医学临床研究
醫學臨床研究
의학림상연구
JOURNAL OF CLINICAL RESEARCH
2013年
12期
2292-2295
,共4页
陆守荣%王滨%王卓%茆勇%华东%黄猛
陸守榮%王濱%王卓%茆勇%華東%黃猛
륙수영%왕빈%왕탁%묘용%화동%황맹
胃肿瘤%疾病模型 ,动物
胃腫瘤%疾病模型 ,動物
위종류%질병모형 ,동물
Stomach Neoplasms%Disease Models,Animal
[目的]探讨低分子肝素(LMWH)对裸鼠胃癌原位模型生长、转移及趋化因子SDF-1表达的影响。[方法]应用原位移植方法建立裸鼠胃癌原位模型,术后7d将裸鼠随机分为3组:对照组(生理盐水)、化疗组(5-氟尿嘧啶)、LMWH组(低分子肝素钙),分别每周注药2次,共5周,第6周处死动物,观察裸鼠胃癌原位模型肿瘤转移及生长情况。采用RT-PCR技术检测胃肿瘤组织SDF-1 mRNA表达水平。[结果]化疗组、LMWH组肿瘤体积较对照组明显缩小,差异有统计学意义( P <0.05);LMWH组胃癌原位模型肿瘤转移率(20%)低于对照组(70%),差异有统计学意义(P <0.05),而与化疗组之间差异无统计学意义(P >0.05);LMWH组SDF-1 mRNA表达均较对照组和化疗组低,差异有统计学意义( P <0.05)。[结论]LM-W H可抑制裸鼠胃癌原位模型的肿瘤生长及远处转移,其部分机制可能与降低肿瘤SDF-1的表达有关。
[目的]探討低分子肝素(LMWH)對裸鼠胃癌原位模型生長、轉移及趨化因子SDF-1錶達的影響。[方法]應用原位移植方法建立裸鼠胃癌原位模型,術後7d將裸鼠隨機分為3組:對照組(生理鹽水)、化療組(5-氟尿嘧啶)、LMWH組(低分子肝素鈣),分彆每週註藥2次,共5週,第6週處死動物,觀察裸鼠胃癌原位模型腫瘤轉移及生長情況。採用RT-PCR技術檢測胃腫瘤組織SDF-1 mRNA錶達水平。[結果]化療組、LMWH組腫瘤體積較對照組明顯縮小,差異有統計學意義( P <0.05);LMWH組胃癌原位模型腫瘤轉移率(20%)低于對照組(70%),差異有統計學意義(P <0.05),而與化療組之間差異無統計學意義(P >0.05);LMWH組SDF-1 mRNA錶達均較對照組和化療組低,差異有統計學意義( P <0.05)。[結論]LM-W H可抑製裸鼠胃癌原位模型的腫瘤生長及遠處轉移,其部分機製可能與降低腫瘤SDF-1的錶達有關。
[목적]탐토저분자간소(LMWH)대라서위암원위모형생장、전이급추화인자SDF-1표체적영향。[방법]응용원위이식방법건립라서위암원위모형,술후7d장라서수궤분위3조:대조조(생리염수)、화료조(5-불뇨밀정)、LMWH조(저분자간소개),분별매주주약2차,공5주,제6주처사동물,관찰라서위암원위모형종류전이급생장정황。채용RT-PCR기술검측위종류조직SDF-1 mRNA표체수평。[결과]화료조、LMWH조종류체적교대조조명현축소,차이유통계학의의( P <0.05);LMWH조위암원위모형종류전이솔(20%)저우대조조(70%),차이유통계학의의(P <0.05),이여화료조지간차이무통계학의의(P >0.05);LMWH조SDF-1 mRNA표체균교대조조화화료조저,차이유통계학의의( P <0.05)。[결론]LM-W H가억제라서위암원위모형적종류생장급원처전이,기부분궤제가능여강저종류SDF-1적표체유관。
[Objective] To explore the effect of low-molecular weight heparin(LMWH) on tumor metasta-sis and grow th and the expression of SDF-1 in orthotopic transplantation gastric tumor model of nude mice .[Methods] The models of orthotopic transplantation gastric cancer in nude mice was established by orthotopic transplantation .All nude mice were randomly divided into control group (normal saline) ,chemotherapy group (5-fluorouracil) and LWMH group(LWMH) .The treatment duration was twice a week for 5 weeks .The ani-mals were sacrificed at 6 weeks .The tumor growth and metastasis of orthotopic gastric cancer in nude mice were observed .RT-PCR was used to detect the expression of SDF-1 mRNA in gastric cancer tissues .[Re-sults]Compared with control group ,the tumor size in chemotherapy group and LMWH group were reduced obviously ,and there was significant difference( P <0 .05) .The tumor metastasis rate in LMWH group was lower than that in control group(20% vs .70% ) ,and there was significant difference between LMWH group and control group( P<0 .05) ,but there was no difference between LMWH group and chemotherapy group( P>0 .05) .The expression of SDF-1 mRNA in LMWH group was lower than that in control group and chemo-therapy group ,and there was significant difference( P <0 .05) .[Conclusion] LMWH can inhibit the tumor growth and distant metastasis of orthotopic transplantation gastric cancer in nude mice .The mechanism may be associated with the decreasing of SDF-1 expression .