目的 分析贝伐珠单抗与化疗对晚期结直肠癌患者4种错配修复蛋白（MSH2、MLHI、MSH6、PMS2）水平影响。方法 选择2022年1月—2024年1月江苏省宿迁市中医院肿瘤科102例晚期结直肠癌患者,按抽签法分成两组,即化疗组及联合组,各51例。化疗组应用FOLFOX（亚叶酸钙+奥沙利铂+氟尿嘧啶）方案进行化疗,联合组采取贝伐珠单抗联合FOLFOX方案治疗。对比其肿瘤控制效果、免疫功能及MSH2、MLHI、MSH6和PMS2水平变化,并对比组间不良反应发生率。结果 联合组客观缓解率、疾病控制率高于化疗组（P<0.05）;治疗后联合组患者CD4⁺、CD3⁺、CD8⁺、和CD4⁺/CD8⁺数值高于化疗组,且两组治疗后均低于治疗前（P<0.05）;治疗后两组患者MSH2、MLHI、MSH6和PMS2缺失率对比无统计学意义（P>0.05）,但其阳性、阴性表达情况对比差异有统计学意义,联合组MSH2、MLHI、MSH6和PMS2阳性率低于化疗组（P<0.05）;两组不良反应发生率对比差异无统计学意义（P>0.05）。结论 对晚期结直肠癌在化疗基础上增加贝伐珠单抗抗肿瘤效果显著,改善其免疫功能,虽无法改善患者错配修复蛋白缺损,但可辅助降低其阳性率,且不影响安全性。

Objective To analyze the effects of bevacizumab and chemotherapy on the levels of four mismatch repair proteins（MSH2,MLHI,MSH6,PMS2）in patients with advanced colorectal cancer. Methods A total of 102 patients with advanced colorectal cancer from the Oncology Department of Suqian Traditional Chinese Medicine Hospital in Jiangsu Province from January 2022 to January 2024 were selected,and were divided into two groups according to the drawing method,namely the chemotherapy group and the combination group,with 51 patients in each group．The chemotherapy group received FOLFOX（calcium folinate+oxaliplatin+fluorouracil）regimen for chemotherapy,while the combination group received bevacizumab combined with FOLFOX regimen for treatment．Tumor control effect,immune function,and changes in MSH2,MLHI,MSH6,and PMS2 levels,and its incidence of adverse reactions were compared．Results The objective remission rate and disease control rate of the combined group were higher than those of the chemotherapy group（P<0.05）．After treatment,the CD4⁺,CD3⁺,CD8⁺ and CD4⁺/CD8⁺ values in the combination group were higher than those in the chemotherapy group,and those after treatment were lower than those before treatment in both groups（P<0.05）．After treatment,there were no significant differences in the deletion rates of MSH2,MLHI,MSH6,and PMS2 between the two groups of patients（P>0.05）,but there was a significant difference in their positive and negative expression．The positive rates of MSH2,MLHI,MSH6,and PMS2 in the combination group were lower than those in the chemotherapy group（P<0.05）．There was no significant difference in the incidence of adverse reactions between the two groups（P>0.05）．Conclusions Adding bevacizumab on the basis of chemotherapy has a significant anti-tumor effect on advanced colorectal cancer,improving its immune function．Although it cannot improve the mismatch repair protein defect in patients,it can assist in reducing its positivity rate and has high safety．

目的 评价贝伐单抗联合肝动脉化疗栓塞治疗原发性肝癌的疗效及不良反应。方法 2名评价员通过独立地检索中英文数据库,纳入随机对照研究,其中治疗组为肝动脉灌注贝伐单抗联合肝动脉化疗栓塞组、对照组为单独肝动脉化疗栓塞组,并通过Jadad量表对纳入文献质量进行评分,最后采用Review Manager 5.2软件进行Meta分析。结果 纳入6篇文献,466例病例。结果显示:在疗效方面,治疗组的3、6个月疾病有效率及疾病控制率,12个月的生存率均高于对照组且差异有统计学意义(P<0.05);在安全性方面,两组间关于发热、转氨酶升高、恶心、黑便的发生率之间的比较无统计学意义(P＞0.05)。结论 肝动脉灌注贝伐单抗联合肝动脉化疗栓塞治疗原发性肝癌与单独肝动脉化疗栓塞比较,能有效提高肝癌患者近期及远期疗效,且并不增加不良反应发生率。

