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Luo Xiao-Jing,He Ming-Ming,Liu Jia,Zheng Jia-Bo,Wu Qi-Nian,Chen Yan-Xing,Meng Qi,Luo Kong-Jia,Chen Dong-Liang,Xu Rui-Hua,Zeng Zhao-Lei,Liu Ze-Xian,Luo Hui-Yan 생화학분자생물학회 2022 Experimental and molecular medicine Vol.54 No.-
Esophageal squamous cell carcinoma (ESCC) is one of the most life- and health-threatening malignant diseases worldwide, especially in China. Long noncoding RNAs (lncRNAs) have emerged as important regulators of tumorigenesis and tumor progression. However, the roles and mechanisms of lncRNAs in ESCC require further exploration. Here, in combination with a small interfering RNA (siRNA) library targeting specific lncRNAs, we performed MTS and Transwell assays to screen functional lncRNAs that were overexpressed in ESCC. TMPO-AS1 expression was significantly upregulated in ESCC tumor samples, with higher TMPOAS1 expression positively correlated with shorter overall survival times. In vitro and in vivo functional experiments revealed that TMPO-AS1 promotes the proliferation and metastasis of ESCC cells. Mechanistically, TMPO-AS1 bound to fused in sarcoma (FUS) and recruited p300 to the TMPO promoter, forming biomolecular condensates in situ to activate TMPO transcription in cis by increasing the acetylation of histone H3 lysine 27 (H3K27ac). Targeting TMPO-AS1 led to impaired ESCC tumor growth in a patient-derived xenograft (PDX) model. We found that TMPO-AS1 is required for cell proliferation and metastasis in ESCC by promoting the expression of TMPO, and both TMPO-AS1 and TMPO might be potential biomarkers and therapeutic targets in ESCC.
Xiao-Li Luo,Gen-Nian Qian,Hui Xiao,Chun-Lei Zhao,Xiao-Dong Zhou 대한영상의학회 2012 Korean Journal of Radiology Vol.13 No.3
Various anatomic anomalies have been considered the causes of nutcracker syndrome (NCS). Posterior NCS refers to the condition, in which vascular narrowing was secondary to the compression of the retroaortic left renal vein while it is crossing between the aorta and the vertebral column. Here, we report an unusual case of posterior NCS associated with a complicated malformation of the interrupted left inferior vena cava with azygos continuation and retroaortic right renal vein, diagnosed by both color Doppler ultrasonography and CT angiography.
Xiao-Bo Liu,Qiu-Ya Gu,Xiao-Bin Yu,Wei Luo 한국미생물학회 2012 The journal of microbiology Vol.50 No.6
As a promising alternative biofuel, biobutanol can be produced through acetone/butanol/ethanol (ABE) fermentation. Currently, ABE fermentation is still a small-scale industry due to its low production and high input cost. Moreover, butanol toxicity to the Clostridium fermentation host limits the accumulation of butanol in the fermentation broth. The wild-type Clostridium acetobutylicum D64 can only produce about 13 g butanol/L and tolerates less than 2% (v/v) butanol. To improve the tolerance of C. acetobutylicum D64 for enhancing the production of butanol, nitrogen ion beam implantation was employed and finally five mutants with enhanced butanol tolerance were obtained. Among these, the most butanol tolerant mutant C. acetobutylicum NT642 can tolerate above 3% (v/v) butanol while the wide-type strain can only withstand 2% (v/v). In batch fermentation, the production of butanol and ABE yield of C. acetobutylicum NT642 was 15.4 g/L and 22.3 g/L, respectively, which were both higher than those of its parental strain and the other mutants using corn or cassava as substrate. Enhancing butanol tolerance is a great precondition for obtaining a hyperyield producer. Nitrogen ion beam implantation could be a promising biotechnology to improve butanol tolerance and production of the host strain C. acetobutylicum.
Luo, Li-Ping,Han, Bin,Yu, Xiao-Ping,Chen, Xiang-Yan,Zhou, Jie,Chen, Wei,Zhu, Yan-Feng,Peng, Xiao-Li,Zou, Qiang,Li, Sui-Yan Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.15
Background: Increasing evidence from animal, epidemiological and clinical investigations suggest that dietary anthocyanins have potential to prevent chronic diseases, including cancers. It is also noteworthy that human epidermal growth factor receptor 2 (ErbB2) protein overexpression or ErbB2 gene amplification has been included as an indicator for metastasis and higher risk of recurrence for breast cancer. Materials and Methods: The present experiments investigated the anti-metastasis effects of black rice anthocyanins (BRACs) on ErbB2 positive breast cancer cells in vivo and in vitro. Results: Oral administration of BRACs (150 mg/kg/day) reduced transplanted tumor growth, inhibited pulmonary metastasis, and decreased lung tumor nodules in BALB/c nude mice bearing ErbB2 positive breast cancer cell MDA-MB-453 xenografts. The capacity for migration, adhesion, motility and invasion was also inhibited by BRACs in MDA-MB-453 cells in a concentration dependent manner, accompanied by decreased activity of a transfer promoting factor, urokinase-type plasminogen activator (u-PA). Conclusions: Together, our results indicated that BRACs possess anti-metastasis potential against ErbB2 positive human breast cancer cells in vivo and in vitro through inhibition of metastasis promoting molecules.
Xiao-yuan Luo,Xiaolei Li,Shaobao Li,Zhongping Jiang,Xin-Ping Guan 제어·로봇·시스템학회 2017 International Journal of Control, Automation, and Vol.15 No.1
This paper investigates the leader-follower flocking problem of multi-agent systems. The leader withinput noise is estimated by a proposed continuous-time information weighted Kalman consensus filter (IWKCF)for agents. A novel distributed flocking algorithm based on the IWKCF is further presented to make agents achieveflocking to the leader. It is shown that the proposed flocking algorithm based on the continuous-time IWKCFis asymptotically stable. Applying the topology optimization scheme, the communication complexity of systemtopologies of multi-agent systems is effectively reduced. Finally, simulations are provided to demonstrate theeffectiveness of the proposed results.
Xiao-Lin Luo,Ya-Shao Chen,Min-Juan Wang,De-Suo Yang,Jie Yang 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.32 No.-
Cu2O micro-crystals with different morphologies (including three branching structures) weresynthesized through hydrothermal method by using sodium tartrate as chelating reagent. Branchinggrowth patterns of Cu2O microcrystals have a strong dependence on the amount of sodium tartrate. These different Cu2O microcrystals were used as catalysts to promote the thermal decomposition ofammonium perchlorate (AP). The thermal decomposition of AP in the presence or absence of Cu2Omicro-crystals was investigated non-isothermally through thermogravimetry and differential scanningcalorimetry (DSC). The data obtained from DSC were applied for the calculation and comparison of thekinetic parameters of AP decomposition process through a model-free approach.