Z, Bao Y, Zhang W, Zhang H, Deng H, Men Y, Zhai Y, Wang X, Liu W, Bi N, Ye F, Men K, Qin J, Xue L, Wang Q, Hui Z. A Machine Learning Method to Predict Pathological Complete Response of Esophageal Cancer after Neoadjuvant Chemoradiotherapy with Clinicohematological Markers and MR Radiomics: A Multi-Center Study. Int J Radiat Oncol Biol Phys 2023; 117:e318. [PMID: 37785139 DOI: 10.1016/j.ijrobp.2023.06.2355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Nearly 30% of patients with local advanced esophageal cancer achieved pathological complete response (pCR) after neoadjuvant chemoradiotherapy (nCRT), who may benefit from organ-preservation strategy under accurate prediction of pCR. We aimed to develop and validate machine learning models based on clinicohematological markers and MR radiomics to accurately predict pCR of esophageal cancer after nCRT. MATERIALS/METHODS In this multi-center study, eligible patients with esophageal cancer who received baseline MR scan (T2-weighted image) and nCRT plus surgery were enrolled between September 2014 and September 2022 at institution 1 (training set) and between December 2017 and August 2021 at institution 2 (testing set). Pre-nCRT and post-nCRT blood test results were collected to calculate hematological markers. Models were constructed by machine learning based on clinicohematological markers and MR radiomics to predict pCR. Area under the curve (AUC) and cut-off analysis were used to evaluate model performances. RESULTS Totally 154 patients (81 in the training set and 73 in the testing set) were enrolled. The combined model integrating pre-nCRT monocyte-to-lymphocyte ratio and 6 radiomics features achieved AUC of 0.800 (95% CI 0.671-0.918) in the testing set, with sensitivity of 79.2% (95% CI 62.5%-95.8%), specificity of 83.7% (95% CI 73.5%-93.9%), positive predictive value of 76.0% (95% CI 62.5%-90.0%), and negative predictive value of 89.6% (95% CI 82.0%-95.8%). CONCLUSION A machine learning model based on clinicohematological markers and MR radiomics to predict pCR after nCRT for patients with esophageal cancer was developed and validated, providing a novel tool for personalized treatment. It is necessary to further validate in more large datasets.
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Affiliation(s)
- Y Liu
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Wang
- Department of Radiation Oncology, Sichuan Cancer Hospital and Institution, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Radiation Oncology Key Laboratory of Sichuan Province, Chengdu, China
| | - Z Ma
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Bao
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - W Zhang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - H Zhang
- Department of Radiation Oncology, Sichuan Cancer Hospital and Institution, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Radiation Oncology Key Laboratory of Sichuan Province, Chengdu, China
| | - H Deng
- Department of Diagnostic Radiology, Sichuan Cancer Hospital & Institution, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Y Men
- Department of VIP Medical Services & Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Zhai
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - X Wang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - W Liu
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - N Bi
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - F Ye
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - K Men
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J Qin
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - L Xue
- Department of Pathology and Resident Training Base, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Q Wang
- Department of Radiation Oncology, Sichuan Cancer Hospital and Institution, Chengdu, China
| | - Z Hui
- Department of VIP Medical Services & Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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14
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Sun S, Yuan M, Bao Y, Liu Y, Ma Z, Men Y, Hui Z. Clinical Verification of a Nomogram Model for Prediction of Brain Metastases in Patients with pⅢA-N2 Non-Small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2023; 117:e61. [PMID: 37785834 DOI: 10.1016/j.ijrobp.2023.06.781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Brain metastasis is one of the most common failure patterns of pⅢA-N2 non-small cell lung cancer (NSCLC) after complete resection. Prophylactic Cranial Irradiation (PCI) can improve intracranial control but not overall survival. Thus, it is particularly important to identify risk factors that are associated with brain metastasis and subsequently provide instructions for selecting patients who will optimally benefit from PCI. We have reported a nomogram model which was established based on the condition of histology, bronchial invasion, perineural invasion, and adjuvant chemotherapy, through which we can predict high risk brain metastases in patients with pⅢA-N2 NSCLC. The purpose of this study is to verify the accuracy of the nomogram model by using new cases information. MATERIALS/METHODS Between January 1, 2015 and December 31, 2019, patients of pⅢA-N2 NSCLC were retrospectively analyzed, to verify the consistency between actual and predictive brain metastases. The verification group was divided into two groups according to the years when genetic testing has been widely used in clinic (group1:2015-2016, group2:2017-2019). ROC curves and calibration curves were chosen for validation. RESULTS A total of 770 patients were enrolled in our retrospective study (group1:294 patients, group2: 476patients). The 1-, 3- and 5-year survival rates were 97.2%, 76.5%, 63.2% in group1, and 95.8%, 84.5%, 76.9% in group2, respectively. The 1-, 3- and 5-year brain metastasis rates were 7.9%, 19.7%, 25.8%, and 5.4%, 14.5%, 26.3% in group2, respectively. The AUC were 0.74 (95% CI:0.72 - 0.76) in group1, and 0.71(95% CI:0.70 - 0.73) in group 2.The 1.3.5-year calibration curves of the two groups show that the prediction is in good agreement with the actual observation. CONCLUSION The nomogram model can predict brain metastases high risk patients with pⅢA-N2 NSCLC. Whether gene test or not, it can be used as a basis to screening out patients of high-risk brain metastases in future clinical trials for PCI.
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Affiliation(s)
- S Sun
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - M Yuan
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Bao
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Liu
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Z Ma
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Men
- Department of VIP Medical Services & Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Z Hui
- Department of VIP Medical Services & Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Yuan M, Bao Y, Ma Z, Hui Z. Overall Survival Following Salvage Thoracic Radiotherapy for Locoregional Recurrence in Patients with Completely Resected PIIIA-N2 NSCLC. Int J Radiat Oncol Biol Phys 2023; 117:e78-e79. [PMID: 37786178 DOI: 10.1016/j.ijrobp.2023.06.821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Locoregional recurrence is a common failure pattern for patients with completely resected pIIIA-N2 NSCLC. The salvage thoracic radiotherapy is administered in some pIIIA-N2 NSCLC patients despite postoperative radiotherapy (PORT). Salvage thoracic radiotherapy could be well tolerated and might improve survival from several small sample retrospective studies, while the high-level clinical evidence is presently lacking. We conducted this retrospective case control study to demonstrate the efficacy of salvage thoracic radiotherapy for completely resected pIIIA-N2 NSCLC patients with locoregional recurrence. MATERIALS/METHODS Between January 2003 and June 2019, patients who had undergone lobectomy or pneumonectomy plus mediastinal lymph node dissection or systematic sampling in our single institution were retrospectively reviewed. Those with pⅢA-N2 NSCLC that did not receive PORT and suffered locoregional recurrence being the first treatment failure were enrolled. The log-rank test was used to analyze differences between the groups, and the Kaplan-Meier method was used for survival analysis. Univariate and multivariate analyses using Cox proportional hazards regression models were performed to evaluate potential prognostic factors for survival. Statistically significant difference was set as p<0.05. RESULTS Of all the patients with pⅢA-N2 NSCLC reviewed, 105 suffered locoregional recurrence as the first treatment failure and didn't receive PORT. Among these patients, 51 (48.6%) received salvage thoracic radiotherapy and 54 (51.4%) did not. The median OS was 47.7 months of all patients. Survival analysis showed that the median OS in salvage thoracic radiotherapy group (69.0 months) was significantly longer than that in non-salvage thoracic radiotherapy group (37.7 months) (p = 0.029). For patients of EGFR wild type, salvage thoracic radiotherapy group had significantly longer median OS of 69.0 months compared with non-salvage thoracic radiotherapy group of 31.3 months (p = 0.004). When assessed by histological types, salvage thoracic radiotherapy significantly improved the survival of patients with lung squamous cell carcinoma with median OS not reached compared with non-salvage thoracic radiotherapy group of 31.3 months (p<0.001), while in patients with non-squamous cell carcinoma, this survival benefit was not observed (p = 0.829). CONCLUSION Salvage thoracic radiotherapy is an effective treatment for completely resected pIIIA-N2 NSCLC patients that have not received PORT and suffered post-operative locoregional recurrence.
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Affiliation(s)
- M Yuan
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Bao
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Z Ma
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Z Hui
- Department of VIP Medical Services & Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Zhang R, Chen Y, Fan D, Liu T, Ma Z, Dai Y, Wang Y, Zhu Z. Modelling enzyme inhibition toxicity of ionic liquid from molecular structure via convolutional neural network model. SAR QSAR Environ Res 2023; 34:789-803. [PMID: 37722394 DOI: 10.1080/1062936x.2023.2255517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Accepted: 08/30/2023] [Indexed: 09/20/2023]
Abstract
Deep learning (DL) methods further promote the development of quantitative structure-activity/property relationship (QSAR/QSPR) models by dealing with complex relationships between data. An acetylcholinesterase inhibitory toxicity model of ionic liquids (ILs) was established using a convolution neural network (CNN) combined with support vector machine (SVM), random forest (RF) and multilayer perceptron (MLP). A CNN model was proposed for feature self-learning and extraction of ILs. By comparing with the model results through feature engineering (FE), the model regression results based on the CNN model for feature extraction have been substantially improved. The results showed that all six models (FE-SVM, FE-RF, FE-MLP, CNN-SVM, CNN-RF, and CNN-MLP) had good prediction accuracy, but the results based on the CNN model were better. The hyperparameters of six models were optimized by grid search and the 10-fold cross validation. Compared with the existing models in the literature, the model performance has been further improved. The model could be used as an intelligent tool to guide the design or screening of low-toxicity ILs.
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Affiliation(s)
- R Zhang
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, People's Republic of China
| | - Y Chen
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, People's Republic of China
| | - D Fan
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, People's Republic of China
| | - T Liu
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, People's Republic of China
| | - Z Ma
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, People's Republic of China
| | - Y Dai
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, People's Republic of China
| | - Y Wang
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, People's Republic of China
| | - Z Zhu
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, People's Republic of China
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Zi G, Ma Z, Wang Y, Wang Y, Jia Z, Zhao S, Huang D, Wang T. Miniaturized Low-Frequency Communication System Based on the Magnetoelectric Effect. Micromachines (Basel) 2023; 14:1830. [PMID: 37893267 PMCID: PMC10609428 DOI: 10.3390/mi14101830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 08/31/2023] [Accepted: 09/06/2023] [Indexed: 10/29/2023]
Abstract
Recently, the realization of electromagnetic wave signal transmission and reception has been achieved through the utilization of the magnetoelectric effect, enabling the development of compact and portable low-frequency communication systems. In this paper, we present a miniaturized low-frequency communication system including a transmitter device and a receiver device, which operates at a frequency of 44.75 kHz, and the bandwidth is 1.1 kHz. The transmitter device employs a Terfenol-D (80 mm × 10 mm × 0.2 mm)/PZT (30 mm × 10 mm × 0.2 mm)/Terfenol-D glued composite heterojunction magnetoelectric antenna and the strongest radiation in the length direction, while the receiver device utilizes a manually crafted coil maximum size of 82 mm, yielding a minimum induced electromagnetic field of 1 pT at 44.75 kHz. With an input voltage of 150 V, the system effectively communicates over a distance of 16 m in air and achieves reception of electromagnetic wave signals within 1 m in simulated seawater with a salinity level of 35% at 25 °C. The miniaturized low-frequency communication system possesses wireless transmission capabilities, a compact size, and a rapid response, rendering it suitable for applications in mining communication, underwater communication, underwater wireless energy transmission, and underwater wireless sensor networks.