Objective To evaluate the efficacy and side effects of bevacizumab combined with thanscatheter artierial chemoembolzation in the treatment of primary liver cancer. Methods Two reviewers collected data about clinical trials that the combination of bevacizumab and thanscatheter artierial chemoembolzation for treatment of primary liver cancer from data bases. Jadad Score and Review Manager 5.2 software were respectively used to assess the quality of included studies and analyze the obtained data. Results Six randomized controlled trials involving 466 patients were included in this paper. The results of the meta-analysis showed that compared with thanscatheter artierial chemoembolzation group alone, bevacizumab combined with thanscatheter artierial chemoembolzation improved the response rate and disease control rate, prolonged 12 month survival rate (P<0.05). As for side effects, there were no statistically different of those about fever, level of transaminase, nausea and melena between two groups(P>0.05). Conclusion Compared with simple thanscatheter artierial chemoembolzation group, and Bevacizumab combined with thanscatheter artierial chemoembolzation group, the later may improve short-term and long-term effects, and side effects were under control.

       目的   分析贝伐珠单抗与化疗对晚期结直肠癌患者4种错配修复蛋白（MSH2、MLHI、MSH6、PMS2）水平影响。方法   选择2022年1月—2024年1月江苏省宿迁市中医院肿瘤科102例晚期结直肠癌患者，按抽签法分成两组，即化疗组及联合组，各51例。化疗组应用FOLFOX（亚叶酸钙+奥沙利铂+氟尿嘧啶）方案进行化疗，联合组采取贝伐珠单抗联合FOLFOX方案治疗。对比其肿瘤控制效果、免疫功能及MSH2、MLHI、MSH6和PMS2水平变化，并对比组间不良反应发生率。结果   联合组客观缓解率、疾病控制率高于化疗组（P＜0.05）；治疗后联合组患者CD4⁺ 、CD3⁺ 、CD8⁺ 、和CD4⁺ /CD8⁺数值高于化疗组，且两组治疗后均低于治疗前（P＜0.05）；治疗后两组患者MSH2、MLHI、MSH6和PMS2缺失率对比无统计学意义（P＞0.05），但其阳性、阴性表达情况对比差异有统计学意义，联合组MSH2、MLHI、MSH6和PMS2阳性率低于化疗组（P＜0.05）；两组不良反应发生率对比差异无统计学意义（P＞0.05）。结论   对晚期结直肠癌在化疗基础上增加贝伐珠单抗抗肿瘤效果显著，改善其免疫功能，虽无法改善患者错配修复蛋白缺损，但可辅助降低其阳性率，且不影响安全性。

       Objective  To analyze the effects of bevacizumab and chemotherapy on the levels of four mismatch  repair proteins（MSH2，MLHI，MSH6，PMS2）in patients with advanced colorectal cancer．Methods  A total of 102 patients with advanced colorectal cancer from the Oncology Department of Suqian Traditional Chinese Medicine Hospital in  Jiangsu Province from January 2022 to January 2024 were selected，and were divided into two groups according to the drawing method，namely the chemotherapy group and the combination group，with 51 patients in each group．The chemotherapy group received FOLFOX（calcium folinate+oxaliplatin+fluorouracil）regimen for chemotherapy，while the combination group received bevacizumab combined with FOLFOX regimen for treatment．Tumor control effect，immune function，and changes in MSH2，MLHI，MSH6，and PMS2 levels，and its incidence of adverse reactions were compared．Results  The objective remission rate and disease control rate of the combined group were higher than those of the chemotherapy group（P＜0.05）．After treatment，the CD4⁺ ，CD3⁺ ，CD8⁺ and CD4⁺ /CD8⁺ values in the combination group were higher than those in the chemotherapy group，and those after treatment were lower than those before treatment in both groups（P＜0.05）．After treatment，there were no significant differences in the deletion  rates of MSH2，MLHI，MSH6，and PMS2 between the two groups of patients（P＞0.05），but there was a significant difference in their positive and negative expression．The positive rates of MSH2，MLHI，MSH6，and PMS2 in the combination group were lower than those in the chemotherapy group（P＜0.05）．There was no significant difference in the incidence of adverse  reactions between the two groups（P＞0.05）．Conclusions  Adding bevacizumab on the basis of chemotherapy has a significant anti-tumor effect on advanced colorectal cancer，improving its immune function．Although it cannot improve the mismatch  repair protein defect in patients，it can assist in reducing its positivity rate and has high safety．