Photochemical Internalization of Tumor-Targeted Protein Toxins

被引：52

作者：

Weyergang, Anette ^{[1
]}

Selbo, Pal K. ^{[1
,2
]}

Berstad, Maria E. B. ^{[1
]}

Bostad, Monica ^{[1
]}

Berg, Kristian ^{[1
]}

机构：

[1] Oslo Univ Hosp, Norwegian Radium Hosp, Dept Radiat Biol, Inst Canc Res, N-0310 Oslo, Norway

[2] PCI Biotech AS, N-1366 Lysaker, Norway

来源：

LASERS IN SURGERY AND MEDICINE | 2011年 / 43卷 / 07期

关键词：

photodynamic; PDT; PCI; targeting; saporin; gelonin; RIBOSOME-INACTIVATING PROTEINS; MONOCLONAL-ANTIBODIES; MECHANISMS;

D O I：

10.1002/lsm.21084

中图分类号：

R75 [皮肤病学与性病学];

学科分类号：

100206 ;

摘要：

Photochemical internalization (PCI) is a method for intracellular delivery of hydrophilic macromolecular drugs with intracellular targets as well as other drugs with limited ability to penetrate cellular membranes. Such drugs enter cells by means of endocytosis and are to a large extent degraded by hydrolytic enzymes in the lysosomes unless they possess a mechanism for cytosolic translocation. PCI is based on photodynamic therapy (PDT) specifically targeting the endosomes and lysosomes of the cells, so that the drugs in these vesicles can escape into the cytosol from where they can reach their targets. The preferential retention of the photosensitizer (PS) in tumor tissue in combination with controlled light delivery makes PCI relatively selective for cancer tissue. The tumor specificity of PCI can be further increased by delivery of drugs that selectively target the tumors. Indeed, this has been shown by PCI delivery of several targeted protein toxins. Targeted protein toxins may be regarded as ideal drugs for PCI delivery, and may represent the clinical future for the PCI technology. Lasers Surg. Med. 43: 721-733, 2011. (C) 2011 Wiley-Liss, Inc.

引用

页码：721 / 733

页数：13

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