LIV-1(solute carrier family 39 member 6,SLC39A6/ZIP6)是锌转运蛋白ZIP家族中LZT(LIV-1 subfamily of ZIP zinc Transporters)亚家族成员之一,定位于细胞膜,富含组氨酸,并包含有多个跨膜结构域,主要分布于受激素调控的组织中。LIV-1...LIV-1(solute carrier family 39 member 6,SLC39A6/ZIP6)是锌转运蛋白ZIP家族中LZT(LIV-1 subfamily of ZIP zinc Transporters)亚家族成员之一,定位于细胞膜,富含组氨酸,并包含有多个跨膜结构域,主要分布于受激素调控的组织中。LIV-1的主要功能是将Zn2+转运至细胞质基质中从而提高基质内Zn2+的含量,此外研究表明,LIV-1还参与胚胎发育以及肿瘤迁移中所涉及的上皮-间充质细胞转化过程(epithelial-to-mesenchymal transition,EMT),提示除与锌离子运输外,它可能与肿瘤等多种疾病的发生发展也有着密切地联系。本文将对锌转运蛋白LIV-1的相关研究进展进行综述。展开更多
As an effective therapeutic modality, high-intensity focused ultrasound（HIFU） can destroy tumour tissues by thermocoagulation with less metastasis, but it is still limited by inaccurate non-invasive temperature moni...As an effective therapeutic modality, high-intensity focused ultrasound（HIFU） can destroy tumour tissues by thermocoagulation with less metastasis, but it is still limited by inaccurate non-invasive temperature monitoring and efficacy evaluation. A model of electrical impedance measurement during HIFU therapy was established using the temperatureimpedance relationship. Based on the simulations of acoustic pressure, temperature, and electrical conductivity, the impedance of the phantom was calculated and experimentally demonstrated for different values of acoustic power values and treatment time. We proved that the relative impedance variation（RIV） increases linearly with the increasing treatment time at a fixed acoustic power, and the relative impedance variation rate shows a linear relationship with the acoustic power.The RIV and treatment time required for HIFU treatment efficacy are inversely proportional to the acoustic power and the square of acoustic power, respectively. The favourable results suggest that RIV can be used as an efficient indicator for noninvasive temperature monitoring and efficacy evaluation and may provide new strategy for accurate dose control of HIFU therapy.展开更多
文摘LIV-1(solute carrier family 39 member 6,SLC39A6/ZIP6)是锌转运蛋白ZIP家族中LZT(LIV-1 subfamily of ZIP zinc Transporters)亚家族成员之一,定位于细胞膜,富含组氨酸,并包含有多个跨膜结构域,主要分布于受激素调控的组织中。LIV-1的主要功能是将Zn2+转运至细胞质基质中从而提高基质内Zn2+的含量,此外研究表明,LIV-1还参与胚胎发育以及肿瘤迁移中所涉及的上皮-间充质细胞转化过程(epithelial-to-mesenchymal transition,EMT),提示除与锌离子运输外,它可能与肿瘤等多种疾病的发生发展也有着密切地联系。本文将对锌转运蛋白LIV-1的相关研究进展进行综述。
基金Project supported by the National Natural Science Foundation of China(Grant Nos.11604156 and 11474166)the Science and Technology Cooperation Projects of China and Romania(Grant No.42-23)+2 种基金the Natural Science Foundation of Jiangsu Province,China(Grant No.BK20161013)the Postdoctoral Science Foundation of China(Grant No.2016M591874)the Priority Academic Program Development of Jiangsu Higher Education Institutions,China
文摘As an effective therapeutic modality, high-intensity focused ultrasound（HIFU） can destroy tumour tissues by thermocoagulation with less metastasis, but it is still limited by inaccurate non-invasive temperature monitoring and efficacy evaluation. A model of electrical impedance measurement during HIFU therapy was established using the temperatureimpedance relationship. Based on the simulations of acoustic pressure, temperature, and electrical conductivity, the impedance of the phantom was calculated and experimentally demonstrated for different values of acoustic power values and treatment time. We proved that the relative impedance variation（RIV） increases linearly with the increasing treatment time at a fixed acoustic power, and the relative impedance variation rate shows a linear relationship with the acoustic power.The RIV and treatment time required for HIFU treatment efficacy are inversely proportional to the acoustic power and the square of acoustic power, respectively. The favourable results suggest that RIV can be used as an efficient indicator for noninvasive temperature monitoring and efficacy evaluation and may provide new strategy for accurate dose control of HIFU therapy.
