CN116270970A - 甘露聚糖肽在制备治疗脱发药物中的应用 - Google Patents
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Abstract
本发明公开了甘露聚糖肽在制备治疗脱发药物中的应用,通过动物学实验体内验证,甘露聚糖肽可通过激活毛囊干细胞促进化疗性脱发或衰老性脱发的毛发再生,为治疗化疗性脱发和衰老性脱发的新药研究提供了新的方向。
Description
技术领域
本发明涉及生物技术及医药领域,具体涉及甘露聚糖肽在制备治疗脱发药物中的应用。
背景技术
严重的脱发对患者的形象和个体心理造成极大的困扰和负担,可导致患者自尊心受挫、身体意象消极、焦虑甚至产生抑郁等。化疗性脱发(Chemo-induced alopecia,CIA)一般高发在化疗后2至4周,待化疗结束后3至6个月,患者的毛发才有可能恢复生长,但也有可能永久性CIA的情况出现。可诱导严重CIA的药物常见于以下几类:①烷化剂,如环磷酰胺、顺铂;②细胞毒药物,如阿霉素;③抗微管药物,如紫杉醇;④拓扑异构酶抑制剂,如依托泊苷。国内外学者针对CIA病理机制开展了许多的基础研究和临床试验,提供了很多观点理论和研究成果,但至今,CIA的根本发病机制尚未得到明确阐释,有关其行之有效的防治方案,也未得到确立。
甘露聚糖肽,也称α-甘露聚糖肽或多抗甲素(Polyactin A,PAA),主要通过α-溶血性链球菌(Streptococcus hemolytic-α)发酵制备而得,临床上常用于免疫功能低下、反复呼吸道感染、白细胞减少症和再生障碍性贫血及肿瘤的辅助治疗,减轻放、化疗对造血系统的不良反应和胃肠道反应。然而目前尚未见甘露聚糖肽在制备治疗脱发药物中的应用的文献报道。
发明内容
鉴于此,本发明的目的在于提供甘露聚糖肽在制备治疗脱发药物中的应用。
本发明所述的脱发为化疗性脱发或衰老性脱发。
优选地,所述甘露聚糖肽的重均分子量为30-100KD。
进一步地,所述药物包含有效含量的甘露聚糖肽及药学上可接受的药用载体或药用赋形剂。本发明所述药学上可接受的药用载体或药用赋形剂包括任何和所有的溶剂、分散介质、包衣、抗细菌和抗真菌剂、等渗剂和吸收延迟剂等。将此种介质和试剂用于药物活性物质的用途在本领域中是众所周知的。除非任何常规介质或药剂与活性成分不相容,否则可以预期其在治疗药物中的使用。补充活性成分也可以并入到该药物中。
药物可以以方便的方式给予,例如通过口服、静脉内(在水溶性的情况)、肌内、皮下、腹腔内、经鼻、皮内或栓剂途径或植入(例如,使用缓慢释放分子通过腹膜内途径或通过使用细胞或者慢病毒并继转移到接受者。
优选地,所述药物的剂型为片剂、胶囊剂、冲剂、口服液体制剂、静脉或肌肉注射剂。
本发明的药物剂型可按照本领域常规制备方法制备得到。
本发明提供了甘露聚糖肽在制备治疗脱发药物中的新用途,通过动物学实验体内验证,甘露聚糖肽可通过激活毛囊干细胞促进化疗性脱发或衰老性脱发的毛发再生,为治疗化疗性脱发和衰老性脱发的新药研究提供了新的方向。
附图说明
图1 为甘露聚糖肽的HPLC图;
图2为甘露聚糖肽对化疗性脱发小鼠干预4天的实验结果;
图3为甘露聚糖肽对老年脱发小鼠干预4天的实验结果。
实施方式
下面通过具体实施方式来进一步说明本发明,以下实施例为本发明具体的实施方式,但本发明的实施方式并不受下述实施例的限制。
甘露聚糖肽由已分离鉴定的甲型溶血性链球菌通过液体培养基发酵,采用MRS培养液培养;培养液采用巴氏灭活,经高速离心菌体;培养液进行浓缩,65~70%乙醇反复沉淀;采用盐酸调节pH为1.3~1.7左右,静置,去除蛋白质;采用截留分子量30KD和100KD的超滤膜进行超滤,加入3%活性碳,80℃保温循环30分钟,0.22μm PPES过滤,收取甘露聚糖肽;最后采用HPLC检测,色谱柱: TSKgel 5000PWXL柱;流动相为纯水,流速0.8 mL·min-1;柱温:35℃,进样量10 μL。结果如图1所示,重均分子量Mw应为30000~100000之间。
将20只SPF级10周龄雌性KM小鼠,随机分为2组,每组10只,分别为模型组和给药组。第1天,采用宠物剃毛器和脱毛膏脱去背部毛发(约6 cm×5 cm),并分别腹腔注射给予150 mg/kg注射用环磷酰胺。于第3天补充注射100 mg/kg注射用环磷酰胺造成脱毛模型。不经其他处理,普通饲养1天,若小鼠毛发无自行恢复生长的情况后,方可进行给药处。从第5天开始,模型组每天皮下注射0.1 ml生理盐水,给药组每天皮下注射0.1ml甘露聚糖肽(1mg/ml),观察并记录各组毛发生长情况和检测病理切片HE染色及免疫荧光染色情况。
结果如图2所示,经过4天的治疗后,模型组与给药组的毛发生长情况显著差异,HE染色结果显示,模型组中毛囊多数处于休止期,给药组的毛囊则多见处于生长期,呈现快速分裂分化态;免疫荧光染色结果显示,给药组的毛囊干细胞周围的Treg细胞与模型组对比显著增多且毛囊干细胞被激活从静息状态进入分化状态。
将20只SPF级10月龄雄性KM小鼠,随机分为2组,每组10只,分别为模型组和给药组。采用脱毛膏进行脱毛,模型组每天皮下注射0.1 ml生理盐水,给药组每天皮下注射0.1ml甘露聚糖肽(1 mg/ml),观察并记录各组毛发生长情况和和检测病理切片HE染色及免疫荧光染色情况。
结果如图3所示,经过4天的治疗后,模型组与给药组的毛发生长情况显著差异,HE染色结果显示,模型组中毛囊多数处于休止期,给药组的毛囊则多见处于生长期,呈现快速分裂分化态;免疫荧光染色结果显示,给药组的毛囊干细胞周围的Treg细胞与模型组对比显著增多且毛囊干细胞被激活从静息状态进入分化状态。
以上结果表明,甘露聚糖肽可通过激活毛囊干细胞促进化疗性脱发或衰老性脱发的毛发再生,验证了甘露聚糖肽作为治疗脱发的药物的疗效,同时也明确了其治疗的药理学原理。
Claims (5)
1.甘露聚糖肽在制备治疗脱发药物中的应用。
2.根据权利要求1所述的应用,其特征在于,所述脱发为化疗性脱发或衰老性脱发。
3.根据权利要求1所述的应用,其特征在于,所述甘露聚糖肽的重均分子量为30-100KD。
4.根据权利要求1所述的应用,其特征在于,所述药物包含有效含量的甘露聚糖肽及药学上可接受的药用赋形剂或药用载体。
5.根据权利要求1所述的应用,其特征在于,所述药物的剂型为片剂、胶囊剂、冲剂、口服液体制剂、静脉或肌肉注射剂。
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CN1440980A (zh) * | 2003-03-31 | 2003-09-10 | 成都利尔药业有限公司 | 甘露聚糖肽及其制备工艺和用途 |
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