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Affiliation(s)
- Guohao Zi
- The Ministry of Education Key Lab of Micro/Nano Systems for Aerospace, Northwestern Polytechnical University, Ministry of Education, Xi’an 710072, China; (G.Z.); (Y.W.); (Y.W.); (Z.J.); (S.Z.); (D.H.)
- Shaan’xi Key Lab of MEMS/NEMS, Northwestern Polytechnical University, Xi’an 710072, China
| | - Zhibo Ma
- The Ministry of Education Key Lab of Micro/Nano Systems for Aerospace, Northwestern Polytechnical University, Ministry of Education, Xi’an 710072, China; (G.Z.); (Y.W.); (Y.W.); (Z.J.); (S.Z.); (D.H.)
- Shaan’xi Key Lab of MEMS/NEMS, Northwestern Polytechnical University, Xi’an 710072, China
| | - Yinan Wang
- The Ministry of Education Key Lab of Micro/Nano Systems for Aerospace, Northwestern Polytechnical University, Ministry of Education, Xi’an 710072, China; (G.Z.); (Y.W.); (Y.W.); (Z.J.); (S.Z.); (D.H.)
- Shaan’xi Key Lab of MEMS/NEMS, Northwestern Polytechnical University, Xi’an 710072, China
| | - Yuanhang Wang
- The Ministry of Education Key Lab of Micro/Nano Systems for Aerospace, Northwestern Polytechnical University, Ministry of Education, Xi’an 710072, China; (G.Z.); (Y.W.); (Y.W.); (Z.J.); (S.Z.); (D.H.)
- Shaan’xi Key Lab of MEMS/NEMS, Northwestern Polytechnical University, Xi’an 710072, China
| | - Ziqiang Jia
- The Ministry of Education Key Lab of Micro/Nano Systems for Aerospace, Northwestern Polytechnical University, Ministry of Education, Xi’an 710072, China; (G.Z.); (Y.W.); (Y.W.); (Z.J.); (S.Z.); (D.H.)
- Shaan’xi Key Lab of MEMS/NEMS, Northwestern Polytechnical University, Xi’an 710072, China
| | - Shanlin Zhao
- The Ministry of Education Key Lab of Micro/Nano Systems for Aerospace, Northwestern Polytechnical University, Ministry of Education, Xi’an 710072, China; (G.Z.); (Y.W.); (Y.W.); (Z.J.); (S.Z.); (D.H.)
- Shaan’xi Key Lab of MEMS/NEMS, Northwestern Polytechnical University, Xi’an 710072, China
| | - Dishu Huang
- The Ministry of Education Key Lab of Micro/Nano Systems for Aerospace, Northwestern Polytechnical University, Ministry of Education, Xi’an 710072, China; (G.Z.); (Y.W.); (Y.W.); (Z.J.); (S.Z.); (D.H.)
- Shaan’xi Key Lab of MEMS/NEMS, Northwestern Polytechnical University, Xi’an 710072, China
| | - Tao Wang
- Ningbo Research Institute, Northwestern Polytechnic University, Ningbo 315100, China
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Zhang Y, Zhao X, Cao Y, Chen M, Shi Z, Wu M, Feng H, Sun L, Ma Z, Tan X, Chen G, Qi C, Zhang Y. Bioactive Indole Alkaloid from Aspergillus amoenus TJ507 That Ameliorates Hepatic Ischemia/Reperfusion Injury. J Nat Prod 2023; 86:2059-2064. [PMID: 37560942 DOI: 10.1021/acs.jnatprod.3c00251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/11/2023]
Abstract
Hepatic ischemia/reperfusion injury (IRI) is a major factor contributing to the failure of hepatic resection and liver transplantation. As part of our ongoing investigation into bioactive compounds derived from fungi, we isolated eight indole alkaloids (1-8) from the endophytic fungus Aspergillus amoenus TJ507. Among these alkaloids, one previously undescribed compound, amoenamide D (1), was identified. The planar structure of 1 was elucidated by extensive spectroscopic analysis, including HRESIMS and NMR spectra. The absolute configuration of 1 was elucidated by using electronic circular dichroism calculations. Notably, in the CoCl2-induced hepatocyte damage model, notoamide Q (3) exhibited significant anti-hypoxia injury activity. Furthermore, in a murine hepatic ischemia/reperfusion injury model, treatment with 3 prevents IRI-induced liver damage and hepatocellular apoptosis. Consequently, 3 might serve as a potential lead compound to prevent hepatic ischemia/reperfusion injury.
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Affiliation(s)
- Yeting Zhang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xiangli Zhao
- Key Laboratory of Organ Transplantation, Ministry of Education; NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan 430030, China
| | - Yunfang Cao
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Ming Chen
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Zhengyi Shi
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Meng Wu
- Key Laboratory of Organ Transplantation, Ministry of Education; NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan 430030, China
| | - Hao Feng
- Key Laboratory of Organ Transplantation, Ministry of Education; NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan 430030, China
| | - Lingjuan Sun
- Key Laboratory of Organ Transplantation, Ministry of Education; NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan 430030, China
| | - Zhibo Ma
- Key Laboratory of Organ Transplantation, Ministry of Education; NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan 430030, China
| | - Xiaosheng Tan
- Key Laboratory of Organ Transplantation, Ministry of Education; NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan 430030, China
| | - Gang Chen
- Key Laboratory of Organ Transplantation, Ministry of Education; NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan 430030, China
| | - Changxing Qi
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Key Laboratory of Organ Transplantation, Ministry of Education; NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan 430030, China
| | - Yonghui Zhang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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Zhou F, Yang Y, Zhang L, Cheng Y, Han B, Lu Y, Wang C, Wang Z, Yang N, Fan Y, Wang L, Ma Z, Zhang L, Yao Y, Zhao J, Dong X, Zhu B, Zhou C. Expert consensus of management of adverse drug reactions with anaplastic lymphoma kinase tyrosine kinase inhibitors. ESMO Open 2023; 8:101560. [PMID: 37230029 DOI: 10.1016/j.esmoop.2023.101560] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 03/26/2023] [Accepted: 04/11/2023] [Indexed: 05/27/2023] Open
Abstract
Anaplastic lymphoma kinase (ALK) rearrangements occur in ∼3%-6% of patients with advanced non-small-cell lung cancer (NSCLC). Small molecular drugs that effectively inhibit ALK gene have revolutionized the therapeutic paradigm for patients with ALK rearrangements, resulting in significant improvements in objective response rate, progression-free survival, and overall survival compared with classical platinum-based chemotherapy. Several ALK tyrosine kinase inhibitors (ALK-TKIs), including crizotinib, alectinib, ceritinib, brigatinib, ensartinib, and lorlatinib, have been recommended as standard first-line treatment for advanced NSCLC patients with ALK rearrangements. Patients with ALK rearrangements typically exhibit long-term durable responses to ALK-TKIs; therefore, the management of adverse drug reactions (ADRs) with ALK-TKIs is crucial in clinical practice to maximize clinical benefits, prevent an adverse impact on quality of life, and improve patient compliance. In general, ALK-TKIs are well tolerated. There are, however, a number of serious toxicities that may necessitate dose modification or even discontinuation of treatment and the management of ADRs with ALK-TKIs has grown in importance. The therapeutic use of this class of medications still carries some risk because there are currently no pertinent guidelines or consensus recommendations for managing ADRs caused by ALK-TKIs in China. In order to improve the clinical management of ADRs with ALK-TKIs, the Chinese Society of Clinical Oncology (CSCO) Non-small Cell Lung Cancer Professional Committee led the discussion and summary of the incidence, diagnosis and grading standards, and prevention and treatment of ADRs caused by ALK-TKIs.
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Affiliation(s)
- F Zhou
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Thoracic Cancer Institute, Tongji University School of Medicine, Shanghai
| | - Y Yang
- Department of Medical Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou
| | - L Zhang
- Department of Medical Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou
| | - Y Cheng
- Department of Internal Medicine-Oncology, Jilin Cancer Hospital, Changchun
| | - B Han
- Department of Respiratory Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai
| | - Y Lu
- Department of Thoracic Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu
| | - C Wang
- Department of Lung Cancer, Lung Cancer Center, Tianjin Medical University Cancer Institute and Hospital, Key Laboratory of Cancer Prevention and Therapy, National Clinical Research Center of Cancer, Tianjin
| | - Z Wang
- Department of Medical Oncology, Shandong Cancer Hospital and Institute, Jinan
| | - N Yang
- Department of Medical Oncology, Lung Cancer and Gastrointestinal Unit, Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha
| | - Y Fan
- Department of Medical Oncology, Cancer Hospital of the University of Chinese Academy of Sciences/Zhejiang Cancer Hospital, Hangzhou
| | - L Wang
- Department of Medical Oncology, Drum Tower Hospital Affiliated to Medical School of Nanjing University, Nanjing
| | - Z Ma
- Department of Respiratory Medicine, Affiliated Cancer Hospital of Zhengzhou University/Henan Cancer Hospital, Zhengzhou
| | - L Zhang
- Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou
| | - Y Yao
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an
| | - J Zhao
- Department of Thoracic Medical Oncology, Peking University Cancer Hospital & Institute, Beijing
| | - X Dong
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan
| | - B Zhu
- Department of Oncology, Xinqiao Hospital, The Army Medical University, Chongqing, China
| | - C Zhou
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Thoracic Cancer Institute, Tongji University School of Medicine, Shanghai.
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20
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He A, Ma Z, Li Y, Huang C, Yong JWH, Huang J. Spatiotemporal, physiological and transcriptomic dynamics of wild jujube seedlings under saline conditions. Tree Physiol 2023; 43:832-850. [PMID: 36617163 DOI: 10.1093/treephys/tpad001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 12/07/2022] [Accepted: 01/02/2023] [Indexed: 05/13/2023]
Abstract
Soil salinity is a major constraint limiting jujube production in China. Wild jujube (Ziziphus jujuba var. spinosa (Bunge) Hu ex H. F. Chow) is widely used as the rootstock of jujube (Z. jujuba) to overcome the saline conditions. To understand the adaptive mechanism in wild jujube under saline conditions, we combined spatiotemporal and physiological assessments with transcriptomic analysis on wild jujube seedlings undergoing various salt treatments. These salt treatments showed dose and duration effects on biomass, photosynthesis, (K+) and (Na+) accumulation. Salt treatments induced higher levels of salicylic acid in roots and leaves, whereas foliar abscisic acid was also elevated after 8 days. The number of differential expression genes increased with higher doses and also longer exposure of NaCl treatments, with concomitant changes in the enriched Gene Ontology terms that were indicative of altered physiological activities. Gene co-expression network analysis identified the core gene sets associated with salt-induced changes in leaves, stems and roots, respectively. The nitrogen transporters, potassium transporters and a few transcription factors belonging to WRKY/MYB/bHLH families were clustered as the hub genes responding to salt treatments, which were related to elevated nitrogen and K+/Na+. Ectopic overexpression of two WRKY transcription factor genes (ZjWRKY6 and ZjWRKY65) conferred stronger salt-tolerance in Arabidopsis thaliana transformants by enhancing the activities of antioxidant enzymes, decreasing malondialdehyde accumulation and maintaining K+/Na+ homeostasis. This study provided evidence about the spatiotemporal, physiological and transcriptomic dynamics of wild jujube during salt stress and identified potential genes for further research to improve salt tolerance in jujube.
