Objective To review the relationship between the expression levels of bcl-2, bax and bad gene and other biological factors of breast cancer in the growth and development of breast cancer. Methods Related literatures were summarized and reviewed. Results The expression level change of antiapoptosis gene bcl-2 was still under research and the expression levels of apoptosis gene bax and bad were down-regulated progressively in the evolution from benign breast tissue to breast cancer tissue. The expression level of bcl-2 had positive correlation with some positive factors in breast cancer such as estrogen receptor （ER） and progesterone receptor (PR), while it had negative correlation with some negative factors such as p53, EGFR, c-erbB-2 and lymph node metastasis. The levels of ER, PR and the expression level of p53 of breast cancer had no relationship with the expression level of bax. Up to now there was no report about the relationship between the expression level of bad and other biological factors of breast cancer. Conclusion The role of altered expression level of bcl-2, in the treatment and prognosis of breast cancer is still controversial, and the relationship between the expression of bad and the prognosis of breast cancer is still unknown, but expression level of bax is correlated positively with the prognosis of breast cancer. Research on these genes can provide us some new index to evaluate the prognosis of breast cancer and new ideas on treatment of breast cancer including gene therapy.
【Abstract】Objective To investigate the effect of donor blood transfusion on inducing pancreatic allograft tolerance in outbred rat model. Methods Wistar male rats were used as blood and pancreas donor, and diabetic recipients. One ml of donor blood injected into abdomen of diabetic recipients on the day of transplantation and azathioprine given 2 days pretransplant and continued for three days. Results Pancreas allograft survival was significantly prolonged (28 to 112 days, media survival time 64.2 days). One ml of donor blood alone injected into the abdomen and azathioprine given alone 2 days pretransplant did not improve allograft survival (media survival time 9.8 vs 10.2 days). Conclusion Donor blood injected on the day of transplantation and a 3 days course of azathioprine started 2 days pretransplant have b synergism in inducing long term graft survival in this rat model.
【摘要】 目的 观察手术前后乳腺癌患者体内辅助性T淋巴细胞（helper T lymphocyte，Th） 1、2型细胞因子的表达及意义。 方法 2009年11月－2010年12月，采用酶联免疫吸附试验检测40例乳腺癌患者（乳腺癌组）手术前、后和15例健康妇女（正常对照组）外周血单个核细胞培养上清液中Thl型细胞因子[白细胞介素（interleukin，IL）-2、干扰素（interferon，IFN）-γ]和Th2型细胞因子（IL-4、IL-6）表达水平。 结果 乳腺癌组术前外周血IL-2、IFN-γ、IL-4和IL-6的检测结果在分别为（326.5±67.4）、（288.5±35.6）、（41.2±10.8）、（526.1±136.4） ng/L，手术后分别为（958.1±284.7）、（559.6±106.9）、（26.1± 8.7）、（395.6±125.9） ng/L；在正常对照组分别为（1 498.0±325.9）、（784.6±126.3）、（16.6± 3.7）、（297.4± 83.7） ng/L。与正常对照组相比，术前乳腺癌患者外周血Th1型细胞因子表达降低，Th2型细胞因子表达升高，差异有统计学意义（Plt;0.05）；与术前相比，乳腺癌患者术后Thl型细胞因子表达升高，Th2型细胞因子表达降低，差异有统计学意义（Plt;0.05）。 结论 ①乳腺癌患者Th细胞呈现Th1抑制和Th2极化状态，细胞免疫受抑制。②手术切除肿瘤可在早期一定程度上逆转Th1/Th2的失衡状态，改善机体免疫状态，对预后产生积极作用。【Abstract】 Objective To investigate the expression and significance of helper T lymphocyte(Th) 1 and 2 of breast cancer patients in vivo before and after operation. Methods From November 2009 to December 2010, Thl-type cytokines [interleukin-2 (IL-2), interferon-γ (IFN-γ)] and Th2-type cytokines (IL-4, IL-6) expression in supernatants of peripheral blood mononuclear cells (PBMC) were detected by enzyme-linked immunosorbent assay (ELISA) in 40 breast cancer patients before and after surgery (Breast cancer group) and 15 healthy women (Control group). Results The test results of IL-2, IFN-γ, IL-4 and IL-6 in peripheral blood for patients of breast cancer group were (326.5±67.4), (288.5±35.6), (41.2±10.8), and (526.1±136.4) ng/L before surgery, and (958.1±284.7), (559.6±106.9), (26.1±8.7), and (395.6±125.9) ng/L after surgery. Those results for patients in the normal control group were (1498.0±325.9), (784.6±126.3), (16.6±3.7), and (297.4±83.7) ng/L respectively. Compared with the control group, the expression of peripheral blood Th1-type cytokines in pre-operative breast cancer patients was significantly lower, while expression of Th2-type cytokines was significantly higher (Plt;0.05); Compared with the pre-operative data, the expression of peripheral blood Th1-type cytokines in post-operative breast cancer patients was significantly higher, and the expression of Th2-type cytokines was significantly lower (Plt;0.05). Conclusions ①For Th cells in breast cancer patients, there is a tendency of Th1 suppression and Th2 polarization, and cellular immunity is suppressed. ②To some extent, surgical removal of tumors can reverse the Th1/Th2 imbalance early, improve the immune status, and has a positive effect on the prognosis.
