香菇多糖对人子宫内膜癌细胞HEC-1B增殖的影响

目的观察香菇多糖对HEC-1B细胞增殖的影响,并对其机制进行初步探讨。方法HEC-1B细胞分为对照组和香菇多糖（高、中、低剂量）组,加香菇多糖高、中、低剂量于培养液中,使其终浓度分别为0.25g/L、0.5g/L、1.0g/L。采用MTT法观测香菇多糖对HEC-1B细胞增值的影响;分别采用realtime PCR、免疫组织化学方法检测肿瘤组织中Bax、Bcl-2、PCNA mRNA蛋白含量。结果香菇多糖能抑制HEC-1B细胞的增殖,其低、中、高剂量对HEC-1B细胞的增殖抑制率分别为20.46%、35.69%和40.18%。香菇多糖能明显升高HEC-1B细胞中Bax mRNA蛋白含量（P〈0.05或P〈0.01）,明显降低HEC-1B细胞中Bcl-2、PCNA mRNA蛋白含量（P〈0.05）。结论香菇多糖能抑制HEC-1B细胞的增值,其机制可能与升高Bax表达,降低Bcl-2、PCNA表达有关。     

顺铂联合香菇多糖胸腔内注射对老年肺癌伴胸腔积液的疗效分析

目的 观察顺铂联合香菇多糖胸腔内注射对老年肺癌伴胸腔积液的疗效.方法 选择老年肺癌性胸腔积液患者80例,随机分成观察组（顺铂联合香菇多糖）和对照组（顺铂）各40例.在经皮胸腔内置管引流尽胸液之后,进行胸腔内注药,观察疗效.结果 观察组和对照组的总有效率分别为92.50%和62.50%,生活质量改善率分别为87.50%和65.00%,P〈0.05.结论 顺铂联合香菇多糖胸腔内注射对老年肺癌伴胸腔积液具有较好疗效,不良反应少.     

The ability of polymorphonuclear leukocytes to produce active oxygen in a model of peritonitis in rats

To elucidate the mechanism of enhancing survival in peritonitis rats treated with lentinan, a fully purified beta-1,3-glucan, we measured the active oxygen-producing ability of polymorphonuclear leukocytes (PMNs). Four groups of rats (group I, fecal peritonitis control; II, rats receiving 3 mg/kg lentinan intraperitoneally at the same time as peritonitis induction; III, rats receiving 1 mg/kg gentamicin intramuscularly; and IV, rats receiving combined lentinan-gentamicin treatment) were used. The survival period was significantly longer in group IV than in the other three groups. The ability of ascitic PMNs to produce active oxygen (superoxide, H₂O₂, myeloperoxidase) was significantly more than that of blood PMNs in each group at 20 h after peritonitis induction. The increase in active oxygen production in ascitic PMNs was higher in group IV compared with that in the other three groups. The concentration of lentinan in the blood was high at 24 h after administering lentinan intraperitoneally to both the normal and peritonitis rats. In the in vitro study, the superoxide production in normal rat blood PMNs was significantly higher in the presence of cytokines (IL-1 beta, IL-6, TNF-alpha) without dose-dependence but was not higher for the lentinan group than in the control. This study therefore suggests that lentinan activated the peritoneal macrophage secretory activity and produced cytokines which thus enhanced the ability of PMNs to produce active oxygen, which possesses a bactericidal ability in PMNs.     

香菇多糖对恶性肿瘤的治疗作用

目的：评价国产香菇多糖在增强免疫及肿瘤治疗方面的作用。方法：采用随机双盲法，将４２例恶性肿瘤病人（男性３４例，女性８例，平均年龄５６±ｓ１３ａ）分为２组：Ａ组２０例，用化学治疗加香菇多糖１ｍｇ，２次／ｗｋ，６￣８ｗｋ为一个疗程；Ｂ组２２例仅用化学治疗，对２组治疗效果及免疫功能进行比较。结果：治疗后Ａ组天然杀伤细胞（ＮＫ细胞）活性、Ｔ细胞亚群中Ｔ４／Ｔ８比值明显高于Ｂ组，Ａ组有效率６０％，明显高于Ｂ组的有效率３２％，Ｐ＜０．０５。２组毒副作用相似。结论：应用香菇多糖可提高恶性肿瘤病人细胞免疫功能及化学治疗效果。     

香菇多糖抗肿瘤治疗临床应用进展

香菇多糖是一种具有抑制肿瘤生长并提高免疫功能的生物调节剂,大量动物实验和临床研究报道表明其具有调节免疫功能及抑制肿瘤生长的作用。目前,香菇多糖在临床抗肿瘤方面的应用较为广泛,主要用于增强放化疗疗效、降低肿瘤治疗相关不良反应、提高免疫效应和改善患者生存质量等方面。因此,文章综述了香菇多糖活性成分在临床应用等方面的最新研究进展,为香菇多糖辅助恶性肿瘤治疗提供新的思路。     

