
实验动物与比较医学 ›› 2026, Vol. 46 ›› Issue (5): 677-688.DOI: 10.12300/j.issn.1674-5817.2026.094
钟秋明1, 钱丽萍2, 蔡媛媛2, 刘德强1, 林玮1, 俞春英1, 谢金东1, 王训立1, 吴胜2, 陈碧茵3, 黄镇1(
)(
)
收稿日期:2026-05-19
修回日期:2026-09-07
出版日期:2026-10-25
发布日期:2026-10-16
通讯作者:
黄镇(1987—),男,博士,教授,研究方向:实验动物资源开发与利用。E-mail: zhuang@fjtcm.edu.cn。ORCID:0000-0002-8908-0355作者简介:基金资助:
ZHONG Qiuming1, QIAN Liping2, CAI Yuanyuan2, LIU Deqiang1, LIN Wei1, YU Chunying1, XIE Jindong1, WANG Xunli1, WU Sheng2, CHEN Biyin3, HUANG Zhen1(
)(
)
Received:2026-05-19
Revised:2026-09-07
Published:2026-10-25
Online:2026-10-16
Correspondence to:
摘要:
目的 评价性别因素对环磷酰胺(cyclophosphamide,CYP)和紫杉醇(paclitaxel,PTX)诱导性脱发(chemotherapy-induced alopecia,CIA)小鼠模型表型稳定性的影响,并推测雌性小鼠表型异质性的可能机制。 方法 选取28只6~8周龄野生型SPF级C57BL/6J小鼠(雌雄各半),进行背部同步脱毛;脱毛后第9天,将小鼠随机分为野生型雌性CYP组、野生型雄性CYP组、雌性阴性对照组和雄性阴性对照组;其中,CYP组单次腹腔注射120 mg/kg CYP,阴性对照组腹腔注射等体积生理盐水,随后连续观察并拍照记录CYP所致CIA模型的表型变化。选取11只6周龄SPF级雌性C57BL/6J小鼠进行双侧卵巢切除(OVX组),与5只四核心基因型种鼠繁育所得XY(Sry⁻)小鼠按相同方法构建CIA模型。对OVX组、野生型雌性和雄性CYP组的小鼠于给药后第7天采集血清进行甾体激素质谱检测,以评价性腺源雌激素和性染色体背景改变对CYP诱导雌性脱发表型稳定性的影响。取20只6~8周龄SPF级C57BL/6J小鼠(雌雄各半),随机分为PTX低剂量组和PTX高剂量组,分别在同步脱毛后第9天,单次腹腔注射80 mg/kg或120 mg/kg的PTX,进行连续观察拍照,以比较雌性、雄性小鼠表型的组内一致性;再选取6只6~8周龄SPF级C57BL/6J小鼠(雌雄各半)重复PTX低剂量组的构建方法,分别于给药后当日和给药后第4、7、14、21天进行毛囊组织学检测,以观察PTX对毛囊再生的损伤。 结果 CYP诱导的雄性CIA模型小鼠的表型稳定性和可重复性较高;而CYP诱导的雌性CIA模型小鼠在脱发表型上存在明显个体差异,处于动情周期的相关雌激素的组间差异可能是引发该现象的主要原因。OVX+CYP组和XY(Sry⁻)+CYP组小鼠的组间差异消失,提示卵巢来源激素及XY(Sry⁻)性染色体背景可能共同参与了雌性小鼠CYP诱导脱发表型异质性的形成。高剂量PTX组和低剂量PTX组小鼠表现出较为一致的脱发-再生过程,未见明显性别差异。 结论 CYP诱导CIA模型受性别因素影响明显,卵巢切除和性染色体背景改变可提高CYP诱导雌性小鼠模型脱发表型的一致性。PTX诱导的CIA模型在雌性、雄性小鼠中均具有较好的表型一致性和性别适用性。综上,在CIA动物模型的构建、机制研究及防脱发药物评价中,应结合化疗药物类型、研究目的和表型稳定性要求合理选择实验动物性别,并将性别作为模型标准化和结果解释的重要变量。
中图分类号:
钟秋明,钱丽萍,蔡媛媛,等. 环磷酰胺/紫杉醇诱导化疗脱发模型小鼠的性别间差异对比分析[J]. 实验动物与比较医学, 2026, 46(5): 677-688. DOI: 10.12300/j.issn.1674-5817.2026.094.
ZHONG Qiuming,QIAN Liping,CAI Yuanyuan,et al. Comparative Analysis of Sex Differences Between Cyclophosphamide- and Paclitaxel-Induced Mouse Models of Chemotherapy-Induced Alopecia[J]. Laboratory Animal and Comparative Medicine, 2026, 46(5): 677-688. DOI: 10.12300/j.issn.1674-5817.2026.094.
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