Experimental study on effect of recombinant human growth hormone combined with chemotherapy on stomach neoplasms implanted in nude mice

Objective: To investigate the effect of different doses of recombined growth hormone (rhGH) on stomach neo- plasms implanted in nude mice, and its efficacy in combining with chemotherapy (flurouracil, 5-FU). Methods: Human stom- ach neoplasms model was established in nude mice. The nude mice were divided into control group, moderate-dose of rhGH group, low-dose rhGH group, 5-FU group, moderate-dose rhGH/5-FU group, and low-dose rhGH/5-FU group. The results of each group were observed after ten days. Results: After therapy, the body mass of rhGH groups was significantly increased compared with control group (P<0.05), the body mass of rhGH/5-FU groups was significantly increased compared with 5-FU group (P<0.05), but it was no significant difference between rhGH/5-FU groups and control group (P>0.05). The average tumor mass and volume of rhGH groups were not significantly increased compared with control group (P>0.05), but they were significantly reduced in 5-FU group and rhGH/5-FU groups (P<0.05). They were no significant difference between rhGH/5- FU groups and 5-FU group (P>0.05). After treatment, the percentages of S, G0/G1 and G2/M phases and proliferation index (PI) were not significantly changed in rhGH groups compared with control group (P>0.05), and the same with rhGH/5-FU groups compared with 5-FU group (P>0.05). The difference caused by dose of rhGH was not significant. Conclusion: rhGH enhances body mass, does not stimulate tumor growth, and has no adverse effects on tumor bearing nude mice. Combined with flurouracil, rhGH does not influence the efficacy of chemotherapy, and has no effect on tumor cell cycle kinetics.

CONGENITAL EXPRESSION OF mdr-1 GENE IN FRESH CANCER TISSUES FROM SEVERAL HIGH-INCIDENCE NEOPLASMS WITHOUT PREOPERATIVE CHEMOTHERAPY

Objective: The purpose of the present study is to detect characteristics of primary expression of mdr 1 gene in several neoplasms which has high morbidity in clinic. Methods: 151 resected samples, which are pathologically malignant and clinically untreated before operation, were obtained from Anyang Cancer Hospital. All of them were investigated with RT PCR for the expression of mdr 1 gene and correlated each other. Besides, we evaluated the advantages of RT PCR in this study. Results: The mdr 1 gene expression rate of these 151 samples, including cancers of stomach and gastric cardia (n=51), esophagus (n=46), colorectum (n=16), breast (n=15), thyroid (n=10), lung (n=9), uterine cervix (n=4), was 33.3%, 37%, 31.3%, 13.2%, 40%, 55%, 0%, respectively. Conclusion: Compared with other methods, RT PCR for studying mdr 1 gene expression had certain advantages in simplicity, reliability, and accuracy. Overexpression of mdr 1 gene in these neoplasms suggested that cases should be distinguished before treatment according to MDR of tumor and to choose effective drugs for individual cancer patient.

Transduction of Fas gene or Bcl-2 antisense RNA sensitizes cultured drug resistant gastric cancer cells to chemotherapeutic drugs

AIM To compare the expression level of Fas gene and Bcl-2 gene in gastric cancer cells SGC7901 and gastric cancer MDR (multidrug resistant) cells SGC7901/VCR, to transduce Fas cDNA and Bcl-2 antisense nucleic acid into SGC7901/VCR cells respectively, and to observe the expression of two genes in transfectants and non-transfectants as well as their drug sensitivity.METHODS Eukaryotic expression vector pBK-Fas cDNA and pDOR-anti Bcl-2 were constructed and transfected into SGC7901/VCR cells by lipofectamine, respectively. Northern blot and Western blot were used to detect the expression of mRNA and protein in SGC7901/VCR and SGC7901 cells and transfectants, and drug sensitivity of transfectants for VCR, CDDP and 5-FU was analyzed with MTT assay.RESULTS After gene transfection, 80 for Fas and 120 for antisense Bcl-2 drug-resistant clones were selected from 2×105 cells, transfection rate being 0.04% and 0.06%. Two clones of SGC7901 Fas/VCR cells and SGC7901 anti Bcl-2/VCR cells were randomly selected for further incubation. Hybridization results showed that the expression level of Fas mRNA and protein in SGC7901/VCR cells was much lower, but that of Bcl-2 mRNA and protein was higher than that in SGC7901 cells. The expression of Fas mRNA and protein in SGC7901 Fas/VCR cells was higher, and of Bcl-2 mRNA and protein was lower in SGC7901 anti Bcl-2/VCR cells than that in non-transfectants. MTT assay showed that transfectants were more sensitive to VCR, CDDP, 5-FU than non-transfectants.CONCLUSION Bcl-2 gene displayed high expression while Fas gene had low expression in drug resistant gastric cancer cells. Expression of Bcl-2 protein was effectively blocked in SGC7901 anti Bcl-2/VCR cells by gene transfection. In contrast, the expression of Fas mRNA and protein in SGC7901 Fas/VCR cells increased. Fas gene and Bcl-2 antisense nucleic acid transfection sensitized drug resistant gastric cancer cells to chemotherapeutic drugs. These results suggest cell apoptosis plays an important role in the mechanism of MDR, and enhancing apoptosis might reverse MDR.

