实验动物与比较医学 ›› 2024, Vol. 44 ›› Issue (2): 127-138.DOI: 10.12300/j.issn.1674-5817.2023.150
• 人类疾病动物模型 • 下一篇
钟瑞华1, 李国停1, 杨文捷1, 郭湘洁1, 周洁芸1, 胡颖怡1, 倪其承1,2, 杨野1,2, 张敏3, 朱焰1()(
)
收稿日期:
2023-11-03
修回日期:
2024-02-01
出版日期:
2024-05-09
发布日期:
2024-04-25
通讯作者:
朱 焰(1970—),女,博士,研究员,从事生殖药理学研究。E-mail: zhuyan@sippr.org。ORCID: 0000-0001-5136-7601作者简介:
钟瑞华(1988—),女,硕士,助理研究员,从事生殖药理学研究。E-mail: zrh8804@126.com
Ruihua ZHONG1, Guoting LI1, Wenjie YANG1, Xiangjie GUO1, Jieyun ZHOU1, Yingyi HU1, Qicheng NI1,2, Ye YANG1,2, Min ZHANG3, Yan ZHU1()(
)
Received:
2023-11-03
Revised:
2024-02-01
Published:
2024-04-25
Online:
2024-05-09
Contact:
ZHU Yan (ORCID:0000-0001-5136-7601), E-mail: zhuyan@sippr.org摘要:
目的 用同种异体移植的方法构建大鼠子宫内膜异位症模型,并评价促性腺激素释放激素(gonadotropin-releasing hormone,GnRH)激动剂GenSci006对实验大鼠子宫内膜异位症模型的影响。 方法 取供体SPF级雌性SD大鼠的子宫内膜移植于受体雌性大鼠的腹腔壁上,构建同种异体的子宫内膜异位症模型。3周后,测量异位内膜的长、宽、高,计算给药前异位内膜的体积V1。将进行假手术操作的大鼠设为假手术组,将造模大鼠随机分为模型组、曲普瑞林组(0.25 mg/kg)、GenSci006-1组(0.125 mg/kg)和GenSci006-2组(0.25 mg/kg)共4组,每组大鼠16只。各组大鼠单次给予相应的药物,假手术组和模型组给予同等体积的溶剂。3周后,再次测量异位内膜,计算给药后异位内膜的体积V2和抑制率;通过比较脏器系数及病理切片的变化,判断GenSci006 对大鼠子宫和卵巢组织的影响;ELISA法测定血清中雌二醇(estradiol,E2)、孕酮(progesterone,P4)、卵泡刺激素(follicle stimulating hormone,FSH)和黄体生成素(luteinizing hormone,LH)水平的变化;实时荧光定量PCR法测定下丘脑和垂体中GnRH受体(GnRH receptor,GnRHR)mRNA的表达水平。蛋白质印迹法检测异位内膜组织中雌激素受体(estrogen receptor,ER)α、ERβ和孕激素受体(progesterone receptor,PR)蛋白的表达。 结果 给药3周后发现,与模型组相比,曲普瑞林组和GenSci006-2组大鼠的体重显著增加(P<0.05),而异位内膜的体积显著减小(P<0.05)。与假手术组相比,模型组子宫、卵巢脏器系数及子宫内膜厚度无明显变化(P>0.05);与模型组相比,曲普瑞林组和GenSci006-2组子宫脏器系数及子宫内膜厚度显著降低(P<0.05)。与假手术组相比,模型组血清中E2、P4、FSH、LH水平无明显变化(P>0.05);与模型组相比,曲普瑞林组、GenSci006-1组和GenSci006-2组大鼠的卵巢脏器系数和血清P4水平均显著降低(P<0.05),而GenSci006-1组大鼠的血清LH水平明显升高(P<0.05),但各组血清E2和FSH水平并无显著变化(P>0.05)。与模型组相比,曲普瑞林组和GenSci006-2组大鼠垂体GnRHR mRNA表达水平显著下调(P<0.05);各组大鼠下丘脑组织中GnRHR mRNA表达及异位内膜组织中ERα、ERβ、PR蛋白表达水平无明显变化(P>0.05)。 结论 大鼠同种异体子宫内膜异位症模型适宜作为筛选和评价子宫内膜异位症治疗药物的动物模型,而且异位内膜体积、抑制率、子宫及卵巢脏器系数、血清E2水平均可作为检测药物疗效的指标。
中图分类号:
钟瑞华, 李国停, 杨文捷, 郭湘洁, 周洁芸, 胡颖怡, 倪其承, 杨野, 张敏, 朱焰. 同种异体子宫内膜异位症大鼠模型用于GnRH激动剂类药物的药效评价研究[J]. 实验动物与比较医学, 2024, 44(2): 127-138.
Ruihua ZHONG, Guoting LI, Wenjie YANG, Xiangjie GUO, Jieyun ZHOU, Yingyi HU, Qicheng NI, Ye YANG, Min ZHANG, Yan ZHU. Application of Allograft Endometriosis Rat Model in Pharmaco-dynamic Evaluation of GnRH Agonists[J]. Laboratory Animal and Comparative Medicine, 2024, 44(2): 127-138.
