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Su TH, Shen Y, Chiang YY, Liu YT, You HM, Lin HC, Kung KN, Huang YM, Lai CM. Species selection as a key factor in the afforestation of coastal salt-affected lands: Insights from pot and field experiments. J Environ Manage 2024; 360:121126. [PMID: 38761629 DOI: 10.1016/j.jenvman.2024.121126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 05/03/2024] [Accepted: 05/08/2024] [Indexed: 05/20/2024]
Abstract
Soil salinization is a significant global issue that leads to land degradation and loss of ecological function. In coastal areas, salinization hampers vegetation growth, and forestation efforts can accelerate the recovery of ecological functions and enhance resilience to extreme climates. However, the salinity tolerance of tree species varies due to complex biological factors, and results between lab/greenhouse and field studies are often inconsistent. Moreover, in salinized areas affected by extreme climatic and human impacts, afforestation with indigenous species may face adaptability challenges. Therefore, it is crucial to select appropriate cross-species salinity tolerance indicators that have been validated in the field to enhance the success of afforestation and reforestation efforts. This study focuses on five native coastal tree species in Taiwan, conducting afforestation experiments on salt-affected soils mixed with construction and demolition waste. It integrates short-term controlled experiments with potted seedlings and long-term field observations to establish growth performance and physiological and biochemical parameters indicative of salinity tolerance. Results showed that Heritiera littoralis Dryand. exhibited the highest salinity tolerance, accumulating significant leaf proline under increased salinity. Conversely, Melia azedarach Linn. had the lowest tolerance, evidenced by complete defoliation and reduced biomass under salt stress. Generally, the field growth performance of these species aligns with the results of short-term pot experiments. Leaf malondialdehyde content from pot experiments proved to be a reliable cross-species salinity tolerance indicator, correlating negatively with field relative height growth and survival rates. Additionally, parameters related to the photosynthetic system or water status, measured using portable devices, also moderately indicated field survival, aiding in identifying potential salt-tolerant tree species. This study underscores the pivotal role of species selection in afforestation success, demonstrating that small-scale, short-term salinity control experiments coupled with appropriate assessment tools can effectively identify species suitable for highly saline and degraded environments. This approach not only increases the success of afforestation but also conserves resources needed for field replanting and maintenance, supporting sustainable development goals.
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Affiliation(s)
- Tzu-Hao Su
- Silviculture Division, Taiwan Forestry Research Institute, Taipei City, 100060, Taiwan
| | - Yang Shen
- Department of Forestry, National Chung Hsing University, Taichung City, 402202, Taiwan
| | - Yao-Yu Chiang
- Silviculture Division, Taiwan Forestry Research Institute, Taipei City, 100060, Taiwan
| | - Yu-Ting Liu
- Department of Forestry, National Chung Hsing University, Taichung City, 402202, Taiwan
| | - Han-Ming You
- Silviculture Division, Taiwan Forestry Research Institute, Taipei City, 100060, Taiwan
| | - Hung-Chih Lin
- Silviculture Division, Taiwan Forestry Research Institute, Taipei City, 100060, Taiwan
| | - Kuan-Ning Kung
- Chiayi Research Center, Taiwan Forestry Research Institute, Chiayi City, 600054, Taiwan
| | - Yao-Moan Huang
- Forest Ecology Division, Taiwan Forestry Research Institute, Taipei City, 100060, Taiwan
| | - Chih-Ming Lai
- Silviculture Division, Taiwan Forestry Research Institute, Taipei City, 100060, Taiwan.
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Cheng Q, Han Y, Huang YM, Ji SS, Li J, Diao BW, Liang WL. [Regulation mechanism of the quorum sensing regulator AphA on the type Ⅵ secretion system VflT6SS2 in Vibrio fluvialis]. Zhonghua Liu Xing Bing Xue Za Zhi 2024; 45:566-573. [PMID: 38678354 DOI: 10.3760/cma.j.cn112338-20231215-00354] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/29/2024]
Abstract
Objective: To explore the regulation mechanism of the quorum sensing regulator AphA on the functional activity of type Ⅵ secretion system VflT6SS2 in Vibrio fluvialis. Methods: Western Blot analysis was used to detect the relative expression and secretion of VflT6SS2 signature component hemolysin-coregulated protein (Hcp) in wild type (WT), ΔaphA, and corresponding complementary strains. Quantitative reverse transcription PCR and luminescence activity assay of the promoter-lux fusion system was used to measure the mRNA expression levels and promoter activity of the VflT6SS2 core and accessory gene-cluster representative genes tssB2, hcp (tssD2) and vgrG (tssI2), and the quorum sensing regulator HapR in WT and ΔaphA strains. A point mutation experiment combined with a luminescence activity assay was used to verify the regulatory binding site of AphA in the tssD2b promoter region. Electrophoretic mobility shift assay (EMSA) was used to determine AphA binding to the hapR promoter. Results: The mRNA expression levels of tssB2, hcp(tssD2), vgrG (tssI2), and hapR as well as the protein expression and secretion levels of Hcp in ΔaphA strain, were significantly higher than those in the WT strain. The promoter activities of the VflT6SS2 core cluster, tssD2a, tssI2a, and hapR were higher in ΔaphA strain than in the WT strain, while the promoter activity of tssD2b showed the opposite trend. The promoter sequence analysis of tssD2a and tssD2b found significant differences in the region from -335 bp to -229 bp, and two potential AphA binding sites on tssD2b. The promoter activity of tssD2b decreased significantly after the point mutation of the two potential AphA binding sites. EMSA results showed that AphA binds directly to the promoter region of hapR. Conclusions: AphA indirectly inhibits the regulation of the VflT6SS2 core and accessory gene clusters at the promoter level by directly repressing the expression of hapR. AphA showed opposite regulation patterns for tssD2a and tssD2b, and AphA could positively regulate the expression of tssD2b by directly binding to the tssD2b promoter region (-335 bp to -229 bp).
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Affiliation(s)
- Q Cheng
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y Han
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y M Huang
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - S S Ji
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - J Li
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - B W Diao
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - W L Liang
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
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Jiang DL, Pan JQ, Li JQ, Zhou XL, Shen X, Xu DN, Tian YB, Huang YM. Effects of gonadotropin-inhibitory hormone on testicular development and reproduction-related gene expression in roosters. Anim Biotechnol 2023; 34:4105-4115. [PMID: 37842944 DOI: 10.1080/10495398.2023.2266645] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 09/28/2023] [Indexed: 10/17/2023]
Abstract
Gonadotropin-inhibitory hormone (GnIH) plays a crucial role in regulating reproduction in the hypothalamus of poultry and has been intensely investigated since its discovery. This study aimed to assess the effects of GnIH on testicular development, as well as on reproduction-related hormone release and gene expression levels in roosters. The administration of exogenous GnIH resulted in a significant reduction in testis weight, testis volume and semen quality (p < 0.05). Additionally, exogenous GnIH significantly up-regulates the expression of GnIH, and down-regulates the expression of PRL (p < 0.05). GnIH application also decreased the GnRH, vasoactive intestinal peptide (VIP) and luteinizing hormone β subunit(LHβ)gene expression levels. Meanwhile, by neutralizing the effects of endogenous GnIH through immunization, testicular development on day 150 in roosters was significantly promoted. Compared to the control condition, GnIH immunization significantly down-regulated the expression of the VIP and PRL genes (p < 0.05). In conclusion, we found that exogenous GnIH treatment inhibited testicular development, reduces PRL gene expression, and suppressed reproductive performance in roosters. Conversely, GnIH immunization down-regulated VIP and PRL genes, activates the reproductive system, and promotes the reproductive activity and testicular development of roosters.
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Affiliation(s)
- D L Jiang
- College of Animal Science & Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, PR China
- Guangdong Province Key Laboratory of Waterfowl Healthy Breeding, Guangzhou, PR China
| | - J Q Pan
- College of Animal Science & Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, PR China
- Guangdong Province Key Laboratory of Waterfowl Healthy Breeding, Guangzhou, PR China
| | - J Q Li
- College of Animal Science & Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, PR China
- Guangdong Province Key Laboratory of Waterfowl Healthy Breeding, Guangzhou, PR China
- Technology Center of Zhanjiang Customs District, Zhanjiang, PR China
| | - X L Zhou
- College of Animal Science & Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, PR China
- Guangdong Province Key Laboratory of Waterfowl Healthy Breeding, Guangzhou, PR China
| | - X Shen
- College of Animal Science & Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, PR China
- Guangdong Province Key Laboratory of Waterfowl Healthy Breeding, Guangzhou, PR China
| | - D N Xu
- College of Animal Science & Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, PR China
- Guangdong Province Key Laboratory of Waterfowl Healthy Breeding, Guangzhou, PR China
| | - Y B Tian
- College of Animal Science & Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, PR China
- Guangdong Province Key Laboratory of Waterfowl Healthy Breeding, Guangzhou, PR China
| | - Y M Huang
- College of Animal Science & Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, PR China
- Guangdong Province Key Laboratory of Waterfowl Healthy Breeding, Guangzhou, PR China
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He F, Li T, Li YF, Tang P, Sang LN, Huang YM, Sun L, Liu L. [Clinical features of SF3B1 mutation in patients with myelodysplastic syndrome with excess blasts]. Zhonghua Nei Ke Za Zhi 2023; 62:681-687. [PMID: 37263951 DOI: 10.3760/cma.j.cn112138-20220902-00650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Objective: To exploring the clinical features of SF3B1-mutated myelodysplastic syndrome with excess blasts (MDS-EB) and analyzing the association between SF3B1 mutation, and efficacy and prognostic significance for patients with MDS-EB. Methods: This was a retrospective case series study. The clinical data of 266 patients with MDS-EB diagnosed in the First Affiliated Hospital of Zhengzhou University between April 2016 and November 2021 were analyzed. The observed indicators included blood routine counts, mutated genes, overall response rate (ORR), overall survival (OS), progression-free survival (PFS), and leukemia-free survival (LFS). The Kaplan-Meier method was used to depict the survival curves. The Log-rank test method was equally used to compare survival across groups and performed the Cox proportional hazard regression model for prognostic analysis. Results: In 266 patients with MDS-EB, 166 (62.4%) were men, and the median age was 57 (17-81) years. Moreover, there were included 26 and 240 patients in the SF3B1-mutated and SF3B1 wild-type groups. Patients in the SF3B1-mutated group were older [median age 65 (51, 69) years vs. 56 (46, 66) years, P=0.033], had higher white blood cell (WBC) counts [3.08 (2.35, 4.78) × 109/L vs. 2.13 (1.40, 3.77) × 109/L], platelet (PLT) counts [122.5 (50.5, 215.0) ×109/L vs. 49.0 (24.3, 100.8) × 109/L], absolute neutrophil counts (ANC) [1.83 (1.01, 2.88) × 109/L vs. 0.80 (0.41, 1.99) × 109/L]and occurrence of DNMT3A mutation [23.1% (6/26) vs. 6.7% (16/240)] (all P<0.05). The ORR were similar in both groups after 2 and 4 cycles of therapy (P=0.348, P=1.000). Moreover, the LFS (P=0.218), PFS (P=0.179) and OS (P=0.188) were similar across the groups. Univariate Cox analysis revealed that SF3B1 mutation did not affect the prognosis of patients with MDS-EB (OS: P=0.193; PFS: P=0.184). Conclusions: Patients with SF3B1 mutation were older, with greater WBC, PLT, and ANC, and SF3B1 mutation easily co-occurred with DNMT3A mutation. From this model, there were no significant differences in efficacy and survival of MDS-EB with or without SF3B1 mutation.
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Affiliation(s)
- F He
- Department of Hematology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - T Li
- Department of Hematology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Y F Li
- Department of Hematology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - P Tang
- Department of Hematology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - L N Sang
- Department of Hematology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Y M Huang
- Department of Hematology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - L Sun
- Department of Hematology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - L Liu
- Department of Hematology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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Chen CW, Lindsay S, Nitta J, Rouhan G, Sundue M, Perrie LR, Huang YM, Chiou WL, Chung KF. Systematics and biogeography of the Old World fern genus Antrophyum. Cladistics 2023. [PMID: 37079431 DOI: 10.1111/cla.12538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 03/07/2023] [Accepted: 03/21/2023] [Indexed: 04/21/2023] Open
Abstract
Antrophyum is one of the largest genera of vittarioid ferns (Pteridaceae) and is most diverse in tropical Asia and the Pacific Islands, but also occurs in temperate Asia, Australia, tropical Africa and the Malagasy region. The only monographic study of Antrophyum was published more than a century ago and a modern assessment of its diversity is lacking. Here, we reconstructed a comprehensively sampled and robustly supported phylogeny for the genus based on four chloroplast markers using Bayesian inference, maximum likelihood and maximum parsimony analyses. We then explored the evolution of the genus from the perspectives of morphology, systematics and historical biogeography. We investigated nine critical morphological characters using a morphometric approach and reconstructed their evolution on the phylogeny. We describe four new species and provide new insight into species delimitation. We currently recognize 34 species for the genus and provide a key to identify them. The results of biogeographical analysis suggest that the distribution of extant species is largely shaped by both ancient and recent dispersal events.
