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Cheng X, Liang D, Li X, Deng C, Ye M, Yang J, Liu Y, Wu K, Wu J, Tian P. Hypoxia Potentiated Lung Cancer Cell Migration and Invasion by up-regulating HIF1α/JAK2/STAT3 Axis and Activating MMP13 Transcription. Cell Biochem Biophys 2024; 82:259-270. [PMID: 38129709 DOI: 10.1007/s12013-023-01205-5] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Accepted: 11/30/2023] [Indexed: 12/23/2023]
Abstract
Excessive aggressive migration and invasion are important factors that increase the mortality of cancer patients. Matrix metalloproteinase 13 (MMP13) expression is positively correlated with lung cancer malignancy. However, the mechanism underlying an elevated MMP13 expression is not clearly defined. In this study, we demonstrated that hypoxia induced by CoCl2 enhanced the expression of HIF1α, JAK2, STAT3 and MMP13 in A549 cells. A positive correlation between HIF1α and MMP13 expression was observed in lung adenocarcinoma patients. Mechanically, hypoxia upregulated HIF1α/JAK2/STAT3 signal axis, promoted transcription factor STAT3 to bind to MMP13 promoter region, and activated MMP13 transcription, finally promoted cell invasion and migration. However, stattic (STAT3 inhibitor) could reverse this effect caused by STAT3 in A549 cells. Together our data indicated that hypoxia might promote lung cancer cell migration and invasion through the HIF1α/JAK2/STAT3 axis by activating MMP13 transcription. MMP13 could be a promising therapeutic target for lung adenocarcinoma metastasis.
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Affiliation(s)
- Xiaoju Cheng
- Scientific Research Center, The Third Affiliated Hospital of Zunyi Medical University (The First People's Hospital of Zunyi), Zunyi, 563003, China
| | - Damin Liang
- Department of Medical Technology, Zunyi Medical College, Zunyi, 563003, China
| | - Xiaoqian Li
- Scientific Research Center, The Third Affiliated Hospital of Zunyi Medical University (The First People's Hospital of Zunyi), Zunyi, 563003, China
| | - Chengmin Deng
- Scientific Research Center, The Third Affiliated Hospital of Zunyi Medical University (The First People's Hospital of Zunyi), Zunyi, 563003, China
| | - Meng Ye
- Scientific Research Center, The Third Affiliated Hospital of Zunyi Medical University (The First People's Hospital of Zunyi), Zunyi, 563003, China
| | - Jiao Yang
- Scientific Research Center, The Third Affiliated Hospital of Zunyi Medical University (The First People's Hospital of Zunyi), Zunyi, 563003, China
| | - Yurui Liu
- Scientific Research Center, The Third Affiliated Hospital of Zunyi Medical University (The First People's Hospital of Zunyi), Zunyi, 563003, China
| | - Kaifeng Wu
- Scientific Research Center, The Third Affiliated Hospital of Zunyi Medical University (The First People's Hospital of Zunyi), Zunyi, 563003, China
| | - Jie Wu
- Scientific Research Center, The Third Affiliated Hospital of Zunyi Medical University (The First People's Hospital of Zunyi), Zunyi, 563003, China.
| | - Peng Tian
- Scientific Research Center, The Third Affiliated Hospital of Zunyi Medical University (The First People's Hospital of Zunyi), Zunyi, 563003, China.
- Department of Pathology, The Third Affiliated Hospital of Zunyi Medical University (The First People's Hospital of Zunyi), Zunyi, 563003, China.
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Wang K, Yang Z, Luo S, Quan W. Endophytic Pseudomonas fluorescens promotes changes in the phenotype and secondary metabolite profile of Houttuynia cordata Thunb. Sci Rep 2024; 14:1710. [PMID: 38243055 PMCID: PMC10798976 DOI: 10.1038/s41598-024-52070-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 01/12/2024] [Indexed: 01/21/2024] Open
Abstract
The interactions between microbes and plants are governed by complex chemical signals, which can forcefully affect plant growth and development. Here, to understand how microbes influence Houttuynia cordata Thunb. plant growth and its secondary metabolite through chemical signals, we established the interaction between single bacteria and a plant. We inoculated H. cordata seedlings with bacteria isolated from their roots. The results showed that the total fresh weight, the total dry weight, and the number of lateral roots per seedling in the P. fluorescens-inoculated seedlings were 174%, 172% and 227% higher than in the control seedlings. Pseudomonas fluorescens had a significant promotional effect of the volatile contents compared to control, with β-myrcene increasing by 192%, 2-undecanone by 203%, decanol by 304%, β-caryophyllene by 197%, α-pinene by 281%, bornyl acetate by 157%, γ-terpinene by 239% and 3-tetradecane by 328% in P. fluorescens-inoculated H. cordata seedlings. the contents of chlorogenic acid, rutin, quercitin, and afzelin were 284%, 154%, 137%, and 213% higher than in control seedlings, respectively. Our study provided basic data to assess the linkages between endophytic bacteria, plant phenotype and metabolites of H. cordata to provide an insight into P. fluorescens use as biological fertilizer, promoting the synthesis of medicinal plant compounds.
