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夏枯草的抗肿瘤作用研究进展
摘要
肿瘤是机体在各种致癌因素作用下,局部组织的某一个细胞在基因水平上失去对其生长的正常调控,导致其克隆性异常增生而形成的异常病变。严重影响了人类的生活质量,甚至威胁到人类健康,是人类健康的三大杀手之一,因此,肿瘤的治疗药物一直都是医药学研究的重点。化疗、放疗、手术治疗是当今治疗肿瘤的主要手段,但毒副作用比较大。近年来,运用中草药治疗恶性肿瘤越来越被广大学者和患者接受,并已成为常用的治疗方法,是治疗恶性肿瘤综合治疗中的有效手段之一。中药抗肿瘤作用具有多靶点、多环节、多效应的特点,可作用于肿瘤发生、发展的多个环节,同时其副作用低,能提高机体免疫力,不易产生耐药性,为近年来研究的热点。我国的药用植物资源丰富,中药的抗肿瘤活性已得到国际公认。因此开发研制新的植物成分药成为恶性肿瘤治疗的重要课题之一。
作为一种应用历史悠久的中药,夏枯草便成为成为近年来许多学者关注并研究开发的重点之一。夏枯草为唇形科夏枯草属植物夏枯草的干燥成熟果穗,具有清火明目、泻肝火、软坚散结、利尿之功效。有关其抗肿瘤作用有较多的报道,用于目赤肿痛、目珠夜痛、羞明流泪、头痛眩晕、瘰疬、瘿瘤、乳痈肿痛、头痛眩晕,口眼歪斜、筋骨疼痛。临床上多应用于治疗甲状腺肿大、淋巴结核、乳腺增生、乳腺炎、乳癌、肺结核、高血压(有降压、利尿作用)、淋巴结核、侵润性肺结核、单纯性甲状腺肿、腮腺炎、急性黄疸型传染型肝炎、血崩、带下、传然性结膜炎、角膜炎等;另外对痢疾杆菌也有抑制作用。夏枯草主要含有三萜及其苷类、苯丙素类、甾醇及其苷类,黄酮类、香豆素、有机酸、挥发油及糖类等。由于其重要的药用价值和广泛的药理作用,夏枯草越来越引起人们的关注。
夏枯草性寒,味苦、辛,入肝、胆二经,具有清肝明目、散结消肿的功效,多用治疗目赤肿痛、头痛眩晕、瘰疬、瘿瘤、乳痈肿痛、甲状腺肿大、淋巴结结核、高血压等病症。
夏枯草的抗肿瘤机制研究主要包括:直接抑制肿瘤生长与增值作用、诱导肿瘤细胞调亡,诱导肿瘤细胞分化、逆转肿瘤多耐药性等几个方面。夏枯草作为一种廉价、低毒、有效的抗肿瘤中药,将有更广阔的应用前景。本文对夏枯草的抗肿瘤作用和机制研究进展进行概述。
关键词:夏枯草,抗肿瘤机制、散结消肿
目录
摘要························································6
目录························································6,7
第1章、夏枯草的抗肿瘤作用机制······························7,8,9
1.1直接抑制肿瘤生长与增值作用····························7,8
1.2诱导肿瘤细胞调亡······································8
1.3诱导肿瘤细胞分化······································8
1.4逆转肿瘤多药耐药性····································8
1.5抑制肿瘤细胞侵袭转移··································9
第2章、夏枯草对各种癌细胞的影响···························9,10,11,12
2.1肺癌··················································9
2.2乳腺癌················································9
2.3眼疾··················································10
2.4淋巴瘤················································10
2.5甲状腺癌··············································10
2.6膀胱癌················································10,11
2.7结肠癌················································11
2.8鼻咽癌················································11
2.9脑胶质瘤··············································11,12
3.0其他··················································12
第3章、总结与展望··········································12
参考文献···················································13,14
致谢··················································14
第1章、夏枯草的抗肿瘤作用机制
直接抑制肿瘤生长与增殖作用