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Affiliation(s)
- Cheng-Wei Chen
- Biodiversity Program, Taiwan International Graduate Program, Academia Sinica, National Taiwan Normal University, Taipei, 115201, Taiwan
- Biodiversity Research Center, Academia Sinica, Taipei, 115201, Taiwan
- Department of Life Science, National Taiwan Normal University, Taipei, 106209, Taiwan
| | - Stuart Lindsay
- Native Plant Centre, Horticulture & Community Gardening Division, National Parks Board, 1 Cluny Road, Singapore, 259569, Singapore
| | - Joel Nitta
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo, 113-0032, Japan
| | - Germinal Rouhan
- Institut de Systématique, Évolution, Biodiversité, Muséum national d'Histoire naturelle, Sorbonne Université, Ecole Pratique des Hautes Etudes, CNRS, Université des Antilles, Paris, 75005, France
| | - Michael Sundue
- Department of Plant Biology, University of Vermont, Burlington, VT, 05405, USA
| | - Leon R Perrie
- Museum of New Zealand Te Papa Tongarewa, Wellington, 6011, New Zealand
| | - Yao-Moan Huang
- Taiwan Forestry Research Institute, Taipei, 100060, Taiwan
| | | | - Kuo-Fang Chung
- Biodiversity Research Center, Academia Sinica, Taipei, 115201, Taiwan
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Tang SK, Lee PH, Liou WT, Lin CH, Huang YM, Kuo LY. Fern Spores-"Ready-to-Use" Standards for Plant Genome Size Estimation Using a Flow Cytometric Approach. Plants (Basel) 2022; 12:140. [PMID: 36616269 PMCID: PMC9824788 DOI: 10.3390/plants12010140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/29/2022] [Accepted: 12/15/2022] [Indexed: 06/17/2023]
Abstract
Spores and pollen of plants were used as flow cytometric materials to efficiently infer genome sizes. Given this advantage, they hold great potential for various flow cytometric applications, particularly as plant genome size standards. To develop such novel standards, we investigated conditions of pretreatment (bead vortex), buffer, and reliable genome sizes of three fern spore collections-Cibotium taiwanense "Kuo4395", Sphaeropteris lepifera "Tang0001", and Alsophila metteniana "Lee s.n.". Additionally, up to 30 year-old spore collections were obtained from herbarium specimens and from samples stored at 4 °C; their spore nuclei were extracted, and the quality and quantity of these nucleus extractions through storage ages were examined. Nuclear extractions with a longer bead vortex duration or lower spore/bead ratio generally resulted in a higher recovered quantity but a lower quality or purity. For each spore standard, the protocol optimization was determined by their performance in bead vortex conditions, and a 1C genome size was further inferred by linear regression (C. taiwanense "Kuo4395" = 5.058 pg; S. lepifera "Tang0001" = 7.117 pg; and A. metteniana "Lee s.n." = 19.379 pg). Spore nucleus quality and quantity are significantly negatively correlated with storage ages. Nuclear extractions of 10-year-old refrigerated spores remained qualified as a genome size standard; however, none of the herbarium spore collections fit such criteria. Our study is the first to develop and apply dried and refrigerated spores for genome size standards. These standards are ready to use, easy to manipulate, and feature long-term storage in comparison with traditionally used standards of fresh leaves.
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Affiliation(s)
- Sheng-Kai Tang
- Institute of Molecular and Cellular Biology, National Tsing Hua University, Hsinchu City 300, Taiwan
| | - Pei-Hsuan Lee
- Taiwan Forestry Research Institute, 53 Nan-Hai Road, Taipei City 100, Taiwan
| | - Wei-Ting Liou
- Experimental Forest, College of Bio-Resources and Agriculture, National Taiwan University, Nantou County 557, Taiwan
- Department of Life Sciences, National Chung Hsing University, Taichung City 402, Taiwan
| | - Chen-Hsiang Lin
- Taoyuan District Agricultural Research and Extension Station, Council of Agriculture, Executive Yuan, Taoyuan City 327, Taiwan
| | - Yao-Moan Huang
- Taiwan Forestry Research Institute, 53 Nan-Hai Road, Taipei City 100, Taiwan
| | - Li-Yaung Kuo
- Institute of Molecular and Cellular Biology, National Tsing Hua University, Hsinchu City 300, Taiwan
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Dai ZW, Yu F, Si MY, Wu YJ, Chen X, Fu JQ, Huang YM, Wang H, Xiao WJ, Mi GD, Su XY. [Influencing factors of suicidal ideation among men who have sex with men]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:1296-1300. [PMID: 35981993 DOI: 10.3760/cma.j.cn112338-20220311-00181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To investigate the prevalence of suicidal ideation among MSM, and to explore the influence of perceived social support and depression on suicidal ideation and the possible pathway. Methods: MSM who are ≥18 years, HIV-negative, and ever had sex with men (oral sex/anal sex) in the last year participated in is study. Cross-sectional survey and convenient sampling method were used to recruit MSM through a male social interaction platform Blued 7.5 software from December 2020 to March 2021, with a questionnaire survey. Demographic questionnaire, Perceived Social Support Questionnaire and Center for Epidemiologic Studies Depression Scale were employed to collect data. Mplus 8.3 was used for data analysis. Results: Among 1 394 eligible MSM participants, 25.7% (358/1 394) had suicidal ideation. Perceived social support could have a direct effect on suicidal ideation (β=-0.11, P=0.009), and an indirect effect on suicidal ideation through depression (β=-0.18, P<0.001). Conclusions: Suicidal ideation was found to be lower in MSM with a higher level of perceived social support and a lower level of depression. Using social media to improve MSM's perceived social support and reduce depressive symptoms might be an effective means to prevent suicidal ideation.
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Affiliation(s)
- Z W Dai
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China
| | - F Yu
- Danlan Goodness, Beijing 100020, China
| | - M Y Si
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China
| | - Y J Wu
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China
| | - X Chen
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China
| | - J Q Fu
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China
| | - Y M Huang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China
| | - H Wang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China
| | - W J Xiao
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China
| | - G D Mi
- Danlan Goodness, Beijing 100020, China
| | - X Y Su
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China
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Huang YM, Xu M. [Sustainable development roadmap of Chinese antimalarial products]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2022; 34:120-121. [PMID: 35537832 DOI: 10.16250/j.32.1374.2022079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
As the first country that has been certified malaria-free in the WHO Western Pacific Region for more than 3 decades, China should share its successful experiences of malaria control and provide globally recognized anti-malaria products by making full uses of its advantages in provision and production capacity of artemisinin raw materials, to fill the gaps of international demands for mosquito nets, rapid diagnostic reagents and antimalarial compounds. Increasing the investment of research and development of antimalarial products, building overseas bases for artemisinin raw material production, establishing international regulatory authority and promoting the local production of antimalarial products are needed to further promote the internationalization of Chinese antimalarial products, so as to achieve the equity and accessibility of Chinese antimalarial products in highburden regions for malaria.
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Affiliation(s)
- Y M Huang
- Department of Global Health, School of Public Health, Peking University, Beijing 100191, China
| | - M Xu
- Department of Global Health, School of Public Health, Peking University, Beijing 100191, China
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Murdock AG, Chen CW, Huang YM, Glenny D. Affinities of the fern genus Ptisana (Marattiaceae) in the Solomon Islands, with descriptions of two new species. PhytoKeys 2020; 170:1-23. [PMID: 33363432 PMCID: PMC7746669 DOI: 10.3897/phytokeys.170.59471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 11/20/2020] [Indexed: 06/12/2023]
Abstract
In the process of undertaking a comprehensive review of the pteridophytes of the Solomon Islands, multiple unidentified specimens of the fern genus Ptisana Murdock (Marattiaceae) were collected. Morphological and molecular phylogenetic analyses as well as field observations were required to identify the Solomon Islands taxa. Four species and one variety are recognized from the Solomon Islands: Ptisana ambulans Murdock & C.W. Chen, sp. nov., Ptisana decipiens Murdock & C.W. Chen, sp. nov., Ptisana decipiens var. delicata Murdock & C.W. Chen, var. nov., Ptisana papuana (Alderw.) Murdock & C.W. Chen, comb. nov., and Ptisana smithii (Mett. ex Kuhn) Murdock. The complexities in the identification of Solomon Islands collections show the limits of morphology in the genus and illuminate a path forward for untangling the Ptisana taxonomy on a broader scale.
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Affiliation(s)
- Andrew G. Murdock
- Innovative Genomics Institute, University of California, Berkeley, 2151 Berkeley Way, Berkeley, California 94720, USA
- University and Jepson Herbaria, University of California, Berkeley, 1001 Valley Life Sciences Building, Berkeley, California 94720, USA
| | - Cheng-Wei Chen
- No. 37, Lane 656, Chung Cheng Rd., Keelung City, 20246, Taiwan
| | - Yao-Moan Huang
- Taiwan Forestry Research Institute, No. 53, Nanhai Rd, Zhongzheng District, Taipei City, 10066, Taiwan
| | - David Glenny
- Allan Herbarium, Manaaki Whenua, PO Box 40, Lincoln 7640, New Zealand
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Cleary DFR, Polónia ARM, Huang YM, Putchakarn S, Gomes NCM, de Voogd NJ. A comparison of prokaryote communities inhabiting sponges, bacterial mats, sediment and seawater in Southeast Asian coral reefs. FEMS Microbiol Ecol 2020; 95:5601701. [PMID: 31633774 DOI: 10.1093/femsec/fiz169] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 10/20/2019] [Indexed: 11/12/2022] Open
Abstract
In the present study, we used Illumina sequencing to explore the prokaryote communities of 17 demosponge species and how they compare with bacterial mat, sediment and seawater samples (all sampled from coral reef habitat in Taiwan and Thailand). The studied sponge species formed three clusters. Operational taxonomic unit (OTU) richness and evenness were by far highest in the sediment and bacterial mat biotopes. There were pronounced differences in OTU richness and evenness among clusters and also considerable variation among certain host species within clusters. Additionally, the relative abundance of some prokaryotic taxa also differed among clusters with Poribacteria, e.g., being recorded in all sponge species, but with very low relative abundances in species of two of the three clusters. This sponge-associated phylum was, however, recorded at relatively high mean abundance in bacterial mat samples, which also housed relatively high abundances of actinobacterial and Chloroflexi members. Our results support high microbial abundance (HMA) status of the species Aaptos lobata, Hyrtios erectus, Pseudoceratina purpurea and Xestospongia testudinaria and low microbial abundance (LMA) status of the species Acanthella cavernosa, Echinodictyum asperum, Jaspis splendens, Ptilocaulis spiculifer, Stylissa carteri and Suberites diversicolor. Other species (Agelas cavernosa, Agelas nemoechinata, Acanthostylotella cornuta, Paratetilla sp., Hymeniacidon sp. and Haliclona cymaeformis) deviated somewhat from the typical HMA/LMA dichotomy and formed a strongly supported cluster.
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Affiliation(s)
- D F R Cleary
- Department of Biology & CESAM, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - A R M Polónia
- Department of Biology & CESAM, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Y M Huang
- Tropical Island Sustainable Development Research Center, National Penghu University of Science and Technology, 300 Liu-Ho Road, Magong City, Penghu 880, Taiwan
- Department of Marine Recreation, National Penghu University of Science and Technology, 300 Liu-Ho Road, Magong City, Penghu 880, Taiwan
| | - S Putchakarn
- Institute of Marine Science, Burapha University, Chon Buri, 20131, Thailand
| | - N C M Gomes
- Department of Biology & CESAM, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - N J de Voogd
- Naturalis Biodiversity Center, Marine Biodiversity, Darwinweg 2, 2333 CR, Leiden, The Netherlands
- Institute of Environmental Sciences (CML), Environmental Biology Department, Leiden University, 2333 CC, The Netherlands
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11
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Guo Y, Huang YM, Huang J, Jin YZ, Jiang W, Liu PL, Liu FJ, Ma JX, Ma JY, Wang Y, Xie Z, Yin H, Zhao CS, Zhou SD, Zhang J, Zheng ZJ. [COVID-19 pandemic: global epidemiological trends and China's subsequent preparedness and responses]. Zhonghua Liu Xing Bing Xue Za Zhi 2020; 41:642-647. [PMID: 32164401 DOI: 10.3760/cma.j.cn112338-20200301-00222] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The outbreak of COVID-19 has spread quickly across 114 countries/territories/areas in six continents worldwide and has been announced as a pandemic by WHO. This study analyzed global COVID-19 epidemiological trends, examined impact of the pandemic on global health security, diplomacy, and social environment in China, and provided short- and long-term strategic policy recommendations for China's subsequent preparedness and responses.
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Affiliation(s)
- Y Guo
- Institute for Global Health and School of Public Health, Peking University, Beijing 100191, China
| | - Y M Huang
- Institute for Global Health and School of Public Health, Peking University, Beijing 100191, China
| | - J Huang
- Institute for Global Health and School of Public Health, Peking University, Beijing 100191, China
| | - Y Z Jin
- Institute for Global Health and School of Public Health, Peking University, Beijing 100191, China
| | - W Jiang
- Institute for Global Health and School of Public Health, Peking University, Beijing 100191, China
| | - P L Liu
- Institute for Global Health and School of Public Health, Peking University, Beijing 100191, China
| | - F J Liu
- Institute for Global Health and School of Public Health, Peking University, Beijing 100191, China
| | - J X Ma
- Institute for Global Health and School of Public Health, Peking University, Beijing 100191, China
| | - J Y Ma
- Institute for Global Health and School of Public Health, Peking University, Beijing 100191, China
| | - Y Wang
- Institute for Global Health and School of Public Health, Peking University, Beijing 100191, China
| | - Z Xie
- Institute for Global Health and School of Public Health, Peking University, Beijing 100191, China
| | - H Yin
- Institute for Global Health and School of Public Health, Peking University, Beijing 100191, China
| | - C S Zhao
- Institute for Global Health and School of Public Health, Peking University, Beijing 100191, China
| | - S D Zhou
- Institute for Global Health and School of Public Health, Peking University, Beijing 100191, China
| | - J Zhang
- Institute for Global Health and School of Public Health, Peking University, Beijing 100191, China
| | - Z J Zheng
- Institute for Global Health and School of Public Health, Peking University, Beijing 100191, China
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12
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Kuo LY, Chang YH, Huang YH, Testo W, Ebihara A, Rouhan G, Quintanilla LG, Watkins JE, Huang YM, Li FW. A global phylogeny of Stegnogramma ferns (Thelypteridaceae): generic and sectional revision, historical biogeography and evolution of leaf architecture. Cladistics 2020; 36:164-183. [PMID: 34618958 DOI: 10.1111/cla.12399] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/25/2019] [Indexed: 10/26/2022] Open
Abstract
The thelypteroid fern genus Stegnogramma s.l. contains around 18-35 species and has a global, cross-continental distribution ranging from tropical to temperate regions. Several genera and infrageneric sections have been recognized previously in Stegnogramma s.l., but their phylogenetic relationships are still unclear. In this study, we present a global phylogeny of Stegnogramma s.l. with the most comprehensive sampling to date and aim to pinpoint the phylogenetic positions of biogeographically and taxonomically important taxa. Based on the reconstructed historical biogeography and character evolution, we propose a new (infra)generic classification and discuss the diversification of Stegnogramma s.l. in a biogeographical context. New names or combinations are made for 12 (infra)species, including transferring the monotypic species of Craspedosorus to Leptogramma. Finally, we discuss a possible link between leaf architecture and ecological adaptation, and hypothesize that the increase in leaf dissection and free-vein proportion is an adaptive feature to cool climates in Stegnogramma s.l.