【Abstract】ObjectiveTo review the relationship between T helper cell 1/T helper cell 2 （Th1/Th2） shift and tumor recurrence. MethodsLiteratures on Th1/Th2 shift and tumor recurrence were collected and reviewed. ResultsTh1/Th2 shift can be detected in the host after therapy of the tumor. Tumor cells escape from host immune surveillance by altering Th1/Th2, which could lead to tumor recurrence. ConclusionTh1/Th2 shift is related to tumor recurrence after therapy. Impelling the reverse of Th2 to Th1 and renewing the balance of T helper cells come out to be a new way for tumor therapy.
目的 探讨捆绑式胰肠吻合术的改良方法。方法 对8例胰十二指肠切除术患者行捆绑式胰肠吻合术时采用带血管蒂的大网膜包绕空肠浆肌鞘，以达捆绑之目的。8例中行桥袢空肠造瘘5例，胆总管造口T管引流3例，并观察其术后5 d内每天平均引流液量。结果 8例患者均治愈出院，无胰瘘、胆瘘发生； 5 d内每天平均引流液量除第1天胆总管造口低于空肠造瘘外，其余4 d每天平均引流液量均明显高于空肠造瘘； 1例空肠造瘘者术后第8天继发胰腺残端出血，经电灼后止血。结论 带血管蒂的大网膜包绕空肠浆肌鞘完全可以代替粗线环绕空肠结扎，并使整个空肠浆肌鞘与胰腺紧贴，更利于胰肠间愈合； 空肠造瘘或胆总管造口对桥袢空肠均有减压引流的作用，但T管引流更简单、有效、省时。
目的了解甲状腺原发性恶性淋巴瘤的特点，探讨其诊治方法。方法回顾分析我院收治的7例甲状腺原发性恶性淋巴瘤患者的临床表现，血清抗甲状腺球蛋白抗体（TGA）,抗甲状腺微粒体抗体（TMA），B超，核素扫描，病理组织学及免疫组织化学染色特点。结果7例患者均行手术切除和术后化疗，病理石蜡切片证实为甲状腺原发性恶性淋巴瘤，免疫组化染色显示白细胞共同抗原阳性，细胞角蛋白阴性，支持本诊断。治疗后随访4个月～11年患者均生存。结论病理检查是明确诊断的可靠依据，手术应尽可能切除肿瘤，术后予以化疗，治疗效果较为满意。
【Abstract】ObjectiveTo study the expressions of P-gp, nm23 and p53 in primary breast cancer tissues and to evaluate the prediction significance in recurrence of the primary breast cancer. MethodsExpressions of P-gp, nm23 and p53 in 57 benign and malignant breast paraffin-embedded specimens, the difference of the rate and intensity of positive reaction of P-gp,nm23 and p53 were checked by immunohistochemical staining.ResultsThe positive rate of nm23 significantly increased in benign breast tissues compared with the tissues of recurrence of breast cancer. The positive intensity of nm23 was significantly decreased in the tissues of recurrence of breast cancer compared with the tissues of primary breast cancer. The positive rate of p53 was significantly increased in malignant breast tissues compared with benign breast tissues. The positive intensity of p53 was significantly increased in the tissues of recurrence of breast cancer compared with the tissues of primary breast cancer. There was no difference in the positive rate of P-gp in the tissue of recurrence and primary of breast cancer compared with benign breast tumor. But the positive intensity of P-gp was significantly decreased in the tissues of recurrence and primary of breast cancer compared with benign breast tumor. ConclusionThe expression of p53 may indicate the proliferating activity of carcinoma cell. The positive intensity of expression of p53 and nm23 is valuable in prediction of the recurrence of primary breast cancer.