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Jiang S, Jin X, Liu Z, Xu R, Hou C, Zhang F, Fan C, Wu H, Chen T, Shi J, Hu Z, Wang G, Teng S, Li L, Li Y. Natural variation in SSW1 coordinates seed growth and nitrogen use efficiency in Arabidopsis. Cell Rep 2024; 43:114150. [PMID: 38678565 DOI: 10.1016/j.celrep.2024.114150] [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: 11/02/2023] [Revised: 03/02/2024] [Accepted: 04/09/2024] [Indexed: 05/01/2024] Open
Abstract
Seed size is controlled not only by intrinsic genetic factors but also by external environmental signals. Here, we report a major quantitative trait locus (QTL) gene for seed size and weight on chromosome 1 (SSW1) in Arabidopsis, and we found SSW1 acts maternally to positively regulate seed size. Natural variation in SSW1 contains three types of alleles. The SSW1Cvi allele produces larger seeds with more amino acid and storage protein contents than the SSW1Ler allele. SSW1Cvi displays higher capacity for amino acid transport than SSW1Ler due to the differences in transport efficiency. Under low nitrogen supply, the SSW1Cvi allele exhibits increased seed yield and nitrogen use efficiency (NUE). Locations of natural variation alleles of SSW1 are associated with local soil nitrogen contents, suggesting that SSW1 might contribute to geographical adaptation in Arabidopsis. Thus, our findings reveal a mechanism that coordinates seed growth and NUE, suggesting a potential target for improving seed yield and NUE in crops.
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Affiliation(s)
- Shan Jiang
- Key Laboratory of Seed Innovation, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Ximing Jin
- Key Laboratory of Seed Innovation, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Zebin Liu
- College of Life Sciences, Capital Normal University, Beijing 100048, China
| | - Ran Xu
- Key Laboratory of Seed Innovation, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Congcong Hou
- College of Life Sciences, Capital Normal University, Beijing 100048, China
| | - Fengxia Zhang
- Key Laboratory of Seed Innovation, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Chengming Fan
- Key Laboratory of Seed Innovation, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Huilan Wu
- Key Laboratory of Seed Innovation, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Tianyan Chen
- Key Laboratory of Seed Innovation, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; College of Life Sciences, Yunnan University, Kunming 650500, China
| | - Jianghua Shi
- Institute of Crop and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Science, Hangzhou 310021, China
| | - Zanmin Hu
- Key Laboratory of Seed Innovation, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Guodong Wang
- Key Laboratory of Seed Innovation, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100039, China
| | - Sheng Teng
- Laboratory of Photosynthesis and Environmental Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Legong Li
- College of Life Sciences, Capital Normal University, Beijing 100048, China
| | - Yunhai Li
- Key Laboratory of Seed Innovation, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100039, China.
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Liao Z, Teng J, Li T, Liu H, Li T, Zhang C, Xing R, Teng S, Yang Y, Zhao J, Xiao W, Zhang G, Li MJ, Yao W, Yang J. Evaluation of the efficacy and safety of immunotherapy in sarcoma: a two-center study. Front Immunol 2024; 15:1292325. [PMID: 38585276 PMCID: PMC10995229 DOI: 10.3389/fimmu.2024.1292325] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 02/21/2024] [Indexed: 04/09/2024] Open
Abstract
Background Sarcoma is a highly heterogeneous malignancy with a poor prognosis. Although chemotherapy and targeted therapy have improved the prognosis to some extent, the efficacy remains unsatisfactory in some patients. The efficacy and safety of immunotherapy in sarcoma need further evaluation. Methods We conducted a two-center study of sarcoma patients receiving PD-1 immunotherapy at Tianjin Medical University Cancer Institute and Hospital and Henan Provincial Cancer Hospital. The treatment regimens included PD-1 inhibitor monotherapy and combination therapy based on PD-1 inhibitors. The observed primary endpoints were median progression-free survival (mPFS) and median overall survival (mOS). Survival curves were compared using the Kaplan-Meier method. Results A total of 43 patients were included from the two centers. The median follow-up time for all patients was 13 months (range, 1-48 months). In the group of 37 patients with advanced or unresectable sarcoma, the mPFS was 6 months (95%CI: 5-12 months), and the mOS was 16 months (95%CI: 10-28 months). The ORR was 10.8% (4/37), and the DCR was 18.9% (7/37). Subgroup analysis showed no significant differences in mPFS (p=0.11) and mOS (p=0.88) between patients with PD-L1 negative/positive expression. There were also no significant differences in mPFS (p=0.13) or mOS (p=0.72) between PD-1 inhibitor monotherapy and combination therapy. Additionally, there were no significant differences in mPFS (p=0.52) or mOS (p=0.49) between osteogenic sarcoma and soft tissue sarcoma. Furthermore, the results showed no significant differences in mPFS (p=0.66) or mOS (p=0.96) between PD-1 inhibitors combined with targeted therapy and PD-1 inhibitors combined with AI chemotherapy. Among the 6 patients receiving adjuvant therapy after surgery, the mPFS was 15 months (95%CI: 6-NA months), and the mOS was not reached. In terms of safety, most adverse events were mild (grade 1-2) and manageable. The most severe grade 4 adverse events were bone marrow suppression, which occurred in 4 patients but resolved after treatment. There was also one case of a grade 4 adverse event related to hypertension. Conclusion Immunotherapy is an effective treatment modality for sarcoma with manageable safety. Further inclusion of more patients or prospective clinical trials is needed to validate these findings.
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Affiliation(s)
- Zhichao Liao
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
- National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Jianjin Teng
- Department of Bioinformatics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Tao Li
- Department of Bone and Soft-Tissue Tumor, Institute of Cancer and Basic Medicine, Chinese Academy of Sciences, Cancer Hospital of the University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - Haotian Liu
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
- National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Ting Li
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
- National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Chao Zhang
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
- National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Ruwei Xing
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
- National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Sheng Teng
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
- National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Yun Yang
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
- National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Jun Zhao
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
- National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Wanyi Xiao
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
- National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Gengpu Zhang
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
- National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Mulin Jun Li
- Department of Bioinformatics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Weitao Yao
- Department of Bone and Soft Tissue Cancer, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou, China
| | - Jilong Yang
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
- National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
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Zhang YW, Li JH, Teng S, Peng ZQ, Jamali MA. Quality improvement of prerigor salted ground chicken breast with basic amino acids at low NaCl level. Poult Sci 2023; 102:102871. [PMID: 37406440 PMCID: PMC10466239 DOI: 10.1016/j.psj.2023.102871] [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: 02/26/2023] [Revised: 06/09/2023] [Accepted: 06/09/2023] [Indexed: 07/07/2023] Open
Abstract
The prerigor salting effect is known to provide superior meat processing quality. Based on the urgent need for low salt meat products, the present study was undertaken to evaluate the prerigor salting effect when basic amino acids were introduced at 1% NaCl level. Ground chicken breast meat was salted with NaCl and basic amino acids at 30 min, 60 min, and 90 min postmortem for prerigor treatments. Compared to the 1% NaCl (w/w) treatment, the introduction of 0.06% basic amino acids (w/w) in the prerigor significantly led to an increase in myofibril fragmentation, myofibrillar protein solubility, emulsion activity, storage modulus change rate, gel water-holding capacity and hardness (P < 0.05). Furthermore, smaller and more uniformly sized droplets were produced in emulsion by basic amino acids. Individual basic amino acids had different prerigor salting effects, and it was indicated that basic amino acids could play a positive role in the prerigor salting effect when NaCl was reduced.
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Affiliation(s)
- Y W Zhang
- College of Food Science and Technology, National Center of Meat Quality and Safety Control, Nanjing Agricultural University, Nanjing 210095, China.
| | - J H Li
- College of Food Science and Technology, National Center of Meat Quality and Safety Control, Nanjing Agricultural University, Nanjing 210095, China
| | - S Teng
- College of Food Science and Technology, National Center of Meat Quality and Safety Control, Nanjing Agricultural University, Nanjing 210095, China
| | - Z Q Peng
- College of Food Science and Technology, National Center of Meat Quality and Safety Control, Nanjing Agricultural University, Nanjing 210095, China
| | - M A Jamali
- Department of Animal Products Technology, Sindh Agriculture University, Tandojam 70060, Pakistan
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4
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Glenn K, He J, Rochlin R, Teng S, Hecker JG, Novosselov I. Assessment of aerosol persistence in ICUs via low-cost sensor network and zonal models. Sci Rep 2023; 13:3992. [PMID: 36899063 PMCID: PMC10006437 DOI: 10.1038/s41598-023-30778-7] [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: 11/19/2022] [Accepted: 03/01/2023] [Indexed: 03/12/2023] Open
Abstract
The COVID-19 pandemic raised public awareness about airborne particulate matter (PM) due to the spread of infectious diseases via the respiratory route. The persistence of potentially infectious aerosols in public spaces and the spread of nosocomial infections in medical settings deserve careful investigation; however, a systematic approach characterizing the fate of aerosols in clinical environments has not been reported. This paper presents a methodology for mapping aerosol propagation using a low-cost PM sensor network in ICU and adjacent environments and the subsequent development of the data-driven zonal model. Mimicking aerosol generation by a patient, we generated trace NaCl aerosols and monitored their propagation in the environment. In positive (closed door) and neutral-pressure (open door) ICUs, up to 6% or 19%, respectively, of all PM escaped through the door gaps; however, the outside sensors did not register an aerosol spike in negative-pressure ICUs. The K-means clustering analysis of temporospatial aerosol concentration data suggests that ICU can be represented by three distinct zones: (1) near the aerosol source, (2) room periphery, and (3) outside the room. The data suggests two-phase plume behavior: dispersion of the original aerosol spike throughout the room, followed by an evacuation phase where "well-mixed" aerosol concentration decayed uniformly. Decay rates were calculated for positive, neutral, and negative pressure operations, with negative-pressure rooms clearing out nearly twice as fast. These decay trends closely followed the air exchange rates. This research demonstrates the methodology for aerosol monitoring in medical settings. This study is limited by a relatively small data set and is specific to single-occupancy ICU rooms. Future work needs to evaluate medical settings with high risks of infectious disease transmission.
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Affiliation(s)
- K Glenn
- Department of Mechanical Engineering, University of Washington, Seattle, USA
| | - J He
- Department of Mechanical Engineering, University of Washington, Seattle, USA
| | - R Rochlin
- Department of Mechanical Engineering, University of Washington, Seattle, USA
| | - S Teng
- Department of Mechanical Engineering, University of Washington, Seattle, USA
| | - J G Hecker
- Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, USA
| | - I Novosselov
- Department of Mechanical Engineering, University of Washington, Seattle, USA.
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5
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Yang S, Liao Z, Li T, Liu H, Ren Z, Wu H, Zhao J, Teng S, Xing R, Yang Y, Yang J. Clinicopathologic features, prognostic factors, and outcomes of visceral sarcomas: A retrospective 12-year single-center study. Front Oncol 2022; 12:1029913. [DOI: 10.3389/fonc.2022.1029913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 10/17/2022] [Indexed: 11/09/2022] Open
Abstract
BackgroundVisceral sarcomas are a rare form of soft tissue sarcoma. This study aimed to evaluate the survival and prognostic factors and effective treatments for visceral sarcomas.MethodsAll patients with visceral sarcoma referred to our center between January 2010 and December 2021 were retrospectively analyzed. The Kaplan-Meier method and a log-rank test were used for survival analysis.ResultsA total of 53 patients with visceral sarcoma were analyzed in this study with the median age at diagnosis of 57 (range, 24-77) years. Among them, 37 (69.8%) and 16 (30.2%) patients had localized and metastatic diseases at the initial presentation, respectively, and 44 patients underwent surgical resection. The median follow-up, event-free survival (EFS) and overall survival (OS) were 63.0 (range, 2-130), 42.0 months (95% confidence interval [CI] 10.879-73.121) and 45.0 months (95% CI 9.938-80.062), respectively. The 5-year EFS and OS rates were 44% and 46%, respectively. Univariate analysis of prognostic indicators illustrated that metastasis at presentation, surgery, surgical margin and the types of surgery were significantly associated with OS and EFS. In this study, combined chemotherapy or radiotherapy had no effects on EFS and OS.ConclusionPrimary visceral sarcoma is an uncommon and aggressive malignant tumor with a higher rate of local recurrence. In the largest cohort of visceral sarcomas in China to date, we identified metastases at presentation, surgery, surgical margin, and the types of surgery as independent predictors of survival. The combination of chemotherapy and radiotherapy did not affect survival.
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Liu X, Jiang H, Yang J, Han J, Jin M, Zhang H, Chen L, Chen S, Teng S. Comprehensive QTL analyses of nitrogen use efficiency in indica rice. Front Plant Sci 2022; 13:992225. [PMID: 36212385 PMCID: PMC9539535 DOI: 10.3389/fpls.2022.992225] [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] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 08/29/2022] [Indexed: 06/16/2023]
Abstract
Nitrogen-use efficiency (NUE) in rice is a complex quantitative trait involved in multiple biological processes and agronomic traits; however, the genetic basis and regulatory network of NUE remain largely unknown. We constructed a high-resolution microarray-based genetic map for 261 recombinant inbred lines derived from two indica parents. Using 2,345 bin markers, comprehensive analyses of quantitative trait loci (QTLs) of seven key agronomic traits under two different N levels were performed. A total of 11 non-redundant QTLs for effective panicle number (EPN), 7 for grain number per panicle, 13 for thousand-grain weight, 2 for seed-setting percentage, 15 for plant height, 12 for panicle length, and 6 for grain yield per plant were identified. The QTL regions were as small as 512 kb on average, and more than half spanned an interval smaller than 100 kb. Using this advantage, we identified possible candidate genes of two major EPN-related QTLs. One QTL detected under both N levels possibly encodes a DELLA protein SLR1, which is known to regulate NUE, although the natural variations of this protein have not been reported. The other QTL detected only under a high N level could encode the transcription factor OsbZIP59. We also predicted the possible candidate genes for another three of the NUE-related QTLs. Our results provide a reference for improving NUE-related QTL cloning and promote our understanding of NUE regulation in indica rice.