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Affiliation(s)
- Li-Yaung Kuo
- Boyce Thompson Institute, Ithaca, NY, 14853, USA.,Plant Biology Section, Cornell University, Ithaca, NY, 14853, USA
| | - Yi-Hang Chang
- Taiwan Forestry Research Institute, Taipei, 10066, Taiwan
| | - Yu-Hsuan Huang
- Taiwan Forestry Research Institute, Taipei, 10066, Taiwan
| | - Weston Testo
- Biology Department, University of Florida, Gainesville, FL, 32611, USA
| | - Atsushi Ebihara
- Department of Botany, National Museum of Nature and Science, Amakubo 4-1-1, Tsukuba, Ibaraki, 305-0005, Japan
| | - Germinal Rouhan
- Institut de Systématique, Evolution, Biodiversité (ISYEB), Muséum National d'Histoire Naturelle, CNRS, EPHE, Sorbonne Université, 16 rue Buffon CP39, F-75005, Paris, France
| | - Luis G Quintanilla
- School of Environmental Sciences and Technology, Rey Juan Carlos University, Móstoles, Spain
| | - James E Watkins
- Department of Biology, Colgate University, Hamilton, NY, 13346, USA
| | - Yao-Moan Huang
- Taiwan Forestry Research Institute, Taipei, 10066, Taiwan
| | - Fay-Wei Li
- Boyce Thompson Institute, Ithaca, NY, 14853, USA.,Plant Biology Section, Cornell University, Ithaca, NY, 14853, USA
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13
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Cheng CF, Huang YM, Lu CH, Hsieh SC, Li KJ. Prednisolone dose during treatment of tuberculosis might be a risk factor for mortality in patients with systemic lupus erythematosus: a hospital-based cohort study. Lupus 2019; 28:1699-1704. [DOI: 10.1177/0961203319882759] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Patients with systemic lupus erythematosus (SLE) are at high risk of tuberculosis (TB) because of their immunocompromised status and the use of immunosuppressive drugs. In endemic regions, TB complicates the diagnosis and treatment of SLE, but the risk factors of mortality in these patients have not been investigated. In this study, we reviewed medical records during 2006–2016. Patients who fulfilled the 1997 American College of Rheumatology SLE criteria and presented with definite TB were enrolled. The primary outcome was mortality during TB treatment. There were 5388 SLE patients screened, and 30 patients were enrolled. Seven patients died during follow-up. Compared with the survival group, patients in the mortality group had significantly more central nervous system involvement of TB, higher Systemic Lupus Erythematosus Disease Activity Index-2000 scores and more cyclophosphamide use before TB, and higher prednisolone dose before and during TB treatment. Cox regression showed that prednisolone dose during TB treatment was an independent risk factor for mortality (per 10 mg/day increase, hazard ratio (HR) 1.61, p = .019). For SLE patients, prednisolone dose during TB treatment is an independent risk factor for mortality. Keeping prednisolone dose at less than 25 mg per day during TB treatment might be a reasonable strategy in these patients.
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Affiliation(s)
- C F Cheng
- Department of Internal Medicine, National Taiwan University Hospital Yun-Lin Branch, Yun-Lin County, Taiwan
| | - Y M Huang
- Department of Internal Medicine, National Taiwan University Hospital Yun-Lin Branch, Yun-Lin County, Taiwan
| | - C H Lu
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - S C Hsieh
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - K J Li
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
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14
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Chao YS, Huang YF, Dong SY, Huang YM, Liu HY. Bolbitis lianhuachihensis (Dryopteridaceae), a new species from Taiwan. PhytoKeys 2019; 131:69-81. [PMID: 31565025 PMCID: PMC6742672 DOI: 10.3897/phytokeys.131.36548] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 07/31/2019] [Indexed: 06/10/2023]
Abstract
A new species of Bolbitis, B. lianhuachihensis sp. nov., was found in central Taiwan. It most resembles B. virens var. compacta and B. hainanensis. A phylogenetic tree of Taiwanese and other Asian species of Bolbitis species supports the recognition of the new species. Morphologically, the combination of anastomosing venation and fewer sterile pinnae are critical characters to discriminate B. lianhuachihensis from other Taiwanese Bolbitis species. Bolbitis lianhuachihensis can be further distinguished from B. virens var. compacta and B. hainanensis by having lanceolate sterile pinnae and absent or fewer free veinlets in small areoles of sterile pinnae. The morphological descriptions, illustration, ecology and distribution of the new species are presented. A key to all Taiwanese Bolbitis is also provided.
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Affiliation(s)
- Yi-Shan Chao
- Department of Biomedical Science & Environmental Biology, Kaohsiung Medical University, 100, Shih-Chuan 1st Rd., Kaohsiung, 80708, TaiwanKaohsiung Medical UniversityKaohsiungTaiwan
| | - Yu-Fang Huang
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung 80424, TaiwanNational Sun Yat-sen UniversityKaohsiungTaiwan
| | - Shi-Yong Dong
- South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
| | - Yao-Moan Huang
- Taiwan Forestry Research Institute, 53 Nan-Hai Rd., Taipei, 10066, TaiwanTaiwan Forestry Research InstituteTaipeiTaiwan
| | - Ho-Yih Liu
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung 80424, TaiwanNational Sun Yat-sen UniversityKaohsiungTaiwan
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15
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Jiang MJ, Zhang HJ, Li WR, Wu WQ, Huang YM, Xu DM, Qi YY, Qin KY, Zhang L, Zhang JL. Analysis of EEG Lemple-Ziv complexity and correlative aspects before and after treatment of anti-syphilis therapy for neurosyphilis. Neurol Res 2019; 41:199-203. [PMID: 30912484 DOI: 10.1080/01616412.2018.1520438] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Objective To investigate the diagnostic value of electroencephalogram (EEG) complexity in patients with neurosyphilis by comparing the changes of electroencephalogram Lempel-Ziv complexity (EEG-LZC) before and after anti-syphilis treatment. Methods The EEG complexity of neurosyphilis patients diagnosed in our hospital from July in 2015 to June in 2017 was analyzed and compared with other diagnostic results such as serology examination and cerebrospinal fluid examination. Results A total of 27 patients were diagnosed, including 19 males and 8 females, of which 6 were mesenchymal(cerebrospinal membrane and meningeal vascular), 16 were parenchymal(paralytic dementia, spinal cord tuberculosis and optic neuropathy), and 5 were asymptomatic. After intensive anti-syphilis therapy, the LZC increased significantly in all patients while the trend and degree of change were consistent with other diagnostic results. Conclusion The LZC can be used as one of the diagnostic indexes meanwhile the trend and degree of its change can be used as the reference index of curative effect to neurosyphilis.
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Affiliation(s)
- M J Jiang
- a Department of Neurology , Beijing Ditan Hospital, Capital Medical University , Beijing , China
| | - H J Zhang
- b Department of Urology , Beijing Ditan Hospital, Capital Medical University , Beijing , China
| | - W R Li
- a Department of Neurology , Beijing Ditan Hospital, Capital Medical University , Beijing , China
| | - W Q Wu
- a Department of Neurology , Beijing Ditan Hospital, Capital Medical University , Beijing , China
| | - Y M Huang
- a Department of Neurology , Beijing Ditan Hospital, Capital Medical University , Beijing , China
| | - D M Xu
- a Department of Neurology , Beijing Ditan Hospital, Capital Medical University , Beijing , China
| | - Y Y Qi
- a Department of Neurology , Beijing Ditan Hospital, Capital Medical University , Beijing , China
| | - K Y Qin
- a Department of Neurology , Beijing Ditan Hospital, Capital Medical University , Beijing , China
| | - L Zhang
- a Department of Neurology , Beijing Ditan Hospital, Capital Medical University , Beijing , China
| | - J L Zhang
- a Department of Neurology , Beijing Ditan Hospital, Capital Medical University , Beijing , China
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16
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Abstract
Pteris (Pteridaceae) spores are usually trilete and can be distinguished by the perine ornamentation. The systematic value of spore morphology in Pteris is unclear, especially based on the renewed infrageneric classification of Pteris. In the present study, we used scanning electron microscopy (SEM) to understand spore characters in 57 Pteris species, one Onychium species, and two Astrolepis species; 40 species are reported here for the first time. The observed spore characters combined with published spore data, totaling 100 species from 16 sections of Pteris, were mapped onto a reconstructed phylogenetic tree. Seven characters (five proposed in previous studies), including an equatorial flange, laesural ridges, proximal ridges, distal ridges, tubercula on distal faces, coarse reticula on distal faces, and a row of extervermiculi between the distal face and equatorial flange, were analyzed to investigate spore morphology evolution in Pteris. However, the results showed no synapomorphies with other genera in Pteridaceae. Most of the characters were found to have arisen independently several times in different lineages or were even frequently reversed. Equatorial flanges and tubercula on distal faces are plesiomorphies and present in most Pteris species. Overall, the application of spore morphology in section circumscription is limited. Thus, we suggest combining spore morphology with leaf characters for Pteris infrageneric classification.
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Affiliation(s)
- Yi-Shan Chao
- Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yao-Moan Huang
- Division of Silviculture, Taiwan Forestry Research Institute, Taipei, Taiwan
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17
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Chen H, Song LM, Liu TR, Zhong JQ, Zhu LF, Yao L, Zhu XX, Zeng M, Liu SF, Huang YM. [Clinical applications of intelligent pressure control flexible ureteroscope for the treatment of renal calculi ≤2 cm]. Zhonghua Wai Ke Za Zhi 2018; 56:772-775. [PMID: 30369160 DOI: 10.3760/cma.j.issn.0529-5815.2018.10.014] [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 evaluate the effectiveness and safety of intelligent pressure control flexible ureteroscope for management of renal stones ≤2 cm. Methods: The clinical data of 267 cases of renal calculi treated with flexible ureteroscope lithotripsy at Department of Urology, Ganzhou People's Hospital from June 2015 to December 2017 were analyzed retrospectively. There were 129 male and 138 female patients, with a mean age of 51.2 years (ranging from 19 to 76 years). Among them, 145 patients underwent intelligent pressure control flexible ureteroscope (intelligent control group) and 122 patients underwent flexible ureteroscope ordinary (ordinary group). The t test, χ2 test or Fisher exact test were used for statistical analysis. The success rate of stone seeking, the stone free rates, the incidence of complications, the average operation time, the average hospital stay after operation were compared between the two groups. Results: The average mean operative time of the patients with intelligent control group was (26.17 ± 8.64) minutes, significantly shorter than (47.23±18.35) minutes of the ordinary group (t=1.968, P=0.000). The stone free rate of the patients with intelligent control group was 97.2%, it was higher than 86.0% of ordinary group (χ2=0.069, P=0.004). The complication rate of the patients with intelligent control group was 2.7%, which was significantly shorter than 18.0% of the ordinary group (χ2=17.586, P=0.000). However, there was no significant difference between the two groups in the success rate of stone seeking and postoperative hospital stay (P>0.05). Conclusion: Intelligent controlled pressure ureteral flexible ureteroscope has the advantages of short operation time, high stone free rate and less complications in the treatment of renal calculi ≤2 cm compared with flexible ureteroscope ordinary.
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Affiliation(s)
- H Chen
- Department of Urology, Ganzhou People's Hospital, Ganzhou Affiliated Hospital of Nanchang University, Ganzhou 341000, Jiangxi Province, China
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18
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Li FW, Brouwer P, Carretero-Paulet L, Cheng S, de Vries J, Delaux PM, Eily A, Koppers N, Kuo LY, Li Z, Simenc M, Small I, Wafula E, Angarita S, Barker MS, Bräutigam A, dePamphilis C, Gould S, Hosmani PS, Huang YM, Huettel B, Kato Y, Liu X, Maere S, McDowell R, Mueller LA, Nierop KGJ, Rensing SA, Robison T, Rothfels CJ, Sigel EM, Song Y, Timilsena PR, Van de Peer Y, Wang H, Wilhelmsson PKI, Wolf PG, Xu X, Der JP, Schluepmann H, Wong GKS, Pryer KM. Fern genomes elucidate land plant evolution and cyanobacterial symbioses. Nat Plants 2018; 4:460-472. [PMID: 29967517 PMCID: PMC6786969 DOI: 10.1038/s41477-018-0188-8] [Citation(s) in RCA: 246] [Impact Index Per Article: 41.0] [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: 02/09/2018] [Accepted: 05/24/2018] [Indexed: 05/18/2023]
Abstract
Ferns are the closest sister group to all seed plants, yet little is known about their genomes other than that they are generally colossal. Here, we report on the genomes of Azolla filiculoides and Salvinia cucullata (Salviniales) and present evidence for episodic whole-genome duplication in ferns-one at the base of 'core leptosporangiates' and one specific to Azolla. One fern-specific gene that we identified, recently shown to confer high insect resistance, seems to have been derived from bacteria through horizontal gene transfer. Azolla coexists in a unique symbiosis with N2-fixing cyanobacteria, and we demonstrate a clear pattern of cospeciation between the two partners. Furthermore, the Azolla genome lacks genes that are common to arbuscular mycorrhizal and root nodule symbioses, and we identify several putative transporter genes specific to Azolla-cyanobacterial symbiosis. These genomic resources will help in exploring the biotechnological potential of Azolla and address fundamental questions in the evolution of plant life.