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Affiliation(s)
- Aobing He
- Key Laboratory of National Forestry and Grassland Administration on Silviculture in Loess Plateau, College of Forestry, Northwest A&F University, Yangling 712100, China
- Xinjiang Production & Construction Corps Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin, Alaer 843300, China
| | - Zhibo Ma
- Key Laboratory of National Forestry and Grassland Administration on Silviculture in Loess Plateau, College of Forestry, Northwest A&F University, Yangling 712100, China
| | - Yunfei Li
- Key Laboratory of National Forestry and Grassland Administration on Silviculture in Loess Plateau, College of Forestry, Northwest A&F University, Yangling 712100, China
| | - Chen Huang
- Key Laboratory of National Forestry and Grassland Administration on Silviculture in Loess Plateau, College of Forestry, Northwest A&F University, Yangling 712100, China
| | - Jean Wan Hong Yong
- Department of Biosystems and Technology, Swedish University of Agricultural Sciences, Alnarp 23456, Sweden
| | - Jian Huang
- Key Laboratory of National Forestry and Grassland Administration on Silviculture in Loess Plateau, College of Forestry, Northwest A&F University, Yangling 712100, China
- Xinjiang Production & Construction Corps Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin, Alaer 843300, China
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Liu S, Wang Q, Wang W, Wu L, Ma Z, Wang L, Chang G, Ding J, Hua L, Chen H, Li S, Wang W. [High-fat intake alleviates lung injury induced by Paragonimus proliferus infection in rats through up-regulating CYP 4A1 expression in lung tissues]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2023; 35:171-176. [PMID: 37253566 DOI: 10.16250/j.32.1374.2022243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
OBJECTIVE To explore the improvements of high-fat intake on lung injury induced by Paragonimus proliferus infection in rats, and to preliminarily explore the mechanisms underlying the role of cytochrome P450 4A1 (CYP 4A1) in the improve ments. METHODS SD rats were randomly assigned into three groups, including the normal control group (n = 10), the infection and normal diet group (n = 12) and the infection and high-fat diet group (n = 12). Rats in the normal control group were fed with normal diet and without any other treatments, and animals in the infection and normal diet group were subcutaneously injected with 8 excysted metacercariae of P. proliferus via the abdominal wall, followed by feeding with normal diet, while rats in the infection and high-fat diet group were subcutaneously injected with 8 excysted metacercariae of P. proliferus via the abdominal wall, followed by feeding with high-fat diet. All rats were sacrificed 28 weeks post-infection, and serum samples and lung specimens were collected. Following hematoxylin-eosin (HE) staining of rat lung specimens, the rat lung injury was observed under an optical microscope, and alveolitis was evaluated using semi-quantitative scoring. Serum interleukin-1β (IL-1β) and tumor necrosis factor alpha (TNF-α) levels were measured using enzyme-linked immunosorbent assay (ELISA), and the cytochrome P450 4A1 (CYP 4A1) expression was quantified in rat lung specimens at transcriptional and translational levels using quantitative real-time PCR (qPCR) and Western blotting assays. RESULTS Alveolar wall thickening, edema and inflammatory cell infiltration were alleviated 28 weeks post-infection with P. proliferus in rats in the infection and high-fat diet group relative to the infection and normal diet group, and no alveolar consolidation was seen in the infection and high-fat diet group. The semi-quantitative score of alveolitis was significantly higher in the infection and normal diet group [(2.200 ± 0.289) points] than in the normal control group [(0.300 ± 0.083) points] and the infection and high-fat diet group [(1.300 ± 0.475) points] (both P values < 0.05), and higher serum IL-1β [(151.586 ± 20.492)] pg/mL and TNF-α levels [(180.207 ± 23.379) pg/mL] were detected in the infection and normal diet group than in the normal control group [IL-1β: (103.226 ± 3.366) pg/mL; TNF-α: (144.807 ± 1.348) pg/mL] and the infection and high-fat diet group [IL-1β: (110.131 ± 12.946) pg/mL; TNF-α: (131.764 ± 27.831) pg/mL] (all P values < 0.05). In addition, lower CYP 4A1 mRNA (3.00 ± 0.81) and protein expression (0.40 ± 0.02) was quantified in lung specimens in the infection and normal diet group than in the normal control group [(5.03 ± 2.05) and (0.84 ± 0.14)] and the infection and high-fat diet group [(11.19 ± 3.51) and (0.68 ± 0.18)] (all P values < 0.05). CONCLUSIONS High-fat intake may alleviate lung injuries caused by P. proliferus infection in rats through up-regulating CYP 4A1 expression in lung tissues at both translational and transcriptional levels.
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Affiliation(s)
- S Liu
- Department of Hepatology, Clinical Center for Infectious Diseases of Yunnan Province/The Third People's Hospital of Kunming, Kunming, Yunnan 650041, China
- Co-first authors
| | - Q Wang
- Department of Hepatology, Clinical Center for Infectious Diseases of Yunnan Province/The Third People's Hospital of Kunming, Kunming, Yunnan 650041, China
- Co-first authors
| | - W Wang
- Department of Pathogen Biology, Faculty of Basic Medicine, Kunming Medical University, Kunming, Yunnan 650504, China
| | - L Wu
- Department of Hepatology, Clinical Center for Infectious Diseases of Yunnan Province/The Third People's Hospital of Kunming, Kunming, Yunnan 650041, China
| | - Z Ma
- Changpo Laboratory, Clinical Center for Infectious Diseases of Yunnan Province/The Third People's Hospital of Kunming, Yunnan Province, China
| | - L Wang
- Changpo Laboratory, Clinical Center for Infectious Diseases of Yunnan Province/The Third People's Hospital of Kunming, Yunnan Province, China
| | - G Chang
- Department of Hepatology, Clinical Center for Infectious Diseases of Yunnan Province/The Third People's Hospital of Kunming, Kunming, Yunnan 650041, China
| | - J Ding
- Department of Hepatology, Clinical Center for Infectious Diseases of Yunnan Province/The Third People's Hospital of Kunming, Kunming, Yunnan 650041, China
| | - L Hua
- Department of Hepatology, Clinical Center for Infectious Diseases of Yunnan Province/The Third People's Hospital of Kunming, Kunming, Yunnan 650041, China
| | - H Chen
- Department of Hepatology, Clinical Center for Infectious Diseases of Yunnan Province/The Third People's Hospital of Kunming, Kunming, Yunnan 650041, China
| | - S Li
- Department of Hepatology, Clinical Center for Infectious Diseases of Yunnan Province/The Third People's Hospital of Kunming, Kunming, Yunnan 650041, China
| | - W Wang
- Department of Pathogen Biology, Faculty of Basic Medicine, Kunming Medical University, Kunming, Yunnan 650504, China
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22
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Ma Z, Zhao X, Zhang X, Xu G, Liu F. [DTX2 overexpression promotes migration and invasion of colorectal cancer cells through the Notch2/Akt axis]. Nan Fang Yi Ke Da Xue Xue Bao 2023; 43:340-348. [PMID: 37087577 PMCID: PMC10122736 DOI: 10.12122/j.issn.1673-4254.2023.03.02] [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] [Subscribe] [Scholar Register] [Indexed: 04/24/2023]
Abstract
OBJECTIVE To investigate the effect of changes in DTX2 expression level on migration and invasion of colorectal cancer (CRC) cells and explore the mechanism. METHODS Two CRC cell lines SW620 and LoVo were transfected with a specific shRNA targeting DTX2 (DTX2-shRNA) or a DTX2-overexpressing plasmid (pcDNA-DTX2), and the transfection efficiency was evaluated with RT-qPCR and Western blotting. Scratch and Transwell assays were used to assess the changes in migration and invasion ability of the transfected cells, and the cellular expression levels of Notch2, NICD, AKT, p-Akt and MMP-2/9 proteins were detected with Western blotting. The CRC cells were co-transfected with pcDNA-DTX2 and Notch2 siRNA to assess the effect of Notch2 knockdown on DTX2 overexpression-induced enhancement of cell migration and invasion. RESULTS The expression levels of DTX2 at both the mRNA and protein levels were significantly decreased in CRC cells transfected with DTX2- shRNA (P < 0.01) and increased in cells transfected with pcDNA-DTX2 (P < 0.01). Scratch and Transwell assays showed that the migration and invasion abilities of CRC cells were significantly lowered following DTX2 knockdown (P < 0.01) and were enhanced in cells with DTX2 overexpression (P < 0.01). The expression levels of Notch2, NICD, p-Akt and MMP-2 proteins decreased significantly in CRC cells with DTX2 knockdown (P < 0.05) and increased obviously in DTX2-overexpressing cells (P < 0.05). In both of the two CRC cell lines, transfection with Notch2 siRNA obviously reversed the effect of DTX2 overexpression in promoting cell migration and invasion (P < 0.01) and expressions of the related proteins. CONCLUSION DTX2 overexpression promotes migration and invasion of CRC cells through the Notch2/Akt axis, suggesting the potential of DTX2 as a new biological indicator of CRC.
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Affiliation(s)
- Z Ma
- Department of Anorectal Surgery, Dalian University Affiliated Xinhua Hospital, Dalian 116021, China
| | - X Zhao
- Department of Anorectal Surgery, Dalian University Affiliated Xinhua Hospital, Dalian 116021, China
| | - X Zhang
- Department of Anorectal Surgery, Dalian University Affiliated Xinhua Hospital, Dalian 116021, China
| | - G Xu
- Department of Anorectal Surgery, Dalian University Affiliated Xinhua Hospital, Dalian 116021, China
| | - F Liu
- Department of Anorectal Surgery, Dalian University Affiliated Xinhua Hospital, Dalian 116021, China
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23
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O'Brien BJ, Faraoni EY, Strickland LN, Ma Z, Mota V, Mota S, Chen X, Mills T, Eltzschig HK, DelGiorno KE, Bailey‐Lundberg JM. CD73-generated extracellular adenosine promotes resolution of neutrophil-mediated tissue injury and restrains metaplasia in pancreatitis. FASEB J 2023; 37:e22684. [PMID: 36468677 PMCID: PMC9753971 DOI: 10.1096/fj.202201537r] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [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: 09/22/2022] [Revised: 11/07/2022] [Accepted: 11/21/2022] [Indexed: 12/12/2022]
Abstract
Pancreatitis is currently the leading cause of gastrointestinal hospitalizations in the US. This condition occurs in response to abdominal injury, gallstones, chronic alcohol consumption or, less frequently, the cause remains idiopathic. CD73 is a cell surface ecto-5'-nucleotidase that generates extracellular adenosine, which can contribute to resolution of inflammation by binding adenosine receptors on infiltrating immune cells. We hypothesized genetic deletion of CD73 would result in more severe pancreatitis due to decreased generation of extracellular adenosine. CD73 knockout (CD73-/- ) and C57BL/6 (wild type, WT) mice were used to evaluate the progression and response of caerulein-induced acute and chronic pancreatitis. In response to caerulein-mediated chronic or acute pancreatitis, WT mice display resolution of pancreatitis at earlier timepoints than CD73-/- mice. Using immunohistochemistry and analysis of single-cell RNA-seq (scRNA-seq) data, we determined CD73 localization in chronic pancreatitis is primarily observed in mucin/ductal cell populations and immune cells. In murine pancreata challenged with caerulein to induce acute pancreatitis, we compared CD73-/- to WT mice and observed a significant infiltration of Ly6G+, MPO+, and Granzyme B+ cells in CD73-/- compared to WT pancreata and we quantified a significant increase in acinar-to-ductal metaplasia demonstrating sustained metaplasia and inflammation in CD73-/- mice. Using neutrophil depletion in CD73-/- mice, we show neutrophil depletion significantly reduces metaplasia defined by CK19+ cells per field and significantly reduces acute pancreatitis. These data identify CD73 enhancers as a potential therapeutic strategy for patients with acute and chronic pancreatitis as adenosine generation and activation of adenosine receptors is critical to resolve persistent inflammation in the pancreas.
