CN115463260A - 一种羊膜上皮细胞胶原海绵复合体的制备方法及应用 - Google Patents
一种羊膜上皮细胞胶原海绵复合体的制备方法及应用 Download PDFInfo
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Abstract
本发明涉及一种羊膜上皮细胞胶原海绵复合体的制备方法,涉及生物技术领域,包括以下步骤:羊膜组织的处理;羊膜上皮细胞的培养;羊膜上皮细胞胶原海绵复合体的制备。上述制备方法操作简单、成本较低且可控性强,羊膜上皮细胞外泌体能显著增加化疗损伤卵巢卵泡数量,抑制化疗药物诱导的卵巢急性血管损伤及颗粒细胞凋亡,部分抑制化疗药物诱导的原始卵泡激活,因此可用于修复化疗损伤后的卵巢功能、减轻化疗药物对卵巢的损伤、防治化疗药物引起的卵巢早衰或防治化疗引起的不孕不育。
Description
技术领域
本发明涉及生物技术领域,具体涉及一种羊膜上皮细胞胶原海绵复合体的制备方法及应用。
背景技术
源于胎盘羊膜组织,表达干细胞标志分子及相关基因,但不表达端粒酶基因,具有非致瘤性,同种异体移植后不发生免疫排斥反应,同时还可分泌免疫抑制因子,防止移植后炎性反应的发生,因此可以看作是免疫赦免细胞。羊膜上皮细胞具有多能干细胞特性和向三胚层细胞分化的潜能,免疫原性低,移植后无致瘤性,伦理道德问题少,取材方便、来源丰富、是细胞治疗较理想的种子细胞来源。
羊膜上皮细胞胶原海绵复合体不同过静脉注射,也无需手术,操作难度小,可由患者在家独立完成,风险相对较小且CK-19、bFGF、Nanog、GFAP、mRNA、Nestin表达均呈上调趋势,其中Nestin表达上调的差异有统计学意义。
羊膜上皮细胞胶原海绵复合体是一种具有生物活性的填塞物,其保存环境要求高,效期短,目前的保存想达到最佳的治疗效果,仍然只能采取个性化预定的模式。另外,部分对胶原蛋白过敏的患者可能会引起局部的过敏反应。
发明内容
针对现有技术的缺陷,本发明的目的是提供一种羊膜上皮细胞胶原海绵复合体的制备方法,以解决上述背景技术中提出的问题。
本发明解决技术问题采用如下技术方案:
本发明提供了一种羊膜上皮细胞胶原海绵复合体的制备方法,包括以下步骤:
S1、将足月健康产妇的羊膜组织用手术剪剪下后收集到离心管中;
S2、用生理盐水漂洗3遍;
S3、用手术剪将羊膜组织剪成靡状;
S4、按1:1的比例加入0.25%胰酶消化30min;
S5、加入胰酶等体积的完全培养基终止消化;
S6、200目滤网过滤收集滤液到新的离心管中;
S7、1500rpm/min离心10分钟,去上清;
S8、完全培养基重悬沉淀,接种到培养瓶培养,3天换液一次;
S9、当细胞融合度达到70%-80%时,等体积完全培养基终止消化,离心去上清,完全培养基重悬沉淀,接种到培养瓶中5%CO2,37℃培养;
S10、将胶原海绵平铺于D15cm培养皿中,加入30ml完全培养基充分浸润备用;
S11、待S9中细胞融合度达到70%-80%时,用0.25%胰酶消化贴壁细胞2-3min,等体积完全培养基终止消化,离心去上清,完全培养基重悬沉淀,接种到S10中浸润好的胶原海绵培养皿中5%CO2,37℃培养,4天后收集胶原海绵为羊膜上皮细胞胶原海绵复合体。
优选地,所述S8接种到培养瓶中4-6%CO2,35-38℃培养。
优选地,所述S9细胞融合度达到70%-80%时,用0.25%胰酶消化贴壁细胞2-3min。
优选地,所述完全培养基配方为:Hyclone MEMα95%+HELIOS血替5%。
优选地,所述S9中细胞融合度达到70%-80%时,Keratin染色呈阳性胞浆棕黄色,苏木素复染的核呈蓝色,培养的细胞为上皮细胞。
优选地,所述S11获取羊膜上皮细胞胶原海绵复合体前取完全培养基内毒素、无菌检测均为阴性。
本发明还提供了一种羊膜上皮细胞胶原海绵复合体的制备方法在卵巢早衰的治疗、化疗后卵巢血管损伤的修复、化疗后卵巢功能的修复中应用。
与现有技术相比,本发明具有如下的有益效果:
本发明人羊膜上皮细胞外泌体能显著增加化疗损伤卵巢卵泡数量,抑制化疗药物诱导的卵巢急性血管损伤及颗粒细胞凋亡,部分抑制化疗药物诱导的原始卵泡激活,因此可用于修复化疗损伤后的卵巢功能、减轻化疗药物对卵巢的损伤、防治化疗药物引起的卵巢早衰或防治化疗引起的不孕不育。
具体实施方式
下面结合具体实施例,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
本实施例的一种羊膜上皮细胞胶原海绵复合体的制备方法,包括以下步骤:
S1、将足月健康产妇的羊膜组织用手术剪剪下后收集到离心管中;
S2、用生理盐水漂洗3遍;
S3、用手术剪将羊膜组织剪成靡状;
S4、按1:1的比例加入0.25%胰酶消化30min;
S5、加入胰酶等体积的完全培养基终止消化;
S6、200目滤网过滤收集滤液到新的离心管中;
S7、1500rpm/min离心10分钟,去上清;
S8、完全培养基重悬沉淀,接种到培养瓶培养,3天换液一次;
S9、当细胞融合度达到70%-80%时,等体积完全培养基终止消化,离心去上清,完全培养基重悬沉淀,接种到培养瓶中5%CO2,37℃培养;
S10、将胶原海绵平铺于D15cm培养皿中,加入30ml完全培养基充分浸润备用;
S11、待S9中细胞融合度达到70%-80%时,用0.25%胰酶消化贴壁细胞2-3min,等体积完全培养基终止消化,离心去上清,完全培养基重悬沉淀,接种到S10中浸润好的胶原海绵培养皿中5%CO2,37℃培养,4天后收集胶原海绵为羊膜上皮细胞胶原海绵复合体。
本实施例的S8接种到培养瓶中4-6%CO2,35-38℃培养。
本实施例的S9细胞融合度达到70%-80%时,用0.25%胰酶消化贴壁细胞2-3min。
本实施例的完全培养基配方为:Hyclone MEMα95%+HELIOS血替5%。
本实施例的S9中细胞融合度达到70%-80%时,Keratin染色呈阳性胞浆棕黄色,苏木素复染的核呈蓝色,培养的细胞为上皮细胞。
本实施例的S11获取羊膜上皮细胞胶原海绵复合体前取完全培养基内毒素、无菌检测均为阴性。
本实施例的一种羊膜上皮细胞胶原海绵复合体的制备方法在卵巢早衰的治疗、化疗后卵巢血管损伤的修复、化疗后卵巢功能的修复中应用。
实施例1.
本实施例的一种羊膜上皮细胞胶原海绵复合体的制备方法,包括以下步骤:
S1、将足月健康产妇的羊膜组织用手术剪剪下后收集到离心管中;
S2、用生理盐水漂洗3遍;
S3、用手术剪将羊膜组织剪成靡状;
S4、按1:1的比例加入0.25%胰酶消化30min;
S5、加入胰酶等体积的完全培养基终止消化;
S6、200目滤网过滤收集滤液到新的离心管中;
S7、1500rpm/min离心10分钟,去上清;
S8、完全培养基重悬沉淀,接种到培养瓶培养,3天换液一次;
S9、当细胞融合度达到70%时,等体积完全培养基终止消化,离心去上清,完全培养基重悬沉淀,接种到培养瓶中5%CO2,37℃培养;
S10、将胶原海绵平铺于D15cm培养皿中,加入30ml完全培养基充分浸润备用;
S11、待S9中细胞融合度达到70%时,用0.25%胰酶消化贴壁细胞2min,等体积完全培养基终止消化,离心去上清,完全培养基重悬沉淀,接种到S10中浸润好的胶原海绵培养皿中5%CO2,37℃培养,4天后收集胶原海绵为羊膜上皮细胞胶原海绵复合体。
本实施例的S8接种到培养瓶中4%CO2,35℃培养。
本实施例的S9细胞融合度达到70%时,用0.25%胰酶消化贴壁细胞2min。
本实施例的完全培养基配方为:Hyclone MEMα95%+HELIOS血替5%。
本实施例的S9中细胞融合度达到70%-80%时,Keratin染色呈阳性胞浆棕黄色,苏木素复染的核呈蓝色,培养的细胞为上皮细胞。
本实施例的S11获取羊膜上皮细胞胶原海绵复合体前取完全培养基内毒素、无菌检测均为阴性。
本实施例的一种羊膜上皮细胞胶原海绵复合体的制备方法在卵巢早衰的治疗、化疗后卵巢血管损伤的修复、化疗后卵巢功能的修复中应用。
实施例2.