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Affiliation(s)
- Xiuyan Liu
- College of Material and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, China
- Laboratory of Photosynthesis and Environmental Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
| | - Hong Jiang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Jiangsu Collaborative Innovation Center for Modern Crop Production, Jiangsu Province Engineering Research Center of Seed Industry Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Jing Yang
- Laboratory of Photosynthesis and Environmental Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
| | - Jiajia Han
- Laboratory of Photosynthesis and Environmental Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
| | - Mengxian Jin
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Jiangsu Collaborative Innovation Center for Modern Crop Production, Jiangsu Province Engineering Research Center of Seed Industry Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Hongsheng Zhang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Jiangsu Collaborative Innovation Center for Modern Crop Production, Jiangsu Province Engineering Research Center of Seed Industry Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Liang Chen
- Shanghai Agrobiological Gene Center, Shanghai, China
| | - Sunlu Chen
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Jiangsu Collaborative Innovation Center for Modern Crop Production, Jiangsu Province Engineering Research Center of Seed Industry Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Sheng Teng
- Laboratory of Photosynthesis and Environmental Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
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Hecker JG, He J, Rochlin R, Brannen C, Teng S, Glenn K, Novosselov I. Measuring aerosols in the operating theatre and beyond using a real-time sensor network. Anaesthesia 2022; 77:1097-1105. [PMID: 36047649 DOI: 10.1111/anae.15842] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/02/2022] [Indexed: 11/27/2022]
Abstract
The ability to measure and track aerosols in the vicinity of patients with suspected or confirmed COVID-19 is highly desirable. At present, there is no way to measure and track, in real time, the sizes, dispersion and dilution/disappearance of aerosols that are generated by airway manipulations such as mask ventilation; tracheal intubation; bronchoscopy; dental and gastro-intestinal endoscopy procedures; or by vigorous breathing, coughing or exercise. We deployed low-cost photoelectric sensors in five operating theatres between surgical cases. We measured and analysed dilution and exfiltration of aerosols we generated to evaluate air handling and dispersion under real-world conditions. These data were used to develop a model of aerosol persistence. We found significant variation between different operating theatres. Equipment placement near air vents affects air flows, impacting aerosol movement and elimination patterns. Despite these impediments, air exchange in operating theatres is robust and prolonged fallow time before theatre turnover may not be necessary. Significant concentrations of aerosols are not seen in adjoining areas outside of the operating theatre. These models and dispersion rates can predict aerosol persistence in operating theatres and other clinical areas and potentially facilitate quantification of risk, with obvious and far-reaching implications for designing, evaluating and confirming air handling in non-medical environments.
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Affiliation(s)
- J G Hecker
- Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, WA, USA
| | - J He
- Department of Mechanical Engineering, University of Washington, Seattle, WA, USA
| | - R Rochlin
- Department of Mechanical Engineering, University of Washington, Seattle, WA, USA
| | - C Brannen
- Peri-operative Services, Department of Nursing, University of Washington, Seattle, WA, USA
| | - S Teng
- Department of Mechanical Engineering, University of Washington, Seattle, WA, USA
| | - K Glenn
- Department of Mechanical Engineering, University of Washington, Seattle, WA, USA
| | - I Novosselov
- Department of Mechanical Engineering, University of Washington, Seattle, WA, USA
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Liao Z, Zhang C, Yang T, Liu H, Yang S, Li T, Xing R, Teng S, Yang Y, Zhao J, Zhao G, Bai X, Zhu L, Yang J. Chemotherapy Combined With Recombinant Human Endostatin (Endostar) Significantly Improves the Progression-Free Survival of Stage IV Soft Tissue Sarcomas. Front Oncol 2022; 11:778774. [PMID: 35047396 PMCID: PMC8761904 DOI: 10.3389/fonc.2021.778774] [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: 09/21/2021] [Accepted: 12/08/2021] [Indexed: 11/13/2022] Open
Abstract
Purpose Our previously study showed that recombinant human endostatin (Endostar) combined with chemotherapy had significant activity to increase the mPFS in patients with advanced sarcomas with tolerable side effects. However, the small cohort size and short follow-up time made it difficult to screen sensitive sarcoma subtypes and determine whether there is an overall survival benefit. With the largest sarcoma cohort to our knowledge, we try to confirm the efficacy and safety of chemotherapy combined with Endostar in stage IV sarcomas, with the specific purpose of finding out the sensitive sarcoma types for this combined treatment. Methods After the exclusion of ineligible patients, 156 patients with stage IV bone and soft tissue sarcomas were included in this study according to the inclusion criteria. Results By the end of follow-up, the ORR was 10.7% (9/84) vs 1.4% (1/72) (p=0.041), the DCR was 26.2% (22/84) vs 5.6% (4/72) (p=0.001) in the combined group and chemotherapy group, respectively. The mPFS of combined group was significantly longer than the chemotherapy group (10.42 vs 6.87 months, p=0.003). The mOS were 26.84 months and 23.56 months, without significant difference (p= 0.481). In osteogenic sarcoma, there was no statistically significant difference in the mPFS between the two groups (p=0.59), while in the soft tissue sarcoma, the mPFS in the combined group was significantly higher than that of the chemotherapy group (11.27 vs 8.05 months, p=0.004). Specifically, undifferentiated polymorphic sarcoma (UPS) was the possible sarcoma subtypes that benefited from the combined therapy. For the 38 UPS patients (28 patients in the combined group and 10 patients in the chemotherapy group), the mPFS in the combined group was up to 14.88 months, while it was only 7.1 months in the chemotherapy group, with a significant difference (p=0.006). The most common adverse events in the combined group were myelosuppression, gastrointestinal reactions and abnormal liver function, without significant difference in two groups. Conclusion Chemotherapy plus Endostar could prolong mPFS and improve ORR and DCR in patients with stage IV soft tissue sarcoma, suggesting that the combined therapy could improve the patient prognosis in soft tissue sarcomas, especially the UPS patients.
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Affiliation(s)
- Zhichao Liao
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Chao Zhang
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Tielong Yang
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Haotian Liu
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Songwei Yang
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,Departments of Bone and Soft Tissue Tumor, Chongqing University Cancer Hospital, Chongqing, China
| | - Ting Li
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Ruwei Xing
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Sheng Teng
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Yun Yang
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Jun Zhao
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Gang Zhao
- National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,Department of Pathology, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Xu Bai
- National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,Department of Radiology, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Lei Zhu
- National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,Department of Molecular Imaging and Nuclear Medicine, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Jilong Yang
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
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Lu J, Li T, Liao Z, Yu H, Zhao Y, Wu H, Ren Z, Zhao J, Xing R, Teng S, Yang Y, Li X, Chen K, Trent J, Yang J. The efficacies and biomarker investigations of antiprogrammed death-1 (anti-PD-1)-based therapies for metastatic bone and soft tissue sarcoma. Cancer Biol Med 2021; 19:j.issn.2095-3941.2021.0270. [PMID: 34817950 PMCID: PMC9257312 DOI: 10.20892/j.issn.2095-3941.2021.0270] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
OBJECTIVE Sarcomas are a group of rare malignancies with various subtypes. Patients with metastatic sarcoma who have failed traditional treatments can possibly achieve better prognoses from using novel therapies, including anti-programmed death-1 (PD-1)-based therapies. METHODS We retrospectively analyzed clinical data of 24 metastatic sarcoma patients from June 15, 2016 to December 30, 2019. These patients mainly received angiogenesis inhibitors combined with anti-PD-1 therapy after they became resistant to traditional treatments. Furthermore, 8 patients underwent panel DNA and whole transcript sequencing. RESULTS Six patients received 2 cycles of anti-PD-1 therapy and were included in the safety evaluation only group. The median follow-up time was 5.77 months. The median progression-free survival was 7.59 months, the overall response rate was 16.7% and the disease control rate was 55.6%. Based on whole exome and transcript sequencing data, there was no association between TMB, TNB, MSI, HLA-LOH, and PD-L1 expressions and sarcoma types with clinical responses. Immunotherapy efficacy and bioinformatics analyses indicated higher intratumoral heterogeneity (ITH) in progressive disease (PD) patients and lower ITH in partial response (PR) and stable disease patients. A higher percentage of immune cell infiltration, especially monocytes, was observed in PR patients. Active stromal gene expression was increased in PD patients but decreased in PR patients. Enrichment analysis revealed that an increased TGF-β signaling pathway was reversely correlated with anti-PD-1 efficacy, while a decreased inflammatory response signaling pathway was positively correlated with anti-PD-1 efficacy. CONCLUSIONS Our study showed PD-1 inhibitors combined with anti-angiogenesis agents were effective and well-tolerated. ITH, monocyte ratio, stroma subtypes, and the status of immune-associated signaling pathways may be related with anti-PD-1 based therapy.
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Affiliation(s)
- Jia Lu
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China.,Department of Infection Management, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China.,Key Laboratory of Molecular Cancer Epidemiology, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Ting Li
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China.,Key Laboratory of Molecular Cancer Epidemiology, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Zhichao Liao
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China.,Key Laboratory of Molecular Cancer Epidemiology, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Hui Yu
- YuceBio Technology Co., Ltd., Shenzhen 518172, China
| | - Yongtian Zhao
- YuceBio Technology Co., Ltd., Shenzhen 518172, China
| | - Haixiao Wu
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Zhiwu Ren
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Jun Zhao
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Ruwei Xing
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Sheng Teng
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Yun Yang
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Xiangchun Li
- Key Laboratory of Molecular Cancer Epidemiology, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China.,Department of Epidemiology and Biostatistics, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Kexin Chen
- Key Laboratory of Molecular Cancer Epidemiology, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China.,Department of Epidemiology and Biostatistics, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Jonathan Trent
- Sarcoma Multidisciplinary Program, Sylvester Comprehensive Cancer Center, The University of Miami, Miami, FL 33136, USA
| | - Jilong Yang
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China.,Key Laboratory of Molecular Cancer Epidemiology, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
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10
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Teng S, Yang Y, Zhang J, You X, Guo T, Zhang Q, Duan Q, Qi C. Different genomic profiling of sarcoma between Western and Chinese population. J Clin Oncol 2021. [DOI: 10.1200/jco.2021.39.15_suppl.e23532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e23532 Background: Sarcomas are a broad family of mesenchymal malignancies exhibiting remarkable histologic diversity. The clinical presentation and gene mutations in different subtypes are often atypical, and the profile of gene mutations vary widely. Meanwhile there are many genetic mutations difference between West countries patients and Chinese patients in many cancer types, however little is known about soft tissue tumors' difference. Methods: Next-generation sequencing data and clinical data were collected from 255 Western soft-tissue sarcoma patients (TCGA cohort). A 539-gene panel targeted sequencing assay was performed on FFPE tumor samples from 271 Chinese soft-tissue sarcoma patients (Chinese cohort). Both somatic mutations and germline mutations were detected on the Chinese cohort, then we compared the somatic mutations between TCGA and Chinese cohort. Results: In Chinese cohort, top 5 mutant genes were TP53(35.69%), ATRX(14.12%), MUC16(12.94%), RB1(10.98%), CSMD1(8.24%); while in TCGA cohort were TP53(22.88%), MUC16(8.12%), RB1(6.27%), TERT(5.17%), NF1(4.80%). The mutation frequency of 7 genes were higher in TCGA cohort than in Chinese cohort: TP53(35.69% vs 22.88%, p = 0.0015), ATRX(14.12% vs 4.06%, p < 0.001), CSMD1(8.24% vs 1.85%, p < 0.001), LRP1B(6.27% vs 2.21%, p < 0.05), CSMD3(3.92% vs 1.11%, p < 0.05), EPHA7(3.92% vs 0.74%, p < 0.05) and PIK3C2G(3.53% vs 0.37%, p = 0.009). However, TERT showed the opposite, which in TCGA cohort(1.57%) was lower than Chinese cohort(5.17%)(p < 0.05). Meanwhile, we detected the germline mutations in Chinese cohort. There are three patients had BRCA1 mutations, the SLX4, TP53, MUTYH, ATM, ERCC3 and NBN were all only happened once. There were 21 patients from Chinese cohort had EWSR1-X fusions, including EWSR1-ERG(6/21, 28%), EWSR1-FLI1(6/21,28%), EWSR1-ATF1(4/21,19%), EWSR1-CREB1(1/21,5%), EWSR1-DCTN2 (1/21, 5%), EWSR1-POU5F1(1/21, 5%), EWSR1-WT1(1/21, 5%).Besides, we discovered a novel fusion gene EWSR1-DDIT3(1/21, 5%) in Chinese cohort. Conclusions: We described the general landscape and differences of genetic variation in Chinese and Western populations, we also discovered some new mutations such as novel fusion.In conclusion, comprehensive genomic profiling in a large cohort highlights the promise of targeted therapies.