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Affiliation(s)
- Baylee J. O'Brien
- Center for Perioperative Medicine, Department of Anesthesiology, McGovern Medical SchoolThe University of Texas Health Science Center at HoustonHoustonTexasUSA
| | - Erika Y. Faraoni
- Center for Perioperative Medicine, Department of Anesthesiology, McGovern Medical SchoolThe University of Texas Health Science Center at HoustonHoustonTexasUSA
| | - Lincoln N. Strickland
- Center for Perioperative Medicine, Department of Anesthesiology, McGovern Medical SchoolThe University of Texas Health Science Center at HoustonHoustonTexasUSA
| | - Zhibo Ma
- Gene Expression LaboratoryThe Salk Institute for Biological SciencesSan DiegoCaliforniaUSA
| | - Victoria Mota
- Center for Perioperative Medicine, Department of Anesthesiology, McGovern Medical SchoolThe University of Texas Health Science Center at HoustonHoustonTexasUSA
| | - Samantha Mota
- Center for Perioperative Medicine, Department of Anesthesiology, McGovern Medical SchoolThe University of Texas Health Science Center at HoustonHoustonTexasUSA
- The Graduate School of Biomedical SciencesThe University of Texas MD Anderson Cancer Center and The University of Texas Health Science Center at HoustonHoustonTexasUSA
| | - Xuebo Chen
- Center for Perioperative Medicine, Department of Anesthesiology, McGovern Medical SchoolThe University of Texas Health Science Center at HoustonHoustonTexasUSA
| | - Tingting Mills
- Department of Biochemistry, McGovern Medical SchoolThe University of Texas Health Science Center at HoustonHoustonTexasUSA
| | - Holger K. Eltzschig
- Center for Perioperative Medicine, Department of Anesthesiology, McGovern Medical SchoolThe University of Texas Health Science Center at HoustonHoustonTexasUSA
| | - Kathleen E. DelGiorno
- Department of Cell and Developmental BiologyVanderbilt UniversityNashvilleTennesseeUSA
| | - Jennifer M. Bailey‐Lundberg
- Center for Perioperative Medicine, Department of Anesthesiology, McGovern Medical SchoolThe University of Texas Health Science Center at HoustonHoustonTexasUSA
- The Graduate School of Biomedical SciencesThe University of Texas MD Anderson Cancer Center and The University of Texas Health Science Center at HoustonHoustonTexasUSA
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24
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Ma M, Su J, Wang Y, Wang L, Li Y, Ding G, Ma Z, Peppelenbosch MP. Association of body mass index and intestinal (faecal) Streptococcus in adults in Xining city, China P.R. Benef Microbes 2022; 13:465-472. [PMID: 36264094 DOI: 10.3920/bm2021.0046] [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: 12/13/2022]
Abstract
Body mass index (BMI) and gut microbiota show significant interaction, but most studies on the relationship between BMI and gut microbiota have been done in Western countries. Relationships that are also identified in other cultural backgrounds are likely to have functional importance. Hence here we explore gut microbiota in adults living in Xining city (China P.R.) and relate results to subject BMI. Analysis of bacterial 16s rRNA gene was performed on faecal samples from participants with normal-weight (n=24), overweight (n=24), obesity (n=11) and type 2 diabetes (T2D) (n=8). The results show that unweighted but not weighted Unifrac distance was significantly different when gut microbiota composition was compared between the groups. Importantly, the genus Streptococcus was remarkably decreased in both obese subjects and subjects suffering from T2D, as compared to normal-weight subjects. Accordingly, strong association was identified between the genus Streptococcus and BMI and especially Streptococcus salivarius subsp. thermophiles was a major contributor in this respect. As previous studies have shown that Streptococcus salivarius subsp. thermophiles is also negatively associated with obesity in Western cohorts, our results suggest that this species is a potential probiotic for the prevention of obesity and related disorders.
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Affiliation(s)
- M Ma
- Department of endocrinology, the Fifth People's Hospital of Qinghai Province (Qinghai Tumor Hospital), Xining, China P.R
| | - J Su
- Department of Gastroenterology and Hepatology, Erasmus MC - University Medical Center Rotterdam, P.O. Box 2040, 3000 CA, Rotterdam, the Netherlands
- Department of Basic Medicine, Medical School, Kunming University of Science and Technology, Kunming, 650500, China P.R
| | - Y Wang
- China-Malaysia National Joint Laboratory, Biomedical Research Center, Northwest Minzu University, Lanzhou, 730030, China P.R
| | - L Wang
- Department of endocrinology, the Fifth People's Hospital of Qinghai Province (Qinghai Tumor Hospital), Xining, China P.R
| | - Y Li
- Department of endocrinology, the Fifth People's Hospital of Qinghai Province (Qinghai Tumor Hospital), Xining, China P.R
| | - G Ding
- China-Malaysia National Joint Laboratory, Biomedical Research Center, Northwest Minzu University, Lanzhou, 730030, China P.R
| | - Z Ma
- China-Malaysia National Joint Laboratory, Biomedical Research Center, Northwest Minzu University, Lanzhou, 730030, China P.R
| | - M P Peppelenbosch
- Department of Gastroenterology and Hepatology, Erasmus MC - University Medical Center Rotterdam, P.O. Box 2040, 3000 CA, Rotterdam, the Netherlands
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25
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Langille E, Al-Zahrani KN, Ma Z, Liang M, Uuskula-Reimand L, Espin R, Teng K, Malik A, Bergholtz H, El Ghamrasni S, Afiuni-Zadeh S, Tsai R, Alvi S, Elia A, Lü Y, Oh RH, Kozma KJ, Trcka D, Narimatsu M, Liu JC, Nguyen T, Barutcu S, Loganathan SK, Bremner R, Bader GD, Egan SE, Cescon DW, Sørlie T, Wrana JL, Jackson HW, Wilson MD, Witkiewicz AK, Knudsen ES, Pujana MA, Wahl GM, Schramek D. Loss of Epigenetic Regulation Disrupts Lineage Integrity, Induces Aberrant Alveogenesis, and Promotes Breast Cancer. Cancer Discov 2022; 12:2930-2953. [PMID: 36108220 PMCID: PMC9812400 DOI: 10.1158/2159-8290.cd-21-0865] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/15/2022] [Accepted: 09/13/2022] [Indexed: 01/21/2023]
Abstract
Systematically investigating the scores of genes mutated in cancer and discerning disease drivers from inconsequential bystanders is a prerequisite for precision medicine but remains challenging. Here, we developed a somatic CRISPR/Cas9 mutagenesis screen to study 215 recurrent "long-tail" breast cancer genes, which revealed epigenetic regulation as a major tumor-suppressive mechanism. We report that components of the BAP1 and COMPASS-like complexes, including KMT2C/D, KDM6A, BAP1, and ASXL1/2 ("EpiDrivers"), cooperate with PIK3CAH1047R to transform mouse and human breast epithelial cells. Mechanistically, we find that activation of PIK3CAH1047R and concomitant EpiDriver loss triggered an alveolar-like lineage conversion of basal mammary epithelial cells and accelerated formation of luminal-like tumors, suggesting a basal origin for luminal tumors. EpiDriver mutations are found in ∼39% of human breast cancers, and ∼50% of ductal carcinoma in situ express casein, suggesting that lineage infidelity and alveogenic mimicry may significantly contribute to early steps of breast cancer etiology. SIGNIFICANCE Infrequently mutated genes comprise most of the mutational burden in breast tumors but are poorly understood. In vivo CRISPR screening identified functional tumor suppressors that converged on epigenetic regulation. Loss of epigenetic regulators accelerated tumorigenesis and revealed lineage infidelity and aberrant expression of alveogenesis genes as potential early events in tumorigenesis. This article is highlighted in the In This Issue feature, p. 2711.
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Affiliation(s)
- Ellen Langille
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada,Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Khalid N. Al-Zahrani
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Zhibo Ma
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Minggao Liang
- Hospital for Sick Children, Toronto, Ontario, M5G 0A4, Canada
| | | | - Roderic Espin
- Program Against Cancer Therapeutic Resistance (ProCURE), Catalan Institute of Oncology (ICO), Oncobell, Bellvitge Institute for Biomedical Research (IDIBELL), L’Hospitalet del Llobregat, Barcelona, Spain
| | - Katie Teng
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada,Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Ahmad Malik
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada,Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Helga Bergholtz
- Department of Cancer Genetics, Institute for Cancer Research, Oslo University Hospital, 0450 Oslo, Norway
| | - Samah El Ghamrasni
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Somaieh Afiuni-Zadeh
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Ricky Tsai
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Sana Alvi
- Hospital for Sick Children, Toronto, Ontario, M5G 0A4, Canada
| | - Andrew Elia
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - YiQing Lü
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada,Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Robin H. Oh
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada,Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Katelyn J. Kozma
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada,Hospital for Sick Children, Toronto, Ontario, M5G 0A4, Canada
| | - Daniel Trcka
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Masahiro Narimatsu
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Jeff C. Liu
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Thomas Nguyen
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada,Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Seda Barutcu
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Sampath K. Loganathan
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Rod Bremner
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Gary D. Bader
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Sean E. Egan
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada,Hospital for Sick Children, Toronto, Ontario, M5G 0A4, Canada
| | - David W. Cescon
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Therese Sørlie
- Department of Cancer Genetics, Institute for Cancer Research, Oslo University Hospital, 0450 Oslo, Norway,Institute of Clinical Medicine, University of Oslo, 0315 Oslo, Norway
| | - Jeffrey L. Wrana
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada,Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Hartland W. Jackson
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada,Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Michael D. Wilson
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada,Hospital for Sick Children, Toronto, Ontario, M5G 0A4, Canada
| | | | - Erik S. Knudsen
- Center for Personalized Medicine, Roswell Park Cancer Institute, Buffalo, New York
| | - Miguel Angel Pujana
- Program Against Cancer Therapeutic Resistance (ProCURE), Catalan Institute of Oncology (ICO), Oncobell, Bellvitge Institute for Biomedical Research (IDIBELL), L’Hospitalet del Llobregat, Barcelona, Spain
| | - Geoffrey M. Wahl
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Daniel Schramek
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada,Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada,Correspondence and requests for materials should be addressed to Daniel Schramek, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada M5G 1X5, Phone: +1 416 586-4800, Fax: +1 416 586-8869,
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Lu S, Wang J, Yu Y, Yu X, Hu Y, Ma Z, Li X, He W, Bao Y, Wang M. 138P Randomized phase III study of tislelizumab plus chemotherapy versus chemotherapy alone as first-line treatment for advanced non-squamous non-small cell lung cancer (nsq-NSCLC): RATIONALE-304 updated analysis. Immuno-Oncology and Technology 2022. [DOI: 10.1016/j.iotech.2022.100250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Duan ZJ, Feng J, Yao K, Hu ZJ, Ma Z, Xiang L, Zhang XF, Qi XL. [Clinicopathological characteristics of H3K27-altered diffuse midline glioma and evaluation of NTRK as its therapeutic target]. Zhonghua Bing Li Xue Za Zhi 2022; 51:1115-1122. [PMID: 36323540 DOI: 10.3760/cma.j.cn112151-20220507-00378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective: To investigate the clinicopathological characteristics of H3K27-altered diffuse midline glioma (DMG), and to analyze DMG's prognostic factors, and subsequently, to study the possibility of using NTRK as a therapeutic target for DMG. Methods: A total of 232 DMG diagnosed at the Sanbo Brain Hospital, Capital Medical University, Beijing, China from July 2016 to March 2021 were collected. Their clinical, radiological and pathological features, the ratio of MGMT promoter methylation, expression of NTRK, and characteristics of NTRK gene fusion were analyzed. The prognostic values of different factors were also studied, including age, tumor location, histological grade, gene and protein expression of NTRK, and postoperative adjuvant therapy. Results: Among the 232 DMG cases, there were 8 patients with both primary and relapse tumors on the record. Thus, a total of 224 patients were analyzed, including 118 males and 106 females. There were 126 adults (>18 years of age) and 98 children (≤18 years of age). Notably, the most frequent location was thalamus (41/126, 32.5%) in adults, but brainstem (59/96, 60.2%) in children. The lesions showed T1 hypointensity or isointensity, and T2 hyperintensity. However, contrast enhancement patterns of the tumors varied, with many tumors lacking contrast-enhancing. The histological grades included grade 2 (9/224, 4.0%), grade 3 (41/224, 18.3%) and grade 4 (174/224, 77.7%). Two hundred and twenty-four DMGs were diffusely positive for H3K27M and negative for H3K27me3. The ratio of MGMT promoter methylation was low (1/45, 2.2%). One hundred and seventy-seven of the 224 cases (177/224, 79.0%) were positive for NTRK. Fifty cases were analyzed using fluorescence in situ hybridization. Among them, five DMGs (positive rate, 10.0%) were NTRK fusion positive. This study showed that there were no differences between adult and pediatric DMGs in histological grading, expression of NTRK, and NTRK gene fusion. One hundred and fifty-nine patients were included in the follow-up analysis (P>0.05). During the follow-up period, 109/159 patients (69.6%) died of the disease, with a median survival time of 12 months (range 1 to 55 months). Univariate log-rank analysis showed that age, location, surgical procedure and postoperative adjuvant therapy were associated with overall survivals of the DMG patients (P<0.05). Conclusions: The prognosis of DMG is poor overall. There are differences between adult and pediatric DMGs in anatomic location and prognosis, but not in other features. NTRK1 gene fusion is detected in 10.0% of the tumors. It suggests that TRK inhibitor might be a choice for treating DMG.
