|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | RGF1 INSENSITIVE 1 to 5, a group of LRR receptor-like kinases, are essential for the perception of root meristem growth factor I in Arabidopsis thaliana显示文摘RGF1,分泌的肽荷尔蒙,戏在 Arabidopsis 在根分裂组织开发给角色调音。以前的研究显示功能的 RGF1 需要是在由 tyrosylprotein sulfotransferase 的酷氨酸残余的 sulfated 并且 RGF1 主要经由二个下游的抄写因素调整根分裂组织活动,过多 1 (PLT1 ) 并且 PLT2。然而,细胞外的 RGF1 怎么被一个植物房间察觉,是不清楚的。用基因途径,我们发现了充满白氨酸的重复的 clade 像受体的 kinases,指定了为 RGF1 感觉迟钝 1 (RGI1 ) 到 RGI5,用作 RGF1 的受体。二独立 rgi1 rgi2 rgi3 rgi4 rgi5 五倍的异种与分裂组织的一种小尺寸显示一致的短主要的根显型。四倍的异种显示出的 rgi1 rgi2 rgi3 rgi4 到 RGF1 的显著地减少的敏感,和五倍的异种对 RGF1 完全感觉迟钝。PLT1 和 PLT2 的表示在五倍的异种是几乎无法发现的。一个 RGI2 倡导者极大地在五倍的异种驾驶的 PLT2 的宫外的表示救了它的根分裂组织缺点。RGI 之一, RGI1,随后详细生物化学地被分析。在 vitro 点弄污和下拉,分析显示 RGI1 能身体上与 RGF1 交往。RGF1 的外长的申请能快速并且同时导致 RGI1 的 phosphorylation 和 ubiquitination,显示 RGI1 能察觉并且 transduce RGF1 肽信号。然而,激活的 RGI1 多半很快被翻。这些结果表明那 RGI,充当 RGF1 的受体,在在 Arabidopsis thaliana 的 RGF1-PLT-mediated 根分裂组织开发的戏必需品角色。 | Yang Ou Xiaoting Lu Quaner Zi Qingqing Xun Jingjie Zhang Yujun Wu Hongyong Shi Zhuoyun Wei Baolin Zhao Xiaoyue Zhang Kai He Xiaoping Gou Chuanyou Li Jia Li | 2016 | Cell Research2016,26,6: | 18 |
| 2 | Asymmetric distribution of cytokinins determines root hydrotropism in Arabidopsis thaliana显示文摘The phenomenon of plant root tips sensing moisture gradient in soil and growing towards higher water potential is designated as root hydrotropism,which is critical for plants to survive when water is a limited factor.Molecular mechanisms regulating such a fundamental process,however,are largely unknown.Here we report our identification that cytokinins are key signaling molecules directing root growth orientation in a hydrostimulation(moisture gradient)condition.Lower water potential side of the root tip shows more cytokinin response relative to the higher water potential side.Consequently,two cytokinin downstream type-A response regulators,ARR16 and ARR17,were found to be up-regulated at the lower water potential side,causing increased cell division in the meristem zone,which allows the root to bend towards higher water potential side.Genetic analyses indicated that various cytokinin biosynthesis and signaling mutants,including the arr16 arr17 double mutant,are significantly less responsive to hydrostimulation.Consistently,treatments with chemical inhibitors interfering with either cytokinin biosynthesis or cell division completely abolished root hydrotropic response.Asymmetrically induced expression of ARR16 or ARR17 effectively led to root bending in both wild-type and miz1,a previously known hydrotropism-defective mutant.These data demonstrate that asymmetric cytokinin distribution is a primary determinant governing root hydrotropism. | Jinke Chang Xiaopeng Li Weihao Fu Jiawen Wang Yueyuan Yong Hongyong Shi Zhaojun Ding Hong Kui Xiaoping Gou Kai He Jia Li | 2019 | Cell Research2019,29,12: | 4 |
| 3 | RGF1-RGI1,a Peptide-Receptor Complex,Regulates Arabidopsis Root Meristem Development via a MAPK Signaling Cascade显示文摘Root growth is maintained by the continuous division of cells in the apical meristem.ROOT MERISTEM GROWTH FACTOR 1(RGF1)is a critical peptide hormone regulating root stem cell niche maintenance.Previous studies discovered that five closely related leucine-rich repeat receptor-like protein kinases(LRRRLKs),named RGF1 INSENSITIVES(RGIs)or RGF1 RECEPTORS(RGFRs),are able to perceive the RGF1 signal and redundantly control root stem cell niche maintenance.RGF1 regulates root meristem activity mainly via two downstream transcription factors,PLETHORA 1(PLT1)and PLT2.Regulatory proteins connecting cell surface RGF1-RGI1 and nuclear PLTs,however,were not identified.Here,we report that the mitogen-activated protein(MAP)kinase kinase 4(MKK4)and MAP kinase 3(MPK3)were coimmunoprecipitated with RGI1-FLAG after Arabidopsis seedlings were treated with RGF1.Genetic and biochemical assays confirmed that MKK4 and MKK5,and their downstream targets MPK3 and MPK6,are essential RG卜dependent regulators of root meristem development.In addition,we found that the MKK4/MKK5-MPK3/MPK6 module functions downstream of YDA,a MAPKKK.Our results demonstrate that RGF1-RGI1 regulate the expression of PLT1/PLT2 via a YDA-MKK4/MKK5-MPK3/MPK6 signaling cascade. | Xiaoting Lu Hongyong Shi Yang Ou Yanwei Cui Jinke Chang Liang Peng Xiaoping Gou Kai He Jia Li | 2020 | Molecular Plant2020,13,11: | 3 |