Glycogen Synthase Kinase 3β Inhibitor (2'Z,3'E)-6-Bromo-indirubin-3'-Oxime Enhances Drug Resistance to 5-Fluorouracil Chemotherapy in Colon Cancer Cells

Objective： To explore the effects and mechanism of glycogen synthase kinase 3β （GSK-313） inhibitor （2＇Z,3＇E）-6-bromo-indirubin-3＇-oxime （BIO） on drug resistance in colon cancer cells. Methods： The colon cancer SW480 and SW620 cells were treated with BIO, 5-fluorouracil （5-FU） and BIO/5-FU, separately. Cell cycle distribution, apoptosis level and efflux ability of rhodamine 123 （Rh123） were detected by flow cytometry. The protein expressions of P-glycoprotein （P-gp）, multidrug resistance protein 2 （MRP2）, thymidylate synthase （TS）, β-catenin, E2F-1 and βcl-2 were detected by Western blot. β-catenin and P-gp were stained with double immunofluorescence and observed under a confocal microscope. Results： BIO up-regulated β-catenin, P-gp, MRP2 and TS, enhanced the efflux ability of Rh123, decreased Bcl-2 protein and gave the opposite effect to E2F-1 protein in SW480 and SW620 ceils. Furthermore, BIO significantly inhibited cell apoptosis, increased S and G2/M phase cells, and reduced the cell apoptosis induced by 5-FU in SW480 cells, whereas the effects were slight or not obvious in SW620 cells. Conclusion： GSK-3β was involved in drug resistance regulation, and activation of β-catenin and inhibition of E2F-1 may be the most responsible for the enhancement of 5-FU chemotherapy resistance induced by GSK-β inhibitor β10 in colon cancer.

Establishment of organoid models based on a nested array chip for fast and reproducible drug testing in colorectal cancer therapy

The conventional microwell-based platform for construction of organoid models exhibits limitations in precision oncology applications because of low-speed growth and high variability. Here, we established organoid models on a nested array chip for fast and reproducible drug testing using 50% matrigel. First, we constructed mouse small intestinal and colonic organoid models. Compared with the conventional microwell-based platform, the mouse organoids on the chip showed accelerated growth and improved reproducibility due to the nested design of the chip. The design of the chip provides miniaturized and uniform shaping of the matrigel that allows the organoid to grow in a concentrated and controlled manner. Next, a patient-derived organoid(PDO) model from colorectal cancer tissues was successfully generated and characterized on the chip. Finally, the PDO models on the chip, from three patients, were implemented for high-throughput drug screening using nine treatment regimens. The drug sensitivity testing on the PDO models showed good quality control with a coefficient of variation under 10% and a Z’ factor of more than 0.7. More importantly, the drug responses on the chip recapitulate the heterogeneous response of individual patients, as well as showing a potential correlation with clinical outcomes. Therefore,the organoid model coupled with the nested array chip platform provides a fast and reproducible means for predicting drug responses to accelerate precise oncology.