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Affiliation(s)
- Z J Duan
- Department of Pathology, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - J Feng
- Department of Pathology, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - K Yao
- Department of Pathology, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - Z J Hu
- Department of Pathology, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - Z Ma
- Department of Pathology, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - L Xiang
- Department of Pathology, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - X F Zhang
- Department of Imaging, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - X L Qi
- Department of Pathology, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
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Yang J, Yu S, Shi GF, Yan L, Lv RT, Ma Z, Wang L. Comparative analysis of R2R3-MYB transcription factors in the flower of Iris laevigata identifies a novel gene regulating tobacco cold tolerance. Plant Biol (Stuttg) 2022; 24:1066-1075. [PMID: 35779251 DOI: 10.1111/plb.13452] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 06/02/2022] [Indexed: 06/15/2023]
Abstract
Breeding for flower cold resistance is a priority for flower breeding research in northern China. The identification of cold resistance genes will not only provide genetic resources for cold resistance breeding, but also form a basis for the study of plant cold resistance mechanisms. Based on the flower transcriptome of Iris laevigata, 20 R2R3-MYBs were identified and comprehensive analysis, including conservative domain, phylogenetic analyses and functional distribution, were performed for R2R3-MYBs. Expression patterns of the abiotic stress genes under cold stress were detected, the upregulated gene was genetically transformed into tobacco, and the related physiological indicators of the transgenic tobacco were measured. A novel cold resistance gene, IlMYB306, was obtained. qRT-PCR indicated that IlMYB306 was dramatically induced by cold stress and was significantly upregulated in roots. The free proline content, MDA, SOD and POD activity of the transgenic tobacco improved after cold stress, and the chlorophyll content decreased slowly. In addition, overexpression of IlMYB306 improved cold resistance of the seeds. SEM results showed leaves of transgenic tobacco had obvious folds, more grooves and bulges on the lower leaf surface. Overall, we report a novel cold resistance R2R3-MYB gene, IlMYB306, in the flower of I. laevigata, which could improve tobacco cold stress tolerance by thickening the waxy layer, increasing antioxidant activity and the content of proline.
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Affiliation(s)
- J Yang
- College of Landscape Architecture, Northeast Forestry University, Harbin, China
| | - S Yu
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, Northeast Forestry University, Harbin, China
| | - G F Shi
- College of Landscape Architecture, Northeast Forestry University, Harbin, China
| | - L Yan
- College of Landscape Architecture, Northeast Forestry University, Harbin, China
| | - R T Lv
- College of Landscape Architecture, Northeast Forestry University, Harbin, China
| | - Z Ma
- Department of Biology, Truman State University, Kirksville, MO, USA
| | - L Wang
- College of Landscape Architecture, Northeast Forestry University, Harbin, China
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Zhou C, A. Xiong, Fang J, Li X, Fan Y, Zhuang W, Xie Q, Ma Z, Kang M, Xu T, Xu M, Zhi L, Liu Q, Wang N. 1022P A phase II study of KN046 (a bispecific anti-PD-L1/CTLA-4) in patients with metastatic non-small cell lung cancer (NSCLC) who failed first line treatment. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1148] [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: 11/01/2022] Open
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30
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Zhao J, Cui J, Huang D, Sun M, Ma Z, Chu Q, Liu Y, Wang Z, Li X, Li H, Zhang J, Sun J, Fei C, Wu YL. EP08.01-070 Safety and Efficacy of Sitravatinib + Tislelizumab in Patients with PD-L1+, Locally Advanced/Metastatic, Squamous NSCLC. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.642] [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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31
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Wang H, Xing R, Niu Y, Zhang M, Zhang X, Li M, Ma Z. EP08.02-006 Data from Real World to Evaluate the Efficacy of Almonertinib in EGFR-mutant NSCLC Patients. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.688] [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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32
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Wang H, Li M, Zhang M, Xing R, Zhang G, Zhang X, Niu Y, Ma Z. EP08.02-005 A Prospective Non-randomized Observational Study on Efficacy and Its Relative Factors of Pemetrexed Combined With EGFR-TKIs in NSCLC. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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33
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Zhou C, Huang D, Fan Y, Yu X, Liu Y, Shu Y, Ma Z, Wang Z, Cheng Y, Wang J, Hu S, Liu Z, Poddubskaya E, Disel U, Akopov A, Dvorkin M, Wang Y, Li S, Yu C, Rivalland G. EP08.01-014 Tislelizumab versus Docetaxel in Previously Treated Advanced Non-Small Cell Lung Cancer: Final Analysis of RATIONALE-303. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.586] [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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34
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Wu L, Wu Z, Xiao Z, Ma Z, Weng J, Chen Y, Cao Y, Cao P, Xiao M, Zhang H, Duan H, Wang Q, Li J, Xu Y, Pu X, Li K. EP08.02-158 Final Analyses of ALTER-L018: A Randomized Phase II Trial of Anlotinib Plus Docetaxel vs Docetaxel as 2nd-line Therapy for EGFR-negative NSCLC. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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35
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Zhao J, Wu J, Cui J, Wang L, Sun M, Gao B, Ma Z, Liu Y, Wang Z, Li X, Li H, Zhang J, Sun J, Fei C, Wu YL. EP08.01-071 Safety and Efficacy of Sitravatinib + Tislelizumab in Patients with PD-L1+, Locally Advanced/Metastatic, Non-Squamous NSCLC. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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36
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Zhou C, Huang D, Fan Y, Yu X, Liu Y, Shu Y, Ma Z, Wang Z, Cheng Y, Wang J, Hu S, Poddubskaya E, Disel U, Akopov A, Dvorkin M, Wang Y, Ghassemifar S, Li S, Rivalland G. 1031P Tislelizumab (TIS) versus docetaxel (TAX) as second- or third-line therapy in previously treated patients (pts) with locally advanced non-small cell lung cancer (NSCLC): Asian versus non-Asian subgroup analysis of the RATIONALE-303 study. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1157] [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: 11/01/2022] Open
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37
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Wu YL, Zhou Q, Chen M, Pan Y, Jian O, Hu D, Lin Q, Wu G, Cui J, Chang J, Cheng Y, Huang C, Liu A, Yang N, Gong Y, Zhu C, Ma Z, Fang J, Chen G, Zhao J, Shi A, Lin Y, Li G, Liu Y, Wang D, Wu R, Xu X, Shi J, Liu Z, Wang J, Yang J. OA02.05 Sugemalimab vs Placebo after cCRT or sCRT in pts with Unresectable Stage III NSCLC: Final PFS Analysis of a Phase 3 Study. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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38
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Ma Z, Zhao X, He A, Cao Y, Han Q, Lu Y, Yong JWH, Huang J. Mycorrhizal symbiosis reprograms ion fluxes and fatty acid metabolism in wild jujube during salt stress. Plant Physiol 2022; 189:2481-2499. [PMID: 35604107 PMCID: PMC9342988 DOI: 10.1093/plphys/kiac239] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 04/30/2022] [Indexed: 05/25/2023]
Abstract
Chinese jujube (Ziziphus jujuba) is an important fruit tree in China, and soil salinity is the main constraint affecting jujube production. It is unclear how arbuscular mycorrhizal (AM) symbiosis supports jujube adaptation to salt stress. Herein, we performed comparative physiological, ion flux, fatty acid (FA) metabolomic, and transcriptomic analyses to examine the mechanism of AM jujube responding to salt stress. AM seedlings showed better performance during salt stress. AM symbiosis altered phytohormonal levels: indole-3-acetic acid and abscisic acid contents were significantly increased in AM roots and reduced by salt stress. Mycorrhizal colonization enhanced root H+ efflux and K+ influx, while inducing expression of plasma membrane-type ATPase 7 (ZjAHA7) and high-affinity K+ transporter 2 (ZjHAK2) in roots. High K+/Na+ homeostasis was maintained throughout salt exposure. FA content was elevated in AM leaves as well as roots, especially for palmitic acid, oleic acid, trans oleic acid, and linoleic acid, and similar effects were also observed in AM poplar (Populus. alba × Populus. glandulosa cv. 84K) and Medicago truncatula, indicating AM symbiosis elevating FA levels could be a conserved physiological effect. Gene co-expression network analyses uncovered a core gene set including 267 genes in roots associated with AM symbiosis and conserved transcriptional responses, for example, FA metabolism, phytohormone signal transduction, SNARE interaction in vesicular transport, and biotin metabolism. In contrast to widely up-regulated genes related to FA metabolism in AM roots, limited genes were affected in leaves. We propose a model of AM symbiosis-linked reprogramming of FA metabolism and provide a comprehensive insight into AM symbiosis with a woody species adaptation to salt stress.