| 4 | Hepatitis B virus X protein promotes hepatoma cell invasion and metastasis by stabilizing S nail protein显示文摘 | Haiou Liu Le Xu Hongyong He Yu Zhu Jing Liu Shanshan Wang Lin Chen Qian Wu Jiejie Xu Jianxin Gu | 2012 | Cancer Sci2012,,12: | 1 |
| 5 | Gastrin attenuates sepsis-induced myocardial dysfunction by down-regulation of TLR4 expression in macrophages显示文摘Myocardial dysfunction is the most serious complication of sepsis.Sepsis-induced myocardial dysfunction(SMD)is often associated with gastrointestinal dysfunction,but its pathophysiological significance remains unclear.The present study found that patients with SMD had higher plasma gastrin concentrations than those without SMD.In mice,knockdown of the gastrin receptor,cholecystokinin B receptor(Cckbr),aggravated lipopolysaccharide(LPS)-induced cardiac dysfunction and increased inflammation in the heart,whereas the intravenous administration of gastrin ameliorated SMD and cardiac injury.Macrophage infiltration plays a significant role in SMD because depletion of macrophages by the intravenous injection of clodronate liposomes,48 h prior to LPS administration,alleviated LPSinduced cardiac injury in Cckbr-deficient mice.The intravenous injection of bone marrow macrophages(BMMs)overexpressing Cckbr reduced LPS-induced myocardial dysfunction.Furthermore,gastrin treatment inhibited toll-like receptor 4(TLR4)expression through the peroxisome proliferator-activated receptor a(PPAR-a)signaling pathway in BMMs.Thus,our findings provide insights into the mechanism of the protective role of gastrin/CCKBR in SMD,which could be used to develop new treatment modalities for SMD. | Dandong Fang Yu Li Bo He Daqian Gu Mingming Zhang Jingwen Guo Hongmei Ren Xinyue Li Ziyue Zhang Ming Tang Xingbing Li Donghai Yang Chunmei Xu Yijie Hu Hongyong Wang Pedro AJose Yu Han Chunyu Zeng | 2023 | Acta Pharmaceutica Sinica B2023,13,9: | 1 |
| 6 | Key technologies of the emergency platform in China显示文摘An emergency platform is an informatization support platform for disaster information perception,disaster situa-tional awareness,and emergency decision command.This is a key tool for ensuring the efficiency and effectiveness of emergency responses.Numerous large countries have conducted in-depth research on the key technologies of emergency platforms.Over the past 20 years,with the reform of emergency management mechanisms,China has developed two generations of emergency platform systems.This paper reviews the two generations of emergency platforms and summarizes their key technologies including multi-source-based monitoring and early warning,multi-hazard risk assessment,“scenario-response”-based decision support,synthetical forecasting based on in-cident chain,and emergency common operational picture(COP)for command and dispatch.Future research directions for the next generation emergency platforms are also proposed. | Hongyong Yuan Lida Huang Tao Chen Yang Chen Hui Zhang Xuerui Chen Qing Deng Zhichao He Jiajun Wang Yiting Wang | 2022 | Journal of Safety Science and Resilience2022,3,4: | 0 |
| 7 | Forkhead box protein O1(FoxO1)regulates lipids metabolism and cell proliferation mediated by insulin and PI3K-Akt-mTOR pathway in goose primary hepatocytes显示文摘In order to explore the role of forkhead box protein O1(FoxO1)in the lipid metabolism and cell proliferation,goose primary hepatocytes were isolated and incubated with insulin or PI3K-Akt-mTOR pathway dual inhibitor NVPBEZ235,and then transfected with FoxO1 interference plasmid.The related parameters of lipid metabolism and cell proliferation were measured.The results firstly showed that FoxO1 interference increased the intracellular TG and lipids concentration(P<0.05);and increased the proliferative index(PI),cell DNA synthesis,protein expression of Cyclin D1 in goose primary hepatocytes(P<0.05).Secondly,the co-treatment of insulin and FoxO1 interference increased the mRNA level and protein content of Cyclin D1(P<0.05);however,there was no significant difference between the insulin treatment and the co-treatment of insulin and miR-FoxO1 interference in the intracellular TG and lipids concentration and PI(P>0.05).Lastly,the decrease of intracellular TG and lipids concentration and PI induced by NVP-BEZ235 was up-regulated by FoxO1 interference significantly(P<0.05).In summary,FoxO1 could regulate the lipids metabolism and cell proliferation mediated by PI3K-Akt-mTOR signaling pathway in goose primary hepatocytes.Further investigations are required to highlight the potential role of FoxO1 in the lipid metabolism and cell proliferation mediated by insulin in goose primary hepatocyte. | RONGXUE WEI CHUNCHUN HAN FENGJIANG YE SHOUHAI WEI FANG HE HEHE LIU LIANG LI HONGYONG XU SHENQIANG HU XIANYIN ZENG | 2022 | BIOCELL2022,46,1: | 0 |