Immunotherapy for recurrent hepatocellular carcinoma

Hepatocellular carcinoma(HCC)is presented frequently in late stages that are not amenable for curative treatment.Even for patients who can undergo resection for curative treatment of HCC,up to 50%recur.For patients who were not exposed to systemic therapy prior to recurrence,recurrence frequently cannot be subjected to curative therapy or local treatments.Such patients have several options of immunotherapy(IO).This includes programmed cell death protein 1(PD-1)and cytotoxic T-lymphocyte associated protein 4 treatment,combination of PD-1 and vascular endothelial growth factor inhibitor or single agent PD-1 therapy when all other options are deemed inappropriate.There are also investigational therapies in this area that explore either PD-1 and tyrosine kinase inhibitors or a novel agent in addition to PD-1 with vascular endothelial growth factor inhibitors.This minireview explored IO options for patients with recurrent HCC who were not exposed to systemic therapy at the initial diagnosis.We also discussed potential IO options for patients with recurrent HCC who were exposed to first-line therapy with curative intent at diagnosis.

肝癌靶向联合免疫治疗耐药后的二线治疗方案研究进展

近年来,靶向和免疫单药及联合治疗晚期肝癌的临床研究为一线用药方案选择提供了丰富的疗效与安全性证据。然而,对于肝癌二线治疗方案的选择,目前各项临床指南尚无统一意见,原因在于现有循证医学证据局限于索拉非尼失败后的选择,而对于新的一线方案,如靶向免疫联合治疗肝癌耐药后的二线治疗方案,依然缺乏高证据等级的临床试验结论。本文回顾了目前临床试验研究结果,根据药物作用的不同机制,对靶向免疫一线治疗耐药后肝癌二线治疗方案的研究进行了归纳,并系统总结近年研究进展。对于一线靶免联合治疗耐药的肝癌患者,靶向联合治疗、免疫双抗治疗均有望提高疗效、改善生存,未来还需更多前瞻性临床研究数据,为靶免联合治疗耐药的肝癌患者提供有效、安全的治疗方案。

垂体催乳素瘤的临床特点及诊治要点更新--基于《2022版ICCE/AME垂体催乳素瘤临床实践共识》解读

垂体催乳素瘤是一种由垂体催乳素细胞瘤过量合成和分泌催乳素引起的神经内分泌疾病,垂体催乳素瘤的规范化诊疗对于恢复并维持患者的正常垂体功能并提高其生活质量具有重要意义。2022年1月,《欧洲内分泌杂志》发布了国际临床内分泌学分会(ICCE)与意大利临床内分泌学家协会(AME)关于垂体催乳素瘤的临床实践最新共识申明——《2022版ICCE/AME垂体催乳素瘤临床实践共识》(简称2022版ICCE/AME新共识)。2022版ICCE/AME新共识立足最新循证医学证据,对于垂体催乳素瘤的临床诊治问题进行系统性阐述、分析和建议。本文围绕2022版ICCE/AME新共识关于垂体催乳素瘤的诊断、治疗、特殊人群、多巴胺激动剂抵抗及侵袭性疾病等诊治要点更新进行解读,希望有助于全科医生及内分泌专科医生对于垂体催乳素瘤的认识,为其临床实践的规范化诊疗提供参考。

载药微球联合TACE治疗原发性肝癌患者的效果观察

目的观察载药微球联合肝动脉化疗栓塞术(TACE)治疗原发性肝癌患者的效果。方法选取2021年6至12月收治的原发性肝癌患者60例,根据患者住院序号分为研究组和对照组各30例。研究组采用TACE联合CalliSpheres载药微球治疗,对照组接受传统TACE治疗。观察2组临床疗效、血常规、肝功能指标、甲胎蛋白(AFP)水平,并评估安全性。结果2组治疗后血红蛋白、血小板计数、白蛋白较治疗前降低,总胆红素、丙氨酸转氨酶、天冬氨酸转氨酶较治疗前升高(P<0.05);2组治疗后1周上述指标比较差异无统计学意义(P>0.05)。研究组治疗后AFP水平低于对照组(P<0.05)。研究组并发症及毒副反应发生率低于对照组(P<0.05)。研究组总有效率[86.67%(26/30)]高于对照组[63.33%(19/30)](P<0.05)。研究组术后1、2年的总体生存与局部控制率均高于对照组(P<0.05)。研究组满意度评分[(79.14±16.37)分]高于对照组[(64.35±17.22)分](P<0.01)。结论载药微球联合TACE治疗原发性肝癌效果较好,可有效延长患者生存时间,减轻并发症及毒副反应,提高生存质量。

Prevention of metastasis to liver by using 5-FU intraperitoneal chemotherapy in nude mice inoculated with human colonic cancer cells