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Affiliation(s)
- Sheng Teng
- Tianjin Medical University Cancer Institute & Hospital, Tianjin, China
| | - Yun Yang
- Tianjin Medical University Cancer Institute & Hospital, Tianjin, China
| | - Jin Zhang
- Tianjin Medical University Cancer Institute & Hospital, Tianjin, China
| | - Xia You
- The Medical Department, Jiangsu Simcere Diagnostics Co., Ltd, Nanjing Simcere Medical Laboratory Science Co., Ltd, The State Key Lab of Translational Medicine and Innovative Drug Development, Jiangsu Simcere Diagnostics Co., Ltd, Nanjing, China
| | - Taiyan Guo
- The Medical Department, Jiangsu Simcere Diagnostics Co., Ltd, Nanjing Simcere Medical Laboratory Science Co., Ltd, The State Key Lab of Translational Medicine and Innovative Drug Development, Jiangsu Simcere Diagnostics Co., Ltd, Nanjing, China
| | - Qin Zhang
- The Medical Department, Jiangsu Simcere Diagnostics Co., Ltd, Nanjing Simcere Medical Laboratory Science Co., Ltd, The State Key Lab of Translational Medicine and Innovative Drug Development, Jiangsu Simcere Diagnostics Co., Ltd, Nanjing, China
| | - Qianqian Duan
- The Medical Department, Jiangsu Simcere Diagnostics Co., Ltd, Nanjing Simcere Medical Laboratory Science Co., Ltd, The State Key Lab of Translational Medicine and Innovative Drug Development, Jiangsu Simcere Diagnostics Co., Ltd, Nanjing, China
| | - Chuang Qi
- The Medical Department, Jiangsu Simcere Diagnostics Co., Ltd, Nanjing Simcere Medical Laboratory Science Co., Ltd, The State Key Lab of Translational Medicine and Innovative Drug Development, Jiangsu Simcere Diagnostics Co., Ltd, Nanjing, China
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11
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Sun A, Yu B, Zhang Q, Peng Y, Yang J, Sun Y, Qin P, Jia T, Smeekens S, Teng S. MYC2-Activated TRICHOME BIREFRINGENCE-LIKE37 Acetylates Cell Walls and Enhances Herbivore Resistance. Plant Physiol 2020; 184:1083-1096. [PMID: 32732351 PMCID: PMC7536677 DOI: 10.1104/pp.20.00683] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 07/20/2020] [Indexed: 05/08/2023]
Abstract
O-Acetylation of polysaccharides predominantly modifies plant cell walls by changing the physicochemical properties and, consequently, the structure and function of the cell wall. Expression regulation and specific function of cell wall-acetylating enzymes remain to be fully understood. In this report, we cloned a previously identified stunted growth mutant named sucrose uncoupled1 (sun1) in Arabidopsis (Arabidopsis thaliana). SUN1 encodes a member of the TRICHOME BIREFRINGEN-LIKE family, AtTBL37 AtTBL37 is highly expressed in fast-growing plant tissues and encodes a Golgi apparatus-localized protein that regulates secondary cell wall thickening and acetylation. In sun1, jasmonate signaling and expression of downstream chemical defense genes, including VEGETATIVE STORAGE PROTEIN1 and BRANCHED-CHAIN AMINOTRANSFERASE4, are increased but, unexpectedly, sun1 is more susceptible to insect feeding. The central transcription factor in jasmonate signaling, MYC2, binds to and induces AtTBL37 expression. MYC2 also promotes the expression of many other TBLs Moreover, MYC activity enhances cell wall acetylation. Overexpression of AtTBL37 in the myc2-2 background reduces herbivore feeding. Our study highlights the role of O-acetylation in controlling plant cell wall properties, plant development, and herbivore defense.
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Affiliation(s)
- Aiqing Sun
- Laboratory of Photosynthesis and Environmental Biology, Chinese Academy of Sciences Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Bo Yu
- Laboratory of Photosynthesis and Environmental Biology, Chinese Academy of Sciences Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Qian Zhang
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yu Peng
- Laboratory of Photosynthesis and Environmental Biology, Chinese Academy of Sciences Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Jing Yang
- Laboratory of Photosynthesis and Environmental Biology, Chinese Academy of Sciences Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yonghua Sun
- Laboratory of Photosynthesis and Environmental Biology, Chinese Academy of Sciences Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Ping Qin
- Laboratory of Photosynthesis and Environmental Biology, Chinese Academy of Sciences Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Tao Jia
- Laboratory of Photosynthesis and Environmental Biology, Chinese Academy of Sciences Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Sjef Smeekens
- Molecular Plant Physiology, Institute of Environmental Biology, Utrecht University, 3584 CH Utrecht, The Netherlands
| | - Sheng Teng
- Laboratory of Photosynthesis and Environmental Biology, Chinese Academy of Sciences Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
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12
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Yu B, Wang Y, Zhou H, Li P, Liu C, Chen S, Peng Y, Zhang Y, Teng S. Genome-wide binding analysis reveals that ANAC060 directly represses sugar-induced transcription of ABI5 in Arabidopsis. Plant J 2020; 103:965-979. [PMID: 32314488 DOI: 10.1111/tpj.14777] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 03/18/2020] [Accepted: 03/31/2020] [Indexed: 06/11/2023]
Abstract
The sugar status of a plant acts as a signal affecting growth and development. The phenomenon by which high levels of sugars inhibit seedling establishment has been widely used to gain insight into sugar-signaling pathways. Natural allelic variation has been identified at the ANAC060 locus. The Arabidopsis Columbia ecotype produces a short ANAC060 protein without a transmembrane domain that is constitutively located to the nucleus, causing sugar insensitivity when overexpressed. In this study, we generated a genome-wide DNA-binding map of ANAC060 via chromatin immunoprecipitation sequencing using transgenic lines that express a functional ANAC060-GFP fusion protein in an anac060 background. A total of 3282 genes associated with ANAC060-binding sites were identified. These genes were enriched in biotic and abiotic stress responses, and the G-box binding motif was highly enriched in ANAC060-bound genomic regions. Expression microarray analysis resulted in the identification of 8350 genes whose activities were altered in the anac060 mutant and upon sugar treatment. Cluster analysis revealed that ANAC060 attenuates sugar-regulated gene expression. Direct target genes of ANAC060 included equivalent numbers of genes that were upregulated or downregulated by ANAC060. The various functions of these target genes indicate that ANAC060 has several functions. Our results demonstrate that ANAC060 directly binds to the promoter of ABI5 and represses the sugar-induced transcription of ABI5. Genetic data indicate that ABI5 is epistatic to ANAC060 in both sugar and abscisic acid responses.
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Affiliation(s)
- Bo Yu
- Laboratory of Photosynthesis and Environmental Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai, 200032, China
- University of Chinese Academy of Sciences, No.19(A) Yuquan Road, Beijing, 100049, China
| | - Yuejun Wang
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai, 200032, China
- University of Chinese Academy of Sciences, No.19(A) Yuquan Road, Beijing, 100049, China
| | - Hua Zhou
- Laboratory of Photosynthesis and Environmental Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai, 200032, China
| | - Ping Li
- Laboratory of Photosynthesis and Environmental Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai, 200032, China
| | - Chunmei Liu
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai, 200032, China
- University of Chinese Academy of Sciences, No.19(A) Yuquan Road, Beijing, 100049, China
| | - Sunlu Chen
- Laboratory of Photosynthesis and Environmental Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai, 200032, China
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Agriculture, Nanjing Agricultural University, 1 Weigang Road, Nanjing, 210095, China
| | - Yu Peng
- Laboratory of Photosynthesis and Environmental Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai, 200032, China
| | - Yijing Zhang
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai, 200032, China
- University of Chinese Academy of Sciences, No.19(A) Yuquan Road, Beijing, 100049, China
| | - Sheng Teng
- Laboratory of Photosynthesis and Environmental Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai, 200032, China
- University of Chinese Academy of Sciences, No.19(A) Yuquan Road, Beijing, 100049, China
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13
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Xu J, Zhou H, Teng S, Hu Z. Radical apical lymph node dissection guided by carbon nanoparticles in laparoscopic rectal cancer surgery - a video vignette. Colorectal Dis 2019; 21:1453. [PMID: 31400184 DOI: 10.1111/codi.14821] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 07/24/2019] [Indexed: 02/08/2023]
Affiliation(s)
- J Xu
- Department of Surgery, Shanghai Baoshan District Combining Traditional Chinese and Western Medicine Hospital, Shanghai, China
| | - H Zhou
- Division of Colorectal Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - S Teng
- Division of Colorectal Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Z Hu
- Division of Colorectal Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, China
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14
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Liu X, Xu J, Li F, Liao Z, Ren Z, Zhu L, Shi Y, Zhao G, Bai X, Zhao J, Xing R, Teng S, Yang Y, Yang J. Efficacy and safety of the VEGFR2 inhibitor Apatinib for metastatic soft tissue sarcoma: Chinese cohort data from NCT03121846. Biomed Pharmacother 2019; 122:109587. [PMID: 31786466 DOI: 10.1016/j.biopha.2019.109587] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 10/22/2019] [Accepted: 10/26/2019] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND There is no standard treatment for stage IV soft tissue sarcoma (STS) after the failure of Adriamycin-based chemotherapy. This phase II study (NCT03121846) assessed the efficacy and safety of apatinib (YN968D1), a new tyrosine kinase inhibitor that targets VEGFR-2, for patients with stage IV STS after chemotherapy failure. METHODS Forty-two subjects with stage IV STSs who had failed chemotherapy and who received Apatinib were recruited between September 2015 and February 2018. The primary endpoint was progression-free survival (PFS), and the secondary endpoints were the PFS rate (PFR), objective response rate (ORR), and disease control rate (DCR) at week 12. Treatment-related adverse effects (AEs) were evaluated. RESULTS Forty-two subjects were evaluated for AEs and 38 subjects were evaluated for efficacy. At 12 weeks, the PFR, ORR, and DCR were 70%, 26.32% (10/38), and 86.84% (33/38), respectively. Regarding overall responses, the ORR and DCR were 23.68% (9/38) and 57.89% (22/38), respectively. The median PFS was 7.87 months, and the median overall survival (OS) was 17.55 months. The most common AEs included hypertension (n = 18, 42.86%), hand-foot-skin reaction (n = 15, 35.71%), apositia (n = 13, 30.95%), and proteinuria (n = 11, 26.19%). No subjects had grade 4 AEs and 11 subjects (26.19%) experienced grade 3 AEs, mainly hypertension, hand-foot-skin reaction, proteinuria, apositia, fatigue, pain, and dysgeusia. Notably, the subjects who experienced hypertension, hand-foot-skin reaction, or proteinuria had significantly longer OS than those without these AEs (P = 0.0003). CONCLUSION With the largest Chinese STS cohort to date, we report that apatinib show good efficacy in advanced STS subjects with significant higher ORR and some adverse events may predict prognosis.
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Affiliation(s)
- Xinyue Liu
- Departments of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China; National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China; Key Laboratory of Molecular Cancer Epidemiology, Tianjin, 300060, People's Republic of China
| | - Jin Xu
- Department of Anesthesiology, Tianjin Hospital, Tianjin, Tianjin, 300000, People's Republic of China
| | - Feng Li
- Departments of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China; National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China; Key Laboratory of Molecular Cancer Epidemiology, Tianjin, 300060, People's Republic of China
| | - Zhichao Liao
- Departments of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China; National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China
| | - Zhiwu Ren
- Departments of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China; National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China
| | - Lei Zhu
- National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China; Molecular Imaging, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China
| | - Yehui Shi
- National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China; Pharmacological Research Center, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China
| | - Gang Zhao
- National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China; Pathology, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China
| | - Xu Bai
- National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China; Radiation Oncology, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China
| | - Jun Zhao
- Departments of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China; National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China
| | - Ruwei Xing
- Departments of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China; National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China
| | - Sheng Teng
- Departments of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China; National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China
| | - Yun Yang
- Departments of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China; National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China
| | - Jilong Yang
- Departments of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China; National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China; Key Laboratory of Molecular Cancer Epidemiology, Tianjin, 300060, People's Republic of China.
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15
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Peng Y, Zhang Y, Gui Y, An D, Liu J, Xu X, Li Q, Wang J, Wang W, Shi C, Fan L, Lu B, Deng Y, Teng S, He Z. Elimination of a Retrotransposon for Quenching Genome Instability in Modern Rice. Mol Plant 2019; 12:1395-1407. [PMID: 31228579 DOI: 10.1016/j.molp.2019.06.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 06/05/2019] [Accepted: 06/09/2019] [Indexed: 05/26/2023]
Abstract
Transposable elements (TEs) constitute the most abundant portions of plant genomes and can dramatically shape host genomes during plant evolution. They also play important roles in crop domestication. However, whether TEs themselves are also selected during crop domestication has remained unknown. Here, we identify an active long terminal repeat (LTR) retrotransposon, HUO, as a potential target of selection during rice domestication and breeding. HUO is a low-copy-number LTR retrotransposon, and is active under natural growth conditions and transmitted through male gametogenesis, preferentially inserting into genomic regions capable of transcription. HUO exists in all wild rice accessions and about half of the archaeological rice grains (1200-7000 years ago) and landraces surveyed, but is absent in almost all modern varieties, indicating its gradual elimination during rice domestication and breeding. Further analyses showed that HUO is subjected to strict gene silencing through the RNA-directed DNA methylation pathway. Our results also suggest that multiple HUO copies may trigger genomic instability through altering genome-wide DNA methylation and small RNA biogenesis and changing global gene expression, resulting in decreased disease resistance and yield, coinciding with its elimination during rice breeding. Together, our study suggests that negative selection of an active retrotransposon might be important for genome stability during crop domestication and breeding.
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Affiliation(s)
- Yu Peng
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology & Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Yingying Zhang
- The Protected Horticulture Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Yijie Gui
- School of Life Sciences, Fudan University, Shanghai 200433, China
| | - Dong An
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology & Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Junzhong Liu
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology & Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Xun Xu
- Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China
| | - Qun Li
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology & Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Junmin Wang
- Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Wen Wang
- Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China
| | - Chunhai Shi
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Longjiang Fan
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Baorong Lu
- School of Life Sciences, Fudan University, Shanghai 200433, China
| | - Yiwen Deng
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology & Ecology, Chinese Academy of Sciences, Shanghai 200032, China.
| | - Sheng Teng
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology & Ecology, Chinese Academy of Sciences, Shanghai 200032, China.
| | - Zuhua He
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology & Ecology, Chinese Academy of Sciences, Shanghai 200032, China.