香菇多糖对多西他赛联合顺铂治疗Ⅳ期宫颈癌疗效的影响

目的：研究香菇多糖对多西他赛联合顺铂（DP方案）治疗Ⅳ期宫颈癌疗效的影响。方法将Ⅳ期宫颈癌患者分为DP方案治疗组（CON组）和香菇多糖联合DP方案治疗组（LDP组）,比较两组患者在疗效、不良反应、T淋巴细胞亚群和生存质量方面的差异。结果 LDP组与CON组在治疗有效率方面无明显差异,但LDP组Ⅲ～Ⅳ级和I～Ⅳ级胃肠道反应、骨髓抑制和肾功能损伤的发生率均显著低于CON组（P﹤0.05）。CON组和LDP组化疗前的CD3+、CD4+、CD8+、CD4+/CD8+、生理状况、社会/家庭状况、情感状况、功能状况和附加关注评分均无明显差异（P﹥0.05）,LDP组化疗后的CD3+、CD4+、CD8+、社会/家庭状况和功能状况评分均显著高于CON组（P﹤0.05）,而生理状况、情感状况和附加关注评分均显著低于CON组（P﹤0.05）。结论香菇多糖可显著改善Ⅳ期宫颈癌患者的T淋巴细胞免疫状况,提高DP方案的疗效并减轻其不良反应。     

热疗联合胸腔注射香菇多糖粉针剂治疗肺癌癌性胸水30例临床观察

目的 探讨热疗联合胸腔注射香菇多糖粉针剂治疗肺癌癌性胸水的疗效及机制。     

Meta Analysis of Lentinan Injection plus Cisplatin in Treatment of Malignant Pleural Effusion

Objective To evaluate the efficacy and safety of lentinan injection plus cisplatin(LIC) in the treatment of malignant pleural effusion(MPE).Methods We searched the database of Cochrane Library,PubMed,EMBASE, ISI Web of Knowledge,Chinese Biomedical Literature Database,Chinese Scientific Journals Full-text Database, Chinese Journal Full-text,and Google Scholar,etc.,up to February 28th,2011 to identify randomized controlled trials(RCTs) about lentinan injection(LI) for MPE,evaluate the quality of the included studies,and analyze the data by Cochrane Collaboration’s RevMan5.0 software.Results Twenty-nine RCTs involving 1831 patients were included.Meta analysis results suggested that there were some differences when comparing LIC with control groups suffering from MPE,for LIC could improve the near-term curative effect and the quality of life to some extent. Besides,compared with chemotherapy alone,LI plus chemotherapy had an advantage in relieving adverse reactions, such as gastrointestinal reactions,myelosuppression,chest pain,and general malaise.Conclusion The current evidence indicates that LI may have adjuvant therapeutic effects for MPE.     

糖皮质激素、香菇多糖对哮喘气道重塑大鼠肺组织c-Jun氨基末端激酶表达的影响

 目的 研究糖皮质激素、香菇多糖（lentinan,LNT）对哮喘气道重塑大鼠肺组织c-Jun氨基末端激酶（JNK）表达的影响。方法 SD大鼠随机分为正常对照组、哮喘组、布地奈德（BUD）组、地塞米松（DXM）组、LNT组,以卵白蛋白致敏和激发复制哮喘气道重塑模型,干预组分别于每次雾化激发前以BUD雾化或DXM、LNT腹腔注射干预,正常对照组以生理盐水代替卵清白蛋白致敏和激发。留取支气管肺泡灌洗液（BALF）进行细胞分类计数。采用图像分析技术测定支气管壁厚度（Wat）和平滑肌厚度（Wam）,免疫组化（IHC）检测肺内磷酸化JNK（p-JNK）蛋白表达,WESTERN BLOT检测肺匀浆p-JNK表达,直线相关分析肺组织p-JNK蛋白平均吸光度（A_m）与BALF中嗜酸性粒细胞百分比（EOS%）的相关性以及Wat、Wam与p-JNK蛋白的相关性。 结果 哮喘组BALF中EOS%显著高于正常对照组（P＜0.01）,各干预组EOS%均显著低于哮喘组（均P＜0.01）,但仍高于正常对照组（P＜0.05或P＜0.01）;哮喘组气道壁厚度较正常对照组显著增加,各干预组可抑制气道壁增厚;BUD、DXM组Wam比较,无显著性差异（P＞0.05）,二者均低于LNT组（均P＜0.01）;BUD、LNT组Wat比较无显著性差异（P＞0.05）,但均比DXM组高（P＜0.05或P＜0.01）;IHC显示p-JNK蛋白主要表达于支气管上皮细胞、平滑肌细胞及散在炎性细胞的胞浆和胞核;IHC、WESTERN BLOT检测均显示哮喘组肺组织p-JNK蛋白表达增高;BUD、DXM、LNT均可抑制JNK磷酸化;BUD、DXM组p-JNK表达均较LNT组低（均P＜0.01）;肺组织p-JNK A_m与BALF中EOS%呈显著正相关（P＜0.01）,Wat、Wam与p-JNK A_m均呈显著正相关（均P＜0.01）。结论 BUD、DXM、LNT有减轻哮喘气道EOS炎症,抑制哮喘气道重塑的作用,其机制可能与其下调JNK表达有关;LNT抑制气道重塑的作用较糖皮质激素弱。