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Affiliation(s)
- Zhibo Ma
- Key Laboratory of National Forestry and Grassland Administration on Silviculture in Loess Plateau, College of Forestry, Northwest A&F University, Yangling 712100, China
| | - Xinchi Zhao
- Key Laboratory of National Forestry and Grassland Administration on Silviculture in Loess Plateau, College of Forestry, Northwest A&F University, Yangling 712100, China
| | - Aobing He
- Key Laboratory of National Forestry and Grassland Administration on Silviculture in Loess Plateau, College of Forestry, Northwest A&F University, Yangling 712100, China
| | - Yan Cao
- Key Laboratory of National Forestry and Grassland Administration on Silviculture in Loess Plateau, College of Forestry, Northwest A&F University, Yangling 712100, China
| | - Qisheng Han
- Farmland Irrigation Research Institute, Chinese Academy of Agricultural Sciences, Xinxiang 453002, China
| | - Yanjun Lu
- Key Laboratory of National Forestry and Grassland Administration on Silviculture in Loess Plateau, College of Forestry, Northwest A&F University, Yangling 712100, China
| | - Jean Wan Hong Yong
- Department of Biosystems and Technology, Swedish University of Agricultural Sciences, Alnarp 75007, Sweden
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39
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Chen ML, Liu WD, Zhuang XZ, Ma Z. [A case report of acute methyl acetate poisoning in cloth processing workshop]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2022; 40:447-449. [PMID: 35785901 DOI: 10.3760/cma.j.cn121094-20210406-00191] [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] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
This article analyzed the clinical data of a patient with occupational chemical poisoning in a fabric processing workshop in August 2020, and carried out occupational hygiene investigation and testing. The patient went to the doctor because of painless progressive vision loss in both eyes, and was clinically diagnosed with methanol poisoning optic neuropathy in both eyes. The glue, solvent, washing machine water, and curing agent used in the workshop were used for qualitative analysis of volatile organic components, and methyl acetate was all detected. Esters, the relative percentages were 42.56%, 66.67%, 46.43%, and 41.63%, respectively. Therefore, it was judged that the patient was occupational acute methyl acetate poisoning, the enterprise should strengthen the awareness of safe production and enhance the occupational hygiene knowledge and self-protection awareness of workers.
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Affiliation(s)
- M L Chen
- Health Care Department, the Sixth People's Hospital of Dongguan, Dongguan 523000, China
| | - W D Liu
- Health Care Department, the Sixth People's Hospital of Dongguan, Dongguan 523000, China
| | - X Z Zhuang
- Occupational Health Monitoring and Evalution Section, the Sixth People's Hospital of Dongguan, Dongguan 523000, China
| | - Z Ma
- Occupational Hygiene, the Sixth People's Hospital of Dongguan, Dongguan 523000, China
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40
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Gubbala VB, Jytosana N, Trinh VQ, Maurer HC, Naeem RF, Lytle NK, Ma Z, Zhao S, Lin W, Han H, Shi Y, Hunter T, Singh PK, Olive KP, Tan MC, Kaech SM, Wahl GM, DelGiorno KE. Eicosanoids in the pancreatic tumor microenvironment - a multicellular, multifaceted progression. Gastro Hep Adv 2022; 1:682-697. [PMID: 36277993 PMCID: PMC9583893 DOI: 10.1016/j.gastha.2022.02.007] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
BACKGROUND AND AIMS Eicosanoids, oxidized fatty acids that serve as cell-signaling molecules, have been broadly implicated in tumorigenesis. Here, we aimed to identify eicosanoids associated with pancreatic tumorigenesis and the cell types responsible for their synthesis. METHODS We profiled normal pancreas and pancreatic ductal adenocarcinoma (PDAC) in mouse models and patient samples using mass spectrometry. We interrogated RNA sequencing datasets for eicosanoid synthase or receptor expression. Findings were confirmed by immunostaining. RESULTS In murine models, we identified elevated levels of PGD2, prostacyclin, and thromboxanes in neoplasia while PGE2, 12-HHTre, HETEs, and HDoHEs are elevated specifically in tumors. Analysis of scRNA-seq datasets suggests that PGE2 and prostacyclins are derived from fibroblasts, PGD2 and thromboxanes from myeloid cells, and PGD2 and 5-HETE from tuft cells. In patient samples, we identified a transition from PGD2 to PGE2-producing enzymes in the epithelium during the transition to PDAC, fibroblast/tumor expression of PTGIS, and myeloid/tumor cell expression of TBXAS1. CONCLUSIONS Our analyses identify key changes in eicosanoid species during pancreatic tumorigenesis and the cell types that contribute to their synthesis. Thromboxane and prostacyclin expression is conserved between animal models and human disease and may represent new druggable targets.
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Affiliation(s)
- Vikas B. Gubbala
- Gene Expression Laboratory, Salk Institute for Biological
Studies, La Jolla, CA, 92037
| | - Nidhi Jytosana
- Department of Cell and Developmental Biology, Vanderbilt
University, Nashville, TN, 37232
| | - Vincent Q. Trinh
- Department of Surgery, Vanderbilt University Medical
Center, Nashville, TN, 37232
| | - H. Carlo Maurer
- Department of Medicine, Herbert Irving Comprehensive Cancer
Center, Columbia University Irving Medical Center, New York, NY, 10032
- Internal Medicine II, School of Medicine, Technische
Universität München, Munich, Germany
| | - Razia F. Naeem
- Gene Expression Laboratory, Salk Institute for Biological
Studies, La Jolla, CA, 92037
| | - Nikki K. Lytle
- Gene Expression Laboratory, Salk Institute for Biological
Studies, La Jolla, CA, 92037
| | - Zhibo Ma
- Gene Expression Laboratory, Salk Institute for Biological
Studies, La Jolla, CA, 92037
| | - Steven Zhao
- Immunobiology and Microbial Pathogenesis Laboratory, Salk
Institute for Biological Studies, La Jolla, CA, 92037
| | - Wei Lin
- Molecular Medicine Division, Translational Genomics
Research Institute, Phoenix, AZ, 85004
| | - Haiyong Han
- Molecular Medicine Division, Translational Genomics
Research Institute, Phoenix, AZ, 85004
| | - Yu Shi
- Molecular and Cell Biology Laboratory, Salk Institute for
Biological Studies, La Jolla, CA, 92037
| | - Tony Hunter
- Molecular and Cell Biology Laboratory, Salk Institute for
Biological Studies, La Jolla, CA, 92037
| | - Pankaj K. Singh
- Eppley Institute for Research in Cancer, University of
Nebraska Medical Center, Omaha, NE, 68198
| | - Kenneth P. Olive
- Department of Medicine, Herbert Irving Comprehensive Cancer
Center, Columbia University Irving Medical Center, New York, NY, 10032
| | - Marcus C.B. Tan
- Department of Surgery, Vanderbilt University Medical
Center, Nashville, TN, 37232
- Vanderbilt Digestive Disease Research Center, Vanderbilt
University Medical Center, Nashville, TN, 37232
- Vanderbilt Ingram Cancer Center, Nashville, TN,
37232
| | - Susan M. Kaech
- Immunobiology and Microbial Pathogenesis Laboratory, Salk
Institute for Biological Studies, La Jolla, CA, 92037
| | - Geoffrey M. Wahl
- Gene Expression Laboratory, Salk Institute for Biological
Studies, La Jolla, CA, 92037
| | - Kathleen E. DelGiorno
- Department of Cell and Developmental Biology, Vanderbilt
University, Nashville, TN, 37232
- Vanderbilt Digestive Disease Research Center, Vanderbilt
University Medical Center, Nashville, TN, 37232
- Vanderbilt Ingram Cancer Center, Nashville, TN,
37232
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41
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Ma Z, Wong S, Forgham H, Esser L, Lai M, Leiske M, Kempe K, Sharbeen G, Youkhana J, Mansfeld F, Quinn J, Phillips P, Davis T, Kavallaris M, McCarroll J. Aerosol delivery of star polymer-siRNA nanoparticles as a therapeutic strategy to inhibit lung tumor growth. Biomaterials 2022; 285:121539. [DOI: 10.1016/j.biomaterials.2022.121539] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 04/19/2022] [Accepted: 04/20/2022] [Indexed: 01/12/2023]
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Wang Y, Ma Z, Fu G, Wang J, Xi Q, Wang Y, Jia Z, Zi G. A Low-Frequency MEMS Magnetoelectric Antenna Based on Mechanical Resonance. Micromachines 2022; 13:mi13060864. [PMID: 35744478 PMCID: PMC9228862 DOI: 10.3390/mi13060864] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 05/22/2022] [Accepted: 05/27/2022] [Indexed: 02/04/2023]
Abstract
Antenna miniaturization technology has been a challenging problem in the field of antenna design. The demand for antenna miniaturization is even stronger because of the larger size of the antenna in the low-frequency band. In this paper, we consider MEMS magnetoelectric antennas based on mechanical resonance, which sense the magnetic fields of electromagnetic waves through the magnetoelectric (ME) effect at their mechanical resonance frequencies, giving a voltage output. A 70 μm diameter cantilever disk with SiO2/Cr/Au/AlN/Cr/Au/FeGaB stacked layers is prepared on a 300 μm silicon wafer using the five-masks micromachining process. The MEMS magnetoelectric antenna showed a giant ME coefficient is 2.928 kV/cm/Oe in mechanical resonance at 224.1 kHz. In addition, we demonstrate the ability of this MEMS magnetoelectric antenna to receive low-frequency signals. This MEMS magnetoelectric antenna can provide new ideas for miniaturization of low-frequency wireless communication systems. Meanwhile, it has the potential to detect weak electromagnetic field signals.
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Affiliation(s)
- Yinan Wang
- The Ministry of Education Key Lab of Micro/Nano Systems for Aerospace, Northwestern Polytechnical University, Ministry of Education, Xi’an 710072, China; (Y.W.); (J.W.); (Q.X.); (Y.W.); (Z.J.); (G.Z.)
- Shaan’xi Key Lab of MEMS/NEMS, Northwestern Polytechnical University, Xi’an 710072, China
| | - Zhibo Ma
- The Ministry of Education Key Lab of Micro/Nano Systems for Aerospace, Northwestern Polytechnical University, Ministry of Education, Xi’an 710072, China; (Y.W.); (J.W.); (Q.X.); (Y.W.); (Z.J.); (G.Z.)
- Shaan’xi Key Lab of MEMS/NEMS, Northwestern Polytechnical University, Xi’an 710072, China
- Correspondence: (Z.M.); (G.F.)
| | - Guanglei Fu
- Training Center for Engineering Practices, Northwestern Polytechnical University, Xi’an 710072, China
- Correspondence: (Z.M.); (G.F.)
| | - Jiayan Wang
- The Ministry of Education Key Lab of Micro/Nano Systems for Aerospace, Northwestern Polytechnical University, Ministry of Education, Xi’an 710072, China; (Y.W.); (J.W.); (Q.X.); (Y.W.); (Z.J.); (G.Z.)
- Shaan’xi Key Lab of MEMS/NEMS, Northwestern Polytechnical University, Xi’an 710072, China
| | - Qi Xi
- The Ministry of Education Key Lab of Micro/Nano Systems for Aerospace, Northwestern Polytechnical University, Ministry of Education, Xi’an 710072, China; (Y.W.); (J.W.); (Q.X.); (Y.W.); (Z.J.); (G.Z.)