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16
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Liao Z, Qiu M, Yang J, Yang Y, Zhu L, Yang B, Bai X, Xing P, Zhang J, Xing R, Teng S, Zhao J. Outcomes of surgery and/or combination chemotherapy for extraskeletal osteosarcoma: a single-center retrospective study from China. Sci Rep 2019; 9:4816. [PMID: 30886189 PMCID: PMC6423283 DOI: 10.1038/s41598-019-41089-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 02/28/2019] [Indexed: 11/23/2022] Open
Abstract
Extraskeletal osteosarcoma (ESOS) is an extremely rare malignancy with poor prognosis, accounting for 2-4% of all osteogenic sarcomas. The purpose of this study was to examine the oncological outcomes of this disease related to surgical treatment and/or combined adjuvant therapies and to analyze the associated prognostic factors in ESOS. From January 1990 to June 2016, 22 patients with primary ESOS were analyzed in this retrospective study. Overall survival (OS) and progression-free survival (PFS) rates were calculated by Kaplan-Meier methods and compared with log-rank test. 22 patients were diagnosed with ESOS, 19 showed localized diseases and 3 presented with metastatic lesions. The median age at diagnosis was 55.5 years. Surgery resection was performed for all patients, 18 of whom received adjuvant chemotherapy. The median follow-up time was 48.5 months. There were 10 cases of recurrence and 9 patients developed new metastases. The 5-year OS rate for all patients was 58%. For localized cohort, the 5-year OS rate was 62%, and the 3-year PFS rate was 31% with a median PFS of 16 months. Univariate analysis of related prognosis factors showed that larger size of tumor (>5.5 cm) and higher histologic grade emerged as significant factors associated with worse OS. The addition of combination chemotherapy has no effect found on OS or PFS in this study. In summary, for patients who presented with ESOS, larger tumor size and higher histologic grade indicate a lower OS rate. The combination chemotherapy does not improve the OS or PFS.
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Affiliation(s)
- Zhichao Liao
- Departments of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China
- National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China
| | - Minghan Qiu
- Department of Oncology, Tianjin Union Medical Center, Tianjin, 300121, People's Republic of China
| | - Jilong Yang
- Departments of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China.
- National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China.
| | - Yun Yang
- Departments of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China
- National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China
| | - Lei Zhu
- National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China
- Departments of Molecular Imagine, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China
| | - Bo Yang
- National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China
- Departments of Pathology, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China
| | - Xu Bai
- National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China
- Departments of Radiation Oncology, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China
| | - Peipei Xing
- Departments of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China
- National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China
| | - Jin Zhang
- Departments of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China
- National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China
| | - Ruwei Xing
- Departments of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China
- National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China
| | - Sheng Teng
- Departments of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China
- National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China
| | - Jun Zhao
- Departments of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China.
- National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, People's Republic of China.
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17
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Liu X, Chen S, Chen M, Zheng G, Peng Y, Shi X, Qin P, Xu X, Teng S. Association Study Reveals Genetic Loci Responsible for Arsenic, Cadmium and Lead Accumulation in Rice Grain in Contaminated Farmlands. Front Plant Sci 2019; 10:61. [PMID: 30804959 PMCID: PMC6370710 DOI: 10.3389/fpls.2019.00061] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 01/16/2019] [Indexed: 05/17/2023]
Abstract
Accumulation of toxic heavy metals and metalloids (THMMs) in crop grain remarkably affects food safety and human health. Reducing the content of THMMs in grain requires the identification and manipulation of the genes regulating their accumulation. This study aimed to determine the genetic variations affecting grain THMM accumulation in rice by using association mapping. We used 276 accessions with 416 K single nucleotide polymorphisms (SNPs) and performed genome-wide association analysis of grain THMM concentrations in rice grown in heavily multi-contaminated farmlands. We detected 22, 17, and 21 quantitative trait loci (QTLs) for grain arsenic, cadmium, and lead concentrations, respectively. Both inter- and intra-subpopulation variants accounted for these QTLs. Most QTLs contained no known THMM-related genes and represented unidentified novel genes. We examined the candidate genes in qGAS1, a QTL for grain arsenic concentration with the best P-value detected for the entire population. We speculated that a transport protein of the multidrug and toxin extrusion family could be the candidate gene for this QTL. Our study suggested that the genetic regulation of grain THMM accumulation is very complex and largely unknown. The QTLs and SNPs identified in this study might help in the identification of new genes regulating THMM accumulation and aid in marker-assisted breeding of rice with low grain THMM content.
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Affiliation(s)
- Xiuyan Liu
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, China
- Laboratory of Photosynthesis and Environmental Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
- Key Laboratory for Water Pollution Control and Environmental Safety of Zhejiang Province, Zhejiang University, Hangzhou, China
| | - Sunlu Chen
- Laboratory of Photosynthesis and Environmental Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Agriculture, Nanjing Agricultural University, Nanjing, China
| | - Mingxue Chen
- China National Rice Research Institute, Hangzhou, China
| | - Guangyong Zheng
- Bio-Med Big Data Center, CAS Key Laboratory of Computational Biology, CAS-MPG Partner Institute for Computational Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Yu Peng
- Laboratory of Photosynthesis and Environmental Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
| | - Xiaoliang Shi
- Laboratory of Photosynthesis and Environmental Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
| | - Ping Qin
- Laboratory of Photosynthesis and Environmental Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
| | - Xiangyang Xu
- Key Laboratory for Water Pollution Control and Environmental Safety of Zhejiang Province, Zhejiang University, Hangzhou, China
| | - Sheng Teng
- Laboratory of Photosynthesis and Environmental Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
- *Correspondence: Sheng Teng,
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18
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Teng S, Ren Z, Zhao K. Vagal Stimulation Facilitates Improving Effects of Ranolazine on Cardiac Function in Rats with Chronic Ischemic Heart Failure. Curr Mol Med 2018; 18:36-43. [PMID: 29879885 DOI: 10.2174/1566524018666180608085330] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 05/18/2018] [Accepted: 06/04/2018] [Indexed: 11/22/2022]
Affiliation(s)
- S. Teng
- Department of Emergency Medicine, The Fourth Clinical Hospital of Harbin Medical University, Harbin 150001, China
| | - Z. Ren
- Department of Emergency Medicine, The Fourth Clinical Hospital of Harbin Medical University, Harbin 150001, China
| | - K. Zhao
- Department of Emergency Medicine, The Fourth Clinical Hospital of Harbin Medical University, Harbin 150001, China
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19
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Li F, Liao Z, Zhang C, Zhao J, Xing R, Teng S, Zhang J, Yang Y, Yang J. Apatinib as targeted therapy for sarcoma. Oncotarget 2018; 9:24548-24560. [PMID: 29849960 PMCID: PMC5966248 DOI: 10.18632/oncotarget.24647] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 02/25/2018] [Indexed: 12/11/2022] Open
Abstract
Sarcomas are a group of malignant tumors originating from mesenchymal tissue with a variety of cell subtypes. Despite several major treatment breakthroughs, standard treatment using surgery, radiation, and chemotherapy has failed to improve overall survival. Therefore, there is an urgent need to explore new strategies and innovative therapies to further improve the survival rates of patients with sarcomas. Pathological angiogenesis has an important role in the growth and metastasis of tumors. Vascular endothelial growth factor (VEGF) and vascular endothelial growth factor receptors (VEGFRs) play a central role in tumor angiogenesis and represent potential targets for anticancer therapy. As a novel targeted therapy, especially with regard to angiogenesis, apatinib is a new type of small molecule tyrosine kinase inhibitor that selectively targets VEGFR-2 and has shown encouraging anticancer activity in a wide range of malignancies, including gastric cancer, non-small cell lung cancer, breast cancer, hepatocellular carcinoma, and sarcomas. In this review, we summarize the preclinical and clinical data for apatinib, focusing primarily on its use in the treatment of sarcomas.
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Affiliation(s)
- Feng Li
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, People's Republic of China.,Tianjin's Clinical Research Center for Cancer, Tianjin 300060, People's Republic of China
| | - Zhichao Liao
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, People's Republic of China.,Tianjin's Clinical Research Center for Cancer, Tianjin 300060, People's Republic of China
| | - Chao Zhang
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, People's Republic of China.,Tianjin's Clinical Research Center for Cancer, Tianjin 300060, People's Republic of China
| | - Jun Zhao
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, People's Republic of China.,Tianjin's Clinical Research Center for Cancer, Tianjin 300060, People's Republic of China
| | - Ruwei Xing
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, People's Republic of China.,Tianjin's Clinical Research Center for Cancer, Tianjin 300060, People's Republic of China
| | - Sheng Teng
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, People's Republic of China.,Tianjin's Clinical Research Center for Cancer, Tianjin 300060, People's Republic of China
| | - Jin Zhang
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, People's Republic of China.,Tianjin's Clinical Research Center for Cancer, Tianjin 300060, People's Republic of China
| | - Yun Yang
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, People's Republic of China.,Tianjin's Clinical Research Center for Cancer, Tianjin 300060, People's Republic of China
| | - Jilong Yang
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, People's Republic of China.,Tianjin's Clinical Research Center for Cancer, Tianjin 300060, People's Republic of China
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20
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Tang X, Teng S, Petri M, Krettek C, Liu C, Jagodzinski M. The effect of anti-inflammatory and antifibrotic agents on fibroblasts obtained from arthrofibrotic tissue: An in vitro and in vivo study. Bone Joint Res 2018; 7:213-222. [PMID: 29922438 PMCID: PMC5987688 DOI: 10.1302/2046-3758.73.bjr-2017-0219.r2] [Citation(s) in RCA: 6] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Objectives The aims of this study were to determine whether the administration of anti-inflammatory and antifibrotic agents affect the proliferation, viability, and expression of markers involved in the fibrotic development of the fibroblasts obtained from arthrofibrotic tissue in vitro, and to evaluate the effect of the agents on arthrofibrosis prevention in vivo. Methods Dexamethasone, diclofenac, and decorin, in different concentrations, were employed to treat fibroblasts from arthrofibrotic tissue (AFib). Cell proliferation was measured by DNA quantitation, and viability was analyzed by Live/Dead staining. The levels of procollagen type I N-terminal propeptide (PINP) and procollagen type III N-terminal propeptide (PIIINP) were evaluated with enzyme-linked immunosorbent assay (ELISA) kits. In addition, the expressions of fibrotic markers were detected by real-time polymerase chain reaction (PCR). Fibroblasts isolated from healthy tissue (Fib) served as control. Further, a rabbit model of joint contracture was used to evaluate the antifibrotic effect of the three different agents. Results Dexamethasone maintained the viability and promoted the proliferation of AFib. Diclofenac decreased the viability and inhibited the cell proliferation during the first week of cultivation. However, decorin inhibited AFib proliferation and downregulated the expressions of fibrotic markers. Additionally, decorin could improve the flexion contracture angle and inhibit the deposition of interstitial matrix components in the rabbit joint model. Conclusion Decorin decreased the expression of myofibroblast markers in AFib, inhibited the proliferation of AFib, and prevented the initial procedure of arthrofibrosis in vivo, suggesting that decorin could be a promising treatment to inhibit the development of arthrofibrosis.Cite this article: X. Tang, S. Teng, M. Petri, C. Krettek, C. Liu, M. Jagodzinski. The effect of anti-inflammatory and antifibrotic agents on fibroblasts obtained from arthrofibrotic tissue: An in vitro and in vivo study. Bone Joint Res 2018;7:213-222. DOI: 10.1302/2046-3758.73.BJR-2017-0219.R2.
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Affiliation(s)
- X Tang
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - S Teng
- Department of Orthopedic Trauma, Hannover Medical School (MH), Hannover, Germany
| | - M Petri
- Department of Orthopedic Trauma, Hannover Medical School (MH), Hannover, Germany
| | - C Krettek
- Department of Orthopedic Trauma, Hannover Medical School (MH), Hannover, Germany
| | - C Liu
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - M Jagodzinski
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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21
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Teng S, Thomson PA, McCarthy S, Kramer M, Muller S, Lihm J, Morris S, Soares DC, Hennah W, Harris S, Camargo LM, Malkov V, McIntosh AM, Millar JK, Blackwood DH, Evans KL, Deary IJ, Porteous DJ, McCombie WR. Rare disruptive variants in the DISC1 Interactome and Regulome: association with cognitive ability and schizophrenia. Mol Psychiatry 2018; 23:1270-1277. [PMID: 28630456 PMCID: PMC5984079 DOI: 10.1038/mp.2017.115] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 03/20/2017] [Accepted: 03/27/2017] [Indexed: 12/20/2022]
Abstract
Schizophrenia (SCZ), bipolar disorder (BD) and recurrent major depressive disorder (rMDD) are common psychiatric illnesses. All have been associated with lower cognitive ability, and show evidence of genetic overlap and substantial evidence of pleiotropy with cognitive function and neuroticism. Disrupted in schizophrenia 1 (DISC1) protein directly interacts with a large set of proteins (DISC1 Interactome) that are involved in brain development and signaling. Modulation of DISC1 expression alters the expression of a circumscribed set of genes (DISC1 Regulome) that are also implicated in brain biology and disorder. Here we report targeted sequencing of 59 DISC1 Interactome genes and 154 Regulome genes in 654 psychiatric patients and 889 cognitively-phenotyped control subjects, on whom we previously reported evidence for trait association from complete sequencing of the DISC1 locus. Burden analyses of rare and singleton variants predicted to be damaging were performed for psychiatric disorders, cognitive variables and personality traits. The DISC1 Interactome and Regulome showed differential association across the phenotypes tested. After family-wise error correction across all traits (FWERacross), an increased burden of singleton disruptive variants in the Regulome was associated with SCZ (FWERacross P=0.0339). The burden of singleton disruptive variants in the DISC1 Interactome was associated with low cognitive ability at age 11 (FWERacross P=0.0043). These results identify altered regulation of schizophrenia candidate genes by DISC1 and its core Interactome as an alternate pathway for schizophrenia risk, consistent with the emerging effects of rare copy number variants associated with intellectual disability.
