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| 1 | KIF18B promotes tumor progression in osteosarcoma by activating β-catenin显示文摘Objective:Osteosarcoma is a common primary highly malignant bone tumor.Kinesin family member 18B(K1F18B)has been identified as a potential oncogene involved in the development and metastasis of several cancer types.While KIF18B overexpression in osteosarcoma tissue is clearly detected,its specific function in the disease process remains to be established.Methods:K IF18B expression was assessed in osteosarcoma tissues and cells.We additionally evaluated the effects of KIF18B on proliferation,migration,and invasion of osteosarcoma cells,both in vitro and in vivo.Results:Our results showed overexpression of KIF18B in osteosarcoma tissues and cells.Knockdown of K IF18B induced G1/S phase arrest and significantly inhibited proliferation,migration,and invasion of osteosarcoma cells,both in vitro and in vivo.K IF18B regulated P-catenin expression at the transcriptional level by controlling nuclear aggregation of ATF2 and at the post-transcriptional level by interacting with the adenomatous polyposis coli(APC)tumor suppressor gene in osteosarcoma cells.Conclusions:KIF18B plays a carcinogenic role in osteosarcoma by regulating expression ofβ-catenin transcriptionally via decreasing nuclear aggregation of ATF2 or post-transcriptionally through interactions with APC.Our collective findings support the potential utility of KIF18B as a novel prognostic biomarker for osteosarcoma. | Tian Gao Ling Yu Zhiwei Fang Jiayong Liu Chujie Bai Shu Li Ruifeng Xue Lu Zhang Zhichao Tan Zhengfu Fan | 2020 | Cancer Biology & Medicine2020，17，2： | 7 |
| 2 | Efficacy of vinorelbine combined with low-dose methotrexate for treatment of inoperable desmoid tumor and prognostic factor analysis显示文摘Objective: To assess the efficacy of conservative chemotherapy for inoperable desmoid tumor(DT) and analyze the prognostic factors.Methods:From November 2008 to April 2016,71 patients of inoperable DT were treated with vinorelbine and low-dose methotrexate in the Department of Bone and Soft Tissue Tumors,Peking University Cancer Hospital&Institute,and enrolled in this retrospective study.The chemotherapy duration is one year.The efficacy of chemotherapy and the prognosis were observed.Results:Of the 71 patients,55% were female.Age of onset varied from 1 to 47 years,and the median age was 14years.Only 11(15.5%)cases suffered primary tumor.The distribution of the site of tumors was:31(43.7%)in the trunk,36(50.7%)in the limbs,and 4(5.6%)in the peritoneal and pelvic cavity.The size of tumor(the maximum diameter)differed from 2 to 37 cm with a mean of 9.3 cm.The median follow-up duration was 28(range,6–87)months.Common side effects included:nausea and vomiting,liver injury,bone marrow suppression and oral ulcers.When the chemotherapy finished,1(1.4%)case achieved complete response,24(33.8%)achieved partial response,37(52.1%)achieved stable disease and 9(12.7%)had progressive disease.The overall response rate was 87.3%.The progression-free survival(PFS)of the participants were from 6 to 87 months,and the 2-,3-and 5-year PFS was 79.9%,68.4% and 36.3%,respectively.No significant difference was identified in PFS in subgroups of gender,age of onset,age of chemotherapy,tumor site and tumor size.Conclusions:For recurrent,inoperable and progressive DT,enough course of chemotherapy with vinorelbine combined with low-dose methotrexate was an optional choice for local control. | Shu Li Zhengfu Fan Zhiwei Fang Jiayong Liu Chujie Bai Ruifeng Xue Lu Zhang Tian Gao | 2017 | Chinese Journal of Cancer Research2017，29，5： | 6 |
| 3 | Elucidating the electro-catalytic oxidation of hydrazine over carbon nanotube-based transition metal single atom catalysts显示文摘Elucidating the reaction mechanism of hydrazine oxidation reaction(HzOR)over carbon-based catalysts is highly propitious for the rational design of novel electrocatalysts for HzOR.In present work,isolated first-row transition metal atoms have been coordinated with N atoms on the graphite layers of carbon nanotubes via a M-N_(4)-C configuration(MSA/CNT,M=Fe,Co and Ni).The HzOR over the three single atom catalysts follows a predominant 4-electron reaction pathway to emit N_(2) and a negligible 1-electron pathway to emit trace of NH3,while their electrocatalytic activity for HzOR is dominated by the absorption energy of N2H4 on them.Furthermore,FeSA/CNT reverses the passivation effect on Fe/C and shows superior performance than CoSA/CNT and NiSA/CNT with a recorded high mass activity for HzOR due to the higher electronic charge of Fe over Co and Ni in the M-N_(4)-C configuration and the lowest absorption energy of N_(2)H_(4) on FeSA/CNT among the three MSA/CNT catalysts. | Jin Zhang Yaxin Wang Chujie Yang Sian Chen Zhengjian Li Yi Cheng Haining Wang Yan Xiang Shanfu Lu Shuangyin Wang | 2021 | Nano Research2021，14，12： | 1 |
| 4 | Heterologous biosynthesis of medicarpin using engineered Saccharomyces cerevisiae显示文摘Medicarpin is an important bioactive compound with multiple medicinal activities,including anti-tumor,anti-osteoporosis,and anti-bacterial effects.Medicarpin is associated with pterocarpans derived from medicinal plants,such as Sophora japonica,Glycyrrhiza uralensis Fisch.,and Glycyrrhiza glabra L.However,these medicinal plants contain only low amounts of medicarpin.Moreover,the planting area for medicarpin-producing plants is limited;consequently,the current medicarpin supply cannot meet the high demands of medicinal markets.In this study,eight key genes involved in medicarpin biosynthesis were identified using comparative transcriptome and bioinformatic analyses.In vitro and in vivo enzymatic reaction confirmed the catalytic functions of candidate enzymes responsible for the biosynthesis of medicarpin and medicarpin intermediates.Further engineering of these genes in Saccharomyces cerevisiae achieved the heterologous biosynthesis of medicarpin using liquiritigenin as a substrate,with a final medicarpin yield of 0.82±0.18 mg/L.By increasing the gene copy numbers of vestitone reductase(VR)and pterocarpan synthase(PTS),the final medicarpin yield was increased to 2.05±0.72 mg/L.This study provides a solid foundation for the economic and sustainable production of medicarpin through a synthetic biology strategy. | Chujie Lu Rui Du Hao Fu Jizhao Zhang Ming Zhao Yongjun Wei Wei Lin | 2023 | Synthetic and Systems Biotechnology2023，8，4： | 0 |
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