AIMS Using a new approach of regional adjuvant chemotherapy to prevent cancer cells hepatic metasta- sis after radical surgery of large bowel cancer. METHODS A model of liver with metastasis of hu- man colonic cancer (HCC) cells in nude mice was used to observe the effect in prevention of metastasis of HCC cells inoculated via spleen applied with early postoper- ative intraperitoneal (IP) chemotherapy using large dose of 5-FU. RESULTS The incidence of metastasis to liver was decreased by 40%,the mean number of metastatic liv- er nodules in each animal was reduced by 50.89% and the mean survival times of each animal was prolonged by 48.21% by using 5-FU 40 mg/NS 40 ml/kg IP for two consecutive days as compared with the controls. CONCLUSIONS IP is a new and more effective re- gional adjuvant chemotheraputic approach in the pre- vention of liver metastasis HCC cells after radical surgery of large bowel cancer.

免疫细胞及炎症因子对晚期肺癌一线化疗效果的预测价值

【目的】探讨T淋巴细胞亚群、肿瘤浸润T淋巴细胞(Tils)及炎症因子对晚期肺癌一线化疗效果的预测价值。【方法】检测98例首诊TNM分期为Ⅲ/Ⅳ期的非小细胞肺腺癌患者的血清白细胞介素1α(IL-1α)、IL-6、IL-17、γ-干扰素(INF-γ)水平及T淋巴细胞亚群CD4^(+)T、CD8^(+)T、调节性T细胞、CD57^(+)细胞、Granzyme B^(+)细胞、CD45RO^(+)细胞比例;所有患者均接受紫杉醇注射液+顺铂化疗,治疗4个周期后评定疗效,并据此分为有效组和无效组,分析化疗无效的影响因素及预测疗效的有效标志物。【结果】化疗后,98例患者中69例化疗有效,29例无效。无效组患者淋巴结转移占比及调节性T细胞、IL-1α表达水平均高于有效组(P<0.05),CD57^(+)细胞、CD45RO^(+)细胞比例均低于有效组(P<0.05)。多因素逐步Logistic回归分析结果显示,调节性T细胞、IL-1α水平高是肺癌患者化疗无效的危险因素(P<0.05),CD57^(+)细胞、CD45RO^(+)细胞比例高是保护因素(P<0.05)。受试者工作特征(ROC)曲线分析显示,调节性T细胞、CD57^(+)细胞、CD45RO^(+)细胞、IL-1α水平预测化疗效果的灵敏度分别为82.76%、86.21%、89.66%、93.10%,四者联合的灵敏度、特异度和曲线下面积(AUC)分别为82.76%、97.10%、0.957。【结论】T淋巴细胞亚群、Tils及炎症因子水平与晚期肺癌治疗效果密切相关,其可作为预测疗效的敏感指标。

驱动基因阴性非小细胞肺癌二线治疗中国专家共识

对于驱动基因阴性的晚期非小细胞肺癌(non-small cell lung cancer,NSCLC)患者而言,既往化疗一直都是标准治疗选择,而免疫检查点抑制剂(immune checkpoint inhibitors,ICIs)的加入为这部分患者提供了新的治疗选择。目前一线治疗可以选择化疗、抗血管生成药物或免疫治疗。尽管初始治疗能获得一定的有效率,但仍不可避免地会出现疾病进展或治疗失败,二线及以上治疗疗效差,患者预后不佳,临床上需要更多有效的二线治疗药物。中国临床肿瘤学会非小细胞肺癌专家委员会组织呼吸科、肿瘤科、病理科专家对驱动基因阴性人群临床研究证据进行了深入探讨,根据专家组讨论后广泛认可的临床诊疗经验,对驱动基因阴性NSCLC患者二线治疗制定了统一的专家共识,可作为中国临床医师选择驱动基因阴性NSCLC二线治疗的指导依据。