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Affiliation(s)
- S Teng
- Stanley Institute for Cognitive Genomics, Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, USA
- Department of Biology, Howard University, Washington DC, USA
| | - P A Thomson
- Centre for Genomic and Experimental Medicine, MRC/University of Edinburgh Institute of Genetics & Molecular Medicine, Western General Hospital, Edinburgh, UK
- Centre for Cognitive Ageing and Cognitive Epidemiology, Edinburgh, UK
| | - S McCarthy
- Stanley Institute for Cognitive Genomics, Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, USA
| | - M Kramer
- Stanley Institute for Cognitive Genomics, Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, USA
| | - S Muller
- Stanley Institute for Cognitive Genomics, Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, USA
| | - J Lihm
- Stanley Institute for Cognitive Genomics, Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, USA
| | - S Morris
- Centre for Genomic and Experimental Medicine, MRC/University of Edinburgh Institute of Genetics & Molecular Medicine, Western General Hospital, Edinburgh, UK
| | - D C Soares
- Centre for Genomic and Experimental Medicine, MRC/University of Edinburgh Institute of Genetics & Molecular Medicine, Western General Hospital, Edinburgh, UK
| | - W Hennah
- Institute for Molecular Medicine, Finland FIMM, University of Helsinki, Helsinki, Finland
| | - S Harris
- Centre for Genomic and Experimental Medicine, MRC/University of Edinburgh Institute of Genetics & Molecular Medicine, Western General Hospital, Edinburgh, UK
- Centre for Cognitive Ageing and Cognitive Epidemiology, Edinburgh, UK
| | - L M Camargo
- UCB New Medicines, One Broadway, Cambridge, MA, USA
| | - V Malkov
- Genetics and Pharmacogenomics, MRL, Merck & Co, Boston, MA, USA
| | - A M McIntosh
- Division of Psychiatry, University of Edinburgh, Royal Edinburgh Hospital, Edinburgh, UK
| | - J K Millar
- Centre for Genomic and Experimental Medicine, MRC/University of Edinburgh Institute of Genetics & Molecular Medicine, Western General Hospital, Edinburgh, UK
| | - D H Blackwood
- Division of Psychiatry, University of Edinburgh, Royal Edinburgh Hospital, Edinburgh, UK
| | - K L Evans
- Centre for Cognitive Ageing and Cognitive Epidemiology, Edinburgh, UK
| | - I J Deary
- Centre for Cognitive Ageing and Cognitive Epidemiology, Edinburgh, UK
- Department of Psychology, University of Edinburgh, Edinburgh, UK
| | - D J Porteous
- Centre for Genomic and Experimental Medicine, MRC/University of Edinburgh Institute of Genetics & Molecular Medicine, Western General Hospital, Edinburgh, UK
- Centre for Cognitive Ageing and Cognitive Epidemiology, Edinburgh, UK
| | - W R McCombie
- Stanley Institute for Cognitive Genomics, Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, USA
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22
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Xing P, Zhang J, Yan Z, Zhao G, Li X, Wang G, Yang Y, Zhao J, Xing R, Teng S, Ma Y, Liao Z, Ren Z, Zhang C, Han X, Zhang W, Chen K, Wang P, Yang J. Recombined humanized endostatin (Endostar) combined with chemotherapy for advanced bone and soft tissue sarcomas in stage IV. Oncotarget 2018; 8:36716-36727. [PMID: 27888623 PMCID: PMC5482691 DOI: 10.18632/oncotarget.13545] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Accepted: 11/12/2016] [Indexed: 02/07/2023] Open
Abstract
PURPOSE This retrospective case-series study evaluated efficacy and safety of Endostar combined with chemotherapy in the treatment of advanced bone and soft tissue sarcomas in stage IV. MATERIALS AND METHODS Forty-seven patients diagnosed with stage IV bone and soft tissue sarcomas and treated with chemotherapy in Tianjin Medical University Cancer Institute & Hospital were reviewed. Of these patients, 23 patients were treated with Endostar plus chemotherapy (designated as combined group), and 24 patients received only chemotherapy (designated as control group). Progression-free survival (PFS), overall survival (OS), objective response rate (ORR) and clinical benefit response (CBR) were analyzed to find the difference between these two groups with the purpose to investigate the role of Endostar in metastatic sarcomas. RESULTS Endostar combined with chemotherapy had significantly increased PFS. In the combined group and control groups, the median PFS (8.6 months versus 4.4 months) and the CBR (47.8% versus 16.7%) showed significant difference (P = 0.032), while the median overall survival (11.7 months versus 10.6 months, P = 0.658) and the ORR (17.4% versus 8.3%, P = 0.167) showed no significant difference. The common grade 3-4 side effects for both groups were myelosuppression and transient elevation of transaminases. CONCLUSION Endostar combined with chemotherapy had significant activity to increase the PFS and improve CBR in patients with advanced sarcomas, with tolerable side effects.
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Affiliation(s)
- Peipei Xing
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China
| | - Jin Zhang
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China
| | - Zhao Yan
- National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,Pharmacological Research Center, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China
| | - Gang Zhao
- Department of Pathology, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China
| | - Xubin Li
- Department of Radiology, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China
| | - Guowen Wang
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China
| | - Yun Yang
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China
| | - Jun Zhao
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China
| | - Ruwei Xing
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China
| | - Sheng Teng
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China
| | - Yulin Ma
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China
| | - Zhichao Liao
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China
| | - Zhiwu Ren
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China
| | - Chao Zhang
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China
| | - Xiuxin Han
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China
| | - Wei Zhang
- Department of Cancer Biology, Wake Forest Baptist Comprehensive Cancer Center, Winston-Salem, North Carolina 27157, USA
| | - Kexin Chen
- National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,Department of Epidemiology and Biostatistics, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China
| | - Ping Wang
- National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,Department of Radiation Oncology, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China
| | - Jilong Yang
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China.,National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, People's Republic of China
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Lin D, Zheng K, Liu Z, Li Z, Teng S, Xu J, Dong Y. Rice TCM1 Encoding a Component of the TAC Complex is Required for Chloroplast Development under Cold Stress. Plant Genome 2018; 11:160065. [PMID: 29505628 DOI: 10.3835/plantgenome2016.07.0065] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Transcriptionally active chromosome (TAC) is a component of protein-DNA complexes with RNA polymerase activity, expressed in the plastid. However, the function of rice TAC proteins is still poorly understood. In this paper, we first report the identification of a new rice ( L.) mutant () in the gene encoding TAC. The mutant displayed an albino phenotype and malformed chloroplasts before the three-leaf stage when grown at low temperatures (20°C) and a normal phenotype at higher temperatures (>28°C). Map-based cloning revealed that encodes a novel chloroplast-targeted TAC protein in rice. In addition, the transcript levels of all examined plastid-encoded polymerase (PEP)-dependent genes were clearly downregulated in mutants at low temperatures, although partially recovering levels were obtained at high temperatures, comparable to wild-type plants. Furthermore, the transcripts were ubiquitously expressed in all examined tissues, with high expression levels in green tissues. The data suggest that the rice nuclear-encoded TAC protein TCM1 is essential for proper chloroplast development and maintaining PEP activity under cold stress.
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Shi X, Chen S, Peng Y, Wang Y, Chen J, Hu Z, Wang B, Li A, Chao D, Li Y, Teng S. TSC1 enables plastid development under dark conditions, contributing to rice adaptation to transplantation shock. J Integr Plant Biol 2018; 60:112-129. [PMID: 29210524 DOI: 10.1111/jipb.12621] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 12/04/2017] [Indexed: 06/07/2023]
Abstract
Since its domestication from wild rice thousands of years ago, rice has been cultivated largely through transplantation. During transplantation from the nursery to the paddy field, rice seedlings experience transplantation shock which affects their physiology and production. However, the mechanisms underlying transplantation shock and rice adaptation to this shock are largely unknown. Here, we isolated a transplant-sensitive chloroplast-deficient (tsc1) rice mutant that produces albino leaves after transplantation. Blocking light from reaching the juvenile leaves and leaf primordia caused chloroplast deficiencies in transplanted tsc1 seedlings. TSC1 encodes a noncanonical adenosine triphosphate-binding cassette (ABC) transporter homologous to AtNAP14 and is of cyanobacterial origin. We demonstrate that TSC1 controls plastid development in rice under dark conditions, and functions independently of light signaling. However, light rescued the tsc1 mutant phenotype in a spectrum-independent manner. TSC1 was upregulated following transplantation, and modulated the iron and copper levels, thereby regulating prolamellar body formation during the early P4 stage of leaf development. Therefore, TSC1 is indispensable for plastid development in the absence of light, and contributes to adaptation to transplantation shock. Our study provides insight into the regulation of plastid development and establishes a framework for improving recovery from transplantation shock in rice.
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Affiliation(s)
- Xiaoliang Shi
- Laboratory of Photosynthesis and Environmental Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Science, Shanghai 200032, China
| | - Sunlu Chen
- Laboratory of Photosynthesis and Environmental Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Science, Shanghai 200032, China
| | - Yu Peng
- Laboratory of Photosynthesis and Environmental Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Science, Shanghai 200032, China
| | - Yufeng Wang
- Laboratory of Photosynthesis and Environmental Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Science, Shanghai 200032, China
| | - Jiugeng Chen
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Zhanghua Hu
- Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Baohe Wang
- Rice Breeding Center, Lixiahe Agricultural Research Institute of Jiangsu Province, Yangzhou 225007, China
| | - Aihong Li
- Rice Breeding Center, Lixiahe Agricultural Research Institute of Jiangsu Province, Yangzhou 225007, China
| | - Daiyin Chao
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Yuhong Li
- Rice Breeding Center, Lixiahe Agricultural Research Institute of Jiangsu Province, Yangzhou 225007, China
| | - Sheng Teng
- Laboratory of Photosynthesis and Environmental Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Science, Shanghai 200032, China
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Zhao SY, Wang J, Teng S, Zhou J, Lin XY, Song W, Wu YD, Wei Y. [Observation on intestinal viral shedding time of hand, foot and mouth disease induced by coxsackievirus A6]. Zhonghua Er Ke Za Zhi 2017; 55:369-372. [PMID: 28482389 DOI: 10.3760/cma.j.issn.0578-1310.2017.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To observe the intestinal viral shedding time in patients with hand, food and mouth disease (HFMD) induced by coxsackievirus A6 (CA6). Method: Throat swab specimens and stool specimens of HFMD children were collected from those admitted to Hangzhou Children's Hospital between May and October 2015, while fluorescence quantitative PCR was used to detect the viral load.Eeighteen cases of HFMD children were followed up, who were confirmed as CA6 infection via laboratory tests.Stool specimen was collected every 4-7 days, and fluorescence PCR was used for virus nucleic acid detection until the stool viral nucleic acids of infected children turned to be negative.The intestinal virus shedding time of CA6-infected HFMD was compared with the intestinal virus shedding time of 65 children with enterovirus 71 (EV71) infection and 44 children with coxsackievirus A16 (CA16) infection of the previous studies (from May to September 2012). Result: The median stool viral load was 25×10(5) copies/ml (55×10(4) copies/mL, 9×10(6) copies/ml) in CA6-infected children.The numbers of stool virus nucleic acid turning negative were 0 case, 4 cases, 9 cases, 3 cases and 2 cases in 18 children at 1st, 2nd, 3rd, 4th, 5th weeks. At 5th week, the stool virus nucleic acid of children in CA6 group all turned to be negative.The positive rates of stool virus nucleic acid in EV71 group and CA16 group at the 5th week, however, were 31% and 27% respectively.There were statistically significant differences in distribution of positive rate of stool virus nucleic acid between CA6 infected children with EV71 and CA16 infected children (χ(2)=13.894, 10.698, P<0.05). Conclusion: The longest intestinal virus shedding time for CA6-infected HFMD children was 5 weeks, which is obviously shorter than that of EV71- infected children and CA16-infected children.
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Affiliation(s)
- S Y Zhao
- Department of Infectious Diseases, Hangzhou Children's Hospital, Hangzhou 310014, China
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26
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Teng S, Guo Z, Peng H, Xing G, Chen H, He B, McClure M, Mu Q. High-frequency repetitive transcranial magnetic stimulation over the left DLPFC for major depression: Session-dependent efficacy: A meta-analysis. Eur Psychiatry 2017; 41:75-84. [DOI: 10.1016/j.eurpsy.2016.11.002] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Revised: 11/02/2016] [Accepted: 11/02/2016] [Indexed: 01/18/2023] Open
Abstract
AbstractBackgroundDepression is a major debilitating psychiatric disorder. Current antidepressant drugs are often associated with side effects or treatment resistance. The aim of this meta-analysis was to evaluate therapeutic effects of high-frequency repetitive transcranial magnetic stimulation (HF-rTMS) in major depression (MD).MethodsThe medical data bases of PubMed, Medline, Embase and Cochrane Central Register were searched for randomized controlled trials (RCTs) reporting the therapeutic effects of high-frequency rTMS for depression, which were published in English between January 1990 and June 2016. The index terms were “depress*”, “depression” and “transcranial magnetic stimulation”. Depression outcome data of different sessions (5, 10, 15, and 20 sessions of rTMS treatment) were extracted and synthesized by calculating standardized mean difference (SMD) with 95% confidence intervals (CI) by using a random-effect model. Within each session group, the subgroup analyses based on the number of pulses (≤ 1000, 1200–1500, 1600–1800, and 2000–3000) were also conducted.ResultsThirty RCTs with a total of 1754 subjects including 1136 in the rTMS group and 618 in the sham group were included in this meta-analysis. rTMS had a significant overall therapeutic effect on depression severity scores (SMD = −0.73, P < 0.00001). The five, 10, 15, 20 sessions of rTMS treatments yielded the significant mean effect sizes of −0.43, −0.60, −1.13, and −2.74, respectively. In the four groups (5, 10, 15, 20 sessions), the maximal mean effect size was all obtained in the subgroup of 1200–1500 pulses per day (−0.97, −1.14, −1.91, −5.47; P < 0.05).ConclusionsThe increasing of HF-rTMS sessions is associated with the increased efficacy of HF-rTMS in reducing depressed patients’ symptom severity. A total number of pulses of 1200–1500 per day appear to deliver the best antidepressant effects of HF-rTMS.