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Affiliation(s)
- Fay-Wei Li
- Boyce Thompson Institute, Ithaca, NY, USA.
- Plant Biology Section, Cornell University, Ithaca, NY, USA.
| | - Paul Brouwer
- Molecular Plant Physiology Department, Utrecht University, Utrecht, the Netherlands
| | - Lorenzo Carretero-Paulet
- Bioinformatics Institute Ghent and Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
| | - Shifeng Cheng
- BGI-Shenzhen, Beishan Industrial Zone, Shenzhen, China
| | - Jan de Vries
- Department of Biochemistry and Molecular Biology, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Pierre-Marc Delaux
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, Castanet Tolosan, France
| | - Ariana Eily
- Department of Biology, Duke University, Durham, NC, USA
| | - Nils Koppers
- Department of Plant Biochemistry, Cluster of Excellence on Plant Sciences, Heinrich Heine University Düsseldorf, Dusseldorf, Germany
| | | | - Zheng Li
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ, USA
| | - Mathew Simenc
- Department of Biological Science, California State University, Fullerton, CA, USA
| | - Ian Small
- ARC Centre of Excellence in Plant Energy Biology, School of Molecular Sciences, The University of Western Australia, Crawley, Western Australia, Australia
| | - Eric Wafula
- Department of Biology, Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, USA
| | - Stephany Angarita
- Department of Biological Science, California State University, Fullerton, CA, USA
| | - Michael S Barker
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ, USA
| | | | - Claude dePamphilis
- Department of Biology, Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, USA
| | - Sven Gould
- Institute for Molecular Evolution, Heinrich Heine University Düsseldorf, Dusseldorf, Germany
| | | | | | - Bruno Huettel
- Max Planck Genome Centre Cologne, Max Planck Institute for Plant Breeding, Cologne, Germany
| | - Yoichiro Kato
- Institute for Sustainable Agro-ecosystem Services, University of Tokyo, Tokyo, Japan
| | - Xin Liu
- BGI-Shenzhen, Beishan Industrial Zone, Shenzhen, China
| | - Steven Maere
- Bioinformatics Institute Ghent and Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
| | - Rose McDowell
- ARC Centre of Excellence in Plant Energy Biology, School of Molecular Sciences, The University of Western Australia, Crawley, Western Australia, Australia
| | | | - Klaas G J Nierop
- Geolab, Faculty of Geosciences, Utrecht University, Utrecht, the Netherlands
| | | | - Tanner Robison
- Department of Biology, Utah State University, Logan, UT, USA
| | - Carl J Rothfels
- University Herbarium and Department of Integrative Biology, University of California, Berkeley, CA, USA
| | - Erin M Sigel
- Department of Biology, University of Louisiana, Lafayette, LA, USA
| | - Yue Song
- BGI-Shenzhen, Beishan Industrial Zone, Shenzhen, China
| | - Prakash R Timilsena
- Department of Biology, Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, USA
| | - Yves Van de Peer
- Bioinformatics Institute Ghent and Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
- Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Pretoria, South Africa
| | - Hongli Wang
- BGI-Shenzhen, Beishan Industrial Zone, Shenzhen, China
| | | | - Paul G Wolf
- Department of Biology, Utah State University, Logan, UT, USA
| | - Xun Xu
- BGI-Shenzhen, Beishan Industrial Zone, Shenzhen, China
| | - Joshua P Der
- Department of Biological Science, California State University, Fullerton, CA, USA
| | | | - Gane K-S Wong
- BGI-Shenzhen, Beishan Industrial Zone, Shenzhen, China
- Department of Biological Sciences, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
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19
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Chen L, Wan BL, Zang YZ, Li J, Huang YM. [Clinical analysis of nasal granulomatous capillary hemangioma]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 32:875-877. [PMID: 29921063 DOI: 10.13201/j.issn.1001-1781.2018.11.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Indexed: 11/12/2022]
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20
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Jiao HY, Sun YN, Jing XX, Liu J, Jiang L, Li CX, Ye J, Liu F, Huang YM, Zhao WT. [Assessment of Height Prediction Model Based on SNPs Loci]. Fa Yi Xue Za Zhi 2018; 34:132-137. [PMID: 29923376 DOI: 10.3969/j.issn.1004-5619.2018.02.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Indexed: 11/18/2022]
Abstract
OBJECTIVES To establish a height prediction model of Chinese Han male based on the reported 547 height-associated single nucleotide polymorphisms (SNPs) loci in Europeans, and assess its accuracy for height estimation. METHODS The DNA typing was analyzed in 59 Han male samples of Shandong province by Affymetrix SNP Array 6.0 chip and HiSeq 4000 sequencing platform. Prediction model was established using 547 height-associated SNPs loci as predictors and weight allele sums (WAS) as computing method. The accuracy of height prediction model was analysed using receiver operating characteristic (ROC) curve and area under curve (AUC). RESULTS There was no height-associated SNPs locus was found by genome-wide association studies. In present study, height prediction model was established by WAS and obtained an AUC of 0.67 (95% CI: 0.53-0.90). CONCLUSIONS It has reference value for predicting the height of Han male in Shandong province by WAS model based on 547 SNPs loci, while it is still necessary to further promote the accuracy of the prediction model by screening more height-associated SNPs loci with population heterogeneity.
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Affiliation(s)
- H Y Jiao
- Department of Forensic Medicine, Xinxiang Medical University, Xinxiang 453003, China.,Key Laboratory of Forensic Genetics, National Engineering Laboratory for Forensic Science, Beijing Engineering Research Center of Crime Scene Evidence Examination, Institute of Forensic Science, Ministry of Public Security, PRC, Beijing 100038, China
| | - Y N Sun
- Key Laboratory of Forensic Genetics, National Engineering Laboratory for Forensic Science, Beijing Engineering Research Center of Crime Scene Evidence Examination, Institute of Forensic Science, Ministry of Public Security, PRC, Beijing 100038, China.,Institute of Forensic Medicine and Laboratory Medicine, Jining Medical University, Jining 272067, China
| | - X X Jing
- Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100029, China
| | - J Liu
- Key Laboratory of Forensic Genetics, National Engineering Laboratory for Forensic Science, Beijing Engineering Research Center of Crime Scene Evidence Examination, Institute of Forensic Science, Ministry of Public Security, PRC, Beijing 100038, China
| | - L Jiang
- Key Laboratory of Forensic Genetics, National Engineering Laboratory for Forensic Science, Beijing Engineering Research Center of Crime Scene Evidence Examination, Institute of Forensic Science, Ministry of Public Security, PRC, Beijing 100038, China
| | - C X Li
- Key Laboratory of Forensic Genetics, National Engineering Laboratory for Forensic Science, Beijing Engineering Research Center of Crime Scene Evidence Examination, Institute of Forensic Science, Ministry of Public Security, PRC, Beijing 100038, China
| | - J Ye
- Key Laboratory of Forensic Genetics, National Engineering Laboratory for Forensic Science, Beijing Engineering Research Center of Crime Scene Evidence Examination, Institute of Forensic Science, Ministry of Public Security, PRC, Beijing 100038, China
| | - F Liu
- Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100029, China
| | - Y M Huang
- Department of Forensic Medicine, Xinxiang Medical University, Xinxiang 453003, China
| | - W T Zhao
- Key Laboratory of Forensic Genetics, National Engineering Laboratory for Forensic Science, Beijing Engineering Research Center of Crime Scene Evidence Examination, Institute of Forensic Science, Ministry of Public Security, PRC, Beijing 100038, China
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21
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Kuo LY, Tang TY, Li FW, Su HJ, Chiou WL, Huang YM, Wang CN. Organelle Genome Inheritance in Deparia Ferns (Athyriaceae, Aspleniineae, Polypodiales). Front Plant Sci 2018; 9:486. [PMID: 29755486 PMCID: PMC5932399 DOI: 10.3389/fpls.2018.00486] [Citation(s) in RCA: 15] [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: 01/24/2018] [Accepted: 03/29/2018] [Indexed: 05/19/2023]
Abstract
Organelle genomes of land plants are predominately inherited maternally but in some cases can also be transmitted paternally or biparentally. Compared to seed plants (>83% genera of angiosperms and >12% genera of gymnosperms), plastid genome (plastome) inheritance has only been investigated in fewer than 2% of fern genera, and mitochondrial genome (mitogenome) from only one fern genus. We developed a new and efficient method to examine plastome and mitogenome inheritance in a fern species-Deparia lancea (Athyriaceae, Aspleniineae, Polypodiales), and found that plastid and mitochondrial DNAs were transmitted from only the maternal parentage to a next generation. To further examine whether both organelle genomes have the same manner of inheritance in other Deparia ferns, we sequenced both plastid and mitochondrial DNA regions of inter-species hybrids, and performed phylogenetic analyses to identify the origins of organellar DNA. Evidence from our experiments and phylogenetic analyses support that both organelle genomes in Deparia are uniparentally and maternally inherited. Most importantly, our study provides the first report of mitogenome inheritance in eupolypod ferns, and the second one among all ferns.
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Affiliation(s)
- Li-Yaung Kuo
- Institute of Ecology and Evolutionary Biology, National Taiwan University, Taipei, Taiwan
- *Correspondence: Li-Yaung Kuo, Yao-Moan Huang, Chun-Neng Wang,
| | - Te-Yen Tang
- Taiwan Forestry Research Institute, Taipei, Taiwan
| | - Fay-Wei Li
- Boyce Thompson Institute, Ithaca, NY, United States
- Plant Biology Section, Cornell University, Ithaca, NY, United States
| | - Huei-Jiun Su
- Department of Earth and Life Sciences, University of Taipei, Taipei, Taiwan
| | - Wen-Liang Chiou
- Taiwan Forestry Research Institute, Taipei, Taiwan
- Dr. Cecilia Koo Botanic Conservation Center, Pingtung, Taiwan
| | - Yao-Moan Huang
- Taiwan Forestry Research Institute, Taipei, Taiwan
- *Correspondence: Li-Yaung Kuo, Yao-Moan Huang, Chun-Neng Wang,
| | - Chun-Neng Wang
- Institute of Ecology and Evolutionary Biology, National Taiwan University, Taipei, Taiwan
- Department of Life Science, National Taiwan University, Taipei, Taiwan
- *Correspondence: Li-Yaung Kuo, Yao-Moan Huang, Chun-Neng Wang,
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22
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Coelho FJRC, Cleary DFR, Gomes NCM, Pólonia ARM, Huang YM, Liu LL, de Voogd NJ. Sponge Prokaryote Communities in Taiwanese Coral Reef and Shallow Hydrothermal Vent Ecosystems. Microb Ecol 2018; 75:239-254. [PMID: 28699015 DOI: 10.1007/s00248-017-1023-x] [Citation(s) in RCA: 5] [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: 04/12/2017] [Accepted: 06/15/2017] [Indexed: 06/07/2023]
Abstract
Previously, it was believed that the prokaryote communities of typical 'low-microbial abundance' (LMA) or 'non-symbiont harboring' sponges were merely subsets of the prokaryote plankton community. Recent research has, however, shown that these sponges are dominated by particular clades of Proteobacteria or Cyanobacteria. Here, we expand on this research and assess the composition and putative functional profiles of prokaryotic communities from LMA sponges collected in two ecosystems (coral reef and hydrothermal vent) from vicinal islands of Taiwan with distinct physicochemical conditions. Six sponge species identified as Acanthella cavernosa (Bubarida), Echinodictyum asperum, Ptilocaulis spiculifer (Axinellida), Jaspis splendens (Tetractinellida), Stylissa carteri (Scopalinida) and Suberites sp. (Suberitida) were sampled in coral reefs in the Penghu archipelago. One sponge species provisionally identified as Hymeniacidon novo spec. (Suberitida) was sampled in hydrothermal vent habitat. Each sponge was dominated by a limited set of operational taxonomic units which were similar to sequences from organisms previously obtained from other LMA sponges. There was a distinct bacterial community between sponges collected in coral reef and in hydrothermal vents. The putative functional profile revealed that the prokaryote community from sponges collected in hydrothermal vents was significantly enriched for pathways related to DNA replication and repair.
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Affiliation(s)
- F J R C Coelho
- Department of Biology & CESAM, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - D F R Cleary
- Department of Biology & CESAM, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - N C M Gomes
- Department of Biology & CESAM, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - A R M Pólonia
- Department of Biology & CESAM, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
- Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504, Coimbra, Portugal
| | - Y M Huang
- Department of Marine Recreation, National Penghu University of Science and Technology, Penghu, Taiwan
- Naturalis Biodiversity Center, Leiden, the Netherlands
| | - L-L Liu
- Department of Oceanography, National Sun Yet-Sen University, Kaohsiung, Taiwan
| | - N J de Voogd
- Naturalis Biodiversity Center, Leiden, the Netherlands.
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23
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Chen CW, Rothfels CJ, Mustapeng AMA, Gubilil M, Karger DN, Kessler M, Huang YM. End of an enigma: Aenigmopteris belongs in Tectaria (Tectariaceae: Polypodiopsida). J Plant Res 2018; 131:67-76. [PMID: 28741041 DOI: 10.1007/s10265-017-0966-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Accepted: 06/26/2017] [Indexed: 06/07/2023]
Abstract
The phylogenetic affinities of the fern genus Aenigmopteris have been the subject of considerable disagreement, but until now, no molecular data were available from the genus. Based on the analysis of three chloroplast DNA regions (rbcL, rps16-matK, and trnL-F) we demonstrate that Aenigmopteris dubia (the type species of the genus) and A. elegans are closely related and deeply imbedded in Tectaria. The other three species of genus are morphologically very similar; we therefore transfer all five known species into Tectaria. Detailed morphological comparison further shows that previously proposed diagnostic characters of Aenigmopteris fall within the range of variation of a broadly circumscribed Tectaria.