- Shaan’xi Key Lab of MEMS/NEMS, Northwestern Polytechnical University, Xi’an 710072, China
| | - Yuanhang Wang
- The Ministry of Education Key Lab of Micro/Nano Systems for Aerospace, Northwestern Polytechnical University, Ministry of Education, Xi’an 710072, China; (Y.W.); (J.W.); (Q.X.); (Y.W.); (Z.J.); (G.Z.)
- Shaan’xi Key Lab of MEMS/NEMS, Northwestern Polytechnical University, Xi’an 710072, China
| | - Ziqiang Jia
- The Ministry of Education Key Lab of Micro/Nano Systems for Aerospace, Northwestern Polytechnical University, Ministry of Education, Xi’an 710072, China; (Y.W.); (J.W.); (Q.X.); (Y.W.); (Z.J.); (G.Z.)
- Shaan’xi Key Lab of MEMS/NEMS, Northwestern Polytechnical University, Xi’an 710072, China
| | - Guhao Zi
- The Ministry of Education Key Lab of Micro/Nano Systems for Aerospace, Northwestern Polytechnical University, Ministry of Education, Xi’an 710072, China; (Y.W.); (J.W.); (Q.X.); (Y.W.); (Z.J.); (G.Z.)
- Shaan’xi Key Lab of MEMS/NEMS, Northwestern Polytechnical University, Xi’an 710072, China
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DelGiorno K, Ma Z, Lytle N, Chen B, Jyotsana N, Weiser Novak S, Cho C, Caplan L, Ben‐Levy O, Neininger A, Burnette D, Trinh V, Tan M, Manor U, Mills J, Goldenring J, Lau K, Wahl G. Metaplasia‐induced Epithelial Heterogeneity Directs Pancreatic Injury and Tumorigenesis. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.0i661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Zhibo Ma
- The Salk Institute for Biological StudiesSan DiegoCA
| | - Nikki Lytle
- The Salk Institute for Biological StudiesSan DiegoCA
| | - Bob Chen
- Vanderbilt UniversityNashvilleTN
| | | | | | | | | | | | | | | | | | - Marcus Tan
- Vanderbilt University Medical CenterNashvilleTN
| | - Uri Manor
- The Salk Institute for Biological StudiesSan DiegoTN
| | | | | | - Ken Lau
- Vanderbilt UniversityNashvilleTN
| | - Geoffrey Wahl
- The Salk Institute for Biological StudiesSan DiegoCA
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Duan XF, He LH, Shang XB, Yue J, Ma Z, Chen CG, Zhang C, Qu DW, Jiang HJ. [Clinical value of routine contrast esophagram in the diagnosis of anastomotic leakage for three-incision esophagectomy with cervical anastomosis]. Zhonghua Wai Ke Za Zhi 2022; 60:461-465. [PMID: 35359088 DOI: 10.3760/cma.j.cn112139-20210908-00427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To examine the clinical value of routine contrast esophagram (RCE) for the diagnosis of anastomotic leakage (AL) after three-incision esophagectomy with cervical anastomosis. Methods: Clinical data of 1 022 patients with esophageal cancer who underwent McKeown three-incision esophagectomy with cervical anastomosis from January 2015 to December 2019 at Department of Minimally Invasive Esophageal Surgery, Tianjin Medical University Cancer Hospital and Institute were analyzed retrospectively. There were 876 males and 146 females, aging(M(IQR)) 48(16) years (range: 36 to 84 years). There were 253 patients (24.8%) with neoadjuvant therapy, and 817 patients (79.9%) with minimally invasive esophagectomy. According to the diagnosis and treatment habits of the attending surgeons, 333 patients were included in the RCE group, and RCE was performed on the 7th day postoperative, while 689 patients were included in the non-RCE group, and RCE was performed when the patients had suspicious symptoms. Taking clinical symptoms, RCE, CT, endoscopy and other methods as reference to the diagnosis of AL, the sensitivity and specificity were used to analyze and evaluate the efficacy of RCE for the diagnosis of AL. The data were compared by U test or χ² test between groups. Results: The incidence rate of AL after three-incision esophagectomy was 7.34% (75/1 022), including 30 cases in the RCE group and 45 cases in the non-RCE group (9.0%(30/333) vs. 6.5%(45/689), χ²=2.027, P=0.155). The diagnostic time of AL was 9(5) days postoperative (range: 4 to 30 days). Among them, 23 cases showed cervical leakages, 50 cases showed intro-thoracic leakages, and 2 cases both cervical and intro-thoracic leakages. The diagnostic time of patients with intro-thoracic leakages was longer than that of cervical leakages (10(4) days vs. 6(3) days, Z=-2.517, P=0.012). Among the 333 patients in the RCE group, 16 cases of RCE indicated leakages including 11 cases of true positive and 5 cases determined to be false positive, while 317 cases indicated no abnormalities including 19 cases developed leakages. The sensitivity and specificity of RCE to detect AL were 36.7%(11/30) and 98.3%(298/333), respectively. The Youden-index was 0.35, and the diagnostic accuracy was 92.8%(309/333). The positive and negative predictive value were 11/16 and 94.0%(298/317), respectively. Conclusions: Routine contrast esophagram after three-incision esophagectomy with cervical anastomosis has low sensitivity and high specificity in the diagnosis of AL. The diagnostic time of AL is the 9th day after surgery. It is necessary to prolong the observation time clinically, and combine RCE with CT, endoscopy and other inspection methods for diagnosis.
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Affiliation(s)
- X F Duan
- Department of Minimally Invasive Esophageal Surgery, Tianjin Medical University Cancer Hospital and Institute, National Clinical Research Center for Cancer, Tianjin Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - L H He
- Department of Cardiothoracic Surgery, the First People's Hospital of Wanzhou District, Chongqing 404100, China
| | - X B Shang
- Department of Minimally Invasive Esophageal Surgery, Tianjin Medical University Cancer Hospital and Institute, National Clinical Research Center for Cancer, Tianjin Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - J Yue
- Department of Minimally Invasive Esophageal Surgery, Tianjin Medical University Cancer Hospital and Institute, National Clinical Research Center for Cancer, Tianjin Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Z Ma
- Department of Minimally Invasive Esophageal Surgery, Tianjin Medical University Cancer Hospital and Institute, National Clinical Research Center for Cancer, Tianjin Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - C G Chen
- Department of Minimally Invasive Esophageal Surgery, Tianjin Medical University Cancer Hospital and Institute, National Clinical Research Center for Cancer, Tianjin Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - C Zhang
- Department of Minimally Invasive Esophageal Surgery, Tianjin Medical University Cancer Hospital and Institute, National Clinical Research Center for Cancer, Tianjin Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - D W Qu
- Department of Minimally Invasive Esophageal Surgery, Tianjin Medical University Cancer Hospital and Institute, National Clinical Research Center for Cancer, Tianjin Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - H J Jiang
- Department of Minimally Invasive Esophageal Surgery, Tianjin Medical University Cancer Hospital and Institute, National Clinical Research Center for Cancer, Tianjin Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
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Ren S, Wang J, Ying J, Mitsudomi T, Lee DH, Wang Z, Chu Q, Mack PC, Cheng Y, Duan J, Fan Y, Han B, Hui Z, Liu A, Liu J, Lu Y, Ma Z, Shi M, Shu Y, Song Q, Song X, Song Y, Wang C, Wang X, Wang Z, Xu Y, Yao Y, Zhang L, Zhao M, Zhu B, Zhang J, Zhou C, Hirsch FR. Corrigendum to 'Consensus for HER2 Alterations Testing in Non-small Cell Lung Cancer': [ESMO Open Volume 7 Issue 1 (2022) 100395]. ESMO Open 2022; 7:100482. [PMID: 35461023 DOI: 10.1016/j.esmoop.2022.100482] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Affiliation(s)
- S Ren
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai
| | - J Wang
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - J Ying
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - T Mitsudomi
- Department of Surgery, Kindai University Faculty of Medicine, Osaka, Japan
| | - D H Lee
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Z Wang
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - Q Chu
- Department of Oncology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - P C Mack
- Center of Thoracic Oncology/Tisch Cancer Institute and Icahn School of Medicine, Mount Sinai, New York, USA
| | - Y Cheng
- Department of Thoracic Oncology, Jilin Cancer Hospital, Changchun, China
| | - J Duan
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - Y Fan
- Department of Medical Oncology, Cancer Hospital of the University of Chinese Academy of Sciences/Zhejiang Cancer Hospital, Hangzhou
| | - B Han
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai
| | - Z Hui
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - A Liu
- Department of Oncology, The Second Affiliated Hospital of Nanchang University, Nanchang
| | - J Liu
- Department of Oncology, The First Affiliated Hospital of Dalian Medical University, Dalian
| | - Y Lu
- Department of Thoracic Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu; Huaxi Student Society of Oncology Research, West China School of Medicine, Sichuan University, Chengdu
| | - Z Ma
- Department of Respiratory Medicine, Affiliated Cancer Hospital of Zhengzhou University/Henan Cancer Hospital, Zhengzhou
| | - M Shi
- Department of Medical Oncology, The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing
| | - Y Shu
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University/Jiangsu Provincial People's Hospital, Nanjing
| | - Q Song
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan
| | - X Song
- Department of Respiration Medicine, Shanxi Provincial Cancer Hospital, Taiyuan
| | - Y Song
- Department of Respiratory Medicine, General Hospital of Eastern Theater Command, Nanjing
| | - C Wang
- Department of Lung Cancer, Lung Cancer Center, Tianjin Medical University Cancer Institute and Hospital, Key Laboratory of Cancer Prevention and Therapy, National Clinical Research Center of Cancer, Tianjin
| | - X Wang
- Department of Oncology, Qilu Hospital of Shandong University, Jinan
| | - Z Wang
- Department of Oncology, Shandong Cancer Hospital and Institute, Jinan
| | - Y Xu
- Department of Radiation Oncology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai
| | - Y Yao
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an
| | - L Zhang
- Department of Medical Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou
| | - M Zhao
- Department of Medical Oncology, The First Hospital of China Medical University, Shenyang
| | - B Zhu
- Department of Oncology, Xinqiao Hospital, The Army Medical University, Chongqing, China
| | - J Zhang
- Division of Medical Oncology, Department of Internal Medicine, University of Kansas Medical Center, Kansas City; Department of Cancer Biology, University of Kansas Cancer Center, University of Kansas Medical Center, Kansas City, USA
| | - C Zhou
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai.
| | - F R Hirsch
- Center of Thoracic Oncology/Tisch Cancer Institute and Icahn School of Medicine, Mount Sinai, New York, USA
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Giampieri A, Ma Z, Ling-Chin J, Roskilly AP, Smallbone AJ. An overview of solutions for airborne viral transmission reduction related to HVAC systems including liquid desiccant air-scrubbing. Energy (Oxf) 2022; 244:122709. [PMID: 34840405 PMCID: PMC8605622 DOI: 10.1016/j.energy.2021.122709] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 11/18/2021] [Accepted: 11/20/2021] [Indexed: 05/31/2023]
Abstract
The spread of the coronavirus SARS-CoV-2 affects the health of people and the economy worldwide. As air transmits the virus, heating, ventilation and air-conditioning (HVAC) systems in buildings, enclosed spaces and public transport play a significant role in limiting the transmission of airborne pathogens at the expenses of increased energy consumption and possibly reduced thermal comfort. On the other hand, liquid desiccant technology could be adopted as an air scrubber to increase indoor air quality and inactivate pathogens through temperature and humidity control, making them less favourable to the growth, proliferation and infectivity of microorganisms. The objectives of this study are to review the role of HVAC in airborne viral transmission, estimate its energy penalty associated with the adoption of HVAC for transmission reduction and understand the potential of liquid desiccant technology. Factors affecting the inactivation of pathogens by liquid desiccant solutions and possible modifications to increase their heat and mass transfer and sanitising characteristics are also described, followed by an economic evaluation. It is concluded that the liquid desiccant technology could be beneficial in buildings (requiring humidity control or moisture removal in particular when viruses are likely to present) or in high-footfall enclosed spaces (during virus outbreaks).