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Affiliation(s)
- Kaifeng Wang
- Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment of Guizhou Province, Guizhou Normal University, Guiyang, Guizhou, China
| | - Zhannan Yang
- Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment of Guizhou Province, Guizhou Normal University, Guiyang, Guizhou, China.
| | - Shiqiong Luo
- Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment of Guizhou Province, Guizhou Normal University, Guiyang, Guizhou, China.
- School of Life Science, Guizhou Normal University, Guiyang, Guizhou, China.
| | - Wenxuan Quan
- Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment of Guizhou Province, Guizhou Normal University, Guiyang, Guizhou, China
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Du J, Ren Y, Li J, Zhang S, Huang H, Liu J. The study on the effect of mercury pollution on soil microorganisms around mercury mining area. Sci Rep 2023; 13:21605. [PMID: 38062085 PMCID: PMC10703898 DOI: 10.1038/s41598-023-48932-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 12/01/2023] [Indexed: 12/18/2023] Open
Abstract
In order to further explore the effects of soil mercury pollution on soil microbial diversity and community structure, soil samples were randomly collected from 2 m, 20 m, 30 m, 500 m and 650 m periphery of Wanshan mining area, as 5 different treatments. Each treatment had 4 replicates. Soil microbial DNA was extracted from 20 soil samples, and then high-throughput sequencing technology was used to analyse the structure and distribution of bacterial and fungal communities. The results showed that the number of bacterial and fungal communities in T0-T30 treatments was significantly larger than that in T500-T650 treatments at order, family and genus level. Whatever, the number of uniquely distributed bacterial and fungal communities among 4 replicates soil samples was quite different at order, family and genus level. The results of the effect on the microbial community structure showed that there were both the same dominant bacterial and fungal communities, and the different dominant bacterial and fungal communities at any classification level, moreover, the number of same dominant bacterial and fungal communities was larger than that of different dominant bacterial and fungal communities. The results of relationship between soil environment factors and bacterial and fungal community structure showed that distance (Hg2+), EC and pH had a high correlation with community structure, especially the distance factor, that is, the content of mercury in soil had the highest effects on community structure. The internal heterogeneity of soil caused significant differences in bacterial and fungal community structure, and the emergence of dominant bacterial and fungal communities was a manifestation of better adaptability to long-term mercury stress and other stresses in soil, which will provide a scientific reference for further exploring the mechanism of mercury enrichment between microorganisms and plants.
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Affiliation(s)
- Jianxiong Du
- School of Management Science and Engineering, Guizhou University of Finance and Economics, Guiyang, 550025, China
| | - Yuxiang Ren
- School of Foreign Languages, Guizhou Normal University, Guiyang, 550025, China
| | - Jianfeng Li
- Institute of Soil and Environment Bioremediation in Karst Habitats, Key Laboratory of Biological Resources Exploitation and Utilization in Universities of Guizhou Province, Guizhou Normal College, Guiyang, 550018, China.
