基于红细胞安全的体外热化疗处理对回收血中不同肿瘤细胞株的杀灭作用  被引量:3

Pretreatment with cisplatin plus hyperthermia kills different tumor cells but preserves theerythrocyte function in the intra-operative blood salvage in vitro

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作  者:杨瑾婷[1] 唐丽辉[1] 彭余楠[2] 张冯江[2] 严敏[2] 

机构地区:[1]徐州医学院江苏省麻醉学重点实验室,江苏省徐州市221002 [2]浙江大学医学院附属第二医院麻醉科

出  处:《中华医学杂志》2014年第7期495-498,共4页National Medical Journal of China

基  金:浙江省省部共建基金(WKJ2008-2-021)

摘  要:目的观察顺铂联合高温对肿瘤手术回收血液中红细胞功能的影响及对其中HepG2、SGC7901与SW620细胞株的杀灭作用。方法回收2013年3-6月浙江大学医学院第二附属医院30例行择期手术的胃肠道肿瘤患者术中血,经医院伦理委员会通过并患者知情同意,制备成红细胞悬液,每1例分成3等份,分别加入HepG2、SGC7901与SW620细胞株,充分混匀后,每份细胞随机分为9组(n=30):A组(37℃),B组(42℃),C、D、E组(37℃,50、100、200μg/ml顺铂),F、G、H、I组(42℃,25、50、100、200μg/ml顺铂)。所有组别均处理60rain后,分离红细胞和肿瘤细胞,测定红细胞Na+-K+ -ATPase活力、红细胞计数、红细胞渗透脆性及细胞悬液血气指标,测定肿瘤细胞抑制率和培养14d后克隆形成率。结果与A组[(0.30±0.08)μmolPi/10^7/h]比较,E、H和I组的Na+-K+-ATPase活力[(0.24±0.07)、(0.25.4±0.06)和(0.24±0.07)μmolPi/10^7/h]明显降低(P〈0.05)。与A组[(1.53±0.43)mmol/L]比较,E、H和I组K+[(2.16±0.37)、(2.16±0.38)和(2.56±0.50)mmol/L]明显升高(P〈0.05)。E、H和I组的渗透脆性与A组比较明显增加(P〈0.05)。B、c、D、E、F、G4组中,只有G组的HepG2、SGC7901及SW620的细胞克隆(0%±0%、0%±0%和0.01%±0.01%)被完全抑制,与A组比较差异有统计学意义(P〈0.05,78.54%±7.83%、72.28%±6.58%和66.69%±6.69%)。结论顺铂体外热化疗(42℃,50μg/m1)处理回收血液60min,可能是清除肿瘤术回收血液中游离肿瘤细胞有效手段,值得进一步优化并应用于肿瘤手术自体血液回输。Objective To investigate the effects of cisplatin plus hyperthermia on erythrocytes and killing human hepatocarcinoma ( HepG2 ), gastrocarcinoma ( SGC7901 ) and colonic carcinoma (SW620) ceils in the intra-operative blood salvage from cancer surgery in vitro. Methods HepG2, SGC7901 or SW620 cells were mixed into the aliquot of erythrocyte concentrated from each intra-operative blood salvage of 30 patients subjected to gastrointestinal cancer surgery. The mixture cells were divided into the following groups (n =30) : A group (37 %) ; B group (42 %) ; C, D, E groups (50, 100, or200 μg/ml DDP) ; F, G, H, I groups (42 ℃, 25, 50, 100, or 200 μg/ml DDP). After treating for 60 min, tumor cells and erythrocytes were separated by density gradient centrifugation. The Na + -K + -ATPase activity, cell count, osmotic fragility, and blood gas variables were determined in erythrocytes. Cell viability and colony formation were determined in tumor cells. Results Compared with A [ (0. 30 ± 0. 08) μmol Pi/107/h ], the Na + - K + -ATPase activity was significantly decreased in E, H and I groups [ (0. 24 ± O. 07 ), (0. 25 ± O. 06 ) and (0.24±0.07) μmol Pi/107/h] (P 〈0.05). Extra-erythrocytic K+in E, H and I groups [(2. 16 ± 0. 37), (2. 16 ±0. 38) and (2. 56 ±0. 50) mmol/L] were significantly increased compared with A group[ ( 1.53 +0. 43) mmol/L] (P 〈0. 05). Compared with A group, osmotic fragility in E, H and I groups was significantly increased ( P 〈 0. 05 ). Among B, C, D, E, F, G groups, only in G group colony formations of HepG2, SGC7901, and SW620 (0% +0%, 0% ± 0% and 0. 01% ± 0. 01% ) at 14 d were completely inhibited (P 〈 0. 01 ) compared with A group (78.54% ± 7. 83%, 72. 28% ± 6. 58% and 66. 69% ± 6. 69% ). Conclusion Pretreatment with cisplatin (50 Ixg/ml) plus hyperthermia (42℃ ) for 60 min in vitro might be an effective strategy to clear tumor cells contamination but preserve erythro

关 键 词:肿瘤手术自体血液回输 顺铂 高温 红细胞 肿瘤细胞 

分 类 号:R614[医药卫生—麻醉学] R730.5[医药卫生—外科学]

 

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