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| 1 | Oncogenic AURKA-enhanced N6-methyladenosine modification increases DROSHA mRNA stability to transactivate STC1 in breast cancer stem-like cells显示文摘RNase III DROSHA is upregulated in multiple cancers and contributes to tumor progression by hitherto unclear mechanisms.Here,we demonstrate that DROSHA interacts withβ-Catenin to transactivate STC1 in an RNA cleavage-independent manner,contributing to breast cancer stem-like cell(BCSC)properties.DROSHA mRNA stability is enhanced by N6-methyladenosine(m^(6)A)modification which is activated by AURKA in BCSCs.AURKA stabilizes METTL14 by inhibiting its ubiquitylation and degradation to promote DROSHA mRNA methylation.Moreover,binding of AURKA to DROSHA transcript further strengthens the binding of the m^(6)A reader IGF2BP2 to stabilize m^(6)A-modified DROSHA.In addition,wild-type DROSHA,but not an m^(6)A methylation-deficient mutant,enhances BCSC stemness maintenance,while inhibition of DROSHA m^(6)A modification attenuates BCSC traits.Our study unveils the AURKA-induced oncogenic m^(6)A modification as a key regulator of DROSHA in breast cancer and identifies a novel DROSHA transcriptional function in promoting the BCSC phenotype. | Fei Peng Jie Xu Bai Cui Qilan Liang Sai Zeng Bin He Hong Zou Manman Li Huan Zhao Yuting Meng Jin Chen Bing Liu Shasha Lv Peng Chu Fan An Zifeng Wang Junxiu Huang Yajing Zhan Yuwei Liao Jinxin Lu Lingzhi Xu Jin Zhang Zhaolin Su Zhiguang Li Fangjun Wang Eric W-FLam Quentin Liu | 2021 | Cell Research2021,31,3: | 9 |
| 2 | Nuclear Aurora kinase A triggers programmed death-ligand 1-mediated immune suppression by activating MYC transcription in triple-negative breast cancer显示文摘Background:Increasing studies have reported that oncogenes regulate components of the immune system,suggesting that this is a mechanism for tumorigenesis.Aurora kinase A(AURKA),a serine/threonine kinase,is involved in cell mitosis and is essential for tumor cell proliferation,metastasis,and drug resistance.However,the mechanism by which AURKA is involved in immune response regulation is unclear.Therefore,this study aimed to investigate the role of AURKA in immune regulation in triple-negative breast cancer(TNBC).Methods:Peripheral blood mononuclear cells(PBMCs)were co-cultured with TNBC cells.The xCELLigence Real-Time Cell Analyzer-MP system was used to detect the killing efficiency of immune cells on TNBC cells.The expression of immune effector molecules was tested by quantitative real-time polymerase chain reaction(qRT-PCR)to evaluate immune function.Furthermore,to validate AURKA-regulated immune response in vivo,4T1 murine breast cancer cell line with AURKA overexpression or downregulation was engrafted into BALB/c mice.The distribution and proportion of immune cells in tumors were further evaluated by immunohistochemistry and flow cytometry.Results:Downregulation of AURKA in TNBC cells increased immune response by activating CD8^(+)T cell proliferation and activity.Nuclear rather than cytoplasmic AURKA-derived programmed death-ligand 1(PD-L1)expression was independent of its kinase activity.Mechanistic investigations showed that nuclear AURKA increased PD-L1 expression via an MYC-dependent pathway.PD-L1 overexpression mostly reversed AURKA silencing-induced expression of immune effector molecules,including interleukin-(IL-2),interferon-γ(IFN-γ),and perforin.Moreover,AURKA expression was negatively correlated with the enrichment and activity of tumor-infiltrating CD8^(+)T cells in 4T1 engrafted BALB/c mouse model.Conclusions:Nuclear AURKA elevated PD-L1 expression via an MYCdependent pathway and contributed to immune evasion in TNBC.Therapies targeting nuclear AURKA may restore immune responses against tumors. | Shulan Sun Wei Zhou Xiaoxi Li Fei Peng Min Yan Yajing Zhan Fan An Xiaoyan Li Yunyong Liu Quentin Liu Haozhe Piao | 2021 | Cancer Communications2021,41,9: | 2 |
| 3 | A color image information hiding algorithm based on grey prediction and polynomial fitting theory显示文摘 | Lan Yajing Fan Yangyu Liu Weihua | 2008 | IEEE Visual Information Engineering2008,8,: | 1 |