本实施例的一种羊膜上皮细胞胶原海绵复合体的制备方法,包括以下步骤:
S1、将足月健康产妇的羊膜组织用手术剪剪下后收集到离心管中;
S2、用生理盐水漂洗3遍;
S3、用手术剪将羊膜组织剪成靡状;
S4、按1:1的比例加入0.25%胰酶消化30min;
S5、加入胰酶等体积的完全培养基终止消化;
S6、200目滤网过滤收集滤液到新的离心管中;
S7、1500rpm/min离心10分钟,去上清;
S8、完全培养基重悬沉淀,接种到培养瓶培养,3天换液一次;
S9、当细胞融合度达到80%时,等体积完全培养基终止消化,离心去上清,完全培养基重悬沉淀,接种到培养瓶中5%CO2,37℃培养;
S10、将胶原海绵平铺于D15cm培养皿中,加入30ml完全培养基充分浸润备用;
S11、待S9中细胞融合度达到780%时,用0.25%胰酶消化贴壁细胞3min,等体积完全培养基终止消化,离心去上清,完全培养基重悬沉淀,接种到S10中浸润好的胶原海绵培养皿中5%CO2,37℃培养,4天后收集胶原海绵为羊膜上皮细胞胶原海绵复合体。
本实施例的S8接种到培养瓶中4-6%CO2,35-38℃培养。
本实施例的S9细胞融合度达到80%时,用0.25%胰酶消化贴壁细胞2-3min。
本实施例的完全培养基配方为:Hyclone MEMα95%+HELIOS血替5%。
本实施例的S9中细胞融合度达到80%时,Keratin染色呈阳性胞浆棕黄色,苏木素复染的核呈蓝色,培养的细胞为上皮细胞。
本实施例的S11获取羊膜上皮细胞胶原海绵复合体前取完全培养基内毒素、无菌检测均为阴性。
本实施例的一种羊膜上皮细胞胶原海绵复合体的制备方法在卵巢早衰的治疗、化疗后卵巢血管损伤的修复、化疗后卵巢功能的修复中应用。
实施例3.
本实施例的一种羊膜上皮细胞胶原海绵复合体的制备方法,包括以下步骤:
S1、将足月健康产妇的羊膜组织用手术剪剪下后收集到离心管中;
S2、用生理盐水漂洗3遍;
S3、用手术剪将羊膜组织剪成靡状;
S4、按1:1的比例加入0.25%胰酶消化30min;
S5、加入胰酶等体积的完全培养基终止消化;
S6、200目滤网过滤收集滤液到新的离心管中;
S7、1500rpm/min离心10分钟,去上清;
S8、完全培养基重悬沉淀,接种到培养瓶培养,3天换液一次;
S9、当细胞融合度达到75%时,等体积完全培养基终止消化,离心去上清,完全培养基重悬沉淀,接种到培养瓶中5%CO2,37℃培养;
S10、将胶原海绵平铺于D15cm培养皿中,加入30ml完全培养基充分浸润备用;
S11、待S9中细胞融合度达到75%时,用0.25%胰酶消化贴壁细胞2.5min,等体积完全培养基终止消化,离心去上清,完全培养基重悬沉淀,接种到S10中浸润好的胶原海绵培养皿中5%CO2,37℃培养,4天后收集胶原海绵为羊膜上皮细胞胶原海绵复合体。
本实施例的S8接种到培养瓶中5%CO2,37℃培养。
本实施例的S9细胞融合度达到75%时,用0.25%胰酶消化贴壁细胞2.5min。
本实施例的完全培养基配方为:Hyclone MEMα95%+HELIOS血替5%。
本实施例的S9中细胞融合度达到75%时,Keratin染色呈阳性胞浆棕黄色,苏木素复染的核呈蓝色,培养的细胞为上皮细胞。
本实施例的S11获取羊膜上皮细胞胶原海绵复合体前取完全培养基内毒素、无菌检测均为阴性。
本实施例的一种羊膜上皮细胞胶原海绵复合体的制备方法在卵巢早衰的治疗、化疗后卵巢血管损伤的修复、化疗后卵巢功能的修复中应用。
实施例4.