| | - Shuqing Zhang
- Institute of Soil and Environment Bioremediation in Karst Habitats, Key Laboratory of Biological Resources Exploitation and Utilization in Universities of Guizhou Province, Guizhou Normal College, Guiyang, 550018, China
| | - Huiqiong Huang
- College of Public Management, Guizhou University of Finance and Economics, Guiyang, 550025, China
| | - Jie Liu
- College of Public Management, Guizhou University of Finance and Economics, Guiyang, 550025, China
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Deng L, Wang Z, Qu B, Liu Y, Qiu W, Qi S. A Comparative Study on the Properties of Rosin-Based Epoxy Resins with Different Flexible Chains. Polymers (Basel) 2023; 15:4246. [PMID: 37959926 PMCID: PMC10647691 DOI: 10.3390/polym15214246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 10/21/2023] [Accepted: 10/24/2023] [Indexed: 11/15/2023] Open
Abstract
This study aims to reveal the effects of flexible chain lengths on rosin-based epoxy resin's properties. Two rosin-based epoxy monomers with varying chain lengths were synthesized: AR-EGDE (derived from ethylene glycol diglycidyl ether-modified acrylic acid rosin) and ARE (derived from acrylic acid rosin and epichlorohydrin). Diethylenetriamine (DETA), triethylenetetramine (TETA), and tetraethylenepentamine (TEPA) with different flexible chain lengths were used as curing agents. The adhesion, impact, pencil hardness, flexibility, water and heat resistance, and weatherability of the epoxy resins were systematically examined. It was found that when the flexible chains of rosin-based epoxy monomers were grown from ARE to AR-EGDE, due to the increased space of rosin-based fused rings, the toughness, adhesion, and water resistance of the rosin-based epoxy resins were enhanced, while the pencil hardness and heat resistance decreased. However, when the flexible chains of curing agents were lengthened, the resin's performance did not change significantly because the space between the fused rings changed little. This indicates that the properties of the rosin-based resins can only be altered when the introduced flexible chain increases the space between the fused rings. The study also compared rosin-based resins to E20, a commercial petroleum-based epoxy of the bisphenol A type. The rosin-based resins demonstrated superior adhesion, water resistance, and weatherability compared to the E20 resins, indicating the remarkable durability of the rosin-based resin.
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Affiliation(s)
- Lianli Deng
- Hunan Provincial Key Laboratory of Xiangnan Rare-Precious Metals Compounds and Applications, School of Chemistry and Environmental Science, Xiangnan University, Chenzhou 423000, China; (L.D.)
| | - Zehua Wang
- School of Chemistry & Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Bailu Qu
- Changsha Ecological and Environmental Monitoring Centre of Hunan Province, Changsha 410001, China
| | - Ying Liu
- School of Chemical Engineering, Guizhou Institute of Technology, Guiyang 550003, China
| | - Wei Qiu
- School of Chemical Engineering, Guizhou Institute of Technology, Guiyang 550003, China
| | - Shaohe Qi
- Hunan Provincial Key Laboratory of Xiangnan Rare-Precious Metals Compounds and Applications, School of Chemistry and Environmental Science, Xiangnan University, Chenzhou 423000, China; (L.D.)
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Chen J, Ran F, Shi J, Chen T, Zhao Z, Zhang Z, He L, Li W, Wang B, Chen X, Wang W, Long Y. Identification of the Causal Agent of Brown Leaf Spot on Kiwifruit and Its Sensitivity to Different Active Ingredients of Biological Fungicides. Pathogens 2022; 11:673. [PMID: 35745527 PMCID: PMC9229313 DOI: 10.3390/pathogens11060673] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/03/2022] [Accepted: 06/08/2022] [Indexed: 02/04/2023] Open
Abstract
Kiwifruit (Actinidia chinensis) is an important commercial crop in China, and the occurrence of diseases may cause significant economic loss in its production. In the present study, a new pathogen that causes brown leaf spot disease on kiwifruit was reported. The fungus was isolated from an infected sample and identified as Fusarium graminearum based on morphological and molecular evaluation. Koch's postulates were confirmed when the pathogen was re-isolated from plants with artificially induced symptoms and identified as F. graminearum. Based on the biological characteristics of the pathogen, it was determined that: its optimal growth temperature was 25 °C; optimal pH was 7; most suitable carbon source was soluble starch; most suitable nitrogen source was yeast powder; and best photoperiod was 12 h light/12 h dark. Further investigations were conducted by determining 50% effective concentrations (EC50) of several active ingredients of biological fungicides against F. graminearum. The results showed that among the studied fungicides, tetramycin and honokiol had the highest antifungal activity against this pathogen. Our findings provide a scientific basis for the prevention and treatment of brown leaf spot disease on kiwifruit.