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Affiliation(s)
- Cheng-Wei Chen
- Division of Silviculture, Taiwan Forestry Research Institute, 53 Nan-Hai Rd., Taipei, 100, Taiwan
| | - Carl J Rothfels
- University Herbarium and Department of Integrative Biology, University of California, Berkeley, USA.
| | - Andi Maryani A Mustapeng
- Forest Research Centre, Sabah Forestry Department, PO Box 1407, 90715, Sandakan, Sabah, Malaysia
| | - Markus Gubilil
- Forest Research Centre, Sabah Forestry Department, PO Box 1407, 90715, Sandakan, Sabah, Malaysia
| | - Dirk Nikolaus Karger
- Institute of Systematic Botany, University of Zürich, Zurich, Switzerland
- Swiss Federal Research Institute WSL, Zürcherstrasse 111, 8903, Birmensdorf, Switzerland
| | - Michael Kessler
- Institute of Systematic Botany, University of Zürich, Zurich, Switzerland
| | - Yao-Moan Huang
- Division of Silviculture, Taiwan Forestry Research Institute, 53 Nan-Hai Rd., Taipei, 100, Taiwan.
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24
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Huang YM, Wan BL, Zang YZ, Li J. [3 case of pharyngeal cold abscess and literature review]. Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 31:1606-1607. [PMID: 29797960 DOI: 10.13201/j.issn.1001-1781.2017.20.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [Subscribe] [Scholar Register] [Received: 03/25/2017] [Indexed: 06/08/2023]
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25
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Chao YS, Ebihara A, Chiou WL, Huang YM. Pteris latipinna sp. nov. (Pteridaceae), a new species segregated from Pteris fauriei. PhytoKeys 2017; 85:95-108. [PMID: 29033663 PMCID: PMC5624215 DOI: 10.3897/phytokeys.85.14884] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 08/16/2017] [Indexed: 05/27/2023]
Abstract
Pteris fauriei is widely distributed in Eastern Asia and has high morphological variation. Some morphologically similar plants related to this species are difficult to distinguish. We showed that the new Pteris species from Taiwan, previously identified as P. fauriei, can be morphologically distinguished by its wide pinnae, larger terminal pinnae than the lateral pinnae in sterile fronds, and triangular basal segments of the lateral pinnae. It was confirmed that this species is phylogenetically separated from the other East Asian Pteris species, except for a morphologically distinct species P. arisanensis, by means of chloroplast genes, rbcL and matK. The new species is named as Pteris latipinnasp. nov., referring to its wide pinnae. Here, we provide a key to facilitate the identification of the morphologically similar Pteris species in Asia. The morphological descriptions, images, ecology, and distribution are also presented.
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Affiliation(s)
- Yi-Shan Chao
- Department of Biomedical Science & Environmental Biology, Kaohsiung Medical University, 100, Shih-Chuan 1st Rd., Kaohsiung, 80708, Taiwan
| | - Atsushi Ebihara
- Department of Botany, National Museum of Nature and Science, 4-1-1, Amakubo, Tsukuba-shi, Ibaraki 305-0005, Japan
| | - Wen-Liang Chiou
- Taiwan Forestry Research Institute, 53 Nan-Hai Rd., Taipei, 10066, Taiwan
- Dr. Cecilia Koo Botanic Conservation Center, 31, Tongsing Rd., Gaoshu Township, Pingtung County, 90646, Taiwan
| | - Yao-Moan Huang
- Taiwan Forestry Research Institute, 53 Nan-Hai Rd., Taipei, 10066, Taiwan
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26
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Zhou XM, Zhang L, Chen CW, Li CX, Huang YM, Chen DK, Lu NT, Cicuzza D, Knapp R, Luong TT, Nitta JH, Gao XF, Zhang LB. A plastid phylogeny and character evolution of the Old World fern genus Pyrrosia (Polypodiaceae) with the description of a new genus: Hovenkampia (Polypodiaceae). Mol Phylogenet Evol 2017; 114:271-294. [PMID: 28676427 DOI: 10.1016/j.ympev.2017.06.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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: 12/02/2016] [Revised: 04/24/2017] [Accepted: 06/29/2017] [Indexed: 11/26/2022]
Abstract
The Old World fern genus Pyrrosia (Polypodiaceae) offers a rare system in ferns to study morphological evolution because almost all species of this genus are well studied for their morphology, anatomy, and spore features, and various hypotheses have been proposed in terms of the phylogeny and evolution in this genus. However, the molecular phylogeny of the genus lags behind. The monophyly of the genus has been uncertain and a modern phylogenetic study of the genus based on molecular data has been lacking. In the present study, DNA sequences of five plastid markers of 220 accessions of Polypodiaceae representing two species of Drymoglossum, 14 species of Platycerium, 50 species of Pyrrosia, and the only species of Saxiglossum (subfamily Platycerioideae), and 12 species of other Polypodiaceae representing the remaining four subfamilies are used to infer a phylogeny of the genus. Major results and conclusions of this study include: (1) Pyrrosia as currently circumscribed is paraphyletic in relation to Platycerium and can be divided into two genera: Pyrrosia s.s. and Hovenkampia (gen. nov.), with Hovenkampia and Platycerium forming a strongly supported clade sister to Pyrrosia s.s.; (2) Subfamily Platycerioideae should contain three genera only, Hovenkampia, Platycerium, and Pyrrosia s.s.; (3) Based on the molecular phylogeny, macromorphology, anatomical features, and spore morphology, four major clades in the genus are identified and three of the four are further resolved into four, four, and six subclades, respectively; (4) Three species, P. angustissima, P. foveolata, and P. mannii, not assigned to any groups by Hovenkamp (1986) because of their unusual morphology, each form monospecific clades; (5) Drymoglossum is not monophyletic and those species previously assigned to this genus are resolved in two different subclades; (6) Saxiglossum is resolved as the first lineage in the Niphopsis clade; and (7) The evolution of ten major morphological characters in the subfamily is inferred based on the phylogeny and various morphological synapomorphies for various clades and subclades are identified.
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Affiliation(s)
- Xin-Mao Zhou
- CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization, Chengdu Institute of Biology, Chinese Academy of Sciences, P.O. Box 416, Chengdu, Sichuan 610041, China; Missouri Botanical Garden, P.O. Box 299, St. Louis, MO 63166-0299, USA
| | - Liang Zhang
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
| | - Cheng-Wei Chen
- Division of Silviculture, Taiwan Forestry Research Institute, Taipei 10066, Taiwan
| | - Chun-Xiang Li
- State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China
| | - Yao-Moan Huang
- Division of Silviculture, Taiwan Forestry Research Institute, Taipei 10066, Taiwan
| | - De-Kui Chen
- College of Life Sciences, Chongqing Normal University, Shapingba, Chongqing 400047, China
| | - Ngan Thi Lu
- CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization, Chengdu Institute of Biology, Chinese Academy of Sciences, P.O. Box 416, Chengdu, Sichuan 610041, China; University of Chinese Academy of Sciences, Beijing 100049, China; Department of Biology, Vietnam National Museum of Nature, Vietnam Academy of Science and Technology, 18th Hoang Quoc Viet Road, Ha Noi, Viet Nam
| | - Daniele Cicuzza
- Faculty of Science, Universiti Brunei Darussalam, Bandar Seri Begawan, Brunei
| | - Ralf Knapp
- Correspondent of the Muséum national d'Histoire naturelle (MNHN, Paris, France), Steigestrasse 78, 69412 Eberbach, Germany
| | - Thien Tam Luong
- Department of Ecology, Evolutionary Biology, Vietnam National University Ho Chi Minh City (VNUHCM), University of Science, 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Viet Nam; Department of Biology, University of Turku, Turku, Finland
| | - Joel H Nitta
- Department of Botany, National Museum of Nature and Science, 4-1-1 Amakubo, Tsukuba, Ibaraki 305-0005, Japan
| | - Xin-Fen Gao
- CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization, Chengdu Institute of Biology, Chinese Academy of Sciences, P.O. Box 416, Chengdu, Sichuan 610041, China.
| | - Li-Bing Zhang
- Missouri Botanical Garden, P.O. Box 299, St. Louis, MO 63166-0299, USA.
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27
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Kuo LY, Huang YM. Determining Genome Size from Spores of Seedless Vascular Plants. Bio Protoc 2017; 7:e2322. [PMID: 34541084 DOI: 10.21769/bioprotoc.2322] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 04/25/2017] [Accepted: 05/02/2017] [Indexed: 11/02/2022] Open
Abstract
Seedless vascular plants, including ferns and lycophytes, produce spores to initiate the gametophyte stage and to complete sexual reproduction. Approximately 10% of them are apomictic through the production of genomic unreduced spores. Being able to measure the spore nuclear DNA content is therefore important to infer their reproduction mode. Here we present a protocol of spore flow cytometry that allows an efficient determination of the reproductive modes of seedless vascular plants.
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Affiliation(s)
- Li-Yaung Kuo
- Instituite of Plant Biology, National Taiwan University, Taipei, Taiwan
| | - Yao-Moan Huang
- Division of Silviculture, Taiwan Forestry Research Institute, Taipei, Taiwan
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28
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Li JG, Ding Y, Huang YM, Chen WL, Pan LL, Li Y, Chen XL, Chen Y, Wang SY, Wu XN. FAMLF is a target of miR-181b in Burkitt lymphoma. ACTA ACUST UNITED AC 2017; 50:e5661. [PMID: 28492808 PMCID: PMC5441277 DOI: 10.1590/1414-431x20175661] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 03/02/2017] [Indexed: 12/12/2022]
Abstract
Burkitt lymphoma (BL) is a highly malignant non-Hodgkin's lymphoma that is closely
related to the abnormal expression of genes. Familial acute myelogenous leukemia
related factor (FAMLF; GenBank accession No. EF413001.1) is a novel
gene that was cloned by our research group, and miR-181b is located in the intron of
the FAMLF gene. To verify the role of miR-181b and
FAMLF in BL, RNAhybrid software was used to predict target site
of miR-181b on FAMLF and real-time quantitative PCR (RQ-PCR) was
used to detect expression of miR-181b and FAMLF in BL patients, Raji
cells and unaffected individuals. miR-181b was then transfected into Raji and CA46
cell lines and FAMLF expression was examined by RQ-PCR and western
blotting. Further, Raji cells viability and proliferation were detected by MTT and
clone formation, and Raji cell cycle and apoptosis were detected by flow cytometry.
The results showed that miR-181b can bind to bases 21–42 of the
FAMLF 5′ untranslated region (UTR), FAMLF was
highly expressed and miR-181b was lowly expressed in BL patients compared with
unaffected individuals. FAMLF expression was significantly and
inversely correlated to miR-181b expression, and miR-181b negatively regulated
FAMLF at posttranscriptional and translational levels. A
dual-luciferase reporter gene assay identified that the 5′ UTR of
FAMLF mRNA contained putative binding sites for miR-181b.
Down-regulation of FAMLF by miR-181b arrested cell cycle, inhibited
cell viability and proliferation in a BL cell line model. Our findings explain a new
mechanism of BL pathogenesis and may also have implications in the therapy of
FAMLF-overexpressing BL.
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Affiliation(s)
- J G Li
- Department of Hematology, Fujian Institute of Hematology, Fujian Medical University Union Hospital, Fuzhou, China
| | - Y Ding
- Union Clinical Medical College, Fujian Medical University, Fuzhou, China
| | - Y M Huang
- Union Clinical Medical College, Fujian Medical University, Fuzhou, China
| | - W L Chen
- Union Clinical Medical College, Fujian Medical University, Fuzhou, China
| | - L L Pan
- Department of Hematology, Fujian Institute of Hematology, Fujian Medical University Union Hospital, Fuzhou, China
| | - Y Li
- Department of Hematology, Fujian Institute of Hematology, Fujian Medical University Union Hospital, Fuzhou, China
| | - X L Chen
- Union Clinical Medical College, Fujian Medical University, Fuzhou, China
| | - Y Chen
- Union Clinical Medical College, Fujian Medical University, Fuzhou, China
| | - S Y Wang
- Department of Hematology, Fujian Institute of Hematology, Fujian Medical University Union Hospital, Fuzhou, China
| | - X N Wu
- School of Public Health, Fujian Medical University, Fuzhou, China
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29
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Chen CW, Sundue M, Kuo LY, Teng WC, Huang YM. Phylogenetic analyses place the monotypic Dryopolystichum within Lomariopsidaceae. PhytoKeys 2017; 78:83-107. [PMID: 28781553 PMCID: PMC5543276 DOI: 10.3897/phytokeys.78.12040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Accepted: 03/23/2017] [Indexed: 05/07/2023]
Abstract
The monotypic fern genus Dryopolystichum Copel. combines a unique assortment of characters that obscures its relationship to other ferns. Its thin-walled sporangium with a vertical and interrupted annulus, round sorus with peltate indusium, and petiole with several vascular bundles place it in suborder Polypodiineae, but more precise placement has eluded previous authors. Here we investigate its phylogenetic position using three plastid DNA markers, rbcL, rps4-trnS, and trnL-F, and a broad sampling of Polypodiineae. We also provide new data on Dryopolystichum including spore number counts, reproductive mode, spore SEM images, and chromosome counts. Our maximum-likelihood and Bayesian-inference phylogenetic analyses unambiguously place Dryopolystichum within Lomariopsidaceae, a position not previously suggested. Dryopolystichum was resolved as sister to a clade comprising Dracoglossum and Lomariopsis, with Cyclopeltis as sister to these, but clade support is not robust. All examined sporangia of Dryopolystichum produced 32 spores, and the chromosome number of sporophyte somatic cells is ca. 164. Flow cytometric results indicated that the genome size in the spore nuclei is approximately half the size of those from sporophyte leaf tissues, suggesting that Dryopolystichum reproduces sexually. Our findings render Lomariopsidaceae as one of the most morphologically heterogeneous fern families. A recircumscription is provided for both Lomariopsidaceae and Dryopolystichum, and selected characters are briefly discussed considering the newly generated data.