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Zheng K, Zhao J, Lin D, Chen J, Xu J, Zhou H, Teng S, Dong Y. The Rice TCM5 Gene Encoding a Novel Deg Protease Protein is Essential for Chloroplast Development under High Temperatures. Rice (N Y) 2016; 9:13. [PMID: 27000876 PMCID: PMC4801845 DOI: 10.1186/s12284-016-0086-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 01/08/2016] [Indexed: 05/05/2023]
Abstract
BACKGROUND High temperature affects a broad spectrum of cellular components and metabolism in plants. The Deg/HtrA family of ATP-independent serine endopeptidases is present in nearly all organisms. Deg proteases are required for the survival of Escherichia coli at high temperatures. However, it is still unclear whether rice Deg proteases are required for chloroplast development under high temperatures. RESULTS In this study, we reported the first rice deg mutant tcm5 (thermo-sensitive chlorophyll-deficient mutant 5) that has an albino phenotype, defective chloroplasts and could not survive after the 4-5 leaf seedling stage when grown at high temperature (32 °C). However, when grown at low temperatures (20 °C), tcm5 has a normal phenotype. Map-based cloning showed that TCM5 encoding a chloroplast-targeted Deg protease protein. The TCM5 transcripts were highly expressed in all green tissues and undetectable in other tissues, showing the tissue-specific expression. In tcm5 mutants grown at high temperatures, the transcript levels of certain genes associated with chloroplast development especially PSII-associated genes were severely affected, but recovered to normal levels at low temperatures. These results showed important role of TCM5 for chloroplast development under high temperatures. CONCLUSIONS The TCM5 encodes chloroplast-targeted Deg protease protein which is important for chloroplast development and the maintenance of PSII function and its disruption would lead to a defective chloroplast and affected expression levels of genes associated with chloroplast development and photosynthesis at early rice seedling stage under high temperatures.
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Affiliation(s)
- Kailun Zheng
- />Development Center of Plant Germplasm Resources, College of Life and Environmental Sciences, Shanghai Normal University, Shanghai, 200234 China
| | - Jian Zhao
- />Development Center of Plant Germplasm Resources, College of Life and Environmental Sciences, Shanghai Normal University, Shanghai, 200234 China
- />Shanghai Institute for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200032 China
| | - Dongzhi Lin
- />Development Center of Plant Germplasm Resources, College of Life and Environmental Sciences, Shanghai Normal University, Shanghai, 200234 China
| | - Jiaying Chen
- />Development Center of Plant Germplasm Resources, College of Life and Environmental Sciences, Shanghai Normal University, Shanghai, 200234 China
- />Shanghai Institute for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200032 China
| | - Jianlong Xu
- />Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, 12 South Zhong-Guan Cun Street, Beijing, 100081 China
| | - Hua Zhou
- />Development Center of Plant Germplasm Resources, College of Life and Environmental Sciences, Shanghai Normal University, Shanghai, 200234 China
- />Present address: Agricultural Faculty, Hokkaido University, Sappro, 060-0817 Japan
| | - Sheng Teng
- />Shanghai Institute for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200032 China
| | - Yanjun Dong
- />Development Center of Plant Germplasm Resources, College of Life and Environmental Sciences, Shanghai Normal University, Shanghai, 200234 China
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Wang Y, Zhang J, Shi X, Peng Y, Li P, Lin D, Dong Y, Teng S. Temperature-sensitive albino gene TCD5, encoding a monooxygenase, affects chloroplast development at low temperatures. J Exp Bot 2016; 67:5187-202. [PMID: 27531886 PMCID: PMC5014166 DOI: 10.1093/jxb/erw287] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Chloroplasts are essential for photosynthesis and play critical roles in plant development. In this study, we characterized the temperature-sensitive chlorophyll-deficient rice mutant tcd5, which develops albino leaves at low temperatures (20 °C) and normal green leaves at high temperatures (32 °C). The development of chloroplasts and etioplasts is impaired in tcd5 plants at 20 °C, and the temperature-sensitive period for the albino phenotype is the P4 stage of leaf development. The development of thylakoid membranes is arrested at the mid-P4 stage in tcd5 plants at 20 °C. We performed positional cloning of TCD5 and then complementation and knock-down experiments, and the results showed that the transcript LOC_Os05g34040.1 from the LOC_Os05g34040 gene corresponded to the tcd5 phenotype. TCD5 encodes a conserved plastid-targeted monooxygenase family protein which has not been previously reported associated with a temperature-sensitive albino phenotype in plants. TCD5 is abundantly expressed in young leaves and immature spikes, and low temperatures increased this expression. The transcription of some genes involved in plastid transcription/translation and photosynthesis varied in the tcd5 mutant. Although the phenotype and temperature dependence of the TCD5 orthologous mutant phenotype were different in rice and Arabidopsis, OsTCD5 could rescue the phenotype of the Arabidopsis mutant, suggesting that TCD5 function is conserved between monocots and dicots.
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Affiliation(s)
- Yufeng Wang
- Institute of Plant Physiology and Ecology, Shanghai Institute for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Jianhui Zhang
- Development Centre of Plant Germplasm Resources, College of Life and Environmental Sciences, Shanghai Normal University, Shanghai 200234, China
| | - Xiaoliang Shi
- Institute of Plant Physiology and Ecology, Shanghai Institute for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Yu Peng
- Institute of Plant Physiology and Ecology, Shanghai Institute for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Ping Li
- Institute of Plant Physiology and Ecology, Shanghai Institute for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Dongzhi Lin
- Development Centre of Plant Germplasm Resources, College of Life and Environmental Sciences, Shanghai Normal University, Shanghai 200234, China
| | - Yanjun Dong
- Development Centre of Plant Germplasm Resources, College of Life and Environmental Sciences, Shanghai Normal University, Shanghai 200234, China
| | - Sheng Teng
- Institute of Plant Physiology and Ecology, Shanghai Institute for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
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Teng S, Tebby C, Barcellini-Couget S, De Sousa G, Brochot C, Rahmani R, Pery ARR. Analysis of real-time mixture cytotoxicity data following repeated exposure using BK/TD models. Toxicol Appl Pharmacol 2016; 305:118-126. [PMID: 27317371 DOI: 10.1016/j.taap.2016.06.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Revised: 06/06/2016] [Accepted: 06/13/2016] [Indexed: 11/23/2022]
Abstract
Cosmetic products generally consist of multiple ingredients. Thus, cosmetic risk assessment has to deal with mixture toxicity on a long-term scale which means it has to be assessed in the context of repeated exposure. Given that animal testing has been banned for cosmetics risk assessment, in vitro assays allowing long-term repeated exposure and adapted for in vitro - in vivo extrapolation need to be developed. However, most in vitro tests only assess short-term effects and consider static endpoints which hinder extrapolation to realistic human exposure scenarios where concentration in target organs is varies over time. Thanks to impedance metrics, real-time cell viability monitoring for repeated exposure has become possible. We recently constructed biokinetic/toxicodynamic models (BK/TD) to analyze such data (Teng et al., 2015) for three hepatotoxic cosmetic ingredients: coumarin, isoeugenol and benzophenone-2. In the present study, we aim to apply these models to analyze the dynamics of mixture impedance data using the concepts of concentration addition and independent action. Metabolic interactions between the mixture components were investigated, characterized and implemented in the models, as they impacted the actual cellular exposure. Indeed, cellular metabolism following mixture exposure induced a quick disappearance of the compounds from the exposure system. We showed that isoeugenol substantially decreased the metabolism of benzophenone-2, reducing the disappearance of this compound and enhancing its in vitro toxicity. Apart from this metabolic interaction, no mixtures showed any interaction, and all binary mixtures were successfully modeled by at least one model based on exposure to the individual compounds.
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Affiliation(s)
- S Teng
- Models for Toxicology and Ecotoxicology Unit, INERIS, Parc Technologique Alata, BP 2, 60550 Verneuil-en-Halatte, France
| | - C Tebby
- Models for Toxicology and Ecotoxicology Unit, INERIS, Parc Technologique Alata, BP 2, 60550 Verneuil-en-Halatte, France
| | - S Barcellini-Couget
- ODESIA Neosciences, Sophia Antipolis, 400 route des chappes, 06903 Sophia Antipolis, France
| | - G De Sousa
- INRA, ToxAlim, 400 route des Chappes, BP, 167 06903 Sophia Antipolis, Cedex, France
| | - C Brochot
- Models for Toxicology and Ecotoxicology Unit, INERIS, Parc Technologique Alata, BP 2, 60550 Verneuil-en-Halatte, France
| | - R Rahmani
- INRA, ToxAlim, 400 route des Chappes, BP, 167 06903 Sophia Antipolis, Cedex, France
| | - A R R Pery
- AgroParisTech, UMR 1402 INRA-AgroParisTech Ecosys, 78850 Thiverval Grignon, France; INRA, UMR 1402 INRA-AgroParisTech Ecosys, 78850 Thiverval Grignon, France.
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Teng S, Barcellini-Couget S, Beaudouin R, Brochot C, Desousa G, Rahmani R, Pery A. BK/TD models for analyzing in vitro impedance data on cytotoxicity. Toxicol Lett 2015; 235:96-106. [DOI: 10.1016/j.toxlet.2015.03.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Revised: 03/24/2015] [Accepted: 03/27/2015] [Indexed: 02/01/2023]
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Lin D, Jiang Q, Zheng K, Chen S, Zhou H, Gong X, Xu J, Teng S, Dong Y. Mutation of the rice ASL2 gene encoding plastid ribosomal protein L21 causes chloroplast developmental defects and seedling death. Plant Biol (Stuttg) 2015; 17:599-607. [PMID: 25280352 DOI: 10.1111/plb.12271] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [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: 08/05/2014] [Accepted: 09/22/2014] [Indexed: 05/19/2023]
Abstract
The plastid ribosome proteins (PRPs) play important roles in plastid protein biosynthesis, chloroplast differentiation and early chloroplast development. However, the specialised functions of individual protein components of the chloroplast ribosome in rice (Oryza sativa) remain unresolved. In this paper, we identified a novel rice PRP mutant named asl2 (Albino seedling lethality 2) exhibiting an albino, seedling death phenotype. In asl2 mutants, the alteration of leaf colour was associated with chlorophyll (Chl) content and abnormal chloroplast development. Through map-based cloning and complementation, the mutated ASL2 gene was isolated and found to encode the chloroplast 50S ribosome protein L21 (RPL21c), a component of the chloroplast ribosome large subunit, which was localised in chloroplasts. ASL2 was expressed at a higher level in the plumule and leaves, implying its tissue-specific expression. Additionally, the expression of ASL2 was regulated by light. The transcript levels of the majority of genes for Chl biosynthesis, photosynthesis and chloroplast development were strongly affected in asl2 mutants. Collectively, the absence of functional ASL2 caused chloroplast developmental defects and seedling death. This report establishes the important role of RPL21c in chloroplast development in rice.
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Affiliation(s)
- D Lin
- Development Center of Plant Germplasm Resources, College of Life and Environment Sciences, Shanghai Normal University, Shanghai, China
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Lin D, Gong X, Jiang Q, Zheng K, Zhou H, Xu J, Teng S, Dong Y. The rice ALS3 encoding a novel pentatricopeptide repeat protein is required for chloroplast development and seedling growth. Rice (N Y) 2015; 8:17. [PMID: 25859292 PMCID: PMC4390607 DOI: 10.1186/s12284-015-0050-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2014] [Accepted: 03/24/2015] [Indexed: 05/18/2023]
Abstract
BACKGROUND Pentatricopeptide repeat (PPR) proteins play essential roles in modulating the expression of organelle genes and have expanded greatly in higher plants. However, molecular mechanisms of most rice PPR genes remain unclear. RESULTS In this study, a new rice PPR mutant, asl3 (albino seedling lethality3) exhibits an albino lethal phenotype at the seedling stage. This albino phenotype was associated with altered photosynthetic-pigment and chloroplast development. Map-based cloning showed that ASL3 encodes a novel rice PPR protein with 10 tandem PPR motifs, which localizes to the chloroplast. ASL3 showed tissue-specific expression, as it was highly expressed in the chlorenchyma, but expressed at much lower levels in roots and panicles. RNAi of ASL3 confirmed that ASL3 plays an essential role in the early development and chloroplast development in rice. Moreover, expression analysis revealed that the asl3 mutation severely affected the transcriptional levels of important genes associated with plastid translation machinery and photosynthesis, which may impair photosynthesis and finally led to the seedling death in asl3 mutant. These results evidenced the important role of ASL3 in the early development of rice, especially chloroplast development. CONCLUSIONS The ASL3 gene encoded a novel chloroplast-targeted PPR protein with 10 tandem PPR motifs in rice. Disruption of the ASL3 would lead to a defective chloroplast and seedling lethality, and affected expression levels of genes associated with chloroplast development and photosynthesis at early leaf stage of rice.
