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不同肠道微环境下奈妥匹坦帕洛诺司琼胶囊对大鼠白蛋白紫杉
醇药动学的影响
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秦源蔓 ,褚文昊 ,许佳祺 ,李雨桐 ,梁 博 ,张学良 ,刘 剑 (1.河北医科大学第二医院药学部,石家庄
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050073;2.河北医科大学药学院,石家庄 050011)
中图分类号 R979.1;R969.2 文献标志码 A 文章编号 1001-0408(2025)16-1993-07
DOI 10.6039/j.issn.1001-0408.2025.16.07
摘 要 目的 探究不同肠道微环境下奈妥匹坦帕洛诺司琼胶囊(NEPA)对大鼠注射用紫杉醇(白蛋白结合型)(简称“白蛋白紫杉
醇”)药动学的影响。方法 将雄性SD大鼠分为正常组和模型组,每组16只。模型组大鼠灌胃万古霉素溶液构建肠道紊乱大鼠模
型。造模后次日,分析其肠道菌群多样性,并检测其小肠及肝组织中细胞色素P450 3A1(CYP3A1)、CYP2C11 mRNA及肝组织中
上述蛋白的表达。将雄性SD大鼠按前述方法分组,每组16只;将正常组分为TP化疗组(TP-1组)、TP化疗+NEPA组(TP+NEPA-1
组),将模型组大鼠随机分为TP化疗组(TP-2组)、TP化疗+NEPA组(TP+NEPA-2组),每组8只。TP+NEPA-1组和TP+NEPA-2组
大鼠分别单次灌胃NEPA混悬液25.8 mg/kg(以奈妥匹坦计);1 h后,4组大鼠均单次尾静脉注射白蛋白紫杉醇和顺铂药液。于末
次给药后的不同时间点采集血样,以阿奇霉素为内标,采用液相色谱-串联质谱法检测血浆中紫杉醇的质量浓度,并采用DAS 2.0
计算其主要药动学参数并进行组间比较。结果 与正常组大鼠相比,模型组大鼠的Chao1、Shannon指数均显著降低(P<0.05),菌
群组成及相对丰度变化明显;其肝组织中 CYP3A1 mRNA、小肠及肝组织中 CYP2C11 mRNA 的表达均显著下调(P<0.05)。与
TP-1组比较,TP-2组大鼠体内紫杉醇的药时曲线下面积(AUC0-t、AUC0-∞)、平均滞留时间(MRT0-t ),TP+NEPA-1组及TP+NEPA-2
组大鼠体内紫杉醇的达峰浓度(cmax )、AUC0-t、AUC0-∞均显著升高或延长;TP-2组大鼠体内紫杉醇的清除率(CL),TP+NEPA-1组及
TP+NEPA-2组大鼠体内紫杉醇的表观分布容积(Vd )、CL均显著降低或缩短(P<0.05)。与TP-2组比较,TP+NEPA-2组大鼠体内
紫杉醇的cmax显著升高,Vd、MRT0-t均显著降低或缩短(P<0.05)。结论 肠道菌群紊乱会影响CYP3A1、CYP2C11 mRNA的表达,
导致紫杉醇在大鼠体内的清除减慢,暴露量增加;肠道菌群正常时,联用NEPA可增加紫杉醇在大鼠体内的暴露量;肠道菌群紊乱
时,联用NEPA对紫杉醇体内暴露量的影响有限。
关键词 奈妥匹坦帕洛诺司琼;白蛋白紫杉醇;肠道菌群;药动学;药物相互作用
Effects of Netupitant and palonosetron hydrochloride capsules on the pharmacokinetics of albumin-bound
paclitaxel in rats under different intestinal microenvironments
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QIN Yuanman ,CHU Wenhao ,XU Jiaqi ,LI Yutong ,LIANG Bo ,ZHANG Xueliang ,LIU Jian(1. Dept. of
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Pharmacy, the Second Hospital of Hebei Medical University, Shijiazhuang 050073, China;2. School of
Pharmacy, Hebei Medical University, Shijiazhuang 050011, China)
ABSTRACT OBJECTIVE To investigate the impact of Netupitant and palonosetron hydrochloride capsules (NEPA) on the
pharmacokinetics of Paclitaxel for injection (albumin bound) (i. e. albumin-bound paclitaxel) under different intestinal
microenvironment conditions. METHODS Male SD rats were divided into a normal group and a model group (n=16). Rats in the
model group were intragastrically administered vancomycin solution to establish an intestinal disorder model. The next day after
modeling, intestinal microbiota diversity was analyzed, and the mRNA expressions of cytochrome P450 3A1 (CYP3A1) and
CYP2C11 in small intestine and liver tissues as well as those protein expressions in liver tissue were measured. Male SD rats were
grouped as described above (n=16). The normal group was subdivided into the TP chemotherapy group (TP-1 group) and the TP
chemotherapy+NEPA group (TP+NEPA-1 group); the model group was subdivided into the TP chemotherapy group (TP-2 group)
and the TP chemotherapy+NEPA group (TP+NEPA-2 group) (n=8). Rats in the TP+NEPA-1 and TP+NEPA-2 groups received a
single intragastric dose of NEPA suspension (25.8 mg/kg, calculated by netupitant). One hour later, all four groups received a
single tail vein injection of albumin-bound paclitaxel and
Δ 基金项目 河 北 省 2022 年 度 医 学 科 学 研 究 课 题 计 划(No. cisplatin. Blood samples were collected at different time points
20221145) after the last administration. Using azithromycin as the internal
*第一作者 硕士研究生。研究方向:临床药学、药物体内相互作
standard, plasma paclitaxel concentrations were determined by
用。E-mail:qin030112@163.com
# 通信作者 副主任药师,硕士生导师,硕士。研究方向:药物体内 liquid chromatography-tandem mass spectrometry. The main
相互作用。E-mail:27900021@hebmu.edu.cn pharmacokinetic parameters were calculated using DAS 2.0
中国药房 2025年第36卷第16期 China Pharmacy 2025 Vol. 36 No. 16 · 1993 ·