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Affiliation(s)
- Cheng-Wei Chen
- Division of Silviculture, Taiwan Forestry Research Institute, 53 Nan-Hai Rd., Taipei 100, Taiwan
| | - Michael Sundue
- The Pringle Herbarium, Department of Plant Biology, The University of Vermont, 27 Colchester Ave., Burlington, VT 05405, USA
| | - Li-Yaung Kuo
- Institute of Ecology and Evolutionary Biology, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, 10617, Taiwan
| | - Wei-Chih Teng
- Natural photographer, 664, Hu-Shan Rd., Caotun Township, Nantou 54265, Taiwan
| | - Yao-Moan Huang
- Division of Silviculture, Taiwan Forestry Research Institute, 53 Nan-Hai Rd., Taipei 100, Taiwan
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Song B, Wang LF, Fan XH, Zuo JH, Huang YM. Expression of T-lymphoma invasion and metastasis factor on the occurrence of oral squamous cell carcinoma. J BIOL REG HOMEOS AG 2017; 31:289-295. [PMID: 28685528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In recent years, many studies have found that tumor metastasis-related gene T-lymphoma invasion and metastasis-inducing factor 1 (TIAM1) had abnormal high expression in a variety of tumor cells; however, there are few studies regarding its expression in oral squamous cell carcinoma (OSCC). This study aimed to observe the expression of TIAM1 in OSCC and investigated its clinical significance. The expression of TIAM1 in tissues from 120 cases of OSCC and oral mucosa from 40 normal cases was detected by immunohistochemistry, and the relationship between the expression of TIAM1 and the clinicopathological parameters of OSCC was analyzed. The positive expression rate of TIAM1 in the OSCC tissues was significantly higher than that in the normal oral mucosa (92.5% vs 0%). With the decrease of histological differentiation of OSCC, the increase of tumor node metastasis (TNM) stage and the occurrence of lymph node metastasis, the TIAM1 staining positive rate was gradually increased, and the difference was statistically significant (P less than 0.05). However, the expression of TIAM1 in the OSCC tissues was in no correlation with the gender and age of the patients. The expression of TIAM1 is closely related to the occurrence, development and metastasis of OSCC, and it can be used as a new marker for reflecting its biological behaviors.
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Affiliation(s)
- B Song
- Department of Oral and Maxillofacial Surgery, Binzhou Medical University Hospital, Binzhou, China
| | - L F Wang
- Department of Oral and Maxillofacial Surgery, Binzhou Medical University Hospital, Binzhou, China
| | - X H Fan
- Ophthalmology Dept., Binzhou Peoples Hospital, Binzhou, China
| | - J H Zuo
- Department of Oral and Maxillofacial Surgery, Binzhou Medical University Hospital, Binzhou, China
| | - Y M Huang
- Department of Oral and Maxillofacial Surgery, Binzhou Medical University Hospital, Binzhou, China
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31
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Kuo LY, Chen CW, Shinohara W, Ebihara A, Kudoh H, Sato H, Huang YM, Chiou WL. Not only in the temperate zone: independent gametophytes of two vittarioid ferns (Pteridaceae, Polypodiales) in East Asian subtropics. J Plant Res 2017; 130:255-262. [PMID: 28012123 DOI: 10.1007/s10265-016-0897-x] [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] [Subscribe] [Scholar Register] [Received: 06/12/2016] [Accepted: 09/28/2016] [Indexed: 05/13/2023]
Abstract
Independent gametophyte ferns are unique among vascular plants because they are sporophyteless and reproduce asexually to maintain their populations in the gametophyte generation. Such ferns had been primarily discovered in temperate zone, and usually hypothesized with (sub)tropical origins and subsequent extinction of sporophyte due to climate change during glaciations. Presumably, independent fern gametophytes are unlikely to be distributed in tropics and subtropics because of relatively stable climates which are less affected by glaciations. Nonetheless, the current study presents cases of two independent gametophyte fern species in subtropic East Asia. In this study, we applied plastid DNA sequences (trnL-L-F and matK + ndhF + chlL datasets) and comprehensive sampling (~80%) of congeneric species for molecular identification and divergence time estimation of these independent fern gametophytes. The two independent gametophyte ferns were found belonging to genus Haplopteris (vittarioids, Pteridaceae) and no genetic identical sporophyte species in East Asia. For one species, divergence times between its populations imply recent oversea dispersal(s) by spores occurred during Pleistocene. By examining their ex situ and in situ fertility, prezygotic sterility was found in these two Haplopteris, in which gametangia were not or very seldom observed, and this prezygotic sterility might attribute to their lacks of functional sporophytes. Our field observation and survey on their habitats suggest microhabitat conditions might attribute to this prezygotic sterility. These findings point to consideration of whether recent climate change during the Pleistocene glaciation resulted in ecophysiological maladaptation of non-temperate independent gametophyte ferns. In addition, we provided a new definition to classify fern gametophyte independences at the population level. We expect that continued investigations into tropical and subtropical fern gametophyte floras will further illustrate the biogeographic significance of non-temperate fern gametophyte independence.
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Affiliation(s)
- Li-Yaung Kuo
- Institute of Ecology and Evolutionary Biology, National Taiwan University, Taipei, 10617, Taiwan, Republic of China
| | - Cheng-Wei Chen
- Division of Silviculture, Taiwan Forestry Research Institute, Taipei, 10066, Taiwan, Republic of China
| | - Wataru Shinohara
- Faculty of Education, Kagawa University, Saiwaicho 1-1, Takamatsu, Kagawa, 760-8522, Japan
| | - Atsushi Ebihara
- Department of Botany, National Museum of Nature and Science, Amakubo 4-1-1, Tsukuba, Ibaraki, 305-0005, Japan
| | - Hiroshi Kudoh
- Center for Ecological Research, Kyoto University, Hirano 2-509-3, Otsu, Shiga, 520-2113, Japan
| | - Hirotoshi Sato
- Center for Ecological Research, Kyoto University, Hirano 2-509-3, Otsu, Shiga, 520-2113, Japan
| | - Yao-Moan Huang
- Division of Silviculture, Taiwan Forestry Research Institute, Taipei, 10066, Taiwan, Republic of China.
| | - Wen-Liang Chiou
- Division of Botanical Garden, Taiwan Forestry Research Institute, Taipei, 10066, Taiwan, Republic of China.
- Dr. Cecilia Koo Botanic Conservation Center, Pingtung County, 906, Taiwan, Republic of China.
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Kuo LY, Huang YJ, Chang J, Chiou WL, Huang YM. Evaluating the spore genome sizes of ferns and lycophytes: a flow cytometry approach. New Phytol 2017; 213:1974-1983. [PMID: 28164337 DOI: 10.1111/nph.14291] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [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: 06/16/2016] [Accepted: 09/17/2016] [Indexed: 05/23/2023]
Abstract
Ferns and lycophytes produce spores to initiate the gametophyte stage for sexual reproduction. Approximately 10% of these seedless vascular plants are apomictic, and produce genomic unreduced spores. Genome size comparisons between spores and leaves are a reliable, and potentially easier way to determine their reproductive mode compared to traditional approaches. However, estimation of the spore genome sizes of these plants has not been attempted. We attempted to evaluate the spore genome sizes of ferns and lycophytes using flow cytometry, collected spores from selected species representing different spore physical properties and taxonomic groups, and sought to optimize bead-vortexing conditions. By evaluating the spore and sporophyte genome sizes, we examined whether reproductive modes could be ascertained from these flow cytometry results. We proposed two separate sets of optimized bead-vortexing conditions for the nuclear extraction of green and nongreen spores. We further successfully extracted spore nuclei of 19 families covering most orders, and the qualities and quantities of these extractions satisfied the C-value criteria. These evaluated genome sizes further supported the reproductive modes reported previously. In the current study, flow cytometry was used for the first time to evaluate the spore genome sizes of ferns and lycophytes. This use of spore flow cytometry provides a new, efficient approach to ascertaining the reproductive modes of these plants.
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Affiliation(s)
- Li-Yaung Kuo
- Institute of Ecology and Evolutionary Biology, National Taiwan University, Taipei, 10617, Taiwan
| | - Yi-Jia Huang
- Department of Forensic Science, Central Police University, Taoyuan City, 33304, Taiwan
- Division of Silviculture, Taiwan Forestry Research Institute, Taipei, 10066, Taiwan
| | - JenYu Chang
- Chiayi Agricultural Experiment Branch, Taiwan Agricultural Research Institute, Chiayi City, 60044, Taiwan
| | - Wen-Liang Chiou
- Division of Botanical Garden, Taiwan Forestry Research Institute, Taipei, 10066, Taiwan
- Dr. Cecilia Koo Botanic Conservation and Environmental Protection Foundation/Conservation Center, Pingtung County, 90646, Taiwan
| | - Yao-Moan Huang
- Division of Silviculture, Taiwan Forestry Research Institute, Taipei, 10066, Taiwan
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Tseng MH, Lin KH, Huang YJ, Chang YL, Huang SC, Kuo LY, Huang YM. Detection of chlorophylls in spores of seven ferns. J Plant Res 2017; 130:407-416. [PMID: 28050681 DOI: 10.1007/s10265-016-0901-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 11/21/2016] [Indexed: 06/06/2023]
Abstract
Fern spores were traditionally classified into chlorophyllous (green) and nonchlorophyllous (nongreen) types based on the color visible to the naked eye. Recently, a third type, "cryptochlorophyllous spores", is recognized, and these spores are nongreen under white light but contain chlorophylls. Epifluorescence microscopy was previously used to detect chlorophylls in cryptochlorophyllous spores. In addition to epifluorescence microscopy, current study performed some other approaches, including spore-squash epifluorescence, absorption spectra, laser-induced fluorescence emission spectra, thin layer chromatography (TLC), and ultra-high performance liquid chromatography with ultraviolet and mass spectrometric detection (UHPLC-UV-MS) in order to detect chlorophylls of spores of seven ferns (Sphaeropteris lepifera, Ceratopteris thalictroides, Leptochilus wrightii, Leptochilus pothifolius, Lepidomicrosorum buergerianum, Osmunda banksiifolia, and Platycerium grande). Destructive methods, such as TLC and UHPLC-UV-MS, successfully detected chlorophylls inside the spores when their signals of red fluorescence under epifluorescence microscope were masked by spore wall. Although UHPLC-UV-MS analysis was the most sensitive and reliable for determining the chlorophylls of spores, spore-squash epifluorescence is not only reliable but also cost- and time-effective one among our study methods. In addition, we first confirmed that Lepidomicrosorium buergerianum, Leptochilus pothifolius, Leptochilus wrightii, and Platycerium grande, produce cryptochlorophyllous spores.
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Affiliation(s)
- Mei-Hwei Tseng
- Department of Applied Physics and Chemistry, University of Taipei, Taipei, Taiwan
| | - Kuei-Huei Lin
- Department of Applied Physics and Chemistry, University of Taipei, Taipei, Taiwan
| | - Yi-Jia Huang
- Department of Applied Physics and Chemistry, University of Taipei, Taipei, Taiwan
| | - Ya-Lan Chang
- Dr. Cecilia Koo Botanic Conservation Center, Pingtung, Taiwan
| | - Sheng-Cih Huang
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, Taiwan
| | - Li-Yaung Kuo
- Division of Silviculture, Taiwan Forestry Research Institute, Taipei, Taiwan
| | - Yao-Moan Huang
- Division of Silviculture, Taiwan Forestry Research Institute, Taipei, Taiwan.
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Hsiung HY, Huang BH, Chang JT, Huang YM, Huang CW, Liao PC. Local Climate Heterogeneity Shapes Population Genetic Structure of Two Undifferentiated Insular Scutellaria Species. Front Plant Sci 2017; 8:159. [PMID: 28239386 PMCID: PMC5301026 DOI: 10.3389/fpls.2017.00159] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Accepted: 01/25/2017] [Indexed: 06/06/2023]
Abstract
Spatial climate heterogeneity may not only affect adaptive gene frequencies but could also indirectly shape the genetic structure of neutral loci by impacting demographic dynamics. In this study, the effect of local climate on population genetic variation was tested in two phylogenetically close Scutellaria species in Taiwan. Scutellaria taipeiensis, which was originally assumed to be an endemic species of Taiwan Island, is shown to be part of the widespread species S. barbata based on the overlapping ranges of genetic variation and climatic niches as well as their morphological similarity. Rejection of the scenario of "early divergence with secondary contact" and the support for multiple origins of populations of S. taipeiensis from S. barbata provide strong evolutionary evidence for a taxonomic revision of the species combination. Further tests of a climatic effect on genetic variation were conducted. Regression analyses show nonlinear correlations among any pair of geographic, climatic, and genetic distances. However, significantly, the bioclimatic variables that represent the precipitation from late summer to early autumn explain roughly 13% of the genetic variation of our sampled populations. These results indicate that spatial differences of precipitation in the typhoon season may influence the regeneration rate and colonization rate of local populations. The periodic typhoon episodes explain the significant but nonlinear influence of climatic variables on population genetic differentiation. Although, the climatic difference does not lead to species divergence, the local climate variability indeed impacts the spatial genetic distribution at the population level.