揿针联合穴位贴敷治疗对胃肠道肿瘤化疗患者胃肠道反应及睡眠质量的影响

目的 探讨胃肠道肿瘤化疗患者应用揿针联合穴位贴敷治疗对胃肠道反应及睡眠质量的影响效果。方法 选择河南省肿瘤医院中西结合科住院的胃肠道肿瘤化疗患者96例(2021年10月至2023年6月入组)患者研究,参照计算机数字表法分为2组,每组48例,包括对照组(穴位贴敷治疗)与试验组(揿针联合穴位贴敷治疗)。比较干预前后2组患者胃肠道反应及睡眠质量的变化。结果 治疗前,2组恶心程度评分、呕吐程度评分、食欲情况评分差异无统计学意义(P>0.05),治疗5 d、治疗7 d 2组均有改善,且试验组恶心程度评分、呕吐程度评分、食欲情况评分更低,差异有统计学意义(P<0.05);治疗7 d,试验组恶心频率与呕吐频率均低于对照组(P<0.05);治疗前,2组睡眠质量差异无统计学意义(P>0.05),治疗7 d试验组睡眠质量PSQI评分低于对照组(P<0.05);试验组总并发症发生率比对照组低(P<0.05)。结论 胃肠道肿瘤化疗患者应用揿针联合穴位贴敷治疗可以更好地减轻化疗所致的胃肠道反应,改善食欲及睡眠质量,值得应用。

不同粒径载药微球序贯TACE用于治疗巨块型原发性肝癌伴肝静脉或门静脉癌栓

原发性肝癌(primary liver cancer,PLC)是我国最常见的消化系统恶性肿瘤,恶性程度高、预后差;其中约20%为巨块型,多伴明显坏死且包膜不完整,易侵犯脉管系统,常合并静脉癌栓或远隔转移等[1-2]。TACE是治疗不可切除PLC伴门静脉癌栓的主要方法。近年来,载药微球TACE(drug-eluting bead TACE,DEB-TACE)临床应用越来越广泛,且用于治疗PLC效果满意[3],但以DEB-TACE治疗PLC合并静脉癌栓的研究尚少,且单一粒径载药微球用于治疗具有不同肿瘤学特征的病灶存在不足。本研究采用不同粒径载药微球序贯TACE治疗6例巨块型PLC伴肝静脉或门静脉癌栓,以观察其价值。

胰腺癌类器官模型的构建及其对化疗药物的敏感性试验

目的建立及鉴定患者来源的类器官模型,并利用该模型进行化疗药物敏感性检测。方法利用已确诊胰腺癌的2例女性患者的手术标本获取肿瘤组织消化后获取胰腺癌细胞,利用基质胶接种于培养皿中进行三维培养;制备石蜡切片并进行苏木精-伊红(HE)染色和免疫组化染色,通过与亲本肿瘤组织对比,检测其能否保留体内肿瘤的组织病理学特征;利用不同浓度的7种化疗药物处理胰腺癌类器官,使用Cell Titer-Glo®3D试剂测定细胞活力,分析药敏结果。结果成功建立了2例患者来源的胰腺癌类器官,HE染色和免疫组化染色结果显示胰腺癌类器官与其来源的患者肿瘤在组织病理学特征上一致;2例胰腺癌类器官均对吉西他滨单药、奥沙利铂与SN38+氟尿嘧啶联用更为敏感,患者1较患者2敏感性更高,来自不同患者的类器官对药物反应存在个体差异。结论本研究成功构建的胰腺癌类器官模型能够反映亲本胰腺肿瘤的组织学分型,并能够进行体外化疗药物敏感性试验,有望为患者临床用药提供参考。

心血管磁共振成像评估肿瘤治疗相关心血管损伤的应用进展

随着肿瘤治疗技术的发展,肿瘤患者的生存率得到大幅改善。但肿瘤治疗可能伴有潜在的心血管毒性作用,导致心血管疾病的发病率和死亡率增加,最终肿瘤患者可能并非死于肿瘤,而死于肿瘤治疗,早期识别心血管损伤并制订相关策略改善这种副作用至关重要。心血管磁共振成像可实现对心脏结构、心脏功能、心肌组织特征及心脏大血管血流动力学的“一站式”评价,在评价心血管损伤,尤其是早期损伤方面具有重要作用。本综述回顾各种心血管磁共振成像方法在评估肿瘤治疗相关心血管损伤中的应用和进展。