本实施例的一种羊膜上皮细胞胶原海绵复合体的制备方法,包括以下步骤:
S1、将足月健康产妇的羊膜组织用手术剪剪下后收集到离心管中;
S2、用生理盐水漂洗3遍;
S3、用手术剪将羊膜组织剪成靡状;
S4、按1:1的比例加入0.25%胰酶消化30min;
S5、加入胰酶等体积的完全培养基终止消化;
S6、200目滤网过滤收集滤液到新的离心管中;
S7、1500rpm/min离心10分钟,去上清;
S8、完全培养基重悬沉淀,接种到培养瓶培养,3天换液一次;
S9、当细胞融合度达到70%-80%时,等体积完全培养基终止消化,离心去上清,完全培养基重悬沉淀,接种到培养瓶中5%CO2,37℃培养;
S10、将胶原海绵平铺于D15cm培养皿中,加入30ml完全培养基充分浸润备用;
S11、待S9中细胞融合度达到72%时,用0.25%胰酶消化贴壁细胞2min,等体积完全培养基终止消化,离心去上清,完全培养基重悬沉淀,接种到S10中浸润好的胶原海绵培养皿中5%CO2,37℃培养,4天后收集胶原海绵为羊膜上皮细胞胶原海绵复合体。
本实施例的S8接种到培养瓶中5%CO2,36℃培养。
本实施例的S9细胞融合度达到72%时,用0.25%胰酶消化贴壁细胞2min。
本实施例的完全培养基配方为:Hyclone MEMα95%+HELIOS血替5%。
本实施例的S9中细胞融合度达到72%时,Keratin染色呈阳性胞浆棕黄色,苏木素复染的核呈蓝色,培养的细胞为上皮细胞。
本实施例的S11获取羊膜上皮细胞胶原海绵复合体前取完全培养基内毒素、无菌检测均为阴性。
本实施例的一种羊膜上皮细胞胶原海绵复合体的制备方法在卵巢早衰的治疗、化疗后卵巢血管损伤的修复、化疗后卵巢功能的修复中应用。
实施例5.
本实施例的一种羊膜上皮细胞胶原海绵复合体的制备方法,包括以下步骤:
S1、将足月健康产妇的羊膜组织用手术剪剪下后收集到离心管中;
S2、用生理盐水漂洗3遍;
S3、用手术剪将羊膜组织剪成靡状;
S4、按1:1的比例加入0.25%胰酶消化30min;
S5、加入胰酶等体积的完全培养基终止消化;
S6、200目滤网过滤收集滤液到新的离心管中;
S7、1500rpm/min离心10分钟,去上清;
S8、完全培养基重悬沉淀,接种到培养瓶培养,3天换液一次;
S9、当细胞融合度达到78%时,等体积完全培养基终止消化,离心去上清,完全培养基重悬沉淀,接种到培养瓶中5%CO2,37℃培养;
S10、将胶原海绵平铺于D15cm培养皿中,加入30ml完全培养基充分浸润备用;
S11、待S9中细胞融合度达到79%时,用0.25%胰酶消化贴壁细胞2min,等体积完全培养基终止消化,离心去上清,完全培养基重悬沉淀,接种到S10中浸润好的胶原海绵培养皿中5%CO2,37℃培养,4天后收集胶原海绵为羊膜上皮细胞胶原海绵复合体。
本实施例的S8接种到培养瓶中5%CO2,37℃培养。
本实施例的S9细胞融合度达到78%时,用0.25%胰酶消化贴壁细胞3min。
本实施例的完全培养基配方为:Hyclone MEMα95%+HELIOS血替5%。
本实施例的S9中细胞融合度达到78%时,Keratin染色呈阳性胞浆棕黄色,苏木素复染的核呈蓝色,培养的细胞为上皮细胞。
本实施例的S11获取羊膜上皮细胞胶原海绵复合体前取完全培养基内毒素、无菌检测均为阴性。
本实施例的一种羊膜上皮细胞胶原海绵复合体的制备方法在卵巢早衰的治疗、化疗后卵巢血管损伤的修复、化疗后卵巢功能的修复中应用。