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Affiliation(s)
- Huan-Yi Hsiung
- Department of Life Science, National Taiwan Normal UniversityTaipei, Taiwan
| | - Bing-Hong Huang
- Department of Life Science, National Taiwan Normal UniversityTaipei, Taiwan
| | - Jui-Tse Chang
- Department of Entomology, National Taiwan UniversityTaipei, Taiwan
| | - Yao-Moan Huang
- Division of Silviculture, Taiwan Forestry Research InstituteTaipei, Taiwan
| | - Chih-Wei Huang
- Department of Life Science, National Taiwan Normal UniversityTaipei, Taiwan
| | - Pei-Chun Liao
- Department of Life Science, National Taiwan Normal UniversityTaipei, Taiwan
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Zhu WH, Lu CZ, Huang YM, Link H, Xiao BG. A putative mechanism on remission of multiple sclerosis during pregnancy: estrogen-induced indoleamine 2,3-dioxygenase by dendritic cells. Mult Scler 2016; 13:33-40. [PMID: 17294609 DOI: 10.1177/1352458506071171] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The basis for the reduced relapse rate of multiple sclerosis (MS) during pregnancy remains unexplained but, if defined, could create novel treatment options. Estrogen constitutes one candidate molecule, but the mechanism by which estrogen may affect MS during pregnancy is unclear. In this study, we used monocyte-derived dendritic cells (DCs) from MS patients to explore the estrogen (17-b-estradiol)-related pathway of immune modulation. Estrogen induced the expression of indoleamine 2,3-dioxygenase (IDO) on DCs, limiting T-cell proliferation and both Th1 and Th2 cytokine production. The suppression of T-cell proliferation mediated by estrogenexposed DCs was partly abolished by the IDO-inhibitor, 1-methyl-dl-tryptophan, indicating that estrogen-exposed DCs induced IDO-dependent T-cell suppression. Our data support the hypothesis that the change in the clinical course of MS observed in pregnancy may be related to the estrogen DC-IDO axis, which could represent a novel target for MS therapy.
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Affiliation(s)
- W H Zhu
- Institute of Neurology, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
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Lai CH, Huang YM, Wang CH, Huang JS, Tsai CS, Yeh KY, Lan YJ, Wu TH, Chang PH, Chang YS. Treatment-associated severe thrombocytopenia affects survival rate in esophageal cancer patients undergoing concurrent chemoradiotherapy. Indian J Cancer 2015; 52:454-60. [DOI: 10.4103/0019-509x.176708] [Citation(s) in RCA: 4] [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: 11/04/2022]
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Chang YL, Hsieh CL, Huang YM, Chiou WL, Kuo YH, Tseng MH. Modified method for determination of sulfur metabolites in plant tissues by stable isotope dilution-based liquid chromatography-electrospray ionization-tandem mass spectrometry. Anal Biochem 2013; 442:24-33. [PMID: 23911527 DOI: 10.1016/j.ab.2013.07.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2012] [Revised: 07/18/2013] [Accepted: 07/19/2013] [Indexed: 12/25/2022]
Abstract
A wide variety of sulfur metabolites play important roles in plant functions. We have developed a precise and sensitive method for the simultaneous measurement of several sulfur metabolites based on liquid chromatography coupled with tandem mass spectrometry (LC-MS/MS) and (34)S metabolic labeling of sulfur-containing metabolites in Arabidopsis thaliana seedlings. However, some sulfur metabolites were unstable during the extraction procedure. Our proposed method does not allow for the detection of the important sulfur metabolite homocysteine because of its instability during sample extraction. Stable isotope-labeled sulfur metabolites of A. thaliana shoot were extracted and utilized as internal standards for quantification of sulfur metabolites with LC-MS/MS using S-adenosylmethionine (SAM), S-adenosylhomocysteine (SAH), methionine (Met), glutathione (GSH), and glutathione disulfide (GSSG) as example metabolites. These metabolites were detected using electrospray ionization in positive mode. Standard curves were linear (r(2)>0.99) over a range of concentrations (SAM 0.01-2.0μM, SAH 0.002-0.10μM, Met 0.05-4.0μM, GSH 0.17-20.0μM, GSSG 0.07-20.0μM), with limits of detection for SAM, SAH, Met, GSH, and GSSG of 0.83, 0.67, 10, 0.56, and 1.1nM, respectively; and the within-run and between-run coefficients of variation based on quality control samples were less than 8%.
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Affiliation(s)
- Ya-Lan Chang
- Department of Applied Physics and Chemistry, University of Taipei, Taipei 10048, Taiwan
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Fu CH, Hsieh HM, Chen CY, Chang TT, Huang YM, Ju YM. Ophiodiaporthe cyatheae gen. et sp. nov., a diaporthalean pathogen causing a devastating wilt disease of Cyathea lepifera in Taiwan. Mycologia 2013; 105:861-72. [PMID: 23709481 DOI: 10.3852/12-346] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The scaly tree fern, Cyathea lepifera, in Taiwan has been devastated by an ascomycetous pathogen in recent years. This fungus resembles species of Diaporthe, but unlike anamorphs of Diaporthe that produce two types of conidia, its anamorph produces one conidium type. It is described herein as Ophiodiaporthe cyatheae gen. et sp. nov. Through pathogenicity tests, O. cyatheae was demonstrated to be the causal agent of the C. lepifera wilt disease. Of interest, sporulating structures of O. cyatheae have not been found on C. lepifera plants but in culture thus far. The mating system is homothallic. Phylogenetic analyses based on combined sequences of nSSU-rDNA, nLSU-rDNA, EF1-α-1 and RPB2 placed O. cyatheae in Diaporthaceae. Combined sequences of EF1-α-2 and TUB indicated that O. cyatheae had its origin within Diaporthe.
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Affiliation(s)
- Chuen-Hsu Fu
- Division on Forest Protection, Taiwan Forestry Research Institute, Taipei, Taiwan
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Li WL, Liu Y, Yu YC, Huang YM, Liang SD, Shi ZD. Prolactin plays a stimulatory role in ovarian follicular development and egg laying in chicken hens. Domest Anim Endocrinol 2011; 41:57-66. [PMID: 21600726 DOI: 10.1016/j.domaniend.2011.03.002] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2010] [Revised: 03/25/2011] [Accepted: 03/28/2011] [Indexed: 11/16/2022]
Abstract
The aim of this study was to show a stimulatory role in ovarian follicle development by prolactin (PRL) in chicken hens. In experiment 1, anti-PRL antibodies were generated in hen plasma by intramuscular administrations of recombinant PRL antigen. Egg laying remained at levels lower (P < 0.05) in the PRL-immunized group than in the BSA-immunized group of hens, whereas development of incubation was depressed in the former but not the latter group. Throughout the experiment, plasma PRL concentrations were lower in the PRL-immunized hens than in non-incubating control hens; LH concentrations were similar between the PRL- and BSA-immunized hens until the end of the experiment when LH was lower in the BSA-immunized hens (P < 0.05). In experiment 2, anti-PRL receptor (PRLR) antibodies were raised in hens with the use of immunizations against recombinant PRLR extracellular domain. Immunization against PRLR initially increased the egg-laying rate when measured under the short photoperiod (12 h) but blocked the laying rate increase that occurred in the BSA-immunized control hens when the photoperiod was extended from 12 to 16 h. The development of incubation behavior was not affected by immunization against PRLR nor was plasma PRL or LH concentration. In experiment 3, when the egg-laying rate was depressed in PRL immunization hens, developmental speed of large white follicles was found to be slower than in the BSA-immunized control hens (P < 0.05). These results indicate that immunization against PRL slows down ovarian follicular development and reduces hen egg-laying performance, suggesting that PRL plays a stimulatory role in ovarian follicular development in chicken hens.
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Affiliation(s)
- W L Li
- Department of Animal Science, South China Agricultural University, Guangzhou, China
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Abstract
BACKGROUND Significant changes in autonomic activity occur at sleep-wake transitions and constitute an ideal setting for investigating the modulatory role of the autonomic nervous system on gastric myoelectrical activity (GMA). METHODS Using continuous power spectral analysis of electroencephalogram, electromyogram, and electrogastromyogram (EGMG) data from freely moving rats that had undergone chemical sympathetomy and/or truncal vagotomy, sleep-wake-related fluctuations in GMA were compared among the intervention groups. KEY RESULTS The pattern and extent of fluctuations in EGMG power across the sleep-wake states was blunted most significantly in rats undergoing both chemical sympathectomy and truncal vagotomy. The effect of these interventions also varied with respect to the transition between different sleep-wake states. The most prominent influences were observed between active waking and quiet sleep and between paradoxical sleep and quiet sleep. CONCLUSIONS & INFERENCES The sleep-wake-related fluctuations in EGMG power are a result of joint contributions from both sympathetic and vagal innervation. Vagotomy mainly resulted in a reduction in EGMG power, while the role of sympathetic innervation was unveiled by vagotomy and this was reflected most obviously in the extent of the fluctuations in EGMG power.
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Affiliation(s)
- Y M Huang
- Department of Surgery, Buddhist Tzu Chi General Hospital, Hualien, Taiwan
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Sanna A, Huang YM, Arru G, Fois ML, Link H, Rosati G, Sotgiu S. Multiple sclerosis: reduced proportion of circulating plasmacytoid dendritic cells expressing BDCA-2 and BDCA-4 and reduced production of IL-6 and IL-10 in response to herpes simplex virus type 1. Mult Scler 2008; 14:1199-207. [PMID: 18653740 DOI: 10.1177/1352458508094401] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE We hypothesized that autoaggressive immune responses observed in multiple sclerosis (MS) could be associated with an imbalance in proportion of immune cell subsets and in cytokine production in response to infection, including viruses. METHODS We collected blood mononuclear cells (MNC) from 23 patients with MS and 23 sex- and age-matched healthy controls (HC) from the island of Sardinia, Italy, where the prevalence of MS is extraordinarily high. Using flow cytometry, we studied MNC for expression of blood dendritic cell antigens (BDCA)-2 and BDCA-4 surface markers reflecting the proportion of plasmacytoid dendritic cells (pDC) that produce type I interferons (IFNs) after virus challenge and promote Th2/anti-inflammtory cytokine production. In parallel, pro-inflammatory (interleukin [IL]-2, IL-12, IFN-gamma), anti-inflammatory (IL-4, IL-10), and immuno-regulatory/pleiotropic cytokines (type I IFNs including IFN-alpha and beta, IL-6) were measured before and after an in vitro exposure to herpes simplex virus type 1 (HSV-1). RESULTS The subset of lineage negative (lin(-)), BDCA-2(+) cells was lower in patients with MS compared with HC (0.08 + or - 0.02% vs 0.24 + or - 0.02%; P < 0.001). A similar pattern was observed for lin(-)BDCA-4(+) cells (0.08 + or - 0.02% vs 0.17% + or - 0.03; P < 0.01). Spontaneous productions of IL-6 (45 + or - 10 pg/mL vs 140 + or - 26 pg/mL; P < 0.01) and IL-10 (17 + or - 0.4 pg/mL vs 21 + or - 1 pg/mL; P < 0.05) by MNC were lower in patients with MS compared with HC. Spontaneous production of IL-6 (6.5 + or - 0.15 pg/mL vs 21 + or - 5 pg/mL; P < 0.01 and IL-10 (11 + or - 1 pg/mL vs 14 + or - 3 pg/mL; P < 0.05) by pDC was also lower in patients with MS compared with HC. Exposure of MNC to HSV-1 showed, in both patients with MS and HC, increased production of IFN-alpha, IL-6, and IL-10 but decreased production of IL-4. In response to HSV-1 exposure, productions of IL-6 (165 +or - 28 pg/mL vs 325 + or - 35 pg/mL; P < 0.01) and IL-10 (27 +or - 3 vs 33 + or - 3 P < 0.05) by MNC as well as by pDC (IL-6: 28 + or - 7 vs 39 + or - 12 P < 0.05; IL-10: 14 + or - 1 vs 16 + or - 3 P < 0.05) were lower in patients with MS compared with HC. CONCLUSION The results implicate a new evidence for altered immune cells and reduced immune responses in response to viral challenge in MS.
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Affiliation(s)
- A Sanna
- Department of Neuroscience, Institute of Clinical Neurology, University of Sassari, Sassari, Italy.
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Huang YM, Shi ZD, Liu Z, Liu Y, Li XW. Endocrine regulations of reproductive seasonality, follicular development and incubation in Magang geese. Anim Reprod Sci 2008; 104:344-58. [PMID: 17368765 DOI: 10.1016/j.anireprosci.2007.02.005] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2006] [Revised: 01/22/2007] [Accepted: 02/16/2007] [Indexed: 11/20/2022]
Abstract
This study investigated the regulatory mechanisms of seasonal breeding, developments of ovarian follicles and incubation in Magang geese, a short day breeding bird. Throughout the year, plasma PRL concentrations increased in non-breeding season in spring and summer (from April to early August), and remained low in the rest of the year, while LH concentrations peaked in August and September and remained low in non-breeding season (March to June). Lengthening photoperiod increased PRL and decreased LH secretions, which inhibited follicular development, terminated lay and induced moulting, while shortening photoperiod decreased PRL and increased LH secretion and reinitiated lay. Long photoperiod stimulated PRL secretion occurred with increased gene expressions of PRL in the pituitary gland and VIP in the hypothalamus, but inhibition of LH secretion was without decreases in gene expressions of LH beta subunit and GnRH. Under breeding conditions, terminating incubation decreased PRL but increased LH concentrations and resumed lay in 24 days following recruitment of about 10 large white follicles into hierarchical development. Plasma concentrations of progesterone and inhibin peaked at peak lay, whereas LH concentrations exhibited a bi-phasic pattern with troughs at peak lay and incubation when PRL concentrations were high. Ninety percent geese exhibited incubation behaviour after laying one clutch of approximately eight eggs in approximately 30 days. In conclusion the seasonal reproductive activities in Magang geese is directly inhibited by long photoperiod and directly stimulated by short photoperiod via PRL and LH secretions, whose interplays also cause occurrences of four to five lay and incubation cycles in the breeding season.
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Affiliation(s)
- Y M Huang
- Department of Animal Science, South China Agricultural University, Guangzhou 510642, China
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Huang YM, Chen RM. Scheduling multiprocessor job with resource and timing constraints using neural networks. IEEE Trans Syst Man Cybern B Cybern 2008; 29:490-502. [PMID: 18252324 DOI: 10.1109/3477.775265] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The Hopfield neural network is extensively applied to obtaining an optimal/feasible solution in many different applications such as the traveling salesman problem (TSP), a typical discrete combinatorial problem. Although providing rapid convergence to the solution, TSP frequently converges to a local minimum. Stochastic simulated annealing is a highly effective means of obtaining an optimal solution capable of preventing the local minimum. This important feature is embedded into a Hopfield neural network to derive a new technique, i.e., mean field annealing. This work applies the Hopfield neural network and the normalized mean field annealing technique, respectively, to resolve a multiprocessor problem (known to be a NP-hard problem) with no process migration, constrained times (execution time and deadline) and limited resources. Simulation results demonstrate that the derived energy function works effectively for this class of problems.
