Laser-triggered intraocular implant to induce photodynamic therapy for posterior capsule opacification prevention.

Laser-triggered intraocular implant to induce photodynamic therapy for posterior capsule opacification prevention.
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激光触发眼内植入物诱导光动力治疗以预防后囊混浊。

DOI:
10.1016/j.ijpharm.2015.10.006
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发表时间:
2016-02
影响因子:
5.8
通讯作者:
Chunshun Zhao
Chunshun Zhao
中科院分区:
医学2区
文献类型:
--
作者:
Yuanfeng He;Mina Yan;Xuefei Zhang;Chunshun Zhao

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后囊膜混浊是白内障术后再次失明的主要原因之一。本研究采用吲哚菁绿色(ICG)对人工晶状体进行修饰,并用PLGA密封,形成长期人工晶状体(ICG-IOL)。当被激光触发时,ICG-IOL可诱导光动力学治疗(PDT),体外细胞活性试验和划痕愈合试验表明ICG-IOL能有效抑制HLEpiC的增殖和迁移,而不对远处的细胞造成损伤,激光衰减试验表明ICG-IOL可在体内应用,体内药效学和安全性研究表明ICG-IOL能有效抑制HLEpiC的增殖和迁移,并能有效地抑制HLEpiC的增殖和迁移。人工晶状体可明显预防后囊膜混浊的发生,对眼内正常组织是安全的。所有这些结果表明,ICG-IOL将是一个非常有前途的候选人,为PCO的预防。
Posterior capsule opacification (PCO) is one of the main reasons for loss of vision again after cataract surgery. In this study, intraocular lenses were modified with indocyanine green (ICG) and sealed up with PLGA to form long-term intraocular implants (ICG-IOL). When triggered by laser, ICG-IOL would induce photodynamic therapy (PDT).In-vitrocell viability assay and scratch wound healing assay demonstrated that ICG-IOL could effectively inhibit HLEpiC proliferation and migration without causing damage to the cells far away from it. Laser attenuation test indicated that ICG-IOL could be appliedin vivo.In-vivopharmacodynamics and safety study showed that ICG-IOL could significantly prevent the occurrence of PCO and was safe for intraocular normal tissue. All these results suggested that ICG-IOL would be a very promising candidate for PCO prevention.
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