图1 GenSci006对同种异体移植子宫异位内膜症模型大鼠体重的影响注:Sham即假手术组,移植同种异体子宫周围的脂肪到大鼠腹壁,然后注射GenSci006专用溶剂;Model即模型组,移植同种异体子宫内膜组织到大鼠腹壁,然后注射GenSci006专用溶剂;Triptorelin即曲普瑞林组,移植同种异体子宫内膜组织到大鼠腹壁,然后注射曲普瑞林0.25 mg/kg;GenSci006-1和GenSci006-2组,移植同种异体子宫内膜组织到大鼠腹壁,然后分别注射0.125 mg/kg和 0.25 mg/kg的GenSci006。每组16只大鼠;与模型组相比,*P<0.05。
Figure 1 Effect of GenSci006 on body weight of allograft endometriosis rat modelNote:Sham group (n=16), transplanted with fat tissues around the uterus and injected with GenSci006 specific solvent; Model group (n=16), xenografted with endometrial tissues and injected with GenSci006 specific solvent; Triptorelin group(n=16), xenografted with endometrial tissues and injected with 0.25 mg/kg triptorelin; GenSci006-1 and GenSci006-2 groups (each n=16), xenografted with endometrial tissues and injected with 0.125 mg/kg and 0.25 mg/kg GenSci006, respectively. Compared with the model group, * P<0.05.
图2 GenSci006对同种异体移植子宫内膜异位症模型大鼠异位内膜的抑制作用注:A,给药前各组大鼠的异位内膜图片;B,给药后各组大鼠的异位内膜图片;C,给药3周后各组大鼠的异位内膜病理学特征(HE染色,×10);D,给药前、后各组大鼠的异位内膜体积及抑制率。Sham即假手术组,移植同种异体子宫周围的脂肪到大鼠腹壁,然后注射GenSci006专用溶剂;Model即模型组,移植同种异体子宫内膜组织到大鼠腹壁,然后注射GenSci006专用溶剂;Triptorelin即曲普瑞林组,移植同种异体子宫内膜组织到大鼠腹壁,然后注射曲普瑞林0.25 mg/kg;GenSci006-1和GenSci006-2组,移植同种异体子宫内膜组织到大鼠腹壁,然后分别注射0.125 mg/kg和 0.25 mg/kg的GenSci006。每组16只大鼠;与模型组相比,*P<0.05。
Figure 2 Inhibitory effect of GenSci006 on ectopic endometrium in allograft endometriosis ratsNote: A, Pictures of ectopic endometrium before administration; B, Pictures of ectopic endometrium after administration;C, Pathological section of ectopic endometrium in endometriosis model rats(HE staining, ×10);D, Tthe volume of ectopic endometrium before and after administration and the inhibition rate. Sham group (n=16), transplanted with fat tissues around the uterus and injected with GenSci006 specific solvent; Model group (n=16), xenografted with endometrial tissues and injected with GenSci006 specific solvent; Triptorelin group (n=16), xenografted with endometrial tissues and injected with 0.25 mg/kg triptorelin; GenSci006-1 and GenSci006-2 groups (each n=16), xenografted with endometrial tissues and injected with 0.125 mg/kg and 0.25 mg/kg GenSci006, respectively. Compared with the model group,*P<0.05.
图3 GenSci006对同种异体移植子宫内膜异位症模型大鼠子宫和卵巢的影响注:A示子宫组织病理切片(×10);B示卵巢组织病理切片(×10),箭头所指处为生长卵泡;C示子宫、卵巢脏器系数和子宫组织的内膜厚度。Sham即假手术组,移植同种异体子宫周围的脂肪到大鼠腹壁,然后注射GenSci006专用溶剂;Model即模型组,移植同种异体子宫内膜组织到大鼠腹壁,然后注射GenSci006专用溶剂;Triptorelin即曲普瑞林组,移植同种异体子宫内膜组织到大鼠腹壁,然后注射曲普瑞林0.25 mg/kg;GenSci006-1和GenSci006-2组,移植同种异体子宫内膜组织到大鼠腹壁,然后分别注射0.125 mg/kg和 0.25 mg/kg的GenSci006。每组16只大鼠;与模型组相比,*P<0.05。
Figure 3 Effect of GenSci006 on uterus and ovary in allograft endometriosis ratsNote:A, Pathological section of uterus in endometriosis model rats (HE staining, ×10);B, Ppathological section of ovary in endometriosis model rats (HE staining, ×10); The arrow represents growth follicles;C, The coefficient of uterine organs,endometrial thickness and ovarian organ coefficient. Sham group (n=16), transplanted with fat tissues around the uterus and injected with GenSci006 specific solvent; Model group (n=16), xenografted with endometrial tissues and injected with GenSci006 specific solvent; Triptorelin group (n=16), xenografted with endometrial tissues and injected with 0.25 mg/kg triptorelin; GenSci006-1 and GenSci006-2 groups (each n=16), xenografted with endometrial tissues and injected with 0.125 mg/kg and 0.25 mg/kg GenSci006, respectively. Compared with the model group,*P<0.05
