藏药药浴对类风湿性关节炎的免疫调整作用的研究

本文研究了藏药浴前后类风湿性关节炎(RA)的免疫功能变化。RA患者藏药浴前类风湿因子(RF)滴度,免疫球蛋白(Ig)G.M.A及CD_4细胞水平较高,但CD_8细胞水平却显著低下。临床资料表明,藏药浴对RA的有效率达94.3％。为了阐明藏药浴治疗RA的机理,我们测定了藏药浴前后的RF滴度;Ig水平;补体C_3;_3H—TdR掺入淋巴细胞转化及CD_8.CD_4.CD_8细胞水平。结果表明:藏药浴后RF滴度下降和转阴者共达70.6%;Ig水平显著降低;CD_4细胞数下降而CD_8细胞水平上升;_3H—TdR淋巴细胞转化刺激指数(SI)明显下降。这提示,RA患者未经藏药浴处理时,其淋巴细胞培养上清液中可能有高浓度的白细胞介素—2促进因子(IL_2—EF)。我们认为藏药浴可通过提高RA的CD_8细胞和降低CD_4细胞水平而达到对该病的免疫调整作用。     

Prostaglandin E2 as an immunomodulating factor released in vitro by human glioma cells

Summary Cultured human glioma cells were found to produce soluble factors that can modulate the in vitro proliferative response of purified T lymphocytes stimulated by phytohemagglutinin (PHA). Neoplastic tissue was removed during surgery for brain glial tumors and cultured in vitro. The glial nature of the neoplastic cells was verified by means of anti-glial fibrillary acidic protein immunohistochemical staining. Serum-free supernatants from these cultures proved capable of suppressing in vitro proliferation of PHA-stimulated T lymphocytes. Suppression was reduced when indomethacin or aspirin was added to the culture medium. Thin-layer chromatography revealed the presence of prostaglandins and other arachidonic acid derivatives in the supernatants. The radioimmunoassay used to quantify the prostaglandin E₂ (PGE₂) in the supernatants showed detectable amounts of PGE₂, which disappeared after the cultures had been treated with anti-inflammatory drugs. These data support the hypothesis that tumoral glial cells can play a role in the host immune response in the central nervous system, namely by producing soluble factors.Supported by the Foundation Pasteur-Cenci-Bolognetti and Italian MPI40% grant 1984     

人工培养蛹虫草多糖的抗炎及免疫作用研究

目的：研究人工培养蛹虫草多糖（CMPS）的抗炎及免疫作用。方法：检测CMPS对巴豆油所致小鼠耳肿胀、醋酸所致小鼠毛细血管通透性增高的影响；对免疫器官重量、小鼠碳粒廓清功能、SRBC致敏小鼠溶血素生成、DNCB所致迟发型超敏反应等免疫作用的影响。结果：CMPS对小鼠耳肿胀及毛细血管通透性增高均有抑制作用；抑制小鼠溶血素的生成；对免疫器官重量、碳粒廓清功能、DTH等免疫作用无明显影响。结论：CMPS具有抗炎作用，对细胞免疫没有明显的影响。     

An immunomodulating dipeptide, SCV-07, is a potential therapeutic for recurrent genital herpes simplex virus type 2 (HSV-2)

Herpes simplex virus type 2 (HSV-2) infections produce a recurrent disease state associated with susceptibility to other pathogens, including human immunodeficiency virus (HIV), and cannot be cured by current therapeutic treatments. The HSV-2 epidemic must therefore be addressed by therapeutic strategies that reduce recurrent lesions and ideally lack the possibility for development of drug resistance. To this end, the therapeutic potential of SCV-07 (gamma-d-glutamyl-l-tryptophan), a synthetic dipeptide with potent immunomodulatory and antimicrobial activity, was studied in the guinea pig model of recurrent genital HSV-2. Initial evaluations showed that when delivered orally, but not subcutaneously, SCV-07 significantly reduced recurrent lesions. Oral dose ranging studies indicated that, of the tested amounts, 5mug/kg was optimal when delivered after an overnight fast. Interestingly, fasting induced a significant increase in recurrent lesions in vehicle-treated guinea pigs relative to non-fasted animals. Despite this increase, SCV-07 significantly reduced lesion formation in treated animals but showed no durability following cessation of treatment. In fact, this regimen of SCV-07 treatment produced statistically indistinguishable outcomes compared with those provided by topical aciclovir. These data illustrate that SCV-07 may provide an easily administered alternative or supplemental treatment option for genital HSV-2 recurrent disease.     