| 4 | RESEARCH ON SEGMENTATION OF WEED IMAGES BASED ON COMPUTER VISION显示文摘In this letter, a segment algorithm based on color feature of images is proposed. The al- gorithm separates the weed area from soil background according to the color eigenvalue, which is obtained by analyzing the color difference between the weeds and background in three color spaces RGB, rgb and HSI. The results of the experiment show that it can get notable effect in segmentation according to the color feature, and the possibility of successful segmentation is 87%-93%. This method can also be widely used in other fields which are complicated in the background of the image and facilely influenced in illumination, such as weed identification, tree species discrimination, fruit picking and so on. | Liu Yajing Yang Fan Yang Ruixia Jia Kejin Zhang Hongtao | 2007 | Journal of Electronics(China)2007,24,2: | 0 |
| 5 | Impact of genetic patterns on sorafenib efficacy in patients with FLT3-ITD acute myeloid leukemia undergoing allogeneic hematopoietic stem cell transplantation: a multi-center, cohort study显示文摘Sorafenib therapy improves overall survival(OS)in patients with FLT3 internal tandem duplication(ITD)acute myeloid leukemia(AML)undergoing allogeneic hematopoietic stem cell transplantation.We explored the efficacy of sorafenib therapy in this population with different concomitant genetic patterns.In this multi-center,cohort study,we enrolled patients with FLT3-ITD AML undergoing allogenic hematopoietic cell transplantation.Patients with sorafenib maintenance post-transplantation for at least four weeks were allocated to the sorafenib group,and otherwise to the control group. | Ruoyang Shao Yu Zhang Jinping He Fen Huang Zhiping Fan Kaibo Yang Yajing Xu Na Xu Yi Luo Lan Deng Xi Zhang Jia Chen Mingzhe Han Xudong Li Sijian Yu Hui Liu Xinquan Liang Xiaodan Luo Pengcheng Shi Zhixiang Wang Ling Jiang Xuan Zhou Ren Lin Yan Chen Sanfang Tu Jing Sun Yu Wang Qifa Liu Li Xuan | 2023 | Signal Transduction and Targeted Therapy2023,8,10: | 0 |
| 6 | Cassiae Semen improves non-alcoholic fatty liver disease through autophagy-related pathway显示文摘Objective:Cassiae Semen(CS,Juemingzi in Chinese)has been used for thousands of years in ancient Chinese history for relieving constipation,improving liver function as well as preventing myopia.Here we aimed to elucidate the anti-steatosis effect and underlying mechanism of CS against non-alcoholic fatty liver disease(NAFLD).Methods:High-performance liquid chromatography(HPLC)was used to identify the major components of CS water extract.Mice were fed with a high-fat and sugar-water(HFSW)diet to induce hepatic steatosis and then treated with CS.The anti-NAFLD effect was determined by measuring serum biomarkers and histopathology staining.Additionally,the effects of CS on cell viability and lipid metabolism in oleic acid and palmitic acid(OAPA)-treated HepG2 cells were measured.The expression of essential genes and proteins involved in lipid metabolism and autophagy signalings were measured to uncover the underlying mechanism.Results:Five compounds,including aurantio-obtusin,rubrofusarin gentiobioside,cassiaside C,emodin and rhein were simultaneously identified in CS extract.CS not only improved the diet-induced hepatic steatosis in vivo,as indicated by decreased number and size of lipid droplets,hepatic and serum triglycerides(TG)levels,but also markedly attenuated the OAPA-induced lipid accumulation in hepatocytes.These lipid-lowering effects induced by CS were largely dependent on the inhibition of fatty acid synthase(FASN)and the activation of autophagy-related signaling,including AMP-activated protein kinase(AMPK),light chain 3-II(LC3-II)/LC3-1 and autophagy-related gene5(ATG5).Conclusion:Our study suggested that CS effectively protected liver steatosis via decreasing FASN-related fatty acid synthesis and activating AMPK-mediated autophagy,which might become a promising therapeutic strategy for relieving NAFLD. | Mingning Ding Fei Zhou Yijie Li Chuanyang Liu Yiqing Gu Jianzhi Wu Guifang Fan Yajing Li Xiaojiaoyang Li | 2023 | Chinese Herbal Medicines2023,15,3: | 0 |