N-钙黏蛋白与Wnt/β-catenin通路在骨髓间充质干细胞与白血病干细胞中的耐药机制研究

【目的】探讨N-钙黏蛋白(N-cadherin)与Wnt/β-catenin通路在骨髓间充质干细胞(MSC)与白血病干细胞(LSC)中的耐药机制研究。【方法】65例急性髓系白血病(AML)患者,完全缓解41例,未缓解24例,比较两组CD34+CD38-干细胞中N-cadherin的表达差异。根据不同MSC或去甲氧柔红霉素(IDA)处理下将CD34+CD38-Kg1α细胞分为6组,检测细胞增殖和凋亡情况及N-cadherin、β-catenin水平,检测细胞黏附及抗凋亡能力。【结果】未缓解患者的N-cadherin表达水平高于完全缓解者(P<0.01);LSC+IDA组(B组)细胞凋亡率显著高于LSC与MSC直接共培养+IDA组(D组)(P<0.05);在IDA浓度为100 nmol/L、200 nmol/L时,B组的细胞增殖抑制率显著高于D组(P<0.05);B组的集落形成率显著低于D组(P<0.05)。Western blot结果显示:N-cadherin及β-catenin在MSC直接接触培养条件下表达高于单独培养或分离培养;LSC在MSC共培养条件下,N-cadherin及β-catenin表达水平上升,伴随细胞核内β-catenin水平上升。【结论】骨髓微环境的MSC可以通过N-cadherin与LSC的黏附作用支持LSC的增殖能力,同时促进LSC Wnt/β-catenin通路的激活,对化疗药物产生耐药性。

中药活性成分调控糖代谢抗胆管癌的分子机制

胆管癌是一种高度异质性的肿瘤,其发病隐匿、病情凶险、恶性程度高、预后极差。葡萄糖是胆管癌增殖和转移的主要能量来源,胆管癌细胞在快速增殖过程中其糖代谢途径会被重新编辑,产生大量能量以满足自身需求。中医药在胆管癌治疗中具有独特优势,中药活性成分已被证明可以通过调控糖代谢抑制胆管癌的发生和发展。本文对胆管癌中的糖代谢特点和中药活性成分调控糖代谢抗胆管癌进行综述,为胆管癌的治疗提供新思路。

基于妇科肿瘤耐药治疗中工程化外泌体的应用研究进展

妇科恶性肿瘤严重威胁着女性健康,在女性各类疾病中其发病率和死亡率均位居前列,关键原因在于传统化疗对复发、耐药患者的疗效欠佳。近年来,探讨肿瘤细胞化疗的耐药机制,开发新型药物逆转耐药已成为妇科肿瘤研究者关注的热点。外泌体(exosome)是一种来源于细胞内溶酶体微粒内陷的多囊泡体,具有低免疫原性、先天靶向性及获得靶向性和高传递效率等生物学特性。因此,外泌体可作为一种理想的、天然的纳米递送药物载体,不仅可以降低肿瘤细胞对化疗药物的耐药性,提高药物治疗效果,还可以减少化疗药物对全身的毒副反应。本文就外泌体作为妇科肿瘤耐药治疗中药物载体的研究进展进行综述,以期对妇科肿瘤的临床治疗提供帮助。

ER阳性乳腺癌治疗靶点的数据筛选及生物信息学分析

目的 基于成簇规律间隔短回文重复序列(CRISPR)文库数据,分析和预测雌激素受体(ER)阳性乳腺癌新型治疗靶点。方法 检索CRISPR文库测序数据、表达谱芯片数据,比较不同组ER阳性乳腺癌细胞与他莫昔芬耐药相关的缺失靶基因和差异基因;对测序数据、表达谱芯片数据取交集;使用STRING数据库分析潜在他莫昔芬耐药基因的蛋白互作网络(PPI);使用注释、可视化和综合发现数据库注释基因功能和信号通路;使用基因集富集分析(GSEA)软件分析核心基因集;对3个核心基因集和潜在他莫昔芬耐药基因取交集;使用基因表达谱交互式分析数据库绘制生存曲线。采用qRT-PCR和免疫组化实验测定ER阳性乳腺癌患者的跨膜糖蛋白(BSG)表达水平。结果 CRISPR文库测序数据、芯片表达谱数据结合分析,筛出61个潜在他莫昔芬耐药基因;PPI分析发现,其中的30个基因间存在显著相互作用;30个基因与3个GSEA核心基因集的交集分析发现,BSG是唯一基因。生存分析显示BSG高表达与ER阳性乳腺癌患者较短的无病生存期显著相关(P<0.05)。qRT-PCR、免疫组化实验结果证实BSG在ER阳性乳腺癌患者中呈显著高表达。结论 基于CRISPR文库预测BSG是ER阳性乳腺癌患者新型治疗靶点,结合生物功能实验和临床特征可更好验证预测结果。