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Affiliation(s)
- Jia Chen
- Research Center for Engineering Technology of Kiwifruit, Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang 550025, China; (J.C.); (F.R.); (J.S.); (T.C.); (Z.Z.); (Z.Z.); (L.H.); (W.L.); (B.W.); (X.C.); (W.W.)
| | - Fei Ran
- Research Center for Engineering Technology of Kiwifruit, Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang 550025, China; (J.C.); (F.R.); (J.S.); (T.C.); (Z.Z.); (Z.Z.); (L.H.); (W.L.); (B.W.); (X.C.); (W.W.)
| | - Jinqiao Shi
- Research Center for Engineering Technology of Kiwifruit, Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang 550025, China; (J.C.); (F.R.); (J.S.); (T.C.); (Z.Z.); (Z.Z.); (L.H.); (W.L.); (B.W.); (X.C.); (W.W.)
| | - Tingting Chen
- Research Center for Engineering Technology of Kiwifruit, Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang 550025, China; (J.C.); (F.R.); (J.S.); (T.C.); (Z.Z.); (Z.Z.); (L.H.); (W.L.); (B.W.); (X.C.); (W.W.)
| | - Zhibo Zhao
- Research Center for Engineering Technology of Kiwifruit, Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang 550025, China; (J.C.); (F.R.); (J.S.); (T.C.); (Z.Z.); (Z.Z.); (L.H.); (W.L.); (B.W.); (X.C.); (W.W.)
| | - Zhuzhu Zhang
- Research Center for Engineering Technology of Kiwifruit, Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang 550025, China; (J.C.); (F.R.); (J.S.); (T.C.); (Z.Z.); (Z.Z.); (L.H.); (W.L.); (B.W.); (X.C.); (W.W.)
| | - Linan He
- Research Center for Engineering Technology of Kiwifruit, Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang 550025, China; (J.C.); (F.R.); (J.S.); (T.C.); (Z.Z.); (Z.Z.); (L.H.); (W.L.); (B.W.); (X.C.); (W.W.)
| | - Wenzhi Li
- Research Center for Engineering Technology of Kiwifruit, Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang 550025, China; (J.C.); (F.R.); (J.S.); (T.C.); (Z.Z.); (Z.Z.); (L.H.); (W.L.); (B.W.); (X.C.); (W.W.)
| | - Bingce Wang
- Research Center for Engineering Technology of Kiwifruit, Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang 550025, China; (J.C.); (F.R.); (J.S.); (T.C.); (Z.Z.); (Z.Z.); (L.H.); (W.L.); (B.W.); (X.C.); (W.W.)
| | - Xuetang Chen
- Research Center for Engineering Technology of Kiwifruit, Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang 550025, China; (J.C.); (F.R.); (J.S.); (T.C.); (Z.Z.); (Z.Z.); (L.H.); (W.L.); (B.W.); (X.C.); (W.W.)
| | - Weizhen Wang
- Research Center for Engineering Technology of Kiwifruit, Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang 550025, China; (J.C.); (F.R.); (J.S.); (T.C.); (Z.Z.); (Z.Z.); (L.H.); (W.L.); (B.W.); (X.C.); (W.W.)
| | - Youhua Long
- Research Center for Engineering Technology of Kiwifruit, Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang 550025, China; (J.C.); (F.R.); (J.S.); (T.C.); (Z.Z.); (Z.Z.); (L.H.); (W.L.); (B.W.); (X.C.); (W.W.)
- Teaching Experimental Field of Guizhou University, Guizhou University, Guiyang 550025, China
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Huang J, Wang J, Luo G, He J. Tail properties and approximate distribution and expansion for extreme of LGMD. J Inequal Appl 2017; 2017:43. [PMID: 28255207 PMCID: PMC5310591 DOI: 10.1186/s13660-017-1316-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Accepted: 02/07/2017] [Indexed: 06/06/2023]
Abstract
We introduce logarithmic generalized Maxwell distribution motivated by Vodă (Math. Rep. 11:171-179, 2009), which is an extension of the generalized Maxwell distribution. Some interesting properties of this distribution are studied and the asymptotic distribution of the partial maximum of an i.i.d. sequence from the logarithmic generalized Maxwell distribution is gained. The expansion of the limit distribution from the normalized maxima is established under the optimal norming constants, which shows the rate of convergence of the distribution for normalized maximum to the extreme limit.
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Affiliation(s)
- Jianwen Huang
- School of Mathematics and Statistics, Southwest University, Chongqing, 400715 China
| | - Jianjun Wang
- School of Mathematics and Statistics, Southwest University, Chongqing, 400715 China
| | - Guowang Luo
- School of Mathematics and Computational Science, Zunyi Normal College, Zunyi, 563002 China
| | - Jun He
- School of Mathematics and Computational Science, Zunyi Normal College, Zunyi, 563002 China
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