图 4 GenSci006对同种异体移植子宫内膜异位症模型大鼠血清E2、P4、FSH和LH水平的影响注:A,血清中雌二醇(E2 )水平;B,血清中孕酮(P4)水平;C,血清中卵泡刺激素(FSH)水平;D,血清中黄体生成素(LH)水平。Sham即假手术组,移植同种异体子宫周围的脂肪到大鼠腹壁,然后注射GenSci006专用溶剂;Model即模型组,移植同种异体子宫内膜组织到大鼠腹壁,然后注射GenSci006专用溶剂;Triptorelin即曲普瑞林组,移植同种异体子宫内膜组织到大鼠腹壁,然后注射曲普瑞林0.25 mg/kg;GenSci006-1和GenSci006-2组,移植同种异体子宫内膜组织到大鼠腹壁,然后分别注射0.125 mg/kg和 0.25 mg/kg的GenSci006。每组8只大鼠;与模型组相比,*P<0.05;与曲普瑞林组相比,#P<0.05。
Figure 4 Effect of GenSci006 on serum levels of E2, P4, FSH and LH in allograft endometriosis ratsNote: A, Serum level of estradiol (E2); B, Serum level of progesterone (P4); C, Serum level of follicle stimulating hormone (FSH); D, Serum level of luteinizing hormone (LH). Sham group (n=8), transplanted with fat tissues and injected with GenSci006 specific solvent; Model group (n=8), xenografted with endometrial tissues around the uterus and injected with GenSci006 specific solvent; Triptorelin group (n=8), xenografted with endometrial tissues and injected with 0.25 mg/kg triptorelin; GenSci006-1 and GenSci006-2 groups (each n=8), xenografted with endometrial tissues and injected with 0.125 mg/kg and 0.25 mg/kg GenSci006, respectively. Compared with the model group, *P<0.05; Compared with the triptorelin group, #P<0.05.
图5 GenSci006对同种异体移植子宫内膜异位症模型大鼠下丘脑和垂体组织中GnRHR基因mRNA表达水平的影响注:A,下丘脑组织中促性腺激素释放激素受体(GnRHR) mRNA 表达;B,垂体组织中GnRHR mRNA 表达。Sham即假手术组,移植同种异体子宫周围的脂肪到大鼠腹壁,然后注射GenSci006专用溶剂;Model即模型组,移植同种异体子宫内膜组织到大鼠腹壁,然后注射GenSci006专用溶剂;Triptorelin即曲普瑞林组,移植同种异体子宫内膜组织到大鼠腹壁,然后注射曲普瑞林0.25 mg/kg;GenSci006-1和GenSci006-2组,移植同种异体子宫内膜组织到大鼠腹壁,然后分别注射0.125 mg/kg和 0.25 mg/kg的GenSci006。每组6只大鼠;与模型组相比,*P<0.05。
Figure 5 Effect of GenSci006 on GnRHR mRNA expression in hypothalamus and pituitary of allograft endometriosis ratsNote: A, Gonadotropin-releasing hormone receptor (GnRHR) mRNA expression in hypothalamus; B, GnRHR mRNA expression in pituitary. Sham group (n=6), transplanted with fat tissues and injected with GenSci006 specific solvent; Model group (n=6), xenografted with endometrial tissues around the uterus and injected with GenSci006 specific solvent; Triptorelin group (n=6), xenografted with endometrial tissues and injected with 0.25 mg/kg triptorelin; GenSci006-1 and GenSci006-2 groups (each n=6), xenografted with endometrial tissues and injected with 0.125 mg/kg and 0.25 mg/kg GenSci006, respectively. Compared with the model group, *P<0.05.
图6 GenSci006对同种异体移植子宫内膜异位症模型大鼠异位内膜组织中ERα、ERβ、PR蛋白表达的影响注:ERα/β,雌激素受体α/β;PR,孕激素受体。Model即模型组,移植同种异体子宫内膜组织到大鼠腹壁,然后注射GenSci006专用溶剂;Triptorelin即曲普瑞林组,移植同种异体子宫内膜组织到大鼠腹壁,然后注射曲普瑞林0.25 mg/kg;GenSci006-1和GenSci006-2组,移植同种异体子宫内膜组织到大鼠腹壁,然后分别注射0.125 mg/kg和 0.25 mg/kg的GenSci006。每组6只大鼠。
Figure 6 Effect of GenSci006 on protein expression of ERα、ERβ、PR in ectopic endometrial tissues of allograft endometriosis rat modelNote: ERα/β, Estradiol receptor α/β; PR, Progesterone receptor. Model group (n=6), xenografted with endometrial tissues around the uterus and injected with GenSci006 specific solvent; Triptorelin group (n=6), xenografted with endometrial tissues and injected with 0.25 mg/kg triptorelin; GenSci006-1 and GenSci006-2 groups (each n=6), xenografted with endometrial tissues and injected with 0.125 mg/kg and 0.25 mg/kg GenSci006, respectively.
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