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利用内源性干细胞原位再生晶状体治疗婴幼儿白内障
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科技导报 | 专题论文 2018,36(7): 37-42
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科技导报 | 专题论文 2018, 36(7): 37-42
利用内源性干细胞原位再生晶状体治疗婴幼儿白内障
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刘奕志
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    中山大学中山眼科中心, 广州 510060
Pediatric cataract therapy with endogenous stem cells-mediated lens regeneration
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出版时间: 2018-04-13 doi: 10.3981/j.issn.1000-7857.2018.07.006
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利用内源性干细胞进行组织器官的修复和再生是再生医学研究的最终目标。婴幼儿白内障是幼儿致盲性眼病的首要病因,目前尚无有效治疗手段。本研究组从哺乳动物内成功分离并获得了晶状体上皮干细胞,证明Pax6和Bmi1是维持其分化和自我更新的关键因子,并以保留内源性干细胞为目标,设计了全新的白内障术式。相较于传统术式,新术式最大程度地保留了内源性干细胞、基底膜和微环境,在新西兰兔、食蟹猴和先天性白内障患儿内实现了功能性晶状体的再生。研究结果为白内障提供了全新的治疗策略并为组织再生及内源性干细胞的应用提供了全新的范例。
内源性干细胞  /  晶状体再生  /  婴幼儿白内障
Repair and regeneration of tissues using endogenous stem cells represent an ultimate goal in regenerative medicine. To our knowledge, human lens regeneration has not yet been demonstrated. Currently, the only treatment for cataracts, the leading cause of blindness worldwide, is to extract the cataractous lens and implant an artificial intraocular lens. However, this procedure may pose notable risks of complications. In this paper we isolate lens epithelial stem/progenitor cells (LECs) in mammals and show that Pax6 and Bmi1 are required for LEC renewal. We design a surgical method for removal of cataract that preserves endogenous LECs and achieves functional regeneration of lens in rabbits and macaques, as well as in human infants with cataracts. Our method differs conceptually from the current practice, preserves endogenous LECs and their natural environment maximally, and regenerates lenses with visual function. Our approach demonstrates a novel treatment strategy for cataracts and provides a new paradigm for tissue regeneration using endogenous stem cells.
endogenous stem cells  /  lens regeneration  /  pediatric cataract
刘奕志. 利用内源性干细胞原位再生晶状体治疗婴幼儿白内障. 科技导报, 2018 , 36 (7) : 37 -42 . DOI: 10.3981/j.issn.1000-7857.2018.07.006
LIU Yizhi. Pediatric cataract therapy with endogenous stem cells-mediated lens regeneration[J]. Science & Technology Review, 2018 , 36 (7) : 37 -42 . DOI: 10.3981/j.issn.1000-7857.2018.07.006
2018年第36卷第7期
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doi: 10.3981/j.issn.1000-7857.2018.07.006
  • 接收时间:2018-02-15
  • 首发时间:2018-04-27
  • 出版时间:2018-04-13
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  • 收稿日期:2018-02-15
  • 修回日期:2018-03-23
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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