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Key Words
- ASHRAE, American Society of Heating, Refrigerating and Air-Conditioning Engineers
- Airborne viral transmission
- CIBSE, Chartered Institution of Building Services Engineers
- COP, Coefficient of performance
- COVID-19
- COVID-19, Coronavirus disease 19
- CaCl2, Calcium chloride
- Economic analysis
- HCO2K, Potassium formate
- HEPA, High-efficiency particulate air filter
- HVAC energy consumption
- HVAC, Heating, ventilation and air-conditioning
- Humidity control
- IAQ, Indoor air quality
- IBV, Infectious bronchitis virus
- IL, Ionic liquid
- LiBr, Lithium bromide
- LiCl, Lithium chloride
- Liquid desiccant
- MERS-CoV, Middle East respiratory syndrome coronavirus
- MERV, Minimum efficiency reporting value
- PRRSV, Porcine reproductive and respiratory syndrome virus
- REHVA, Federation of European Heating, Ventilation and Air Conditioning Associations
- SARS-CoV-1, Severe acute respiratory syndrome coronavirus 1
- SARS-CoV-2, Severe acute respiratory syndrome coronavirus 2
- TEG, Triethylene glycol
- TGEV, Transmissible gastroenteritis virus
- UVA, Long-wave ultraviolet light
- UVB, Middle-wave ultraviolet light
- UVC, Short-wave ultraviolet light
- UVGI, Ultraviolet germicidal irradiation
- WHO, World Health Organization
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Affiliation(s)
- A Giampieri
- Department of Engineering, Durham University, Durham, DH1 3LE, United Kingdom
| | - Z Ma
- Department of Engineering, Durham University, Durham, DH1 3LE, United Kingdom
| | - J Ling-Chin
- Department of Engineering, Durham University, Durham, DH1 3LE, United Kingdom
| | - A P Roskilly
- Department of Engineering, Durham University, Durham, DH1 3LE, United Kingdom
| | - A J Smallbone
- Department of Engineering, Durham University, Durham, DH1 3LE, United Kingdom
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Lu S, Cheng Y, Zhou J, Wang M, Zhao J, Wang B, Chen G, Feng J, Ma Z, Wu L, Wang C, Ma K, Zhang S, Liang J, Song Y, Wang J, Wu YL, Li A, Huang Y, Chang J. 14P Flat-dose nivolumab (NIVO) as second-line (2L) treatment (tx) in Asian patients (pts) with advanced non-small cell lung cancer (NSCLC): CheckMate 870 long-term results. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.02.023] [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: 11/01/2022] Open
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48
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Zhou Q, Yu X, Gao B, Ma Z, Chu Q, Huang D, Zhao J, Day D, Body A, Pan H, Cui J, Li H, Sun J, Zhang J, Fei C, Wu YL. 2P Sitravatinib + tislelizumab in patients with metastatic non-small cell lung cancer (NSCLC). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.01.064] [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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49
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Ma Z, Lytle NK, Chen B, Jyotsana N, Novak SW, Cho CJ, Caplan L, Ben-Levy O, Neininger AC, Burnette DT, Trinh VQ, Tan MCB, Patterson EA, Arrojo E Drigo R, Giraddi RR, Ramos C, Means AL, Matsumoto I, Manor U, Mills JC, Goldenring JR, Lau KS, Wahl GM, DelGiorno KE. Single-Cell Transcriptomics Reveals a Conserved Metaplasia Program in Pancreatic Injury. Gastroenterology 2022; 162:604-620.e20. [PMID: 34695382 PMCID: PMC8792222 DOI: 10.1053/j.gastro.2021.10.027] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 09/15/2021] [Accepted: 10/09/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Acinar to ductal metaplasia (ADM) occurs in the pancreas in response to tissue injury and is a potential precursor for adenocarcinoma. The goal of these studies was to define the populations arising from ADM, the associated transcriptional changes, and markers of disease progression. METHODS Acinar cells were lineage-traced with enhanced yellow fluorescent protein (EYFP) to follow their fate post-injury. Transcripts of more than 13,000 EYFP+ cells were determined using single-cell RNA sequencing (scRNA-seq). Developmental trajectories were generated. Data were compared with gastric metaplasia, KrasG12D-induced neoplasia, and human pancreatitis. Results were confirmed by immunostaining and electron microscopy. KrasG12D was expressed in injury-induced ADM using several inducible Cre drivers. Surgical specimens of chronic pancreatitis from 15 patients were evaluated by immunostaining. RESULTS scRNA-seq of ADM revealed emergence of a mucin/ductal population resembling gastric pyloric metaplasia. Lineage trajectories suggest that some pyloric metaplasia cells can generate tuft and enteroendocrine cells (EECs). Comparison with KrasG12D-induced ADM identifies populations associated with disease progression. Activation of KrasG12D expression in HNF1B+ or POU2F3+ ADM populations leads to neoplastic transformation and formation of MUC5AC+ gastric-pit-like cells. Human pancreatitis samples also harbor pyloric metaplasia with a similar transcriptional phenotype. CONCLUSIONS Under conditions of chronic injury, acinar cells undergo a pyloric-type metaplasia to mucinous progenitor-like populations, which seed disparate tuft cell and EEC lineages. ADM-derived EEC subtypes are diverse. KrasG12D expression is sufficient to drive neoplasia when targeted to injury-induced ADM populations and offers an alternative origin for tumorigenesis. This program is conserved in human pancreatitis, providing insight into early events in pancreas diseases.
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Affiliation(s)
- Zhibo Ma
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, California
| | - Nikki K Lytle
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, California
| | - Bob Chen
- Program in Chemical and Physical Biology, Vanderbilt University School of Medicine, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Nidhi Jyotsana
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee
| | - Sammy Weiser Novak
- Waitt Advanced Biophotonics Center, Salk Insitute for Biological Studies, La Jolla, California
| | - Charles J Cho
- Section of Gastroenterology and Hepatology, Baylor College of Medicine, Houston, Texas
| | - Leah Caplan
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee
| | - Olivia Ben-Levy
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee
| | - Abigail C Neininger
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee
| | - Dylan T Burnette
- Epithelial Biology Center, Vanderbilt University School of Medicine, Nashville, Tennessee; Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee; Vanderbilt Ingram Cancer Center, Nashville, Tennessee
| | - Vincent Q Trinh
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Marcus C B Tan
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee; Vanderbilt Digestive Disease Research Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Emilee A Patterson
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, Tennessee
| | - Rafael Arrojo E Drigo
- Epithelial Biology Center, Vanderbilt University School of Medicine, Nashville, Tennessee; Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, Tennessee
| | - Rajshekhar R Giraddi
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, California
| | - Cynthia Ramos
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, California
| | - Anna L Means
- Vanderbilt Ingram Cancer Center, Nashville, Tennessee; Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee; Vanderbilt Digestive Disease Research Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | | | - Uri Manor
- Waitt Advanced Biophotonics Center, Salk Insitute for Biological Studies, La Jolla, California
| | - Jason C Mills
- Section of Gastroenterology and Hepatology, Baylor College of Medicine, Houston, Texas
| | - James R Goldenring
- Epithelial Biology Center, Vanderbilt University School of Medicine, Nashville, Tennessee; Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee; Vanderbilt Ingram Cancer Center, Nashville, Tennessee; Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee; Vanderbilt Digestive Disease Research Center, Vanderbilt University Medical Center, Nashville, Tennessee; Nashville VA Medical Center, Nashville, Tennessee
| | - Ken S Lau
- Epithelial Biology Center, Vanderbilt University School of Medicine, Nashville, Tennessee; Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee; Vanderbilt Ingram Cancer Center, Nashville, Tennessee; Vanderbilt Digestive Disease Research Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Geoffrey M Wahl
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, California
| | - Kathleen E DelGiorno
- Epithelial Biology Center, Vanderbilt University School of Medicine, Nashville, Tennessee; Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee; Vanderbilt Ingram Cancer Center, Nashville, Tennessee; Vanderbilt Digestive Disease Research Center, Vanderbilt University Medical Center, Nashville, Tennessee.
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50
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Duan ZJ, Yao K, Ma Z, Hu ZJ, Xiang L, Qi XL. [Pediatric SMARCB1/INI1-deficient poorly differentiated chordoma of the skull base: report of five cases and review of literature]. Zhonghua Bing Li Xue Za Zhi 2022; 51:33-38. [PMID: 34979751 DOI: 10.3760/cma.j.cn112151-20210705-00482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To investigate the clinicopathological characteristics and differential diagnosis of pediatric SMARCB1/INI1-deficient poorly differentiated chordoma (PDC) of the skull base. Methods: Five cases of SMARCB1/INI1-deficient PDC were identified in 139 cases of chordoma diagnosed in Sanbo Brain Institute, Capital Medical University, Beijing, China from March 2017 to March 2021. The clinical and imaging data of the 5 PDCs were collected. H&E and immunohistochemical staining, and DNA methylation array were used, and the relevant literatures were reviewed. Results: All 5 PDCs were located at the clivus. The average age of the patients was 6.4 years, ranging from 3 to 16 years. Three patients were female and two were male. Morphologically, in contrast with classical chordomas, they presented as epithelioid or spindle tumor cells organized in sheets or nests, with necrosis, active mitoses, and infiltration into surrounding tissue. All cases showed positivity of CKpan, EMA, vimentin and brachyury (nuclear stain), and loss of nuclear SMARCB1/INI1 expression. S-100 protein expression was not frequent (2/5). Ki-67 proliferative index was high (20%-50%). All cases had over-expressed p53. It was necessary to differentiate SMARCB1/INI1-dificient PDC from SMARCB1/INI1-dificient tumors occurring at skull base of children or the tumors with epithelial and spindle cell morphological features. The 3 PDCs with DNA methylation testing showed the methylation profiles different from the pediatric atypical teratoid/rhabdoid tumors. They formed an independent methylation profile cluster. The clinical prognosis of the 5 patients was poor, and the overall survival time was 2-17 months. Conclusions: PDC is a special subtype of chordoma, which often affects children and occurs in the clivus. The PDC shares epithelioid or spindle cell morphologic features which are different from the classic chordoma. Besides the typical immunohistochemical profile of chordoma, PDC also has loss of nuclear SMARCB1/INI1 expression and distinct epigenetic characteristics.
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Affiliation(s)
- Z J Duan
- Department of Pathology, Sanbo Brain Institute, Capital Medical University, Beijing 100093, China
| | - K Yao
- Department of Pathology, Sanbo Brain Institute, Capital Medical University, Beijing 100093, China
| | - Z Ma
- Department of Pathology, Sanbo Brain Institute, Capital Medical University, Beijing 100093, China
| | - Z J Hu
- Department of Pathology, Sanbo Brain Institute, Capital Medical University, Beijing 100093, China
| | - L Xiang
- Department of Pathology, Sanbo Brain Institute, Capital Medical University, Beijing 100093, China
| | - X L Qi
- Department of Pathology, Sanbo Brain Institute, Capital Medical University, Beijing 100093, China
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