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Affiliation(s)
- Dongzhi Lin
- />Development Center of Plant Germplasm Resources, College of Life and Environment Sciences, Shanghai Normal University, Shanghai, 200234 China
| | - Xiaodi Gong
- />Development Center of Plant Germplasm Resources, College of Life and Environment Sciences, Shanghai Normal University, Shanghai, 200234 China
- />Present address: Institute of Genetics and Developmental Biology Chinese Academy of Sciences, No.1 West Beichen Road, Chaoyang District, Beijing, 100101 China
| | - Quan Jiang
- />Development Center of Plant Germplasm Resources, College of Life and Environment Sciences, Shanghai Normal University, Shanghai, 200234 China
| | - Kailun Zheng
- />Development Center of Plant Germplasm Resources, College of Life and Environment Sciences, Shanghai Normal University, Shanghai, 200234 China
| | - Hua Zhou
- />Development Center of Plant Germplasm Resources, College of Life and Environment Sciences, Shanghai Normal University, Shanghai, 200234 China
- />Present address: Agricultural Faculty, Hokkaido University, Sappro, 060-0817 Japan
| | - Jianlong Xu
- />Institute of Crop Science, National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, Beijing, 10081 China
| | - Sheng Teng
- />Institute of Plant Physiology and Ecology, Shanghai Institute for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200032 China
| | - Yanjun Dong
- />Development Center of Plant Germplasm Resources, College of Life and Environment Sciences, Shanghai Normal University, Shanghai, 200234 China
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Jiang Q, Ma X, Gong X, Zhang J, Teng S, Xu J, Lin D, Dong Y. The rice OsDG2 encoding a glycine-rich protein is involved in the regulation of chloroplast development during early seedling stage. Plant Cell Rep 2014; 33:733-44. [PMID: 24430865 DOI: 10.1007/s00299-013-1549-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Revised: 12/01/2013] [Accepted: 12/03/2013] [Indexed: 05/05/2023]
Abstract
OsDG2 gene encoded a novel chloroplast-targeted GRP in rice. Disruption of the OsDG2 would lead to delayed greening phenotype and affected expression levels of genes associated with chloroplast development at early leaf stage of rice. Glycine-rich proteins (GRPs) participate in various biological processes in plants. However, the evidence of GRPs involved in chloroplast development in plants is quite limited. In this study, we identified a rice GRP gene mutant named osdg2 (O ryza s ativa d elayed g reening 2), which exhibits delayed greening phenotype characterized as bright yellow leaves before the three-leaf stage and thereafter turns to normal green. Further study showed that the mutant phenotype was consistent with changes in chlorophyll content and chloroplast development. The rice OsDG2 gene, encoding a novel GRP protein, was located on chromosome 2 through map-based cloning method and confirmed by molecular complementation tests. Subcellular localization results showed that OsDG2 was targeted in chloroplasts. In addition, the OsDG2 transcripts were highly expressed in leaves and undetectable in other tissues, showing the tissue-specific expression. In osdg2 mutant, the expression levels of most genes associated with chloroplast development were severely decreased in the 3rd leaves, but almost recovered to wild-type level in the 4th leaves. Our findings indicated that the nuclear-encoded OsDG2 plays important roles in chloroplast development at early leaf stage of rice.
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Affiliation(s)
- Quan Jiang
- Development Center of Plant Germplasm Resources, College of Life and Environment Sciences, Shanghai Normal University, Shanghai, 200234, China
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Gong X, Su Q, Lin D, Jiang Q, Xu J, Zhang J, Teng S, Dong Y. The rice OsV4 encoding a novel pentatricopeptide repeat protein is required for chloroplast development during the early leaf stage under cold stress. J Integr Plant Biol 2014; 56:400-10. [PMID: 24289830 DOI: 10.1111/jipb.12138] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Accepted: 11/27/2013] [Indexed: 05/04/2023]
Abstract
Pentatricopeptide repeat (PPR) proteins, characterized by tandem arrays of a 35 amino acid motif, have been suggested to play central and broad roles in modulating the expression of organelle genes in plants. However, the molecular mechanisms of most rice PPR genes remains unclear. In this paper, we isolated and characterized a temperature-conditional virescent mutant, OsV4, in rice (Oryza sativa cultivar Jiahua1 (WT, japonica rice variety)). The mutant displays albino phenotype and abnormal chloroplasts at the three leaf stage, which gradually turns green after the four leaf stage at a low temperature (20 °C). But the mutant always develops green leaves and well-developed chloroplasts at a high temperature (32 °C). Genetic and molecular analyses uncovered that OsV4 encodes a novel chloroplast-targeted PPR protein including four PPR motifs. Further investigations show that the mutant phenotype is associated with changes in chlorophyll content and chloroplast development. The OsV4 transcripts only accumulate to high levels in young leaves, indicating that its expression is tissue-specific. In addition, transcript levels of some ribosomal components and plastid-encoded polymerase-dependent genes are dramatically reduced in the albino mutants grown at 20 °C. These findings suggest that OsV4 plays an important role during early chloroplast development under cold stress in rice.
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Affiliation(s)
- Xiaodi Gong
- Development Center of Plant Germplasm Resources, College of Life and Environmental Sciences, Shanghai Normal University, Shanghai, 200234, China
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Li P, Zhou H, Shi X, Yu B, Zhou Y, Chen S, Wang Y, Peng Y, Meyer RC, Smeekens SC, Teng S. The ABI4-induced Arabidopsis ANAC060 transcription factor attenuates ABA signaling and renders seedlings sugar insensitive when present in the nucleus. PLoS Genet 2014; 10:e1004213. [PMID: 24625790 PMCID: PMC3953025 DOI: 10.1371/journal.pgen.1004213] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Accepted: 01/15/2014] [Indexed: 01/06/2023] Open
Abstract
Seedling establishment is inhibited on media containing high levels (∼ 6%) of glucose or fructose. Genetic loci that overcome the inhibition of seedling growth on high sugar have been identified using natural variation analysis and mutant selection, providing insight into sugar signaling pathways. In this study, a quantitative trait locus (QTL) analysis was performed for seedling sensitivity to high sugar in a Col/C24 F2 population of Arabidopsis thaliana. A glucose and fructose-sensing QTL, GSQ11, was mapped through selective genotyping and confirmed in near-isogenic lines in both Col and C24 backgrounds. Allelism tests and transgenic complementation showed that GSQ11 lies within the ANAC060 gene. The Col ANAC060 allele confers sugar insensitivity and was dominant over the sugar-sensitive C24 allele. Genomic and mRNA analyses showed that a single-nucleotide polymorphism (SNP) in Col ANAC060 affects the splicing patterns of ANAC060 such that 20 additional nucleotides are present in the mRNA. The insertion created a stop codon, resulting in a truncated ANAC60 protein lacking the transmembrane domain (TMD) that is present in the C24 ANAC060 protein. The absence of the TMD results in the nuclear localization of ANAC060. The short version of the ANAC060 protein is found in ∼ 12% of natural Arabidopsis accessions. Glucose induces GSQ11/ANAC060 expression in a process that requires abscisic acid (ABA) signaling. Chromatin immunoprecipitation-qPCR and transient expression analysis showed that ABI4 directly binds to the GSQ11/ANAC060 promoter to activate transcription. Interestingly, Col ANAC060 reduced ABA sensitivity and Glc-induced ABA accumulation, and ABI4 expression was also reduced in Col ANAC060 lines. Thus, the sugar-ABA signaling cascade induces ANAC060 expression, but the truncated Col ANAC060 protein attenuates ABA induction and ABA signaling. This negative feedback from nuclear ANAC060 on ABA signaling results in sugar insensitivity.
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Affiliation(s)
- Ping Li
- Laboratory of Photosynthesis and Environmental Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, The Chinese Academy of Sciences, Shanghai, China
| | - Hua Zhou
- Laboratory of Photosynthesis and Environmental Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, The Chinese Academy of Sciences, Shanghai, China
| | - Xiaoliang Shi
- Laboratory of Photosynthesis and Environmental Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, The Chinese Academy of Sciences, Shanghai, China
| | - Bo Yu
- Laboratory of Photosynthesis and Environmental Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, The Chinese Academy of Sciences, Shanghai, China
| | - Yan Zhou
- Laboratory of Photosynthesis and Environmental Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, The Chinese Academy of Sciences, Shanghai, China
| | - Suli Chen
- Laboratory of Photosynthesis and Environmental Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, The Chinese Academy of Sciences, Shanghai, China
| | - Yufeng Wang
- Laboratory of Photosynthesis and Environmental Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, The Chinese Academy of Sciences, Shanghai, China
| | - Yu Peng
- Laboratory of Photosynthesis and Environmental Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, The Chinese Academy of Sciences, Shanghai, China
| | - Rhonda C. Meyer
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Stadt Seeland OT Gatersleben, Germany
| | - Sjef C. Smeekens
- Department of Molecular Plant Physiology, Utrecht University, Utrecht, The Netherlands
- Centre for BioSystems Genomics, Wageningen, The Netherlands
| | - Sheng Teng
- Laboratory of Photosynthesis and Environmental Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, The Chinese Academy of Sciences, Shanghai, China
- * E-mail:
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Jiang Q, Mei J, Gong XD, Xu JL, Zhang JH, Teng S, Lin DZ, Dong YJ. Importance of the rice TCD9 encoding α subunit of chaperonin protein 60 (Cpn60α) for the chloroplast development during the early leaf stage. Plant Sci 2014; 215-216:172-9. [PMID: 24388528 DOI: 10.1016/j.plantsci.2013.11.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [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: 07/08/2013] [Revised: 11/03/2013] [Accepted: 11/06/2013] [Indexed: 05/05/2023]
Abstract
The chloroplast development governs plant growth and metabolism. This study characterized a novel rice thermo-sensitive chloroplast development 9 (tcd9) mutant, which exhibited the albino phenotype before the 3-leaf stage grown below 24 °C whereas displayed normal green at over 28 °C or even at 20 °C after 5-leaf stage. The obvious decrease in Chl levels, abnormal chloroplasts with few thylakoid lamella and abnormal thylakoids were observed for the albino mutant seedlings at low temperature, but the mutant was apparently normal green at high temperature, suggesting the thermo-sensitivity of albino phenotype. Genetic analysis showed that the albino phenotype was controlled by a single recessive nuclear gene (tcd9). The map-based cloning and molecular complementation tests revealed that the mutation of TCD9 encoding α subunit of Cpn60 protein (Cpn60α), localized in chloroplasts, was responsible for albino phenotype. In addition, TCD9 exhibited the high expression in all tested tissues, especially in young leaves. The transcriptional analysis indicated that all expression levels of the studied genes related to chloroplast development in tcd9 mutant were seriously affected in the albino seedlings at 20 °C, whereas some of them recovered into normal levels in green-seedlings at 32 °C. Our observations suggest that the nuclear-encoded Cpn60α protein TCD9 plays a crucial role in chloroplast development at early leaf stage of rice.
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Affiliation(s)
- Quan Jiang
- Development Center of Plant Germplasm Resources, College of Life and Environment Sciences, Shanghai Normal University, Shanghai 200234, China
| | - Jie Mei
- Development Center of Plant Germplasm Resources, College of Life and Environment Sciences, Shanghai Normal University, Shanghai 200234, China
| | - Xiao-Di Gong
- Development Center of Plant Germplasm Resources, College of Life and Environment Sciences, Shanghai Normal University, Shanghai 200234, China
| | - Jian-Long Xu
- The Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, 12 South Zhong-Guan Cun Street, Beijing 100081, China
| | - Jian-Hui Zhang
- Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Sheng Teng
- Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Dong-Zhi Lin
- Development Center of Plant Germplasm Resources, College of Life and Environment Sciences, Shanghai Normal University, Shanghai 200234, China.
| | - Yan-Jun Dong
- Development Center of Plant Germplasm Resources, College of Life and Environment Sciences, Shanghai Normal University, Shanghai 200234, China.
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Gong X, Jiang Q, Xu J, Zhang J, Teng S, Lin D, Dong Y. Disruption of the rice plastid ribosomal protein s20 leads to chloroplast developmental defects and seedling lethality. G3 (Bethesda) 2013. [PMID: 23979931 DOI: 10.1534/g3.113.007856/-/dc1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
Plastid ribosomal proteins (PRPs) are essential for ribosome biogenesis, plastid protein biosynthesis, chloroplast differentiation, and early chloroplast development. This study identifies the first rice PRP mutant, asl1 (albino seedling lethality1), which exhibits an albino lethal phenotype at the seedling stage. This albino phenotype was associated with altered chlorophyll (Chl) content and chloroplast development. Map-based cloning revealed that ASL1 encodes PRP S20 (PRPS20), which localizes to the chloroplast. ASL1 showed tissue-specific expression, as it was highly expressed in plumule and young seedlings but expressed at much lower levels in other tissues. In addition, ASL1 expression was regulated by light. The transcript levels of nuclear genes for Chl biosynthesis and chloroplast development were strongly affected in asl1 mutants; transcripts of some plastid genes for photosynthesis were undetectable. Our findings indicate that nuclear-encoded PRPS20 plays an important role in chloroplast development in rice.