Brazilin augments cellular immunity in multiple low dose streptozotocin (MLD-STZ) induced type I diabetic mice

Brazilin, an active principle of Caesalprenia sappan, was examined for its immunopotentiating effects in multiple low dose streptozotocin (MLD-STZ) induced type diabetic mice. Brazilin was intraperitoneally administered for 5 consecutive days to MLD-STZ induced type I diabetic mice. Delayed type hypersensitivity, Con A-induced proliferation of splenocytes and mixed lymphocyte reaction, which had been decreased in diabetic mice, were significantly recovered by the administration of brazilin. Brazilin increased IL-2 production without affecting suppressor cell activity. Con A-induced and IL-2-induced expression of high affinity IL-2 receptors were also enhanced by brazilin. These results indicate that brazilin augments cellular immune responses, which are suppressed in the MLD-STZ induced type I diabetic mice, by increasing IL-2 production and responsiveness of immune cells to IL-2.     

抗病毒—免疫调节剂异丙肌苷的合成

异丙肌苷为一种新的免疫调节剂,用于治疗某些病毒性疾病.本文报道其一种简便的合成方法。     

2013~2017年杭州市12家医院肺癌患者免疫增强药物应用分析

摘 要 目的：了解2013~2017年杭州市12家医院肺癌患者免疫增强药物的用药特点和趋势,为其合理用药提供参考。方法：抽取2013~2017年杭州市12家医院肺癌患者的全部用药数据,对其使用免疫增强药物的品规、销售金额、用药频度（DDDs）及限定日费用（DDC）进行排序,回顾性分析其用药特点。结果：2013~2017年杭州市12家医院肺癌患者免疫增强药物的用药金额逐年上升,其总金额占比也呈缓慢升高趋势。5年内销售金额最高的药物为胸腺法新,乌苯美司占据DDDs排名和序号比首位,注射用A群链球菌则高居DDC榜首。结论：杭州市12家医院肺癌患者使用免疫增强药物品种基本合理,服用方便、经济有效的免疫增强药物在临床使用中占优势。     

肝炎颗粒对肝损伤的保护及免疫促进作用研究

目的:探讨肝炎颗粒对肝损伤的保护作用及免疫促进作用。方法:设对照组和药物组,采用四氯化碳(CCl4)和硫代乙酰胺(TAA)灌胃造成实验动物肝损伤,检测各组动物血清谷丙转氨酶(ALT)、谷草转氨酶(AST)、碱性磷酸酶(ALP)水平,观察肝组织病理学变化;检验各组动物巨噬细胞的吞噬作用和血清溶血素水平。结果:肝炎颗粒能降低肝损伤所致实验动物血清ALT、AST、ALP升高的水平,其中高剂量组有显著性差异(P<0.05),肝组织损伤明显缓解;肝炎颗粒还能提高小鼠碳粒廓清指数和血清溶血素水平(P<0.05,P<0.01)。结论:肝炎颗粒对肝损伤有较好的保护作用及免疫促进作用。     

玉米种子粗多糖的结构及其免疫调节作用研究

目的 研究玉米粗多糖的主要糖苷键结构及其对小鼠免疫调节功能的影响.方法 用热水抽提法和沉淀复溶法提取、分离、纯化玉米粗多糖,根据玉米粗多糖的理化性质及波谱数据鉴定其结构:采用免疫药理学实验评价玉米粗多糖的生物活性.结果 分离得到的玉米粗多糖具有与米糠多糖一致的化学结构,为一种以α-1,4和α-1,6糖苷键形式结合的葡聚糖:玉米粗多糖多项免疫药理学指标表明其具有显著的生物活性.结论 首次从玉米种子中分离鉴定了玉米粗多糖,其对小鼠免疫功能具有显著的调节作用.