摘要
目的探讨化疗药非清髓预处理与人脐带血造血干细胞移植(HSCT)对小鼠生精功能的影响。方法将30只Balb/c小鼠按照随机数字表法分为三组,每组10只,分别为对照组、白消安(BU)联合环磷酰胺(CY)非清髓预处理(BU+CY)组、HSCT组。除对照组外,BU+CY组和HSCT组使用BU 10 mg/kg和CY 120 mg/kg预处理造成睾丸损伤,HSCT组进行人脐带血HSCT。HSCT移植3周后,称重法计算睾丸指数,进行小鼠精液质量常规分析及睾丸、附睾的病理组织学检查。结果与对照组比较,BU+CY组小鼠睾丸指数、精子密度和精子活力均显著降低,而精子畸形率升高(P<0.01)。HSCT组小鼠移植物抗宿主病(GVHD)评分较高,睾丸指数、精子密度和活力均高于BU+CY组(P<0.05),精子畸形率低于BU+CY组(P<0.01)。病理学检查发现,BU+CY组小鼠睾丸体积较小,生精小管破坏明显,生精细胞肿胀、排列紊乱,生精上皮变薄,生精小管与附睾管内精子数目大大减少;与BU+CY组比较,HSCT组睾丸体积增大,生精小管完整性较好,生精小管内精子数量较高,但生精上皮层数和精母细胞数量仍较少。结论 BU+CY非清髓预处理可造成明显睾丸损伤,轻度急性GVHD情况下,脐带血HSCT可一定程度促进睾丸生精功能的恢复。
Objective To explore the effects of chemotherapeutic drugs non-myeloablative pretreatment and human cord blood hematopoietic stem cells transplantation（HSCT） on the spermatogenic function in mice. Methods Thirty Balb/c mice were divided into 3 groups by random digital table method, with 10 mice in each group, which contained control group, Busulfan（BU） combined with Cyclophosphamide（CY） non-myeloablative conditioning（BU＋CY） group and HSCT group. In addition to the control group, BU ＋CY group and HSCT group were pretreated with BU 10 mg/kg and CY120 mg/kg to induce testicular lesion, and HSCT group was taken human umbilical cord blood HSCT. After HSCT for three weeks, the testicular index was calculated by weighting method. The routine quality analysis of semen and histopathological exa mination of the testis and epididymis were carried out. Results Compared with the control group, the testicular index, sperm density and sperm viability in BU＋CY group were significantly decreased, but the sperm malformation rate was significantly increased（P〈0.01）. The graft versus host disease（GVHD） score was higher in HSCT group. The testicular index, sperm density and sper m viability in HSCT group were higher than those in BU ＋CY group （P〈0.05）, while the sperm malformation rate was lower than that of BU＋CY group（P〈0.01）. The pathological examination found that the testicular volume in BU＋CY group was smaller, the seminiferous tubules were obviously impaired,the spermatogenic cells were swelled and arranged in disorder, the seminiferous epithelia was thinned, the number of sperm was significantly reduced in seminiferous tubule and epididymal tubule. Compared with the BU＋CY group, the testicular volume in HSCT group was increased, the seminiferous tubule was more integrity, and the number of sperm was increased, but the number of layers seminiferous epithelia cells and spermatocyte were still less. Conclusion BU＋CY non-myeloablative conditioning can cause obvious testis inju
作者
张萌
姚观平
何方
李玉香
范振海
余丽梅
ZHANG Meng;YAO Guanping;HE Fang;LI Yuxiang;FAN Zhenhai;YU Limei(Key Laboratory of Cell Engineering in Guizhou Province, Affiliated Hospital of Zunyi Medical University, Guizhou Province, Zunyi 563000, China;Human Reproductive Medicine Center, Affiliated Hospital of Zunyi Medical Uni- versity, Guizhou Province, Zunyi 563000, China;Department of Phylaxiology and Pediatric Dentistry, Hospital of Stomatology, Zunyi Medical University, Guizhou Province, Zunyi 563000, China)
出处
《中国医药导报》
CAS
2018年第13期9-13,共5页
China Medical Herald
基金
国家自然科学基金资助项目(81260507
81460136)
关键词
白消安
环磷酰胺
脐带血造血干细胞
睾丸损伤
Busulfan
Cyclophosphamide
Cord blood hematopoietic stem cell
Testis injury