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Affiliation(s)
- Xiaodi Gong
- Development Center of Plant Germplasm Resources, College of Life and Environmental Sciences, Shanghai Normal University, Shanghai 200234
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Zhang H, Wu K, Wang Y, Peng Y, Hu F, Wen L, Han B, Qian Q, Teng S. A WUSCHEL-like homeobox gene, OsWOX3B responses to NUDA/GL-1 locus in rice. Rice (N Y) 2012; 5:30. [PMID: 27234248 PMCID: PMC5520835 DOI: 10.1186/1939-8433-5-30] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Accepted: 09/27/2012] [Indexed: 05/12/2023]
Abstract
BACKGROUND Most of the rice varieties are pubescent. However, the presence of trichomes is an undesirable characteristic in rice production because trichomes can cause atmospheric pollution. The use of glabrous rice varieties represents a solution to this problem. Yunnan Nuda Rice, a glabrous cultivar that constitutes approximately 20% of rice germplasms in Yunnan can provide important recourse for breeding of glabrous rice varieties. RESULTS The "Nuda" phenotype in Yunnan Nuda Rice was found to be controlled by a single recessive allelic gene within the well-characterized GL-1 locus. A high-resolution genetic and physical map was constructed using 1,192 Nuda individuals from the F2 population that was delivered from the cross between the Yunnan Nuda variety HMK and the pubescent TN1 variety. The NUDA/GL-1 gene was mapped to a 28.5 kb region containing six annotated genes based on the Nipponbare genomic sequence. By comparing the sequences and expression patterns of different pubescent and glabrous varieties, LOC_Os05g02730, a WUSCHEL-like homeobox gene (OsWOX3B) was identified as the candidate gene. This hypothesis was confirmed by RNA interference (RNAi) and transgenic complementation. Trichome deficiency in RNAi lines was associated with increased efficiency of grain packaging but did not affect the main agronomic traits. CONCLUSION NUDA/GL-1 locus encodes OsWOX3B gene.
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Affiliation(s)
- Honglei Zhang
- Shanghai Institute of Plant Physiology and Ecology, Shanghai Institute for Biological Sciences, The Chinese Academy of Sciences, Shanghai, 200032 China
| | - Kun Wu
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 310006 China
| | - Yufeng Wang
- Shanghai Institute of Plant Physiology and Ecology, Shanghai Institute for Biological Sciences, The Chinese Academy of Sciences, Shanghai, 200032 China
| | - Yu Peng
- Shanghai Institute of Plant Physiology and Ecology, Shanghai Institute for Biological Sciences, The Chinese Academy of Sciences, Shanghai, 200032 China
| | - Fengyi Hu
- Institute of Food Crops, Yunnan Academy of Agricultural Sciences, Kunming, 650205 China
| | - Lu Wen
- Puer Agricultural Research Institute, Puer, 66500 China
| | - Bin Han
- Shanghai Institute of Plant Physiology and Ecology, Shanghai Institute for Biological Sciences, The Chinese Academy of Sciences, Shanghai, 200032 China
| | - Qian Qian
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 310006 China
| | - Sheng Teng
- Shanghai Institute of Plant Physiology and Ecology, Shanghai Institute for Biological Sciences, The Chinese Academy of Sciences, Shanghai, 200032 China
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Peng Y, Zhang Y, Lv J, Zhang J, Li P, Shi X, Wang Y, Zhang H, He Z, Teng S. Characterization and fine mapping of a novel rice albino mutant low temperature albino 1. J Genet Genomics 2012; 39:385-96. [PMID: 22884095 DOI: 10.1016/j.jgg.2012.05.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2012] [Revised: 04/29/2012] [Accepted: 05/02/2012] [Indexed: 11/16/2022]
Abstract
Albino mutants are useful genetic resource for studying chlorophyll biosynthesis and chloroplast development and cloning genes involved in these processes in plants. Here we report a novel rice mutant low temperature albino 1 (lta1) that showed albino leaves before 4-leaf stage when grown under temperature lower than 20°C, but developed normal green leaves under temperature higher than 24°C or similar morphological phenotypes in dark as did the wild-type (WT). Our analysis showed that the contents of chlorophylls and chlorophyll precursors were remarkably decreased in the lta1 mutant under low temperature compared to WT. Transmission electron microscope observation revealed that chloroplasts were defectively developed in the albino lta1 leaves, which lacked of well-stacked granum and contained less stroma lamellae. These results suggested that the lta1 mutation may delay the light-induced thylakoid assembly under low temperature. Genetic analysis indicated that the albino phenotype was controlled by a single recessive locus. Through map-based approach, we finally located the Lta1 gene to a region of 40.3 kb on the short arm of chromosome 11. There are 8 predicted open reading frames (ORFs) in this region and two of them were deleted in lta1 genome compared with the WT genome. The further characterization of the Lta1 gene would provide a good approach to uncover the novel molecular mechanisms involved in chloroplast development under low temperature stress.
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Affiliation(s)
- Yu Peng
- Institute of Plant Physiology & Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
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Teng S, Whitney D. The auditory flash-drag effect: Distortion of auditory space by visual motion. J Vis 2011. [DOI: 10.1167/11.11.794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Finck RH, Davis RJ, Teng S, Goldfinger D, Ziman AF, Lu Q, Yuan S. Performance of an automated solid-phase red cell adherence system compared with that of a manual gel microcolumn assay for the identification of antibodies eluted from red blood cells. Immunohematology 2011; 27:1-5. [PMID: 22356479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
IgG antibodies coating red blood cells (RBCs) can be removed by elution procedures and their specificity determined by antibody identification studies. Although such testing is traditionally performed using the tube agglutination assay, prior studies have shown that the gel microcolumn (GMC) assay may also be used with comparable results. The purpose of this study was to compare an automated solid-phase red cell adherence (SPRCA) system with a GMC assay for the detection of antibodies eluted from RBCs. Acid eluates from 51 peripheral blood (PB) and 7 cord blood (CB) samples were evaluated by both an automated SPRCA instrument and a manual GMC assay. The concordance rate between the two systems for peripheral RBC samples was 88.2 percent (45 of 51), including cases with alloantibodies (n = 8), warm autoantibodies (n = 12), antibodies with no identifiable specificity (n = 2), and negative results (n = 23). There were six discordant cases, of which four had alloantibodies (including anti-Jka, -E, and -e) demonstrable by the SPRCA system only. In the remaining 2 cases, anti-Fya and antibodies with no identifiable specificity were demonstrable by the GMC assay only. All seven CB specimens produced concordant results, showing anti-A (n = 3), -B (n = 1), maternal anti-Jka (n = 2), or a negative result (n = 1). Automated SPRCA technology has a performance that is comparable with that of a manual GMC assay for identifying antibodies eluted from PB and CB RBCs.
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Affiliation(s)
- R H Finck
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, 10833 Le Conte Avenue, CHS A7-149, Box 107, Los Angeles, CA 90095, USA
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Kumar P, Fischbach NA, Brahmer JR, Spigel DR, Beatty S, Teng S, Flick ED, Sing A, Lynch TJ. Baseline (BL) radiographic characteristics and severe pulmonary hemorrhage (SPH) in bevacizumab (BV)-treated non-small cell lung cancer (NSCLC) patients (pt): Results from ARIES, an observational cohort study (OCS). J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.7619] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Wozniak AJ, Garst J, Jahanzeb M, Kosty MP, Vidaver R, Beatty S, Teng S, Flick ED, Sing A, Lynch TJ. Clinical outcomes (CO) for special populations of patients (pts) with advanced non-small cell lung cancer (NSCLC): Results from ARIES, a bevacizumab (BV) observational cohort study (OCS). J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.7618] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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44
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Teng S, Whitney D. Auditory stimuli elicit spatially specific responses in visual cortex. J Vis 2010. [DOI: 10.1167/7.9.328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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45
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Teng S, Whitney D. Position discrimination of auditory stimuli in early visual cortex. J Vis 2010. [DOI: 10.1167/8.6.166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Fang ZW, Chen J, Teng S, Chen Y, Xue RF. Analysis of soft tissue sarcomas in 1118 cases. Chin Med J (Engl) 2009; 122:51-53. [PMID: 19187617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023] Open
Abstract
BACKGROUND It is important to analyze and compare soft tissue sarcomas periodically so as to update the incidence, the clinical diagnosis, the treatment, and the ongoing research. The present study was conducted to determine the relative frequency of each type of soft tissue sarcoma. METHODS A total of 1118 cases of primary soft tissue sarcomas treated between January 1993 and December 2006 were evaluated in a retrospective analysis. RESULTS According to the pathologic grouping, the diseases with the highest proportion were malignant fibrous histiocytomas (35.24%), synovial sarcomas (17.08%), liposarcomas (16.28%), and rhabdomyosarcomas (12.61%). Soft tissue sarcomas were detected in every age group and occurred in all parts of the body. The number of cases increased gradually over the years. CONCLUSIONS Malignant fibrous histiocytomas had the highest frequency among the soft tissue sarcomas. The number of cases increased gradually over the years.
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Affiliation(s)
- Zhi-wei Fang
- Department of Orthopedic Oncology, Peking University School of Oncology, Beijing Cancer Hospital & Institute, Beijiing, China.
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Teng S, Rognoni S, Bentsink L, Smeekens S. The Arabidopsis GSQ5/DOG1 Cvi allele is induced by the ABA-mediated sugar signalling pathway, and enhances sugar sensitivity by stimulating ABI4 expression. Plant J 2008; 55:372-81. [PMID: 18410483 DOI: 10.1111/j.1365-313x.2008.03515.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
ABI4 encodes an AP2 family transcription factor that is a central regulator in sugar responsive gene expression in plants. Sugar-induced ABI4 regulates plant genes essential for photosynthesis, and carbon, nitrogen and lipid metabolism. ABI4 activity is induced via the ABA-mediated sugar signalling pathway, which is initiated by the glucose sensing protein hexokinase. Natural variation in sugar sensitivity was used to identify new loci involved in sugar signalling. Five quantitative trait loci (QTLs) for glucose sensitivity (GSQ1-GSQ5) were identified in a Ler/Cvi recombinant inbred line (RIL) population. The GSQ3, GSQ4 and GSQ5 loci are positioned in regions not previously associated with known sugar-sensing genes. GSQ5 was fine mapped and cloned using a candidate-gene approach. The GSQ5 locus was shown to encode the DELAY OF GERMINATION 1 (DOG1) gene. DOG1 was previously identified as a major locus in seed dormancy control. Glucose addition induced the expression of the GSQ5/DOG1 Cvi allele, whereas the Ler and Col alleles did not respond to glucose. Positive feedback was observed between the ABA-mediated sugar signalling pathway and the GSQ5/DOG1 Cvi allele. Expression of the GSQ5/DOG1 Cvi allele requires the ABA-mediated sugar signalling pathway, of which ABI4 is an important component. In addition, sugar induction of ABI4 was promoted by the GSQ5/DOG1 Cvi allele.
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Affiliation(s)
- Sheng Teng
- Molecular Plant Physiology Group, Institute of Environmental Biology, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
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Lynch TJ, Brahmer J, Fischbach N, Garst J, Kumar P, Spigel DR, Teng S, Vidaver R, Wang L, Navarro W. Preliminary treatment patterns and safety outcomes for non-small cell lung cancer (NSCLC) from ARIES, a bevacizumab treatment observational cohort study (OCS). J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.8077] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Teng S, Michonova-Alexova E, Alexov E. Approaches and resources for prediction of the effects of non-synonymous single nucleotide polymorphism on protein function and interactions. Curr Pharm Biotechnol 2008; 9:123-33. [PMID: 18393868 DOI: 10.2174/138920108783955164] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Almost all (99.9%) nucleotide bases are exactly the same in all people, however, the remaining 0.1% account for about 1.4 million locations where single-base DNA differences/polymorphisms (SNPs) occur in humans. Some of these SNPs, called non-synonymous SNPs (nsSNPs), result in a change of the amino acid sequences of the corresponding proteins affecting protein functions and interactions. This review summarizes the plausible mechanisms that nsSNPs may affect the normal cellular function. It outlines the approaches that have been developed in the past to predict the effects caused by nsSNPs with special emphasis on the methods that use structural information. The review provides systematic information on the available resources for predicting the effects of nsSNPs and includes a comprehensive list of existing SNP databases and their features. While nsSNPs resulting in amino acid substitution in the core of a protein may affect protein stability irreversibly, the effect of an nsSNP resulting to a mutation at the surface of a protein or at the interface of protein-protein complexes, could, in principle be, subject of drug therapy. The importance of understanding the effects caused by nsSNP mutations at the protein-protein and protein-DNA interfaces is outlined.
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Affiliation(s)
- S Teng
- Department of Physics, Clemson University, Clemson, SC 29634, USA
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Abstract
BACKGROUND AND PURPOSE Activation of the pregnane X receptor (PXR) has been shown to protect against cholestatic hepatotoxicity. As PXR alters the expression of numerous hepatic bile acid transporters, we sought to delineate their potential role in hepatoprotection. EXPERIMENTAL APPROACH Wild-type (PXR+/+) and PXR-null (PXR-/-) mice were fed a 1% cholic acid (CA) diet with or without the PXR activator, PCN. Liver function was assessed along with the corresponding changes in hepatic gene expression. KEY RESULTS CA administration caused significant hepatotoxicity in PXR+/+ mice and was associated with induction of several FXR and PXR regulated genes, which encode for bile acid transport and metabolizing proteins. Compared to CA alone, co-administration of PCN to CA-fed PXR+/+ mice significantly decreased hepatotoxicity and was associated with induction of MRP3 mRNA as well as CYP3A11 mRNA and functional activity. Unexpectedly, PXR-/- mice, which expressed significantly higher basal and CA-induced levels of MRP2, MRP3, OSTalpha, OSTbeta, OATP2 and CYP3A11, were dramatically less sensitive to CA hepatotoxicity than PXR+/+ mice. CONCLUSIONS Protection of PXR+/+ mice against CA-induced hepatotoxicity by PCN is associated with the induction of MRP3 and CYP3A11 expression. Resistance against CA-induced hepatotoxicity in PXR-/- mice may result from higher basal and induced expression of bile acid transporters, particularly MRP3. These findings emphasize the importance of transport by MRP3 and metabolism as major protective pathways against cholestatic liver injury.
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Affiliation(s)
- S Teng
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto Toronto, Ontario, Canada
| | - M Piquette-Miller
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto Toronto, Ontario, Canada
- Author for correspondence:
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