| 8 | Predictors of mortality in patients with acute smallbowel perforation transferred to ICU after emergency surgery:a single-centre retrospective cohort study显示文摘Background Although small-bowel perforation is a life-threatening emergency even after immediate surgical intervention,studies have rarely investigated surgical outcomes due to its relatively low incidence.This study aimed to investigate the outcomes of emergency surgery for patients with small-bowel perforation transferred to the intensive care unit(ICU)and the risk factors for mortality.Methods Consecutive patients with small-bowel perforation who were confirmed via emergency surgery and transferred to the ICU in Zhongshan Hospital,Fudan University(Shanghai,China)between February 2011 and May 2020 were retrospectively analysed.Medical records were reviewed to determine clinical features,laboratory indicators,surgical findings,and pathology.Results A total of 104 patients were included in this study,among whom 18(17.3%),59(56.7%),and 27(26.0%)underwent perforation repair,segmental resection with primary anastomosis,and small-bowel ostomy,respectively.Malignant tumours were the leading cause of perforation in these patients(40.4%,42/104).The overall post-operative complication rate and mortality rates were 74.0%(77/104)and 19.2%(20/104),respectively.Malignant tumour-related perforation(odds ratio[OR],4.659;95%confidence interval[CI],1.269–17.105;P=0.020)and high post-operative arterial blood-lactate level(OR,1.479;95%CI,1.027–2.131;P=0.036)were identified as independent risk factors for post-operative mortality in patients with small-bowel perforation transferred to the ICU.Conclusions Patients with small-bowel perforation who are transferred to the ICU after emergency surgery face a high risk of post-operative complications and mortality.Moreover,those patients with malignant tumour-related perforation and higher post-operative blood-lactate levels have poor prognosis. | Jianzhang Wu Ping Shu Hongyong He Haojie Li Zhaoqing Tang Yihong Sun Fenglin Liu | 2022 | Gastroenterology Report2022,10,1: | 0 |
| 9 | Effect of D_(4)Dopamine Receptor on Na^(+)-K^(+)-ATPase Activity in Renal Proximal Tubule Cells显示文摘Objective:Dopamine,via its receptors,plays a vital role in the maintenance of blood pressure by modulating renal sodium transport.However,the role of the D_(4)dopamine receptor(D_(4)receptor)in renal proximal tubules(PRTs)is still unclear.This study aimed to verify the hypothesis that activation of D_(4)receptor directly inhibits the activity of the Na+-K+-ATPase(NKA)in RPT cells.Methods:NKA activity,nitric oxide(NO)and cyclic guanosine monophosphate(cGMP)levels were measured in RPT cells treated with the D_(4)receptor agonist PD168077 and/or the D_(4)receptor antagonist L745870,the NO synthase inhibitor NG-nitro-L-arginine-methyl ester(L-NAME)or the soluble guanylyl cyclase inhibitor 1H-[1,2,4]oxadiazolo-[4,3-a]quinoxalin-1-one(ODQ).Total D_(4)receptor expression and its expression in the plasma membrane were investigated by immunoblotting in RPT cells from Wistar-Kyoto(WKY)rats and spontaneously hypertensive rats(SHRs).Results:Activation of D_(4)receptors with PD168077,inhibited NKA activity in RPT cells from WKY rats in a concentration-and time-dependent manner.The inhibitory effect of PD168077 on NKA activity was prevented by the addition of the D_(4)receptor antagonist L745870,which by itself had no effect.The NO synthase inhibitor L-NAME and the soluble guanylyl cyclase inhibitor ODQ,which by themselves had no effect on NKA activity,eliminated the inhibitory effect of PD168077 on NKA activity.Activation of D_(4)receptors also increased NO levels in the culture medium and cGMP levels in RPT cells.However,the inhibitory effect of D_(4)receptors on NKA activity was absent in RPT cells from SHRs,which could be related to decreased plasma membrane expression of D_(4)receptors in SHR RPT cells.Conclusions:Activation of D_(4)receptors directly inhibits NKA activity via the NO/cGMP signaling pathway in RPT cells from WKY rats but not SHRs.Aberrant regulation of NKA activity in RPT cells may be involved in the pathogenesis of hypertension. | Duofen He Hongmei Ren Hongyong Wang Pedro A.Jose Chunyu Zeng Tianyang Xia Jian Yang | 2023 | Cardiology Discovery2023,3,1: | 0 |