| 7 | Continuity of the robustness of contextuality of empirical models显示文摘Recently, the robustness of contextuality(RoC) of an empirical model was discussed in [Sci. China-Phys. Mech. Astron. 59,640303(2016)], many important properties of the RoC have been proved except for its boundedness and continuity. The aim of this paper is to find an upper bound for the RoC over all of empirical models and prove that the RoC is a continuous function on the set of all empirical models. Lastly, a relationship between the RoC and the extent of violating the noncontextual inequalities is established for an n-cycle contextual box. This relationship implies that the RoC can be used to quantify the contextuality of n-cycle boxes. | HuiXian Meng HuaiXin Cao WenHua Wang Liang Chen Yajing Fan | 2016 | Science China(Physics,Mechanics & Astronomy)2016,59,10: | 0 |
| 8 | Haploidentical transplantation has a superior graft-versus-leukemia effect than HLA-matched sibling transplantation for Ph- high-risk B-cell acute lymphoblastic leukemia显示文摘Background: Compared with human leukocyte antigen (HLA)-matched sibling donor (MSD) transplantation, it remains unclear whether haploidentical donor (HID) transplantation has a superior graft-versus-leukemia (GVL) effect for Philadelphia-negative (Ph-) high-risk B-cell acute lymphoblastic leukemia (B-ALL). This study aimed to compare the GVL effect between HID and MSD transplantation for Ph- high-risk B-ALL.Methods: This study population came from two prospective multicenter trials (NCT01883180, NCT02673008). Immunosuppressant withdrawal and prophylactic or pre-emptive donor lymphocyte infusion (DLI) were administered in patients without active graft-versus-host disease (GVHD) to prevent relapse. All patients with measurable residual disease (MRD) positivity posttransplantation (post-MRD+) or non-remission (NR) pre-transplantation received prophylactic/pre-emptive interventions. The primary endpoint was the incidence of post-MRD+.Results: A total of 335 patients with Ph- high-risk B-ALL were enrolled, including 145 and 190, respectively, in the HID and MSD groups. The 3-year cumulative incidence of post-MRD+ was 27.2% (95% confidence interval [CI]: 20.2%-34.7%) and 42.6% (35.5%-49.6%) in the HID and MSD groups(P = 0.003), respectively. A total of 156 patients received DLI, including 60 (41.4%) and 96 (50.5%), respectively, in the HID and MSD groups (P= 0.096). The 3-year cumulative incidence of relapse was 18.6% (95% CI: 12.7%-25.4%) and 25.9% (19.9%-32.3%;P = 0.116) in the two groups, respectively. The 3-year overall survival (OS) was 67.4% (95% CI: 59.1%-74.4%) and 61.6% (54.2%-68.1%;P = 0.382), leukemia-free survival (LFS) was 63.4% (95% CI: 55.0%-70.7%) and 58.2% (50.8%-64.9%;P= 0.429), and GVHD-free/relapse-free survival (GRFS) was 51.7% (95% CI: 43.3%-59.5%) and 37.8% (30.9%-44.6%;P= 0.041), respectively, in the HID and MSD groups.Conclusion: HID transplantation has a lower incidence of post-MRD+ than MSD transplantation, suggesting that HID transplantation might have a superior GVL effect than MSD transplantation for Ph- high-risk B-ALL patients.Trial registration: ClinicalTrials.gov: NCT01883180, NCT02673008. | Fan Menglin Wang Yu Lin Ren Lin Tong Huang Fen Fan Zhiping Xu Yajing Yang Ting Xu Na Shi Pengcheng Nie Danian Lin Dongjun Jiang Zujun Wang Shunqing Sun Jing Huang Xiaojun Liu Qifa Xuan Li | 2022 | Chinese Medical Journal2022,,8: | 0 |
| 9 | Research on the Current Situation of the capital structure of SMEs显示文摘 | Yajing Fan Xilin Liu | 2014 | Journal of Zhouyi Research2014,,6: | 0 |
| 10 | Research on the Current Situation of the capital structure of SMEs显示文摘 | Yajing Fan Xilin Liu | 2015 | International English Education Research2015,,3: | 0 |
| 11 | Low-PMEPR rotatable pilot sequences for MIMO-OFDM systems显示文摘Dear editor,The multiple-input multiple-output orthogonal frequency division multiplexing(MIMO-OFDM) is the core of many advanced Wi-Fi standards, such as Wi-Fi 4, 5, and 6, to increase the throughput. Operating at the 5-GHz band and considering the phase tracking of the very high throughput long training field(VHT-LTF) sequences. | Yajing ZHOU Zhengchun ZHOU Zhi GU Pingzhi FAN | 2022 | Science China(Information Sciences)2022,65,12: | 0 |