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Affiliation(s)
- Y M Huang
- Dept. of Eng. Sci., Nat. Cheng Kung Univ., Tainan
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Liu Z, Shi ZD, Liu Y, Li MY, Huang YM, Yao BH. Molecular cloning and characterisation of the Magang goose prolactin gene. Gen Comp Endocrinol 2008; 155:208-16. [PMID: 17570367 DOI: 10.1016/j.ygcen.2007.04.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2006] [Revised: 04/20/2007] [Accepted: 04/23/2007] [Indexed: 11/21/2022]
Abstract
In studying the roles of prolactin in regulation of seasonal reproduction, incubation, broodiness and laying performance in goose, the goose PRL gene was cloned in Magang goose. The goose PRL cDNA shared 98.4%, 92.2%, 92%, and 91.9% sequence homology to duck, turkey, chicken and quail PRLs, respectively. The goose PRL gene consisted of 5 exons and 4 introns, just as in other species. The 5' proximal regulatory region shared high homology with those in other avian species as well, and, apart from other non-specific transcription factor binding sites, contained 2 regulatory element binding sites, a Pit-1 (-130/-122) and a VIP response element (-64/-53). The deduced 199-residue mature goose PRL shared 98.5%, 94%, 93%, and 92% homology to duck, quail, chicken, and turkey PRLs, respectively. When compared with other vertebrates, all residues were found to be highly conserved at the key positions in the 4 conserved domains (PD1-PD4), including the 6 cysteine residues at positions 4, 11, 58, 175, 191, and 199. The only exception was a substitution of Arginine by Histidine at position 176 in the mature PRL peptide. These findings render goose PRL as having a similar hydropathy profile and similar secondary and tertiary structures with other PRLs. Goose PRL also possesses an N-linked glycosylation site (Asn-X-Ser), at position 6, and an alternative glycosylation site (Asn-Gly-Cys), at position 56. Five PRL isoforms were detected in goose, as well as in chicken pituitary glands, by immunoblotting analysis. Results of this study not only provided a starting point for further study of PRL function, synthesis, and secretion in goose species, but also for breeding new goose lines efficiently using the genomic information.
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Affiliation(s)
- Z Liu
- Department of Animal Science, South China Agricultural University, Guangzhou 510642, China
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Shi ZD, Huang YM, Liu Z, Liu Y, Li XW, Proudman JA, Yu RC. Seasonal and photoperiodic regulation of secretion of hormones associated with reproduction in Magang goose ganders. Domest Anim Endocrinol 2007; 32:190-200. [PMID: 16626919 DOI: 10.1016/j.domaniend.2006.03.002] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2006] [Revised: 03/05/2006] [Accepted: 03/19/2006] [Indexed: 11/25/2022]
Abstract
This study examined the reproductive endocrine profile under natural and artificial photoperiods in Magang goose ganders. Group 1 ganders (n=8) served as non-treated controls and were exposed to natural photoperiod throughout the experiment from 13th January to 17th December 2004. Group 2 ganders (n=8) were exposed to 18 h long daily photoperiod for 60 days from 13 January till 15 March 2004 and again to 16 h photoperiod for 75 days till 10th October 2004, and the 11h short photoperiod in the remainder periods of the experiment. In control ganders, plasma LH concentrations were high in normal breeding seasons (August-March) and decreased to low levels in non-breeding season from April to July. Testosterone concentrations changed similarly to that of LH throughout the seasons. Seasonal pattern of PRL concentrations was opposite to those of LH and testosterone, with low values in breeding season and high values in non-breeding season. In artificial photoperiod treated ganders, increasing photoperiod increased PRL and decreased LH and testosterone concentrations, while decreasing photoperiod reversed these changes. There were no seasonal or photoperiod caused changes in plasma T3 concentrations in both control ganders and artificial photoperiod treated ganders. These results demonstrated that in Magang goose ganders that long photoperiod stimulates PRL secretion and decreases LH secretion, which terminates reproductive season in spring and early summer, and short photoperiod stimulates LH secretion and inhibits PRL secretion rendering ganders enter into reproductive season.
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Affiliation(s)
- Z D Shi
- Department of Animal Science, South China Agricultural University, Guangzhou, 510642, PR China.
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Huang YM, Chou HM, Hsieh TH, Wang JC, Chiou WL. Cryptic characteristics distinguish diploid and triploid varieties of Pteris fauriei (Pteridaceae). ACTA ACUST UNITED AC 2006. [DOI: 10.1139/b05-160] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [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
There are two varieties of Pteris fauriei Hieron. in Taiwan: P. fauriei var. fauriei and P. fauriei var. minor Hieron. Their mature sporophytes are virtually indistinguishable based on gross morphology. To better understand these two varieties and the differences between them, and to determine whether they are based on different ploidies, we examined and compared the sporophytes and gametophytes of both varieties in detail. Each variety exhibited distinct, constant cryptic characteristics and cytotype. Based on the diameter of spores from type specimens, we confirmed that P. fauriei var. minor is diploid and that P. fauriei var. fauriei is triploid. Diploid sporophytes produced 64-spore sporangia. Their haploid gametophytes produced archegonia and antheridia containing 64 sperm each. Gametophytes cultured for 10 weeks formed sexual sporophytes, the first fronds of which lacked midribs. Triploid sporophytes produced 32-spore sporangia. Triploid spores were significantly larger in diameter than haploid spores. Triploid gametophytes did not produce archegonia but did produce 32-sperm antheridia, which were significantly larger in diameter than antheridia produced by haploid gametophytes. The life span of triploid gametophytes was 4 weeks shorter than that of haploid gametophytes. After 6 weeks in culture, apomictic triploid sporophytes arose directly from gametophyte cells. Each of their first fronds had three pinnae and a midrib. These data are useful for delimiting P. fauriei var. fauriei and P. fauriei var. minor.
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Affiliation(s)
- Yao-Moan Huang
- Department of Life Science, National Taiwan Normal University, Taipei 116, Taiwan
- Department of Biotechnology, Yuanpei Institute of Science and Technology, Hsinchu 300, Taiwan
- Department of Natural Science Education, National University of Tainan, Tainan 700, Taiwan
- Division of Forest Biology, Taiwan Forestry Research Institute, Taipei 100, Taiwan
| | - Hsueh-Mei Chou
- Department of Life Science, National Taiwan Normal University, Taipei 116, Taiwan
- Department of Biotechnology, Yuanpei Institute of Science and Technology, Hsinchu 300, Taiwan
- Department of Natural Science Education, National University of Tainan, Tainan 700, Taiwan
- Division of Forest Biology, Taiwan Forestry Research Institute, Taipei 100, Taiwan
| | - Tsung-Hsin Hsieh
- Department of Life Science, National Taiwan Normal University, Taipei 116, Taiwan
- Department of Biotechnology, Yuanpei Institute of Science and Technology, Hsinchu 300, Taiwan
- Department of Natural Science Education, National University of Tainan, Tainan 700, Taiwan
- Division of Forest Biology, Taiwan Forestry Research Institute, Taipei 100, Taiwan
| | - Jenn-Che Wang
- Department of Life Science, National Taiwan Normal University, Taipei 116, Taiwan
- Department of Biotechnology, Yuanpei Institute of Science and Technology, Hsinchu 300, Taiwan
- Department of Natural Science Education, National University of Tainan, Tainan 700, Taiwan
- Division of Forest Biology, Taiwan Forestry Research Institute, Taipei 100, Taiwan
| | - Wen-Liang Chiou
- Department of Life Science, National Taiwan Normal University, Taipei 116, Taiwan
- Department of Biotechnology, Yuanpei Institute of Science and Technology, Hsinchu 300, Taiwan
- Department of Natural Science Education, National University of Tainan, Tainan 700, Taiwan
- Division of Forest Biology, Taiwan Forestry Research Institute, Taipei 100, Taiwan
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Huang YM, Adikari S, Båve U, Sanna A, Alm G. Multiple sclerosis: interferon-beta induces CD123(+)BDCA2- dendritic cells that produce IL-6 and IL-10 and have no enhanced type I interferon production. J Neuroimmunol 2005; 158:204-12. [PMID: 15589055 DOI: 10.1016/j.jneuroim.2004.08.014] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2004] [Revised: 08/09/2004] [Accepted: 08/12/2004] [Indexed: 11/18/2022]
Abstract
Interferon-beta (IFN-beta), an approved drug for multiple sclerosis (MS), acts on dendritic cells (DC) by suppressing IL-12p40 and increasing IL-10. This results in Th2-biased immune responses. The nature of IFN-beta-modulated DC remains elusive. Previously, we observed that IFN-beta dose dependently induces expression of CD123, i.e., a classical marker for plasmacytoid DC, on human blood monocyte-derived myeloid DC. Such IFN-beta-modulated DCs produce predominantly IL-10 but are IL-12 deficient, with potent Th2 promotion. In the present study, we further characterize IFN-beta-modulated DC by using recently identified blood DC antigens (BDCA), and investigate their ability to produce type I IFN in response to virus stimulation. We show that IFN-beta induces development of CD123+ DC from human blood monocytes, which coexpress BDCA4+ but are negative for BDCA2-, a specific marker for plasmacytoid DC. Such IFN-beta-modulated DC can produce IL-6 and IL-10 but not IL-12p40, and have no enhanced IFN-alpha and IFN-beta production. The findings indicate that IFN-beta-modulated DCs represent a myeloid DC subset with diminished CD11c, BDCA-1 and CD1a expression. They may promote Th2 and B cell differentiation through IL-6 and IL-10 production, and suppression of IL-12p40, but they have no enhanced antiviral capacity.
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Affiliation(s)
- Y M Huang
- Division of Neuroimmunology, Karolinska Institute, Alfred Nobels allé 10, 141 83 Stockholm, Sweden.
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Affiliation(s)
- H Link
- Division of Neurology, Karolinska Institute, Huddinge University Hospital, SE-141 86 Stockholm, Sweden.
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Huang TY, Huang YM, Wang XL, Li XM, Zhang ZX, Wang SQ, Wang GZ, Pan B, Huang Z, Fu WZ, Liu H, Gao Q, Zhang S, Shang L, Xu G, Sheng Y, Liu T, Li P, Zeng F, Che Y. [Investigation on genotype constitution of different Plasmodium vivax isolates and its geographical distribution in China]. Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi 2003; 19:260-4. [PMID: 12572034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To investigate the population constitution and geographical distribution of Plasmodium vivax in China using molecular technique. METHODS Blood-spot filter paper samples with related epidemiological data were collected from vivax malaria patients living in malarious area of 10 provinces (autonomous region) in China. Semi-nested- or nested-allelic-specific PCR genotyping method was used to identify CSP genotypes, families and types of Plasmodium vivax of each isolate from these patients. RESULTS Of 384 field isolates of Plasmodium vivax, 258 temperate zone family strains were identified, including 14 allelic variant genotypes spreading among 10 sampling provinces; allelic variants sized less than 731 bp were only seen in 5 provinces in southern China; 79 tropical zone family strains including 5 genotypes were also distributed in 5 provinces of southern China south to 25 degrees N. lat; and 14 PV Type-2 strains including 2 genotypes were found in some areas of Hainan and Yunnan Provinces. In addition, 33 isolates from genotype-mixed infections were revealed. CONCLUSION At present, area north to 25 degrees N. lat. of the country is the sole area prevalent for Plasmodium vivax family strains of temperate zone; there is overlapping distribution of P. v. of temperate zone family and tropical zone family of this parasite in the southern China south to 25 degrees N. lat; where the most complex isolate constitution is in Yunnan and Hainan Provinces, and PV Type-2 strains have been found in some areas of the two provinces. Besides, there were 2 groups of genotype with distinct geographic distribution feature within the temperate zone family.
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Affiliation(s)
- T Y Huang
- Guizhou Provincial Institute of Parasitic Diseases, Guiyang 550001
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Huang TY, Wang XL, Li XM, Huang YM, Zeng FX, Che Y, Zhang SM, Fu WZ, Zhang ZX, Zhang GS, Cai XZ, Wang SQ, Wang GZ. [Studies on identification of circumsporozoite protein genotyping of Plasmodium vivax]. Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi 2003; 18:272-6. [PMID: 12567633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To develop a new method of genotyping circumsporozoite protein (CSP) gene for identification of field isolates of Plasmodium vivax. METHODS Improved Chelex-100 ion-exchange method was used to extract DNA from blood filter paper samples, nested PCR and allele-specific PCR techniques, agarose gel electrophoresis analysis and dot/southern blotting-probe hybridization were employed for amplification, resolution and identification of the diagnostic fragments. RESULTS Using the nest-allele-specific PCR assay reported here, small amounts of DNA extracted from a piece of blood filter paper sample were amplified which produced three different size ranges of diagnostic bands: 650-770 bp PV-species-specific band, 170-230 bp diagnostic band for temperate zone family and 588 bp band for PV type-2. The sizes and patterns of the bands produced by the reference strains were consistent with those of designed target sequences. Of 59 examined isolates from 6 provinces of China, 42 temperate zone family strains, 15 tropical zone family strains and two PV type-2 strains were identified. CONCLUSION 1, Three genotype strains of P. vivax mentioned above could be identified by this method with only two rounds of PCR and without probe hybridization. 2, The preliminary results showed that PV type-1 including temperate zone family strains and tropical zone family strains as well as PV type-2 strains are present in China. In addition, another CSP genotype with both sequence characteristics of temperate zone and tropical zone family might also be present in China.
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Affiliation(s)
- T Y Huang
- Guizhou Provincial Institute of Parasitic Diseases, Guiyang 550001
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