接种到胶原海绵后,细胞充满胶原海绵支架上及孔洞中,仍然呈扁平多角形,轮廓清晰,细胞及细胞核成长梭形,与传统培养相比细胞直径变小,在胶原海绵中沿支架孔洞表面生长良好,于孔洞中可见“悬浮”细胞,细胞伸出突起与胶原支架相连,覆盖在支架孔洞表面的细胞大多胞体隆起成球形,更贴近体内生长环境。在支架及孔洞中生长的细胞均呈较活跃的有丝分裂状。
胶原海绵后与传统培养相比CK-19、bFGF、Nanog、GFAP、mRNA、Nestin表达均呈上调趋势,其中Nestin表达上调的差异有统计学意义。
对于本领域技术人员而言,显然本发明不限于上述示范性实施例的细节,而且在不背离本发明的精神或基本特征的情况下,能够以其他的具体形式实现本发明。因此,无论从哪一点来看,均应将实施例看作是示范性的,而且是非限制性的,本发明的范围由所附权利要求而不是上述说明限定,因此旨在将落在权利要求的等同要件的含义和范围内的所有变化囊括在本发明内。
此外,应当理解,虽然本说明书按照实施方式加以描述,但并非每个实施方式仅包含一个独立的技术方案,说明书的这种叙述方式仅仅是为清楚起见,本领域技术人员应当将说明书作为一个整体,各实施例中的技术方案也可以经适当组合,形成本领域技术人员可以理解的其他实施方式。
Claims (7)
1.一种羊膜上皮细胞胶原海绵复合体的制备方法,其特征在于,包括以下步骤:
S1、将足月健康产妇的羊膜组织用手术剪剪下后收集到离心管中;
S2、用生理盐水漂洗3遍;
S3、用手术剪将羊膜组织剪成靡状;
S4、按1:1的比例加入0.25%胰酶消化30min;
S5、加入胰酶等体积的完全培养基终止消化;
S6、200目滤网过滤收集滤液到新的离心管中;
S7、1500rpm/min离心10分钟,去上清;
S8、完全培养基重悬沉淀,接种到培养瓶培养,3天换液一次;
S9、当细胞融合度达到70%-80%时,等体积完全培养基终止消化,离心去上清,完全培养基重悬沉淀,接种到培养瓶中5%CO2,37℃培养;
S10、将胶原海绵平铺于D15cm培养皿中,加入30ml完全培养基充分浸润备用;
S11、待S9中细胞融合度达到70%-80%时,用0.25%胰酶消化贴壁细胞2-3min,等体积完全培养基终止消化,离心去上清,完全培养基重悬沉淀,接种到S10中浸润好的胶原海绵培养皿中5%CO2,37℃培养,4天后收集胶原海绵为羊膜上皮细胞胶原海绵复合体。
2.根据权利要求1所述的一种羊膜上皮细胞胶原海绵复合体的制备方法,其特征在于,所述S8接种到培养瓶中4-6%CO2,35-38℃培养。
3.根据权利要求1所述的一种羊膜上皮细胞胶原海绵复合体的制备方法,其特征在于,所述S9细胞融合度达到70%-80%时,用0.25%胰酶消化贴壁细胞2-3min。
4.根据权利要求1所述的一种羊膜上皮细胞胶原海绵复合体的制备方法,其特征在于,所述完全培养基配方为:Hyclone MEMα95%+HELIOS血替5%。
5.根据权利要求1所述的一种羊膜上皮细胞胶原海绵复合体的制备方法,其特征在于,所述S9中细胞融合度达到70%-80%时,Keratin染色呈阳性胞浆棕黄色,苏木素复染的核呈蓝色,培养的细胞为上皮细胞。
6.根据权利要求1所述的一种羊膜上皮细胞胶原海绵复合体的制备方法,其特征在于,所述S11获取羊膜上皮细胞胶原海绵复合体前取完全培养基内毒素、无菌检测均为阴性。
7.一种如权利要求1-6任一项所述羊膜上皮细胞胶原海绵复合体的制备方法在卵巢早衰的治疗、化疗后卵巢血管损伤的修复、化疗后卵巢功能的修复中应用。
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