异常凝血酶原即维生素K缺乏或拮抗剂-Ⅱ诱导的蛋白质(protein induced by vitamin K absence or antagonist-Ⅱ,PIVKA-Ⅱ),目前主要用于肝细胞癌的补充诊断。但越来越多的研究发现,PIVKA-Ⅱ在联合其他血清学指标进行高特异度、高敏感度...异常凝血酶原即维生素K缺乏或拮抗剂-Ⅱ诱导的蛋白质(protein induced by vitamin K absence or antagonist-Ⅱ,PIVKA-Ⅱ),目前主要用于肝细胞癌的补充诊断。但越来越多的研究发现,PIVKA-Ⅱ在联合其他血清学指标进行高特异度、高敏感度的诊断、治疗前的疗效评估及治疗后的预后评价等方面均具有一定价值,其水平的变化可以为肝移植术、肝切除术时机的选择及微血管侵犯提供新的依据。本文对PIVKA-Ⅱ在肝细胞癌诊疗中应用的研究进展进行综述。展开更多
In this study,we synthesized an organic material with near-infrared emission capabilities:4-(2-(4-(9-(4-(diphenylamino)phenyl)naphtho[2,3-c][1,2,5]thiadiazol-4-yl)phenyl)-1H-phenol-1-ylidene)malononitrile(TPA).Further...In this study,we synthesized an organic material with near-infrared emission capabilities:4-(2-(4-(9-(4-(diphenylamino)phenyl)naphtho[2,3-c][1,2,5]thiadiazol-4-yl)phenyl)-1H-phenol-1-ylidene)malononitrile(TPA).Furthermore,TPA-PEG2000 fluorescent nanoparticles were prepared via coating the shells with PEG2000.TPA-PEG2000 exhibited strong near-infrared emission near 700 nm,with a photoluminescence quantum yield of 15.09%,indicating a high emission efficiency.Molecular biology experiments have confirmed its low toxicity and excellent biocompatibility.Increased cholesterol and phospholipid levels in liver cancer cell membranes with low sensitivity or high drug resistance lead to increased rigidity,reduced membrane fluidity,reduced endocytic efficiency,and reduced uptake.Therefore,the uptake of TPA-PEG2000 nanoparticles into cells and the near-infrared fluorescence intensity can be used to evaluate the sensitivity of systemic liver cancer treatment in a simple and efficient manner.展开更多
文摘异常凝血酶原即维生素K缺乏或拮抗剂-Ⅱ诱导的蛋白质(protein induced by vitamin K absence or antagonist-Ⅱ,PIVKA-Ⅱ),目前主要用于肝细胞癌的补充诊断。但越来越多的研究发现,PIVKA-Ⅱ在联合其他血清学指标进行高特异度、高敏感度的诊断、治疗前的疗效评估及治疗后的预后评价等方面均具有一定价值,其水平的变化可以为肝移植术、肝切除术时机的选择及微血管侵犯提供新的依据。本文对PIVKA-Ⅱ在肝细胞癌诊疗中应用的研究进展进行综述。
基金the National Natural Science Foundation of China(Nos.82002809,81902484,52103209)the China Postdoctoral Science Foundation(No.2020M670864)+3 种基金the Medical and Health Talents Project of Jilin Province,China(No.2020SCZT097)the Youth Support Project of Jilin Association for Science and Technology,China(No.202028)the Jilin Province Science and Technology Development Plan,China(No.20210204028YY)the Natural Science Foundation of Jilin Province,China(No.YDZJ202301ZYTS080).
文摘In this study,we synthesized an organic material with near-infrared emission capabilities:4-(2-(4-(9-(4-(diphenylamino)phenyl)naphtho[2,3-c][1,2,5]thiadiazol-4-yl)phenyl)-1H-phenol-1-ylidene)malononitrile(TPA).Furthermore,TPA-PEG2000 fluorescent nanoparticles were prepared via coating the shells with PEG2000.TPA-PEG2000 exhibited strong near-infrared emission near 700 nm,with a photoluminescence quantum yield of 15.09%,indicating a high emission efficiency.Molecular biology experiments have confirmed its low toxicity and excellent biocompatibility.Increased cholesterol and phospholipid levels in liver cancer cell membranes with low sensitivity or high drug resistance lead to increased rigidity,reduced membrane fluidity,reduced endocytic efficiency,and reduced uptake.Therefore,the uptake of TPA-PEG2000 nanoparticles into cells and the near-infrared fluorescence intensity can be used to evaluate the sensitivity of systemic liver cancer treatment in a simple and efficient manner.
