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1.山东第一医科大学 药学院,山东 济南 250000
2.济宁医学院 药学院,山东 日照 276826
任 强,博士,副教授,研究方向:糖胺聚糖分析,E-mail:ren2323@163.com
收稿日期:2024-09-13,
修回日期:2024-12-05,
录用日期:2024-12-16,
纸质出版日期:2025-05-15
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张蕾,王思亚,张运涛,任强.柱前衍生/高效液相色谱-荧光检测法测定胰腺癌PANC-1和CFPAC-1细胞荷瘤小鼠中13种硫酸乙酰肝素二糖[J].分析测试学报,2025,44(05):811-821.
ZHANG Lei,WANG Si-ya,ZHANG Yun-tao,REN Qiang.Determination of 13 Heparan Sulfate Disaccharides in PANC-1 and CFPAC-1 Cells Tumor Bearing Mice with Pancreatic Cancer by Precolumn Derivatization/High Performance Liquid Chromatography and Fluorescence Detection[J].Journal of Instrumental Analysis,2025,44(05):811-821.
张蕾,王思亚,张运涛,任强.柱前衍生/高效液相色谱-荧光检测法测定胰腺癌PANC-1和CFPAC-1细胞荷瘤小鼠中13种硫酸乙酰肝素二糖[J].分析测试学报,2025,44(05):811-821. DOI: 10.12452/j.fxcsxb.240913396.
ZHANG Lei,WANG Si-ya,ZHANG Yun-tao,REN Qiang.Determination of 13 Heparan Sulfate Disaccharides in PANC-1 and CFPAC-1 Cells Tumor Bearing Mice with Pancreatic Cancer by Precolumn Derivatization/High Performance Liquid Chromatography and Fluorescence Detection[J].Journal of Instrumental Analysis,2025,44(05):811-821. DOI: 10.12452/j.fxcsxb.240913396.
建立了胰腺癌PANC-1、CFPAC-1细胞荷瘤小鼠中13种硫酸乙酰肝素(HS)二糖的柱前衍生/高效液相色谱-荧光检测方法。胰腺癌肿瘤样本经脱脂、蛋白酶酶解等前处理得到HS二糖后,与2-氨基吖啶酮(AMAC)衍生化试剂反应。通过Thermo Scientific HYRERSIL ODS-2C
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色谱柱分离,以甲醇-60 mmol/L乙酸铵(pH 5.6)为流动相梯度洗脱,在激发波长425 nm、发射波长520 nm下检测。结果表明,13种HS二糖在各自质量浓度范围内线性关系良好(
r
2
≥0.999 0),检出限(LOD)为0.012~0.313 µg/mL,定量下限(LOQ)为0.117~1.250 µg/mL,精密度的相对标准偏差(RSD)为0.040%~0.63%,日内稳定性RSD为0.34%~3.6%,日间稳定性RSD为1.8%~6.4%,加标回收率为80.7%~109%,RSD为0.50%~17%。两种胰腺癌细胞荷瘤小鼠肿瘤组织中均检测出9种HS二糖,其中ΔUA-GlcN(ⅣH)占比最高,分别为28 627.558 nmol/g和66 938.786 nmol/g,ΔUA-GlcNAc(ⅣA)和ΔUA-GlcN,6S(ⅡH)占比次之。分子对接结果表明ⅣH与肝素结合性表皮生长因子(HB-EGF)结合力最强,ⅡH与成纤维细胞生长因子-2(FGF-2)结合力最强。HS硫酸酯化序列的特点以及与HB-EGF和FGF-2之间的相互作用,调控胰腺癌的发生、发展过程。研究结果可为胰腺癌的早期治疗和诊断提供帮助。
A precolumn derivatization/high performance liquid chromatography-fluorescence detection(HPLC-FLD) method for the determination of 13 heparan sulfate(HS) disaccharides in PANC-1 and CFPAC-1 cells tumor bearing mice with pancreatic cancer was established. HS disaccharides were obtained from pancreatic cancer samples by defatting and protease enzymatic hydrolysis,and then reacted with 2-aminoacridone(AMAC) derived reagents. The separation was performed by Thermo Scien
tific HYRERSIL ODS-2 C
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column,and the mobile phase gradient elution was performed with methanol-60 mmol/L ammonium acetate(pH 5.6) at excitation wavelength of 425 nm and emission wavelength of 520 nm. The results showed that the 13 HS disaccharides had a good linear relationship within the corresponding mass concentration ranges(
r
2
≥0.999 0),with detection limits(LODs) of 0.012-0.313 µg/mL and the quantitation limits(LOQs) of 0.117-1.250 µg/mL. The relative standard deviations(RSDs) of precision ranged from 0.040% to 0.63%,the RSD of intra-day stability ranged from 0.34% to 3.6%,the RSD of inter-day stability ranged from 1.8% to 6.4%. The recoveries ranged from 80.7%-109%,and RSD was 0.50%-17%. 9 HS disaccharides were detected in the tumor tissue of the two types of pancreatic cancer cells,among which ΔUA-GlcN(ⅣH) accounted for the highest proportion,with concentrations of 28 627.558 nmol/g and 66 938.786 nmol/g,respectively. ΔUA-GlcNAc(ⅣA) and ΔUA-GlcN,6S(ⅡH) took the second place,and the results of molecular docking showed that ⅣH had the strongest binding force with heparin-binding epidermal growth factor(HB-EGF) and ⅡH had the strongest binding force with fibroblast growth factor-2(FGF-2). The characteristics of HS sulfated sequence and its interaction with HB-EGF and FGF-2 regulate the occurrence and development of pancreatic cancer. The findings of this study may provide valuable insights for the early treatment and diagnosis of pancreatic cancer.
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